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authorMamadou DIOP <bossiel@yahoo.fr>2015-08-17 01:56:35 +0200
committerMamadou DIOP <bossiel@yahoo.fr>2015-08-17 01:56:35 +0200
commit631fffee8a28b1bec5ed1f1d26a20e0135967f99 (patch)
tree74afe3bf3efe15aa82bcd0272b2b0f4d48c2d837 /thirdparties/mac
parent7908865936604036e6f200f1b5e069f8752f3a3a (diff)
downloaddoubango-631fffee8a28b1bec5ed1f1d26a20e0135967f99.zip
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Diffstat (limited to 'thirdparties/mac')
-rw-r--r--thirdparties/mac/include/libavcodec/avcodec.h5108
-rw-r--r--thirdparties/mac/include/libavcodec/avfft.h116
-rw-r--r--thirdparties/mac/include/libavcodec/dxva2.h95
-rw-r--r--thirdparties/mac/include/libavcodec/old_codec_ids.h398
-rw-r--r--thirdparties/mac/include/libavcodec/opt.h55
-rw-r--r--thirdparties/mac/include/libavcodec/vaapi.h173
-rw-r--r--thirdparties/mac/include/libavcodec/vda.h226
-rw-r--r--thirdparties/mac/include/libavcodec/vdpau.h151
-rw-r--r--thirdparties/mac/include/libavcodec/version.h113
-rw-r--r--thirdparties/mac/include/libavcodec/xvmc.h168
-rw-r--r--thirdparties/mac/include/libavdevice/avdevice.h69
-rw-r--r--thirdparties/mac/include/libavdevice/version.h50
-rw-r--r--thirdparties/mac/include/libavfilter/asrc_abuffer.h91
-rw-r--r--thirdparties/mac/include/libavfilter/avcodec.h131
-rw-r--r--thirdparties/mac/include/libavfilter/avfilter.h852
-rw-r--r--thirdparties/mac/include/libavfilter/avfiltergraph.h271
-rw-r--r--thirdparties/mac/include/libavfilter/buffersink.h150
-rw-r--r--thirdparties/mac/include/libavfilter/buffersrc.h95
-rw-r--r--thirdparties/mac/include/libavfilter/version.h64
-rw-r--r--thirdparties/mac/include/libavformat/avformat.h2135
-rw-r--r--thirdparties/mac/include/libavformat/avio.h475
-rw-r--r--thirdparties/mac/include/libavformat/version.h89
-rw-r--r--thirdparties/mac/include/libavutil/adler32.h43
-rw-r--r--thirdparties/mac/include/libavutil/aes.h65
-rw-r--r--thirdparties/mac/include/libavutil/attributes.h154
-rw-r--r--thirdparties/mac/include/libavutil/audio_fifo.h146
-rw-r--r--thirdparties/mac/include/libavutil/audioconvert.h6
-rw-r--r--thirdparties/mac/include/libavutil/avassert.h66
-rw-r--r--thirdparties/mac/include/libavutil/avconfig.h7
-rw-r--r--thirdparties/mac/include/libavutil/avstring.h315
-rw-r--r--thirdparties/mac/include/libavutil/avutil.h260
-rw-r--r--thirdparties/mac/include/libavutil/base64.h67
-rw-r--r--thirdparties/mac/include/libavutil/blowfish.h77
-rw-r--r--thirdparties/mac/include/libavutil/bprint.h200
-rw-r--r--thirdparties/mac/include/libavutil/bswap.h109
-rw-r--r--thirdparties/mac/include/libavutil/channel_layout.h216
-rw-r--r--thirdparties/mac/include/libavutil/common.h436
-rw-r--r--thirdparties/mac/include/libavutil/cpu.h108
-rw-r--r--thirdparties/mac/include/libavutil/crc.h74
-rw-r--r--thirdparties/mac/include/libavutil/dict.h152
-rw-r--r--thirdparties/mac/include/libavutil/error.h117
-rw-r--r--thirdparties/mac/include/libavutil/eval.h113
-rw-r--r--thirdparties/mac/include/libavutil/fifo.h144
-rw-r--r--thirdparties/mac/include/libavutil/file.h66
-rw-r--r--thirdparties/mac/include/libavutil/hmac.h95
-rw-r--r--thirdparties/mac/include/libavutil/imgutils.h200
-rw-r--r--thirdparties/mac/include/libavutil/intfloat.h77
-rw-r--r--thirdparties/mac/include/libavutil/intfloat_readwrite.h40
-rw-r--r--thirdparties/mac/include/libavutil/intreadwrite.h621
-rw-r--r--thirdparties/mac/include/libavutil/lfg.h62
-rw-r--r--thirdparties/mac/include/libavutil/log.h222
-rw-r--r--thirdparties/mac/include/libavutil/lzo.h77
-rw-r--r--thirdparties/mac/include/libavutil/mathematics.h147
-rw-r--r--thirdparties/mac/include/libavutil/md5.h49
-rw-r--r--thirdparties/mac/include/libavutil/mem.h235
-rw-r--r--thirdparties/mac/include/libavutil/old_pix_fmts.h171
-rw-r--r--thirdparties/mac/include/libavutil/opt.h733
-rw-r--r--thirdparties/mac/include/libavutil/parseutils.h174
-rw-r--r--thirdparties/mac/include/libavutil/pixdesc.h237
-rw-r--r--thirdparties/mac/include/libavutil/pixfmt.h357
-rw-r--r--thirdparties/mac/include/libavutil/random_seed.h43
-rw-r--r--thirdparties/mac/include/libavutil/rational.h155
-rw-r--r--thirdparties/mac/include/libavutil/samplefmt.h243
-rw-r--r--thirdparties/mac/include/libavutil/sha.h74
-rw-r--r--thirdparties/mac/include/libavutil/sha1.h57
-rw-r--r--thirdparties/mac/include/libavutil/time.h41
-rw-r--r--thirdparties/mac/include/libavutil/timecode.h140
-rw-r--r--thirdparties/mac/include/libavutil/timestamp.h74
-rw-r--r--thirdparties/mac/include/libavutil/version.h142
-rw-r--r--thirdparties/mac/include/libavutil/xtea.h62
-rw-r--r--thirdparties/mac/include/libpostproc/postprocess.h106
-rw-r--r--thirdparties/mac/include/libswresample/swresample.h311
-rw-r--r--thirdparties/mac/include/libswscale/swscale.h355
-rw-r--r--thirdparties/mac/include/libswscale/version.h59
-rw-r--r--thirdparties/mac/include/openssl/._aes.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._asn1.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._asn1_mac.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._asn1t.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._bio.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._blowfish.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._bn.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._buffer.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._camellia.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._cast.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._cms.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._comp.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._conf.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._conf_api.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._crypto.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._des.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._des_old.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._dh.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._dsa.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._dso.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._dtls1.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._e_os2.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ebcdic.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ec.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ecdh.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ecdsa.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._engine.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._err.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._evp.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._hmac.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._idea.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._krb5_asn.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._kssl.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._lhash.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._md4.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._md5.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._mdc2.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._modes.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._obj_mac.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._objects.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ocsp.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._opensslv.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ossl_typ.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._pem.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._pem2.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._pkcs12.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._pkcs7.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._pqueue.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._rand.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._rc2.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._rc4.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ripemd.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._rsa.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._safestack.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._seed.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._sha.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ssl.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ssl2.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ssl23.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ssl3.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._stack.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._symhacks.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._tls1.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ts.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._txt_db.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ui.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._ui_compat.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._whrlpool.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._x509.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._x509_vfy.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/._x509v3.hbin0 -> 4096 bytes
-rw-r--r--thirdparties/mac/include/openssl/aes.h147
-rw-r--r--thirdparties/mac/include/openssl/asn1.h1404
-rw-r--r--thirdparties/mac/include/openssl/asn1_mac.h578
-rw-r--r--thirdparties/mac/include/openssl/asn1t.h960
-rw-r--r--thirdparties/mac/include/openssl/bio.h847
-rw-r--r--thirdparties/mac/include/openssl/blowfish.h129
-rw-r--r--thirdparties/mac/include/openssl/bn.h891
-rw-r--r--thirdparties/mac/include/openssl/buffer.h119
-rw-r--r--thirdparties/mac/include/openssl/camellia.h130
-rw-r--r--thirdparties/mac/include/openssl/cast.h107
-rw-r--r--thirdparties/mac/include/openssl/cms.h501
-rw-r--r--thirdparties/mac/include/openssl/comp.h80
-rw-r--r--thirdparties/mac/include/openssl/conf.h263
-rw-r--r--thirdparties/mac/include/openssl/conf_api.h89
-rw-r--r--thirdparties/mac/include/openssl/crypto.h604
-rw-r--r--thirdparties/mac/include/openssl/des.h248
-rw-r--r--thirdparties/mac/include/openssl/des_old.h446
-rw-r--r--thirdparties/mac/include/openssl/dh.h280
-rw-r--r--thirdparties/mac/include/openssl/dsa.h327
-rw-r--r--thirdparties/mac/include/openssl/dso.h409
-rw-r--r--thirdparties/mac/include/openssl/dtls1.h283
-rw-r--r--thirdparties/mac/include/openssl/e_os2.h315
-rw-r--r--thirdparties/mac/include/openssl/ebcdic.h19
-rw-r--r--thirdparties/mac/include/openssl/ec.h1159
-rw-r--r--thirdparties/mac/include/openssl/ecdh.h125
-rw-r--r--thirdparties/mac/include/openssl/ecdsa.h260
-rw-r--r--thirdparties/mac/include/openssl/engine.h842
-rw-r--r--thirdparties/mac/include/openssl/err.h386
-rw-r--r--thirdparties/mac/include/openssl/evp.h1402
-rw-r--r--thirdparties/mac/include/openssl/hmac.h110
-rw-r--r--thirdparties/mac/include/openssl/idea.h103
-rw-r--r--thirdparties/mac/include/openssl/krb5_asn.h256
-rw-r--r--thirdparties/mac/include/openssl/kssl.h183
-rw-r--r--thirdparties/mac/include/openssl/lhash.h241
-rw-r--r--thirdparties/mac/include/openssl/md4.h120
-rw-r--r--thirdparties/mac/include/openssl/md5.h120
-rw-r--r--thirdparties/mac/include/openssl/mdc2.h98
-rw-r--r--thirdparties/mac/include/openssl/modes.h135
-rw-r--r--thirdparties/mac/include/openssl/obj_mac.h4032
-rw-r--r--thirdparties/mac/include/openssl/objects.h1138
-rw-r--r--thirdparties/mac/include/openssl/ocsp.h623
-rw-r--r--thirdparties/mac/include/openssl/opensslconf.h238
-rw-r--r--thirdparties/mac/include/openssl/opensslv.h89
-rw-r--r--thirdparties/mac/include/openssl/ossl_typ.h202
-rw-r--r--thirdparties/mac/include/openssl/pem.h641
-rw-r--r--thirdparties/mac/include/openssl/pem2.h70
-rw-r--r--thirdparties/mac/include/openssl/pkcs12.h331
-rw-r--r--thirdparties/mac/include/openssl/pkcs7.h499
-rw-r--r--thirdparties/mac/include/openssl/pqueue.h94
-rw-r--r--thirdparties/mac/include/openssl/rand.h149
-rw-r--r--thirdparties/mac/include/openssl/rc2.h103
-rw-r--r--thirdparties/mac/include/openssl/rc4.h90
-rw-r--r--thirdparties/mac/include/openssl/ripemd.h107
-rw-r--r--thirdparties/mac/include/openssl/rsa.h582
-rw-r--r--thirdparties/mac/include/openssl/safestack.h2663
-rw-r--r--thirdparties/mac/include/openssl/seed.h139
-rw-r--r--thirdparties/mac/include/openssl/sha.h214
-rw-r--r--thirdparties/mac/include/openssl/ssl.h2573
-rw-r--r--thirdparties/mac/include/openssl/ssl2.h272
-rw-r--r--thirdparties/mac/include/openssl/ssl23.h83
-rw-r--r--thirdparties/mac/include/openssl/ssl3.h678
-rw-r--r--thirdparties/mac/include/openssl/stack.h108
-rw-r--r--thirdparties/mac/include/openssl/symhacks.h477
-rw-r--r--thirdparties/mac/include/openssl/tls1.h735
-rw-r--r--thirdparties/mac/include/openssl/ts.h858
-rw-r--r--thirdparties/mac/include/openssl/txt_db.h112
-rw-r--r--thirdparties/mac/include/openssl/ui.h383
-rw-r--r--thirdparties/mac/include/openssl/ui_compat.h83
-rw-r--r--thirdparties/mac/include/openssl/whrlpool.h41
-rw-r--r--thirdparties/mac/include/openssl/x509.h1297
-rw-r--r--thirdparties/mac/include/openssl/x509_vfy.h567
-rw-r--r--thirdparties/mac/include/openssl/x509v3.h1007
-rw-r--r--thirdparties/mac/include/speex/speex.h424
-rw-r--r--thirdparties/mac/include/speex/speex_bits.h174
-rw-r--r--thirdparties/mac/include/speex/speex_buffer.h68
-rw-r--r--thirdparties/mac/include/speex/speex_callbacks.h134
-rw-r--r--thirdparties/mac/include/speex/speex_config_types.h11
-rw-r--r--thirdparties/mac/include/speex/speex_echo.h170
-rw-r--r--thirdparties/mac/include/speex/speex_header.h94
-rw-r--r--thirdparties/mac/include/speex/speex_jitter.h197
-rw-r--r--thirdparties/mac/include/speex/speex_preprocess.h219
-rw-r--r--thirdparties/mac/include/speex/speex_resampler.h340
-rw-r--r--thirdparties/mac/include/speex/speex_stereo.h91
-rw-r--r--thirdparties/mac/include/speex/speex_types.h126
-rw-r--r--thirdparties/mac/include/srtp/aes.h90
-rw-r--r--thirdparties/mac/include/srtp/aes_cbc.h52
-rw-r--r--thirdparties/mac/include/srtp/aes_gcm_ossl.h63
-rw-r--r--thirdparties/mac/include/srtp/aes_icm.h57
-rw-r--r--thirdparties/mac/include/srtp/aes_icm_ossl.h73
-rw-r--r--thirdparties/mac/include/srtp/alloc.h57
-rw-r--r--thirdparties/mac/include/srtp/auth.h171
-rw-r--r--thirdparties/mac/include/srtp/cipher.h254
-rw-r--r--thirdparties/mac/include/srtp/config.h177
-rw-r--r--thirdparties/mac/include/srtp/crypto.h43
-rw-r--r--thirdparties/mac/include/srtp/crypto_kernel.h281
-rw-r--r--thirdparties/mac/include/srtp/crypto_math.h239
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-rw-r--r--thirdparties/mac/include/srtp/cryptoalg.h133
-rw-r--r--thirdparties/mac/include/srtp/datatypes.h512
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-rw-r--r--thirdparties/mac/include/srtp/gf2_8.h79
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-rw-r--r--thirdparties/mac/include/srtp/integers.h147
-rw-r--r--thirdparties/mac/include/srtp/kernel_compat.h84
-rw-r--r--thirdparties/mac/include/srtp/key.h82
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-rw-r--r--thirdparties/mac/include/srtp/osx-x264.sh44
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-rw-r--r--thirdparties/mac/include/srtp/srtp.h1199
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-rw-r--r--thirdparties/mac/include/srtp/ut_sim.h80
-rw-r--r--thirdparties/mac/include/srtp/xfm.h139
-rw-r--r--thirdparties/mac/include/vpx/vp8.h123
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-rw-r--r--thirdparties/mac/include/vpx/vpx_codec.h554
-rw-r--r--thirdparties/mac/include/vpx/vpx_codec_impl_bottom.h19
-rw-r--r--thirdparties/mac/include/vpx/vpx_codec_impl_top.h19
-rw-r--r--thirdparties/mac/include/vpx/vpx_decoder.h329
-rw-r--r--thirdparties/mac/include/vpx/vpx_decoder_compat.h587
-rw-r--r--thirdparties/mac/include/vpx/vpx_encoder.h931
-rw-r--r--thirdparties/mac/include/vpx/vpx_image.h243
-rw-r--r--thirdparties/mac/include/vpx/vpx_integer.h54
-rw-r--r--thirdparties/mac/include/webrtc/echo_cancellation.h256
-rw-r--r--thirdparties/mac/include/webrtc/noise_suppression.h123
-rw-r--r--thirdparties/mac/include/webrtc/noise_suppression_x.h109
-rw-r--r--thirdparties/mac/include/webrtc/typedefs.h112
-rw-r--r--thirdparties/mac/lib/i386/libaudio_processing.abin0 -> 1929304 bytes
-rw-r--r--thirdparties/mac/lib/i386/libaudio_processing_sse2.abin0 -> 33312 bytes
-rw-r--r--thirdparties/mac/lib/i386/libavcodec.abin0 -> 2928056 bytes
-rw-r--r--thirdparties/mac/lib/i386/libavdevice.abin0 -> 2368 bytes
-rw-r--r--thirdparties/mac/lib/i386/libavfilter.abin0 -> 112016 bytes
-rw-r--r--thirdparties/mac/lib/i386/libavformat.abin0 -> 167968 bytes
-rw-r--r--thirdparties/mac/lib/i386/libavutil.abin0 -> 205952 bytes
-rw-r--r--thirdparties/mac/lib/i386/libcommon_audio.abin0 -> 439800 bytes
-rw-r--r--thirdparties/mac/lib/i386/libcommon_audio_sse2.abin0 -> 38952 bytes
-rw-r--r--thirdparties/mac/lib/i386/libcrypto.abin0 -> 2438256 bytes
-rw-r--r--thirdparties/mac/lib/i386/libspeex.abin0 -> 143424 bytes
-rw-r--r--thirdparties/mac/lib/i386/libspeexdsp.abin0 -> 83616 bytes
-rw-r--r--thirdparties/mac/lib/i386/libsrtp.abin0 -> 143608 bytes
-rw-r--r--thirdparties/mac/lib/i386/libssl.abin0 -> 443480 bytes
-rw-r--r--thirdparties/mac/lib/i386/libswresample.abin0 -> 112944 bytes
-rw-r--r--thirdparties/mac/lib/i386/libswscale.abin0 -> 441992 bytes
-rw-r--r--thirdparties/mac/lib/i386/libsystem_wrappers.abin0 -> 1642680 bytes
-rw-r--r--thirdparties/mac/lib/i386/libvpx.abin0 -> 775848 bytes
-rw-r--r--thirdparties/mac/lib/i386/libx264.abin0 -> 1250800 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libavcodec.abin0 -> 2638728 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libavcore.abin0 -> 22328 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libavdevice.abin0 -> 2552 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libavfilter.abin0 -> 130104 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libavformat.abin0 -> 180368 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libavutil.abin0 -> 214536 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libcrypto.abin0 -> 2729016 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libpostproc.abin0 -> 85672 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libspeex.abin0 -> 204944 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libspeexdsp.abin0 -> 145688 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libsrtp.abin0 -> 157600 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libssl.abin0 -> 467464 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libswresample.abin0 -> 72344 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libswscale.abin0 -> 271680 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libvpx.abin0 -> 580216 bytes
-rw-r--r--thirdparties/mac/lib/powerpc/libx264.abin0 -> 1157240 bytes
-rw-r--r--thirdparties/mac/lib/universal/libvpx.abin0 -> 2252076 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libaudio_processing.abin0 -> 2073008 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libaudio_processing_sse2.abin0 -> 38072 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libavcodec.abin0 -> 3165656 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libavdevice.abin0 -> 3048 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libavfilter.abin0 -> 140328 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libavformat.abin0 -> 194736 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libavutil.abin0 -> 261256 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libcommon_audio.abin0 -> 569056 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libcommon_audio_sse2.abin0 -> 45760 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libcrypto.abin0 -> 3449960 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libpostproc.abin0 -> 125744 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libspeex.abin0 -> 153536 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libspeexdsp.abin0 -> 90832 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libsrtp.abin0 -> 166480 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libssl.abin0 -> 584200 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libswresample.abin0 -> 133464 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libswscale.abin0 -> 479640 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libsystem_wrappers.abin0 -> 1967880 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libvpx.abin0 -> 895728 bytes
-rw-r--r--thirdparties/mac/lib/x86_64/libx264.abin0 -> 1387968 bytes
339 files changed, 67425 insertions, 0 deletions
diff --git a/thirdparties/mac/include/libavcodec/avcodec.h b/thirdparties/mac/include/libavcodec/avcodec.h
new file mode 100644
index 0000000..c4db4d7
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/avcodec.h
@@ -0,0 +1,5108 @@
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVCODEC_H
+#define AVCODEC_AVCODEC_H
+
+/**
+ * @file
+ * external API header
+ */
+
+#include <errno.h>
+#include "libavutil/samplefmt.h"
+#include "libavutil/avutil.h"
+#include "libavutil/cpu.h"
+#include "libavutil/channel_layout.h"
+#include "libavutil/dict.h"
+#include "libavutil/log.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+
+#include "libavcodec/version.h"
+/**
+ * @defgroup libavc Encoding/Decoding Library
+ * @{
+ *
+ * @defgroup lavc_decoding Decoding
+ * @{
+ * @}
+ *
+ * @defgroup lavc_encoding Encoding
+ * @{
+ * @}
+ *
+ * @defgroup lavc_codec Codecs
+ * @{
+ * @defgroup lavc_codec_native Native Codecs
+ * @{
+ * @}
+ * @defgroup lavc_codec_wrappers External library wrappers
+ * @{
+ * @}
+ * @defgroup lavc_codec_hwaccel Hardware Accelerators bridge
+ * @{
+ * @}
+ * @}
+ * @defgroup lavc_internal Internal
+ * @{
+ * @}
+ * @}
+ *
+ */
+
+/**
+ * @defgroup lavc_core Core functions/structures.
+ * @ingroup libavc
+ *
+ * Basic definitions, functions for querying libavcodec capabilities,
+ * allocating core structures, etc.
+ * @{
+ */
+
+
+/**
+ * Identify the syntax and semantics of the bitstream.
+ * The principle is roughly:
+ * Two decoders with the same ID can decode the same streams.
+ * Two encoders with the same ID can encode compatible streams.
+ * There may be slight deviations from the principle due to implementation
+ * details.
+ *
+ * If you add a codec ID to this list, add it so that
+ * 1. no value of a existing codec ID changes (that would break ABI),
+ * 2. Give it a value which when taken as ASCII is recognized uniquely by a human as this specific codec.
+ * This ensures that 2 forks can independently add AVCodecIDs without producing conflicts.
+ *
+ * After adding new codec IDs, do not forget to add an entry to the codec
+ * descriptor list and bump libavcodec minor version.
+ */
+enum AVCodecID {
+ AV_CODEC_ID_NONE,
+
+ /* video codecs */
+ AV_CODEC_ID_MPEG1VIDEO,
+ AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
+ AV_CODEC_ID_MPEG2VIDEO_XVMC,
+ AV_CODEC_ID_H261,
+ AV_CODEC_ID_H263,
+ AV_CODEC_ID_RV10,
+ AV_CODEC_ID_RV20,
+ AV_CODEC_ID_MJPEG,
+ AV_CODEC_ID_MJPEGB,
+ AV_CODEC_ID_LJPEG,
+ AV_CODEC_ID_SP5X,
+ AV_CODEC_ID_JPEGLS,
+ AV_CODEC_ID_MPEG4,
+ AV_CODEC_ID_RAWVIDEO,
+ AV_CODEC_ID_MSMPEG4V1,
+ AV_CODEC_ID_MSMPEG4V2,
+ AV_CODEC_ID_MSMPEG4V3,
+ AV_CODEC_ID_WMV1,
+ AV_CODEC_ID_WMV2,
+ AV_CODEC_ID_H263P,
+ AV_CODEC_ID_H263I,
+ AV_CODEC_ID_FLV1,
+ AV_CODEC_ID_SVQ1,
+ AV_CODEC_ID_SVQ3,
+ AV_CODEC_ID_DVVIDEO,
+ AV_CODEC_ID_HUFFYUV,
+ AV_CODEC_ID_CYUV,
+ AV_CODEC_ID_H264,
+ AV_CODEC_ID_INDEO3,
+ AV_CODEC_ID_VP3,
+ AV_CODEC_ID_THEORA,
+ AV_CODEC_ID_ASV1,
+ AV_CODEC_ID_ASV2,
+ AV_CODEC_ID_FFV1,
+ AV_CODEC_ID_4XM,
+ AV_CODEC_ID_VCR1,
+ AV_CODEC_ID_CLJR,
+ AV_CODEC_ID_MDEC,
+ AV_CODEC_ID_ROQ,
+ AV_CODEC_ID_INTERPLAY_VIDEO,
+ AV_CODEC_ID_XAN_WC3,
+ AV_CODEC_ID_XAN_WC4,
+ AV_CODEC_ID_RPZA,
+ AV_CODEC_ID_CINEPAK,
+ AV_CODEC_ID_WS_VQA,
+ AV_CODEC_ID_MSRLE,
+ AV_CODEC_ID_MSVIDEO1,
+ AV_CODEC_ID_IDCIN,
+ AV_CODEC_ID_8BPS,
+ AV_CODEC_ID_SMC,
+ AV_CODEC_ID_FLIC,
+ AV_CODEC_ID_TRUEMOTION1,
+ AV_CODEC_ID_VMDVIDEO,
+ AV_CODEC_ID_MSZH,
+ AV_CODEC_ID_ZLIB,
+ AV_CODEC_ID_QTRLE,
+ AV_CODEC_ID_SNOW,
+ AV_CODEC_ID_TSCC,
+ AV_CODEC_ID_ULTI,
+ AV_CODEC_ID_QDRAW,
+ AV_CODEC_ID_VIXL,
+ AV_CODEC_ID_QPEG,
+ AV_CODEC_ID_PNG,
+ AV_CODEC_ID_PPM,
+ AV_CODEC_ID_PBM,
+ AV_CODEC_ID_PGM,
+ AV_CODEC_ID_PGMYUV,
+ AV_CODEC_ID_PAM,
+ AV_CODEC_ID_FFVHUFF,
+ AV_CODEC_ID_RV30,
+ AV_CODEC_ID_RV40,
+ AV_CODEC_ID_VC1,
+ AV_CODEC_ID_WMV3,
+ AV_CODEC_ID_LOCO,
+ AV_CODEC_ID_WNV1,
+ AV_CODEC_ID_AASC,
+ AV_CODEC_ID_INDEO2,
+ AV_CODEC_ID_FRAPS,
+ AV_CODEC_ID_TRUEMOTION2,
+ AV_CODEC_ID_BMP,
+ AV_CODEC_ID_CSCD,
+ AV_CODEC_ID_MMVIDEO,
+ AV_CODEC_ID_ZMBV,
+ AV_CODEC_ID_AVS,
+ AV_CODEC_ID_SMACKVIDEO,
+ AV_CODEC_ID_NUV,
+ AV_CODEC_ID_KMVC,
+ AV_CODEC_ID_FLASHSV,
+ AV_CODEC_ID_CAVS,
+ AV_CODEC_ID_JPEG2000,
+ AV_CODEC_ID_VMNC,
+ AV_CODEC_ID_VP5,
+ AV_CODEC_ID_VP6,
+ AV_CODEC_ID_VP6F,
+ AV_CODEC_ID_TARGA,
+ AV_CODEC_ID_DSICINVIDEO,
+ AV_CODEC_ID_TIERTEXSEQVIDEO,
+ AV_CODEC_ID_TIFF,
+ AV_CODEC_ID_GIF,
+ AV_CODEC_ID_DXA,
+ AV_CODEC_ID_DNXHD,
+ AV_CODEC_ID_THP,
+ AV_CODEC_ID_SGI,
+ AV_CODEC_ID_C93,
+ AV_CODEC_ID_BETHSOFTVID,
+ AV_CODEC_ID_PTX,
+ AV_CODEC_ID_TXD,
+ AV_CODEC_ID_VP6A,
+ AV_CODEC_ID_AMV,
+ AV_CODEC_ID_VB,
+ AV_CODEC_ID_PCX,
+ AV_CODEC_ID_SUNRAST,
+ AV_CODEC_ID_INDEO4,
+ AV_CODEC_ID_INDEO5,
+ AV_CODEC_ID_MIMIC,
+ AV_CODEC_ID_RL2,
+ AV_CODEC_ID_ESCAPE124,
+ AV_CODEC_ID_DIRAC,
+ AV_CODEC_ID_BFI,
+ AV_CODEC_ID_CMV,
+ AV_CODEC_ID_MOTIONPIXELS,
+ AV_CODEC_ID_TGV,
+ AV_CODEC_ID_TGQ,
+ AV_CODEC_ID_TQI,
+ AV_CODEC_ID_AURA,
+ AV_CODEC_ID_AURA2,
+ AV_CODEC_ID_V210X,
+ AV_CODEC_ID_TMV,
+ AV_CODEC_ID_V210,
+ AV_CODEC_ID_DPX,
+ AV_CODEC_ID_MAD,
+ AV_CODEC_ID_FRWU,
+ AV_CODEC_ID_FLASHSV2,
+ AV_CODEC_ID_CDGRAPHICS,
+ AV_CODEC_ID_R210,
+ AV_CODEC_ID_ANM,
+ AV_CODEC_ID_BINKVIDEO,
+ AV_CODEC_ID_IFF_ILBM,
+ AV_CODEC_ID_IFF_BYTERUN1,
+ AV_CODEC_ID_KGV1,
+ AV_CODEC_ID_YOP,
+ AV_CODEC_ID_VP8,
+ AV_CODEC_ID_PICTOR,
+ AV_CODEC_ID_ANSI,
+ AV_CODEC_ID_A64_MULTI,
+ AV_CODEC_ID_A64_MULTI5,
+ AV_CODEC_ID_R10K,
+ AV_CODEC_ID_MXPEG,
+ AV_CODEC_ID_LAGARITH,
+ AV_CODEC_ID_PRORES,
+ AV_CODEC_ID_JV,
+ AV_CODEC_ID_DFA,
+ AV_CODEC_ID_WMV3IMAGE,
+ AV_CODEC_ID_VC1IMAGE,
+ AV_CODEC_ID_UTVIDEO,
+ AV_CODEC_ID_BMV_VIDEO,
+ AV_CODEC_ID_VBLE,
+ AV_CODEC_ID_DXTORY,
+ AV_CODEC_ID_V410,
+ AV_CODEC_ID_XWD,
+ AV_CODEC_ID_CDXL,
+ AV_CODEC_ID_XBM,
+ AV_CODEC_ID_ZEROCODEC,
+ AV_CODEC_ID_MSS1,
+ AV_CODEC_ID_MSA1,
+ AV_CODEC_ID_TSCC2,
+ AV_CODEC_ID_MTS2,
+ AV_CODEC_ID_CLLC,
+ AV_CODEC_ID_MSS2,
+ AV_CODEC_ID_VP9,
+ AV_CODEC_ID_BRENDER_PIX= MKBETAG('B','P','I','X'),
+ AV_CODEC_ID_Y41P = MKBETAG('Y','4','1','P'),
+ AV_CODEC_ID_ESCAPE130 = MKBETAG('E','1','3','0'),
+ AV_CODEC_ID_EXR = MKBETAG('0','E','X','R'),
+ AV_CODEC_ID_AVRP = MKBETAG('A','V','R','P'),
+
+ AV_CODEC_ID_012V = MKBETAG('0','1','2','V'),
+ AV_CODEC_ID_G2M = MKBETAG( 0 ,'G','2','M'),
+ AV_CODEC_ID_AVUI = MKBETAG('A','V','U','I'),
+ AV_CODEC_ID_AYUV = MKBETAG('A','Y','U','V'),
+ AV_CODEC_ID_TARGA_Y216 = MKBETAG('T','2','1','6'),
+ AV_CODEC_ID_V308 = MKBETAG('V','3','0','8'),
+ AV_CODEC_ID_V408 = MKBETAG('V','4','0','8'),
+ AV_CODEC_ID_YUV4 = MKBETAG('Y','U','V','4'),
+ AV_CODEC_ID_SANM = MKBETAG('S','A','N','M'),
+ AV_CODEC_ID_PAF_VIDEO = MKBETAG('P','A','F','V'),
+ AV_CODEC_ID_AVRN = MKBETAG('A','V','R','n'),
+ AV_CODEC_ID_CPIA = MKBETAG('C','P','I','A'),
+ AV_CODEC_ID_XFACE = MKBETAG('X','F','A','C'),
+ AV_CODEC_ID_SGIRLE = MKBETAG('S','G','I','R'),
+ AV_CODEC_ID_MVC1 = MKBETAG('M','V','C','1'),
+ AV_CODEC_ID_MVC2 = MKBETAG('M','V','C','2'),
+
+ /* various PCM "codecs" */
+ AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
+ AV_CODEC_ID_PCM_S16LE = 0x10000,
+ AV_CODEC_ID_PCM_S16BE,
+ AV_CODEC_ID_PCM_U16LE,
+ AV_CODEC_ID_PCM_U16BE,
+ AV_CODEC_ID_PCM_S8,
+ AV_CODEC_ID_PCM_U8,
+ AV_CODEC_ID_PCM_MULAW,
+ AV_CODEC_ID_PCM_ALAW,
+ AV_CODEC_ID_PCM_S32LE,
+ AV_CODEC_ID_PCM_S32BE,
+ AV_CODEC_ID_PCM_U32LE,
+ AV_CODEC_ID_PCM_U32BE,
+ AV_CODEC_ID_PCM_S24LE,
+ AV_CODEC_ID_PCM_S24BE,
+ AV_CODEC_ID_PCM_U24LE,
+ AV_CODEC_ID_PCM_U24BE,
+ AV_CODEC_ID_PCM_S24DAUD,
+ AV_CODEC_ID_PCM_ZORK,
+ AV_CODEC_ID_PCM_S16LE_PLANAR,
+ AV_CODEC_ID_PCM_DVD,
+ AV_CODEC_ID_PCM_F32BE,
+ AV_CODEC_ID_PCM_F32LE,
+ AV_CODEC_ID_PCM_F64BE,
+ AV_CODEC_ID_PCM_F64LE,
+ AV_CODEC_ID_PCM_BLURAY,
+ AV_CODEC_ID_PCM_LXF,
+ AV_CODEC_ID_S302M,
+ AV_CODEC_ID_PCM_S8_PLANAR,
+ AV_CODEC_ID_PCM_S24LE_PLANAR = MKBETAG(24,'P','S','P'),
+ AV_CODEC_ID_PCM_S32LE_PLANAR = MKBETAG(32,'P','S','P'),
+ AV_CODEC_ID_PCM_S16BE_PLANAR = MKBETAG('P','S','P',16),
+
+ /* various ADPCM codecs */
+ AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
+ AV_CODEC_ID_ADPCM_IMA_WAV,
+ AV_CODEC_ID_ADPCM_IMA_DK3,
+ AV_CODEC_ID_ADPCM_IMA_DK4,
+ AV_CODEC_ID_ADPCM_IMA_WS,
+ AV_CODEC_ID_ADPCM_IMA_SMJPEG,
+ AV_CODEC_ID_ADPCM_MS,
+ AV_CODEC_ID_ADPCM_4XM,
+ AV_CODEC_ID_ADPCM_XA,
+ AV_CODEC_ID_ADPCM_ADX,
+ AV_CODEC_ID_ADPCM_EA,
+ AV_CODEC_ID_ADPCM_G726,
+ AV_CODEC_ID_ADPCM_CT,
+ AV_CODEC_ID_ADPCM_SWF,
+ AV_CODEC_ID_ADPCM_YAMAHA,
+ AV_CODEC_ID_ADPCM_SBPRO_4,
+ AV_CODEC_ID_ADPCM_SBPRO_3,
+ AV_CODEC_ID_ADPCM_SBPRO_2,
+ AV_CODEC_ID_ADPCM_THP,
+ AV_CODEC_ID_ADPCM_IMA_AMV,
+ AV_CODEC_ID_ADPCM_EA_R1,
+ AV_CODEC_ID_ADPCM_EA_R3,
+ AV_CODEC_ID_ADPCM_EA_R2,
+ AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
+ AV_CODEC_ID_ADPCM_IMA_EA_EACS,
+ AV_CODEC_ID_ADPCM_EA_XAS,
+ AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
+ AV_CODEC_ID_ADPCM_IMA_ISS,
+ AV_CODEC_ID_ADPCM_G722,
+ AV_CODEC_ID_ADPCM_IMA_APC,
+ AV_CODEC_ID_VIMA = MKBETAG('V','I','M','A'),
+ AV_CODEC_ID_ADPCM_AFC = MKBETAG('A','F','C',' '),
+ AV_CODEC_ID_ADPCM_IMA_OKI = MKBETAG('O','K','I',' '),
+
+ /* AMR */
+ AV_CODEC_ID_AMR_NB = 0x12000,
+ AV_CODEC_ID_AMR_WB,
+
+ /* RealAudio codecs*/
+ AV_CODEC_ID_RA_144 = 0x13000,
+ AV_CODEC_ID_RA_288,
+
+ /* various DPCM codecs */
+ AV_CODEC_ID_ROQ_DPCM = 0x14000,
+ AV_CODEC_ID_INTERPLAY_DPCM,
+ AV_CODEC_ID_XAN_DPCM,
+ AV_CODEC_ID_SOL_DPCM,
+
+ /* audio codecs */
+ AV_CODEC_ID_MP2 = 0x15000,
+ AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
+ AV_CODEC_ID_AAC,
+ AV_CODEC_ID_AC3,
+ AV_CODEC_ID_DTS,
+ AV_CODEC_ID_VORBIS,
+ AV_CODEC_ID_DVAUDIO,
+ AV_CODEC_ID_WMAV1,
+ AV_CODEC_ID_WMAV2,
+ AV_CODEC_ID_MACE3,
+ AV_CODEC_ID_MACE6,
+ AV_CODEC_ID_VMDAUDIO,
+ AV_CODEC_ID_FLAC,
+ AV_CODEC_ID_MP3ADU,
+ AV_CODEC_ID_MP3ON4,
+ AV_CODEC_ID_SHORTEN,
+ AV_CODEC_ID_ALAC,
+ AV_CODEC_ID_WESTWOOD_SND1,
+ AV_CODEC_ID_GSM, ///< as in Berlin toast format
+ AV_CODEC_ID_QDM2,
+ AV_CODEC_ID_COOK,
+ AV_CODEC_ID_TRUESPEECH,
+ AV_CODEC_ID_TTA,
+ AV_CODEC_ID_SMACKAUDIO,
+ AV_CODEC_ID_QCELP,
+ AV_CODEC_ID_WAVPACK,
+ AV_CODEC_ID_DSICINAUDIO,
+ AV_CODEC_ID_IMC,
+ AV_CODEC_ID_MUSEPACK7,
+ AV_CODEC_ID_MLP,
+ AV_CODEC_ID_GSM_MS, /* as found in WAV */
+ AV_CODEC_ID_ATRAC3,
+ AV_CODEC_ID_VOXWARE,
+ AV_CODEC_ID_APE,
+ AV_CODEC_ID_NELLYMOSER,
+ AV_CODEC_ID_MUSEPACK8,
+ AV_CODEC_ID_SPEEX,
+ AV_CODEC_ID_WMAVOICE,
+ AV_CODEC_ID_WMAPRO,
+ AV_CODEC_ID_WMALOSSLESS,
+ AV_CODEC_ID_ATRAC3P,
+ AV_CODEC_ID_EAC3,
+ AV_CODEC_ID_SIPR,
+ AV_CODEC_ID_MP1,
+ AV_CODEC_ID_TWINVQ,
+ AV_CODEC_ID_TRUEHD,
+ AV_CODEC_ID_MP4ALS,
+ AV_CODEC_ID_ATRAC1,
+ AV_CODEC_ID_BINKAUDIO_RDFT,
+ AV_CODEC_ID_BINKAUDIO_DCT,
+ AV_CODEC_ID_AAC_LATM,
+ AV_CODEC_ID_QDMC,
+ AV_CODEC_ID_CELT,
+ AV_CODEC_ID_G723_1,
+ AV_CODEC_ID_G729,
+ AV_CODEC_ID_8SVX_EXP,
+ AV_CODEC_ID_8SVX_FIB,
+ AV_CODEC_ID_BMV_AUDIO,
+ AV_CODEC_ID_RALF,
+ AV_CODEC_ID_IAC,
+ AV_CODEC_ID_ILBC,
+ AV_CODEC_ID_OPUS_DEPRECATED,
+ AV_CODEC_ID_COMFORT_NOISE,
+ AV_CODEC_ID_TAK_DEPRECATED,
+ AV_CODEC_ID_FFWAVESYNTH = MKBETAG('F','F','W','S'),
+#if LIBAVCODEC_VERSION_MAJOR <= 54
+ AV_CODEC_ID_8SVX_RAW = MKBETAG('8','S','V','X'),
+#endif
+ AV_CODEC_ID_SONIC = MKBETAG('S','O','N','C'),
+ AV_CODEC_ID_SONIC_LS = MKBETAG('S','O','N','L'),
+ AV_CODEC_ID_PAF_AUDIO = MKBETAG('P','A','F','A'),
+ AV_CODEC_ID_OPUS = MKBETAG('O','P','U','S'),
+ AV_CODEC_ID_TAK = MKBETAG('t','B','a','K'),
+ AV_CODEC_ID_EVRC = MKBETAG('s','e','v','c'),
+ AV_CODEC_ID_SMV = MKBETAG('s','s','m','v'),
+
+ /* subtitle codecs */
+ AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
+ AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
+ AV_CODEC_ID_DVB_SUBTITLE,
+ AV_CODEC_ID_TEXT, ///< raw UTF-8 text
+ AV_CODEC_ID_XSUB,
+ AV_CODEC_ID_SSA,
+ AV_CODEC_ID_MOV_TEXT,
+ AV_CODEC_ID_HDMV_PGS_SUBTITLE,
+ AV_CODEC_ID_DVB_TELETEXT,
+ AV_CODEC_ID_SRT,
+ AV_CODEC_ID_MICRODVD = MKBETAG('m','D','V','D'),
+ AV_CODEC_ID_EIA_608 = MKBETAG('c','6','0','8'),
+ AV_CODEC_ID_JACOSUB = MKBETAG('J','S','U','B'),
+ AV_CODEC_ID_SAMI = MKBETAG('S','A','M','I'),
+ AV_CODEC_ID_REALTEXT = MKBETAG('R','T','X','T'),
+ AV_CODEC_ID_SUBVIEWER1 = MKBETAG('S','b','V','1'),
+ AV_CODEC_ID_SUBVIEWER = MKBETAG('S','u','b','V'),
+ AV_CODEC_ID_SUBRIP = MKBETAG('S','R','i','p'),
+ AV_CODEC_ID_WEBVTT = MKBETAG('W','V','T','T'),
+ AV_CODEC_ID_MPL2 = MKBETAG('M','P','L','2'),
+ AV_CODEC_ID_VPLAYER = MKBETAG('V','P','l','r'),
+ AV_CODEC_ID_PJS = MKBETAG('P','h','J','S'),
+
+ /* other specific kind of codecs (generally used for attachments) */
+ AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
+ AV_CODEC_ID_TTF = 0x18000,
+ AV_CODEC_ID_BINTEXT = MKBETAG('B','T','X','T'),
+ AV_CODEC_ID_XBIN = MKBETAG('X','B','I','N'),
+ AV_CODEC_ID_IDF = MKBETAG( 0 ,'I','D','F'),
+ AV_CODEC_ID_OTF = MKBETAG( 0 ,'O','T','F'),
+ AV_CODEC_ID_SMPTE_KLV = MKBETAG('K','L','V','A'),
+
+ AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it
+
+ AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
+ * stream (only used by libavformat) */
+ AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
+ * stream (only used by libavformat) */
+ AV_CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information.
+
+#if FF_API_CODEC_ID
+#include "old_codec_ids.h"
+#endif
+};
+
+#if FF_API_CODEC_ID
+#define CodecID AVCodecID
+#endif
+
+/**
+ * This struct describes the properties of a single codec described by an
+ * AVCodecID.
+ * @see avcodec_get_descriptor()
+ */
+typedef struct AVCodecDescriptor {
+ enum AVCodecID id;
+ enum AVMediaType type;
+ /**
+ * Name of the codec described by this descriptor. It is non-empty and
+ * unique for each codec descriptor. It should contain alphanumeric
+ * characters and '_' only.
+ */
+ const char *name;
+ /**
+ * A more descriptive name for this codec. May be NULL.
+ */
+ const char *long_name;
+ /**
+ * Codec properties, a combination of AV_CODEC_PROP_* flags.
+ */
+ int props;
+} AVCodecDescriptor;
+
+/**
+ * Codec uses only intra compression.
+ * Video codecs only.
+ */
+#define AV_CODEC_PROP_INTRA_ONLY (1 << 0)
+/**
+ * Codec supports lossy compression. Audio and video codecs only.
+ * @note a codec may support both lossy and lossless
+ * compression modes
+ */
+#define AV_CODEC_PROP_LOSSY (1 << 1)
+/**
+ * Codec supports lossless compression. Audio and video codecs only.
+ */
+#define AV_CODEC_PROP_LOSSLESS (1 << 2)
+/**
+ * Subtitle codec is bitmap based
+ */
+#define AV_CODEC_PROP_BITMAP_SUB (1 << 16)
+
+#if FF_API_OLD_DECODE_AUDIO
+/* in bytes */
+#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
+#endif
+
+/**
+ * @ingroup lavc_decoding
+ * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
+ * This is mainly needed because some optimized bitstream readers read
+ * 32 or 64 bit at once and could read over the end.<br>
+ * Note: If the first 23 bits of the additional bytes are not 0, then damaged
+ * MPEG bitstreams could cause overread and segfault.
+ */
+#define FF_INPUT_BUFFER_PADDING_SIZE 16
+
+/**
+ * @ingroup lavc_encoding
+ * minimum encoding buffer size
+ * Used to avoid some checks during header writing.
+ */
+#define FF_MIN_BUFFER_SIZE 16384
+
+
+/**
+ * @ingroup lavc_encoding
+ * motion estimation type.
+ */
+enum Motion_Est_ID {
+ ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed
+ ME_FULL,
+ ME_LOG,
+ ME_PHODS,
+ ME_EPZS, ///< enhanced predictive zonal search
+ ME_X1, ///< reserved for experiments
+ ME_HEX, ///< hexagon based search
+ ME_UMH, ///< uneven multi-hexagon search
+ ME_ITER, ///< iterative search
+ ME_TESA, ///< transformed exhaustive search algorithm
+};
+
+/**
+ * @ingroup lavc_decoding
+ */
+enum AVDiscard{
+ /* We leave some space between them for extensions (drop some
+ * keyframes for intra-only or drop just some bidir frames). */
+ AVDISCARD_NONE =-16, ///< discard nothing
+ AVDISCARD_DEFAULT = 0, ///< discard useless packets like 0 size packets in avi
+ AVDISCARD_NONREF = 8, ///< discard all non reference
+ AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
+ AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
+ AVDISCARD_ALL = 48, ///< discard all
+};
+
+enum AVColorPrimaries{
+ AVCOL_PRI_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 / SMPTE RP177 Annex B
+ AVCOL_PRI_UNSPECIFIED = 2,
+ AVCOL_PRI_BT470M = 4,
+ AVCOL_PRI_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
+ AVCOL_PRI_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC
+ AVCOL_PRI_SMPTE240M = 7, ///< functionally identical to above
+ AVCOL_PRI_FILM = 8,
+ AVCOL_PRI_NB , ///< Not part of ABI
+};
+
+enum AVColorTransferCharacteristic{
+ AVCOL_TRC_BT709 = 1, ///< also ITU-R BT1361
+ AVCOL_TRC_UNSPECIFIED = 2,
+ AVCOL_TRC_GAMMA22 = 4, ///< also ITU-R BT470M / ITU-R BT1700 625 PAL & SECAM
+ AVCOL_TRC_GAMMA28 = 5, ///< also ITU-R BT470BG
+ AVCOL_TRC_SMPTE240M = 7,
+ AVCOL_TRC_NB , ///< Not part of ABI
+};
+
+enum AVColorSpace{
+ AVCOL_SPC_RGB = 0,
+ AVCOL_SPC_BT709 = 1, ///< also ITU-R BT1361 / IEC 61966-2-4 xvYCC709 / SMPTE RP177 Annex B
+ AVCOL_SPC_UNSPECIFIED = 2,
+ AVCOL_SPC_FCC = 4,
+ AVCOL_SPC_BT470BG = 5, ///< also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601
+ AVCOL_SPC_SMPTE170M = 6, ///< also ITU-R BT601-6 525 / ITU-R BT1358 525 / ITU-R BT1700 NTSC / functionally identical to above
+ AVCOL_SPC_SMPTE240M = 7,
+ AVCOL_SPC_YCOCG = 8, ///< Used by Dirac / VC-2 and H.264 FRext, see ITU-T SG16
+ AVCOL_SPC_NB , ///< Not part of ABI
+};
+#define AVCOL_SPC_YCGCO AVCOL_SPC_YCOCG
+
+enum AVColorRange{
+ AVCOL_RANGE_UNSPECIFIED = 0,
+ AVCOL_RANGE_MPEG = 1, ///< the normal 219*2^(n-8) "MPEG" YUV ranges
+ AVCOL_RANGE_JPEG = 2, ///< the normal 2^n-1 "JPEG" YUV ranges
+ AVCOL_RANGE_NB , ///< Not part of ABI
+};
+
+/**
+ * X X 3 4 X X are luma samples,
+ * 1 2 1-6 are possible chroma positions
+ * X X 5 6 X 0 is undefined/unknown position
+ */
+enum AVChromaLocation{
+ AVCHROMA_LOC_UNSPECIFIED = 0,
+ AVCHROMA_LOC_LEFT = 1, ///< mpeg2/4, h264 default
+ AVCHROMA_LOC_CENTER = 2, ///< mpeg1, jpeg, h263
+ AVCHROMA_LOC_TOPLEFT = 3, ///< DV
+ AVCHROMA_LOC_TOP = 4,
+ AVCHROMA_LOC_BOTTOMLEFT = 5,
+ AVCHROMA_LOC_BOTTOM = 6,
+ AVCHROMA_LOC_NB , ///< Not part of ABI
+};
+
+enum AVAudioServiceType {
+ AV_AUDIO_SERVICE_TYPE_MAIN = 0,
+ AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
+ AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
+ AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
+ AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4,
+ AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5,
+ AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6,
+ AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
+ AV_AUDIO_SERVICE_TYPE_KARAOKE = 8,
+ AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI
+};
+
+/**
+ * @ingroup lavc_encoding
+ */
+typedef struct RcOverride{
+ int start_frame;
+ int end_frame;
+ int qscale; // If this is 0 then quality_factor will be used instead.
+ float quality_factor;
+} RcOverride;
+
+#define FF_MAX_B_FRAMES 16
+
+/* encoding support
+ These flags can be passed in AVCodecContext.flags before initialization.
+ Note: Not everything is supported yet.
+*/
+
+#define CODEC_FLAG_QSCALE 0x0002 ///< Use fixed qscale.
+#define CODEC_FLAG_4MV 0x0004 ///< 4 MV per MB allowed / advanced prediction for H.263.
+#define CODEC_FLAG_QPEL 0x0010 ///< Use qpel MC.
+#define CODEC_FLAG_GMC 0x0020 ///< Use GMC.
+#define CODEC_FLAG_MV0 0x0040 ///< Always try a MB with MV=<0,0>.
+/**
+ * The parent program guarantees that the input for B-frames containing
+ * streams is not written to for at least s->max_b_frames+1 frames, if
+ * this is not set the input will be copied.
+ */
+#define CODEC_FLAG_INPUT_PRESERVED 0x0100
+#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode.
+#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode.
+#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale.
+#define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges.
+#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding.
+#define CODEC_FLAG_TRUNCATED 0x00010000 /** Input bitstream might be truncated at a random
+ location instead of only at frame boundaries. */
+#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 ///< Normalize adaptive quantization.
+#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< Use interlaced DCT.
+#define CODEC_FLAG_LOW_DELAY 0x00080000 ///< Force low delay.
+#define CODEC_FLAG_GLOBAL_HEADER 0x00400000 ///< Place global headers in extradata instead of every keyframe.
+#define CODEC_FLAG_BITEXACT 0x00800000 ///< Use only bitexact stuff (except (I)DCT).
+/* Fx : Flag for h263+ extra options */
+#define CODEC_FLAG_AC_PRED 0x01000000 ///< H.263 advanced intra coding / MPEG-4 AC prediction
+#define CODEC_FLAG_LOOP_FILTER 0x00000800 ///< loop filter
+#define CODEC_FLAG_INTERLACED_ME 0x20000000 ///< interlaced motion estimation
+#define CODEC_FLAG_CLOSED_GOP 0x80000000
+#define CODEC_FLAG2_FAST 0x00000001 ///< Allow non spec compliant speedup tricks.
+#define CODEC_FLAG2_NO_OUTPUT 0x00000004 ///< Skip bitstream encoding.
+#define CODEC_FLAG2_LOCAL_HEADER 0x00000008 ///< Place global headers at every keyframe instead of in extradata.
+#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 ///< timecode is in drop frame format. DEPRECATED!!!!
+#define CODEC_FLAG2_IGNORE_CROP 0x00010000 ///< Discard cropping information from SPS.
+
+#if FF_API_MPV_GLOBAL_OPTS
+#define CODEC_FLAG_CBP_RD 0x04000000 ///< Use rate distortion optimization for cbp.
+#define CODEC_FLAG_QP_RD 0x08000000 ///< Use rate distortion optimization for qp selectioon.
+#define CODEC_FLAG2_STRICT_GOP 0x00000002 ///< Strictly enforce GOP size.
+#define CODEC_FLAG2_SKIP_RD 0x00004000 ///< RD optimal MB level residual skipping
+#endif
+#define CODEC_FLAG2_CHUNKS 0x00008000 ///< Input bitstream might be truncated at a packet boundaries instead of only at frame boundaries.
+#define CODEC_FLAG2_SHOW_ALL 0x00400000 ///< Show all frames before the first keyframe
+
+/* Unsupported options :
+ * Syntax Arithmetic coding (SAC)
+ * Reference Picture Selection
+ * Independent Segment Decoding */
+/* /Fx */
+/* codec capabilities */
+
+#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< Decoder can use draw_horiz_band callback.
+/**
+ * Codec uses get_buffer() for allocating buffers and supports custom allocators.
+ * If not set, it might not use get_buffer() at all or use operations that
+ * assume the buffer was allocated by avcodec_default_get_buffer.
+ */
+#define CODEC_CAP_DR1 0x0002
+#define CODEC_CAP_TRUNCATED 0x0008
+/* Codec can export data for HW decoding (XvMC). */
+#define CODEC_CAP_HWACCEL 0x0010
+/**
+ * Encoder or decoder requires flushing with NULL input at the end in order to
+ * give the complete and correct output.
+ *
+ * NOTE: If this flag is not set, the codec is guaranteed to never be fed with
+ * with NULL data. The user can still send NULL data to the public encode
+ * or decode function, but libavcodec will not pass it along to the codec
+ * unless this flag is set.
+ *
+ * Decoders:
+ * The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL,
+ * avpkt->size=0 at the end to get the delayed data until the decoder no longer
+ * returns frames.
+ *
+ * Encoders:
+ * The encoder needs to be fed with NULL data at the end of encoding until the
+ * encoder no longer returns data.
+ *
+ * NOTE: For encoders implementing the AVCodec.encode2() function, setting this
+ * flag also means that the encoder must set the pts and duration for
+ * each output packet. If this flag is not set, the pts and duration will
+ * be determined by libavcodec from the input frame.
+ */
+#define CODEC_CAP_DELAY 0x0020
+/**
+ * Codec can be fed a final frame with a smaller size.
+ * This can be used to prevent truncation of the last audio samples.
+ */
+#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
+/**
+ * Codec can export data for HW decoding (VDPAU).
+ */
+#define CODEC_CAP_HWACCEL_VDPAU 0x0080
+/**
+ * Codec can output multiple frames per AVPacket
+ * Normally demuxers return one frame at a time, demuxers which do not do
+ * are connected to a parser to split what they return into proper frames.
+ * This flag is reserved to the very rare category of codecs which have a
+ * bitstream that cannot be split into frames without timeconsuming
+ * operations like full decoding. Demuxers carring such bitstreams thus
+ * may return multiple frames in a packet. This has many disadvantages like
+ * prohibiting stream copy in many cases thus it should only be considered
+ * as a last resort.
+ */
+#define CODEC_CAP_SUBFRAMES 0x0100
+/**
+ * Codec is experimental and is thus avoided in favor of non experimental
+ * encoders
+ */
+#define CODEC_CAP_EXPERIMENTAL 0x0200
+/**
+ * Codec should fill in channel configuration and samplerate instead of container
+ */
+#define CODEC_CAP_CHANNEL_CONF 0x0400
+
+/**
+ * Codec is able to deal with negative linesizes
+ */
+#define CODEC_CAP_NEG_LINESIZES 0x0800
+
+/**
+ * Codec supports frame-level multithreading.
+ */
+#define CODEC_CAP_FRAME_THREADS 0x1000
+/**
+ * Codec supports slice-based (or partition-based) multithreading.
+ */
+#define CODEC_CAP_SLICE_THREADS 0x2000
+/**
+ * Codec supports changed parameters at any point.
+ */
+#define CODEC_CAP_PARAM_CHANGE 0x4000
+/**
+ * Codec supports avctx->thread_count == 0 (auto).
+ */
+#define CODEC_CAP_AUTO_THREADS 0x8000
+/**
+ * Audio encoder supports receiving a different number of samples in each call.
+ */
+#define CODEC_CAP_VARIABLE_FRAME_SIZE 0x10000
+/**
+ * Codec is intra only.
+ */
+#define CODEC_CAP_INTRA_ONLY 0x40000000
+/**
+ * Codec is lossless.
+ */
+#define CODEC_CAP_LOSSLESS 0x80000000
+
+//The following defines may change, don't expect compatibility if you use them.
+#define MB_TYPE_INTRA4x4 0x0001
+#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
+#define MB_TYPE_INTRA_PCM 0x0004 //FIXME H.264-specific
+#define MB_TYPE_16x16 0x0008
+#define MB_TYPE_16x8 0x0010
+#define MB_TYPE_8x16 0x0020
+#define MB_TYPE_8x8 0x0040
+#define MB_TYPE_INTERLACED 0x0080
+#define MB_TYPE_DIRECT2 0x0100 //FIXME
+#define MB_TYPE_ACPRED 0x0200
+#define MB_TYPE_GMC 0x0400
+#define MB_TYPE_SKIP 0x0800
+#define MB_TYPE_P0L0 0x1000
+#define MB_TYPE_P1L0 0x2000
+#define MB_TYPE_P0L1 0x4000
+#define MB_TYPE_P1L1 0x8000
+#define MB_TYPE_L0 (MB_TYPE_P0L0 | MB_TYPE_P1L0)
+#define MB_TYPE_L1 (MB_TYPE_P0L1 | MB_TYPE_P1L1)
+#define MB_TYPE_L0L1 (MB_TYPE_L0 | MB_TYPE_L1)
+#define MB_TYPE_QUANT 0x00010000
+#define MB_TYPE_CBP 0x00020000
+//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
+
+/**
+ * Pan Scan area.
+ * This specifies the area which should be displayed.
+ * Note there may be multiple such areas for one frame.
+ */
+typedef struct AVPanScan{
+ /**
+ * id
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int id;
+
+ /**
+ * width and height in 1/16 pel
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int width;
+ int height;
+
+ /**
+ * position of the top left corner in 1/16 pel for up to 3 fields/frames
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int16_t position[3][2];
+}AVPanScan;
+
+#define FF_QSCALE_TYPE_MPEG1 0
+#define FF_QSCALE_TYPE_MPEG2 1
+#define FF_QSCALE_TYPE_H264 2
+#define FF_QSCALE_TYPE_VP56 3
+
+#define FF_BUFFER_TYPE_INTERNAL 1
+#define FF_BUFFER_TYPE_USER 2 ///< direct rendering buffers (image is (de)allocated by user)
+#define FF_BUFFER_TYPE_SHARED 4 ///< Buffer from somewhere else; don't deallocate image (data/base), all other tables are not shared.
+#define FF_BUFFER_TYPE_COPY 8 ///< Just a (modified) copy of some other buffer, don't deallocate anything.
+
+#define FF_BUFFER_HINTS_VALID 0x01 // Buffer hints value is meaningful (if 0 ignore).
+#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer.
+#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content.
+#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update).
+
+/**
+ * @defgroup lavc_packet AVPacket
+ *
+ * Types and functions for working with AVPacket.
+ * @{
+ */
+enum AVPacketSideDataType {
+ AV_PKT_DATA_PALETTE,
+ AV_PKT_DATA_NEW_EXTRADATA,
+
+ /**
+ * An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
+ * @code
+ * u32le param_flags
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT)
+ * s32le channel_count
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT)
+ * u64le channel_layout
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
+ * s32le sample_rate
+ * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
+ * s32le width
+ * s32le height
+ * @endcode
+ */
+ AV_PKT_DATA_PARAM_CHANGE,
+
+ /**
+ * An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of
+ * structures with info about macroblocks relevant to splitting the
+ * packet into smaller packets on macroblock edges (e.g. as for RFC 2190).
+ * That is, it does not necessarily contain info about all macroblocks,
+ * as long as the distance between macroblocks in the info is smaller
+ * than the target payload size.
+ * Each MB info structure is 12 bytes, and is laid out as follows:
+ * @code
+ * u32le bit offset from the start of the packet
+ * u8 current quantizer at the start of the macroblock
+ * u8 GOB number
+ * u16le macroblock address within the GOB
+ * u8 horizontal MV predictor
+ * u8 vertical MV predictor
+ * u8 horizontal MV predictor for block number 3
+ * u8 vertical MV predictor for block number 3
+ * @endcode
+ */
+ AV_PKT_DATA_H263_MB_INFO,
+
+ /**
+ * Recommmends skipping the specified number of samples
+ * @code
+ * u32le number of samples to skip from start of this packet
+ * u32le number of samples to skip from end of this packet
+ * u8 reason for start skip
+ * u8 reason for end skip (0=padding silence, 1=convergence)
+ * @endcode
+ */
+ AV_PKT_DATA_SKIP_SAMPLES=70,
+
+ /**
+ * An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
+ * the packet may contain "dual mono" audio specific to Japanese DTV
+ * and if it is true, recommends only the selected channel to be used.
+ * @code
+ * u8 selected channels (0=mail/left, 1=sub/right, 2=both)
+ * @endcode
+ */
+ AV_PKT_DATA_JP_DUALMONO,
+
+ /**
+ * A list of zero terminated key/value strings. There is no end marker for
+ * the list, so it is required to rely on the side data size to stop.
+ */
+ AV_PKT_DATA_STRINGS_METADATA,
+
+ /**
+ * Subtitle event position
+ * @code
+ * u32le x1
+ * u32le y1
+ * u32le x2
+ * u32le y2
+ * @endcode
+ */
+ AV_PKT_DATA_SUBTITLE_POSITION,
+
+ /**
+ * Data found in BlockAdditional element of matroska container. There is
+ * no end marker for the data, so it is required to rely on the side data
+ * size to recognize the end. 8 byte id (as found in BlockAddId) followed
+ * by data.
+ */
+ AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
+};
+
+/**
+ * This structure stores compressed data. It is typically exported by demuxers
+ * and then passed as input to decoders, or received as output from encoders and
+ * then passed to muxers.
+ *
+ * For video, it should typically contain one compressed frame. For audio it may
+ * contain several compressed frames.
+ *
+ * AVPacket is one of the few structs in FFmpeg, whose size is a part of public
+ * ABI. Thus it may be allocated on stack and no new fields can be added to it
+ * without libavcodec and libavformat major bump.
+ *
+ * The semantics of data ownership depends on the destruct field.
+ * If it is set, the packet data is dynamically allocated and is valid
+ * indefinitely until av_free_packet() is called (which in turn calls the
+ * destruct callback to free the data). If destruct is not set, the packet data
+ * is typically backed by some static buffer somewhere and is only valid for a
+ * limited time (e.g. until the next read call when demuxing).
+ *
+ * The side data is always allocated with av_malloc() and is freed in
+ * av_free_packet().
+ */
+typedef struct AVPacket {
+ /**
+ * Presentation timestamp in AVStream->time_base units; the time at which
+ * the decompressed packet will be presented to the user.
+ * Can be AV_NOPTS_VALUE if it is not stored in the file.
+ * pts MUST be larger or equal to dts as presentation cannot happen before
+ * decompression, unless one wants to view hex dumps. Some formats misuse
+ * the terms dts and pts/cts to mean something different. Such timestamps
+ * must be converted to true pts/dts before they are stored in AVPacket.
+ */
+ int64_t pts;
+ /**
+ * Decompression timestamp in AVStream->time_base units; the time at which
+ * the packet is decompressed.
+ * Can be AV_NOPTS_VALUE if it is not stored in the file.
+ */
+ int64_t dts;
+ uint8_t *data;
+ int size;
+ int stream_index;
+ /**
+ * A combination of AV_PKT_FLAG values
+ */
+ int flags;
+ /**
+ * Additional packet data that can be provided by the container.
+ * Packet can contain several types of side information.
+ */
+ struct {
+ uint8_t *data;
+ int size;
+ enum AVPacketSideDataType type;
+ } *side_data;
+ int side_data_elems;
+
+ /**
+ * Duration of this packet in AVStream->time_base units, 0 if unknown.
+ * Equals next_pts - this_pts in presentation order.
+ */
+ int duration;
+ void (*destruct)(struct AVPacket *);
+ void *priv;
+ int64_t pos; ///< byte position in stream, -1 if unknown
+
+ /**
+ * Time difference in AVStream->time_base units from the pts of this
+ * packet to the point at which the output from the decoder has converged
+ * independent from the availability of previous frames. That is, the
+ * frames are virtually identical no matter if decoding started from
+ * the very first frame or from this keyframe.
+ * Is AV_NOPTS_VALUE if unknown.
+ * This field is not the display duration of the current packet.
+ * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
+ * set.
+ *
+ * The purpose of this field is to allow seeking in streams that have no
+ * keyframes in the conventional sense. It corresponds to the
+ * recovery point SEI in H.264 and match_time_delta in NUT. It is also
+ * essential for some types of subtitle streams to ensure that all
+ * subtitles are correctly displayed after seeking.
+ */
+ int64_t convergence_duration;
+} AVPacket;
+#define AV_PKT_FLAG_KEY 0x0001 ///< The packet contains a keyframe
+#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
+
+enum AVSideDataParamChangeFlags {
+ AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT = 0x0001,
+ AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002,
+ AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004,
+ AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008,
+};
+/**
+ * @}
+ */
+
+/**
+ * This structure describes decoded (raw) audio or video data.
+ *
+ * AVFrame must be allocated using avcodec_alloc_frame() and freed with
+ * avcodec_free_frame(). Note that this allocates only the AVFrame itself. The
+ * buffers for the data must be managed through other means.
+ *
+ * AVFrame is typically allocated once and then reused multiple times to hold
+ * different data (e.g. a single AVFrame to hold frames received from a
+ * decoder). In such a case, avcodec_get_frame_defaults() should be used to
+ * reset the frame to its original clean state before it is reused again.
+ *
+ * sizeof(AVFrame) is not a part of the public ABI, so new fields may be added
+ * to the end with a minor bump.
+ * Similarly fields that are marked as to be only accessed by
+ * av_opt_ptr() can be reordered. This allows 2 forks to add fields
+ * without breaking compatibility with each other.
+ */
+typedef struct AVFrame {
+#define AV_NUM_DATA_POINTERS 8
+ /**
+ * pointer to the picture/channel planes.
+ * This might be different from the first allocated byte
+ * - encoding: Set by user
+ * - decoding: set by AVCodecContext.get_buffer()
+ */
+ uint8_t *data[AV_NUM_DATA_POINTERS];
+
+ /**
+ * Size, in bytes, of the data for each picture/channel plane.
+ *
+ * For audio, only linesize[0] may be set. For planar audio, each channel
+ * plane must be the same size.
+ *
+ * - encoding: Set by user
+ * - decoding: set by AVCodecContext.get_buffer()
+ */
+ int linesize[AV_NUM_DATA_POINTERS];
+
+ /**
+ * pointers to the data planes/channels.
+ *
+ * For video, this should simply point to data[].
+ *
+ * For planar audio, each channel has a separate data pointer, and
+ * linesize[0] contains the size of each channel buffer.
+ * For packed audio, there is just one data pointer, and linesize[0]
+ * contains the total size of the buffer for all channels.
+ *
+ * Note: Both data and extended_data will always be set by get_buffer(),
+ * but for planar audio with more channels that can fit in data,
+ * extended_data must be used by the decoder in order to access all
+ * channels.
+ *
+ * encoding: set by user
+ * decoding: set by AVCodecContext.get_buffer()
+ */
+ uint8_t **extended_data;
+
+ /**
+ * width and height of the video frame
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int width, height;
+
+ /**
+ * number of audio samples (per channel) described by this frame
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ int nb_samples;
+
+ /**
+ * format of the frame, -1 if unknown or unset
+ * Values correspond to enum AVPixelFormat for video frames,
+ * enum AVSampleFormat for audio)
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int format;
+
+ /**
+ * 1 -> keyframe, 0-> not
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ int key_frame;
+
+ /**
+ * Picture type of the frame, see ?_TYPE below.
+ * - encoding: Set by libavcodec. for coded_picture (and set by user for input).
+ * - decoding: Set by libavcodec.
+ */
+ enum AVPictureType pict_type;
+
+ /**
+ * pointer to the first allocated byte of the picture. Can be used in get_buffer/release_buffer.
+ * This isn't used by libavcodec unless the default get/release_buffer() is used.
+ * - encoding:
+ * - decoding:
+ */
+ uint8_t *base[AV_NUM_DATA_POINTERS];
+
+ /**
+ * sample aspect ratio for the video frame, 0/1 if unknown/unspecified
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ AVRational sample_aspect_ratio;
+
+ /**
+ * presentation timestamp in time_base units (time when frame should be shown to user)
+ * If AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed.
+ * - encoding: MUST be set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int64_t pts;
+
+ /**
+ * pts copied from the AVPacket that was decoded to produce this frame
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int64_t pkt_pts;
+
+ /**
+ * dts copied from the AVPacket that triggered returning this frame
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int64_t pkt_dts;
+
+ /**
+ * picture number in bitstream order
+ * - encoding: set by
+ * - decoding: Set by libavcodec.
+ */
+ int coded_picture_number;
+ /**
+ * picture number in display order
+ * - encoding: set by
+ * - decoding: Set by libavcodec.
+ */
+ int display_picture_number;
+
+ /**
+ * quality (between 1 (good) and FF_LAMBDA_MAX (bad))
+ * - encoding: Set by libavcodec. for coded_picture (and set by user for input).
+ * - decoding: Set by libavcodec.
+ */
+ int quality;
+
+ /**
+ * is this picture used as reference
+ * The values for this are the same as the MpegEncContext.picture_structure
+ * variable, that is 1->top field, 2->bottom field, 3->frame/both fields.
+ * Set to 4 for delayed, non-reference frames.
+ * - encoding: unused
+ * - decoding: Set by libavcodec. (before get_buffer() call)).
+ */
+ int reference;
+
+ /**
+ * QP table
+ * - encoding: unused
+ * - decoding: Set by libavcodec.
+ */
+ int8_t *qscale_table;
+ /**
+ * QP store stride
+ * - encoding: unused
+ * - decoding: Set by libavcodec.
+ */
+ int qstride;
+
+ /**
+ *
+ */
+ int qscale_type;
+
+ /**
+ * mbskip_table[mb]>=1 if MB didn't change
+ * stride= mb_width = (width+15)>>4
+ * - encoding: unused
+ * - decoding: Set by libavcodec.
+ */
+ uint8_t *mbskip_table;
+
+ /**
+ * motion vector table
+ * @code
+ * example:
+ * int mv_sample_log2= 4 - motion_subsample_log2;
+ * int mb_width= (width+15)>>4;
+ * int mv_stride= (mb_width << mv_sample_log2) + 1;
+ * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];
+ * @endcode
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int16_t (*motion_val[2])[2];
+
+ /**
+ * macroblock type table
+ * mb_type_base + mb_width + 2
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ uint32_t *mb_type;
+
+ /**
+ * DCT coefficients
+ * - encoding: unused
+ * - decoding: Set by libavcodec.
+ */
+ short *dct_coeff;
+
+ /**
+ * motion reference frame index
+ * the order in which these are stored can depend on the codec.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int8_t *ref_index[2];
+
+ /**
+ * for some private data of the user
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ void *opaque;
+
+ /**
+ * error
+ * - encoding: Set by libavcodec. if flags&CODEC_FLAG_PSNR.
+ * - decoding: unused
+ */
+ uint64_t error[AV_NUM_DATA_POINTERS];
+
+ /**
+ * type of the buffer (to keep track of who has to deallocate data[*])
+ * - encoding: Set by the one who allocates it.
+ * - decoding: Set by the one who allocates it.
+ * Note: User allocated (direct rendering) & internal buffers cannot coexist currently.
+ */
+ int type;
+
+ /**
+ * When decoding, this signals how much the picture must be delayed.
+ * extra_delay = repeat_pict / (2*fps)
+ * - encoding: unused
+ * - decoding: Set by libavcodec.
+ */
+ int repeat_pict;
+
+ /**
+ * The content of the picture is interlaced.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec. (default 0)
+ */
+ int interlaced_frame;
+
+ /**
+ * If the content is interlaced, is top field displayed first.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int top_field_first;
+
+ /**
+ * Tell user application that palette has changed from previous frame.
+ * - encoding: ??? (no palette-enabled encoder yet)
+ * - decoding: Set by libavcodec. (default 0).
+ */
+ int palette_has_changed;
+
+ /**
+ * codec suggestion on buffer type if != 0
+ * - encoding: unused
+ * - decoding: Set by libavcodec. (before get_buffer() call)).
+ */
+ int buffer_hints;
+
+ /**
+ * Pan scan.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ AVPanScan *pan_scan;
+
+ /**
+ * reordered opaque 64bit (generally an integer or a double precision float
+ * PTS but can be anything).
+ * The user sets AVCodecContext.reordered_opaque to represent the input at
+ * that time,
+ * the decoder reorders values as needed and sets AVFrame.reordered_opaque
+ * to exactly one of the values provided by the user through AVCodecContext.reordered_opaque
+ * @deprecated in favor of pkt_pts
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int64_t reordered_opaque;
+
+ /**
+ * hardware accelerator private data (FFmpeg-allocated)
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ void *hwaccel_picture_private;
+
+ /**
+ * the AVCodecContext which ff_thread_get_buffer() was last called on
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ struct AVCodecContext *owner;
+
+ /**
+ * used by multithreading to store frame-specific info
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ void *thread_opaque;
+
+ /**
+ * log2 of the size of the block which a single vector in motion_val represents:
+ * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)
+ * - encoding: unused
+ * - decoding: Set by libavcodec.
+ */
+ uint8_t motion_subsample_log2;
+
+ /**
+ * Sample rate of the audio data.
+ *
+ * - encoding: unused
+ * - decoding: read by user
+ */
+ int sample_rate;
+
+ /**
+ * Channel layout of the audio data.
+ *
+ * - encoding: unused
+ * - decoding: read by user.
+ */
+ uint64_t channel_layout;
+
+ /**
+ * frame timestamp estimated using various heuristics, in stream time base
+ * Code outside libavcodec should access this field using:
+ * av_frame_get_best_effort_timestamp(frame)
+ * - encoding: unused
+ * - decoding: set by libavcodec, read by user.
+ */
+ int64_t best_effort_timestamp;
+
+ /**
+ * reordered pos from the last AVPacket that has been input into the decoder
+ * Code outside libavcodec should access this field using:
+ * av_frame_get_pkt_pos(frame)
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int64_t pkt_pos;
+
+ /**
+ * duration of the corresponding packet, expressed in
+ * AVStream->time_base units, 0 if unknown.
+ * Code outside libavcodec should access this field using:
+ * av_frame_get_pkt_duration(frame)
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int64_t pkt_duration;
+
+ /**
+ * metadata.
+ * Code outside libavcodec should access this field using:
+ * av_frame_get_metadata(frame)
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ AVDictionary *metadata;
+
+ /**
+ * decode error flags of the frame, set to a combination of
+ * FF_DECODE_ERROR_xxx flags if the decoder produced a frame, but there
+ * were errors during the decoding.
+ * Code outside libavcodec should access this field using:
+ * av_frame_get_decode_error_flags(frame)
+ * - encoding: unused
+ * - decoding: set by libavcodec, read by user.
+ */
+ int decode_error_flags;
+#define FF_DECODE_ERROR_INVALID_BITSTREAM 1
+#define FF_DECODE_ERROR_MISSING_REFERENCE 2
+
+ /**
+ * number of audio channels, only used for audio.
+ * Code outside libavcodec should access this field using:
+ * av_frame_get_channels(frame)
+ * - encoding: unused
+ * - decoding: Read by user.
+ */
+ int channels;
+
+ /**
+ * size of the corresponding packet containing the compressed
+ * frame. It must be accessed using av_frame_get_pkt_size() and
+ * av_frame_set_pkt_size().
+ * It is set to a negative value if unknown.
+ * - encoding: unused
+ * - decoding: set by libavcodec, read by user.
+ */
+ int pkt_size;
+} AVFrame;
+
+/**
+ * Accessors for some AVFrame fields.
+ * The position of these field in the structure is not part of the ABI,
+ * they should not be accessed directly outside libavcodec.
+ */
+int64_t av_frame_get_best_effort_timestamp(const AVFrame *frame);
+void av_frame_set_best_effort_timestamp(AVFrame *frame, int64_t val);
+int64_t av_frame_get_pkt_duration (const AVFrame *frame);
+void av_frame_set_pkt_duration (AVFrame *frame, int64_t val);
+int64_t av_frame_get_pkt_pos (const AVFrame *frame);
+void av_frame_set_pkt_pos (AVFrame *frame, int64_t val);
+int64_t av_frame_get_channel_layout (const AVFrame *frame);
+void av_frame_set_channel_layout (AVFrame *frame, int64_t val);
+int av_frame_get_channels (const AVFrame *frame);
+void av_frame_set_channels (AVFrame *frame, int val);
+int av_frame_get_sample_rate (const AVFrame *frame);
+void av_frame_set_sample_rate (AVFrame *frame, int val);
+AVDictionary *av_frame_get_metadata (const AVFrame *frame);
+void av_frame_set_metadata (AVFrame *frame, AVDictionary *val);
+int av_frame_get_decode_error_flags (const AVFrame *frame);
+void av_frame_set_decode_error_flags (AVFrame *frame, int val);
+int av_frame_get_pkt_size(const AVFrame *frame);
+void av_frame_set_pkt_size(AVFrame *frame, int val);
+
+struct AVCodecInternal;
+
+enum AVFieldOrder {
+ AV_FIELD_UNKNOWN,
+ AV_FIELD_PROGRESSIVE,
+ AV_FIELD_TT, //< Top coded_first, top displayed first
+ AV_FIELD_BB, //< Bottom coded first, bottom displayed first
+ AV_FIELD_TB, //< Top coded first, bottom displayed first
+ AV_FIELD_BT, //< Bottom coded first, top displayed first
+};
+
+/**
+ * main external API structure.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * Please use AVOptions (av_opt* / av_set/get*()) to access these fields from user
+ * applications.
+ * sizeof(AVCodecContext) must not be used outside libav*.
+ */
+typedef struct AVCodecContext {
+ /**
+ * information on struct for av_log
+ * - set by avcodec_alloc_context3
+ */
+ const AVClass *av_class;
+ int log_level_offset;
+
+ enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
+ const struct AVCodec *codec;
+ char codec_name[32];
+ enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */
+
+ /**
+ * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+ * This is used to work around some encoder bugs.
+ * A demuxer should set this to what is stored in the field used to identify the codec.
+ * If there are multiple such fields in a container then the demuxer should choose the one
+ * which maximizes the information about the used codec.
+ * If the codec tag field in a container is larger than 32 bits then the demuxer should
+ * remap the longer ID to 32 bits with a table or other structure. Alternatively a new
+ * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated
+ * first.
+ * - encoding: Set by user, if not then the default based on codec_id will be used.
+ * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+ */
+ unsigned int codec_tag;
+
+ /**
+ * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
+ * This is used to work around some encoder bugs.
+ * - encoding: unused
+ * - decoding: Set by user, will be converted to uppercase by libavcodec during init.
+ */
+ unsigned int stream_codec_tag;
+
+#if FF_API_SUB_ID
+ /**
+ * @deprecated this field is unused
+ */
+ attribute_deprecated int sub_id;
+#endif
+
+ void *priv_data;
+
+ /**
+ * Private context used for internal data.
+ *
+ * Unlike priv_data, this is not codec-specific. It is used in general
+ * libavcodec functions.
+ */
+ struct AVCodecInternal *internal;
+
+ /**
+ * Private data of the user, can be used to carry app specific stuff.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ void *opaque;
+
+ /**
+ * the average bitrate
+ * - encoding: Set by user; unused for constant quantizer encoding.
+ * - decoding: Set by libavcodec. 0 or some bitrate if this info is available in the stream.
+ */
+ int bit_rate;
+
+ /**
+ * number of bits the bitstream is allowed to diverge from the reference.
+ * the reference can be CBR (for CBR pass1) or VBR (for pass2)
+ * - encoding: Set by user; unused for constant quantizer encoding.
+ * - decoding: unused
+ */
+ int bit_rate_tolerance;
+
+ /**
+ * Global quality for codecs which cannot change it per frame.
+ * This should be proportional to MPEG-1/2/4 qscale.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int global_quality;
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int compression_level;
+#define FF_COMPRESSION_DEFAULT -1
+
+ /**
+ * CODEC_FLAG_*.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int flags;
+
+ /**
+ * CODEC_FLAG2_*
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int flags2;
+
+ /**
+ * some codecs need / can use extradata like Huffman tables.
+ * mjpeg: Huffman tables
+ * rv10: additional flags
+ * mpeg4: global headers (they can be in the bitstream or here)
+ * The allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
+ * than extradata_size to avoid prolems if it is read with the bitstream reader.
+ * The bytewise contents of extradata must not depend on the architecture or CPU endianness.
+ * - encoding: Set/allocated/freed by libavcodec.
+ * - decoding: Set/allocated/freed by user.
+ */
+ uint8_t *extradata;
+ int extradata_size;
+
+ /**
+ * This is the fundamental unit of time (in seconds) in terms
+ * of which frame timestamps are represented. For fixed-fps content,
+ * timebase should be 1/framerate and timestamp increments should be
+ * identically 1.
+ * - encoding: MUST be set by user.
+ * - decoding: Set by libavcodec.
+ */
+ AVRational time_base;
+
+ /**
+ * For some codecs, the time base is closer to the field rate than the frame rate.
+ * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration
+ * if no telecine is used ...
+ *
+ * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2.
+ */
+ int ticks_per_frame;
+
+ /**
+ * Codec delay.
+ *
+ * Encoding: Number of frames delay there will be from the encoder input to
+ * the decoder output. (we assume the decoder matches the spec)
+ * Decoding: Number of frames delay in addition to what a standard decoder
+ * as specified in the spec would produce.
+ *
+ * Video:
+ * Number of frames the decoded output will be delayed relative to the
+ * encoded input.
+ *
+ * Audio:
+ * For encoding, this is the number of "priming" samples added to the
+ * beginning of the stream. The decoded output will be delayed by this
+ * many samples relative to the input to the encoder. Note that this
+ * field is purely informational and does not directly affect the pts
+ * output by the encoder, which should always be based on the actual
+ * presentation time, including any delay.
+ * For decoding, this is the number of samples the decoder needs to
+ * output before the decoder's output is valid. When seeking, you should
+ * start decoding this many samples prior to your desired seek point.
+ *
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ int delay;
+
+
+ /* video only */
+ /**
+ * picture width / height.
+ * - encoding: MUST be set by user.
+ * - decoding: Set by libavcodec.
+ * Note: For compatibility it is possible to set this instead of
+ * coded_width/height before decoding.
+ */
+ int width, height;
+
+ /**
+ * Bitstream width / height, may be different from width/height if lowres enabled.
+ * - encoding: unused
+ * - decoding: Set by user before init if known. Codec should override / dynamically change if needed.
+ */
+ int coded_width, coded_height;
+
+#define FF_ASPECT_EXTENDED 15
+
+ /**
+ * the number of pictures in a group of pictures, or 0 for intra_only
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int gop_size;
+
+ /**
+ * Pixel format, see AV_PIX_FMT_xxx.
+ * May be set by the demuxer if known from headers.
+ * May be overridden by the decoder if it knows better.
+ * - encoding: Set by user.
+ * - decoding: Set by user if known, overridden by libavcodec if known
+ */
+ enum AVPixelFormat pix_fmt;
+
+ /**
+ * Motion estimation algorithm used for video coding.
+ * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
+ * 8 (umh), 9 (iter), 10 (tesa) [7, 8, 10 are x264 specific, 9 is snow specific]
+ * - encoding: MUST be set by user.
+ * - decoding: unused
+ */
+ int me_method;
+
+ /**
+ * If non NULL, 'draw_horiz_band' is called by the libavcodec
+ * decoder to draw a horizontal band. It improves cache usage. Not
+ * all codecs can do that. You must check the codec capabilities
+ * beforehand.
+ * When multithreading is used, it may be called from multiple threads
+ * at the same time; threads might draw different parts of the same AVFrame,
+ * or multiple AVFrames, and there is no guarantee that slices will be drawn
+ * in order.
+ * The function is also used by hardware acceleration APIs.
+ * It is called at least once during frame decoding to pass
+ * the data needed for hardware render.
+ * In that mode instead of pixel data, AVFrame points to
+ * a structure specific to the acceleration API. The application
+ * reads the structure and can change some fields to indicate progress
+ * or mark state.
+ * - encoding: unused
+ * - decoding: Set by user.
+ * @param height the height of the slice
+ * @param y the y position of the slice
+ * @param type 1->top field, 2->bottom field, 3->frame
+ * @param offset offset into the AVFrame.data from which the slice should be read
+ */
+ void (*draw_horiz_band)(struct AVCodecContext *s,
+ const AVFrame *src, int offset[AV_NUM_DATA_POINTERS],
+ int y, int type, int height);
+
+ /**
+ * callback to negotiate the pixelFormat
+ * @param fmt is the list of formats which are supported by the codec,
+ * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality.
+ * The first is always the native one.
+ * @return the chosen format
+ * - encoding: unused
+ * - decoding: Set by user, if not set the native format will be chosen.
+ */
+ enum AVPixelFormat (*get_format)(struct AVCodecContext *s, const enum AVPixelFormat * fmt);
+
+ /**
+ * maximum number of B-frames between non-B-frames
+ * Note: The output will be delayed by max_b_frames+1 relative to the input.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int max_b_frames;
+
+ /**
+ * qscale factor between IP and B-frames
+ * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset).
+ * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float b_quant_factor;
+
+ /** obsolete FIXME remove */
+ int rc_strategy;
+#define FF_RC_STRATEGY_XVID 1
+
+ int b_frame_strategy;
+
+#if FF_API_MPV_GLOBAL_OPTS
+ /**
+ * luma single coefficient elimination threshold
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ attribute_deprecated int luma_elim_threshold;
+
+ /**
+ * chroma single coeff elimination threshold
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ attribute_deprecated int chroma_elim_threshold;
+#endif
+
+ /**
+ * qscale offset between IP and B-frames
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float b_quant_offset;
+
+ /**
+ * Size of the frame reordering buffer in the decoder.
+ * For MPEG-2 it is 1 IPB or 0 low delay IP.
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ int has_b_frames;
+
+ /**
+ * 0-> h263 quant 1-> mpeg quant
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mpeg_quant;
+
+ /**
+ * qscale factor between P and I-frames
+ * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset).
+ * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset).
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float i_quant_factor;
+
+ /**
+ * qscale offset between P and I-frames
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float i_quant_offset;
+
+ /**
+ * luminance masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float lumi_masking;
+
+ /**
+ * temporary complexity masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float temporal_cplx_masking;
+
+ /**
+ * spatial complexity masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float spatial_cplx_masking;
+
+ /**
+ * p block masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float p_masking;
+
+ /**
+ * darkness masking (0-> disabled)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float dark_masking;
+
+ /**
+ * slice count
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by user (or 0).
+ */
+ int slice_count;
+ /**
+ * prediction method (needed for huffyuv)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int prediction_method;
+#define FF_PRED_LEFT 0
+#define FF_PRED_PLANE 1
+#define FF_PRED_MEDIAN 2
+
+ /**
+ * slice offsets in the frame in bytes
+ * - encoding: Set/allocated by libavcodec.
+ * - decoding: Set/allocated by user (or NULL).
+ */
+ int *slice_offset;
+
+ /**
+ * sample aspect ratio (0 if unknown)
+ * That is the width of a pixel divided by the height of the pixel.
+ * Numerator and denominator must be relatively prime and smaller than 256 for some video standards.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ AVRational sample_aspect_ratio;
+
+ /**
+ * motion estimation comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_cmp;
+ /**
+ * subpixel motion estimation comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_sub_cmp;
+ /**
+ * macroblock comparison function (not supported yet)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_cmp;
+ /**
+ * interlaced DCT comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int ildct_cmp;
+#define FF_CMP_SAD 0
+#define FF_CMP_SSE 1
+#define FF_CMP_SATD 2
+#define FF_CMP_DCT 3
+#define FF_CMP_PSNR 4
+#define FF_CMP_BIT 5
+#define FF_CMP_RD 6
+#define FF_CMP_ZERO 7
+#define FF_CMP_VSAD 8
+#define FF_CMP_VSSE 9
+#define FF_CMP_NSSE 10
+#define FF_CMP_W53 11
+#define FF_CMP_W97 12
+#define FF_CMP_DCTMAX 13
+#define FF_CMP_DCT264 14
+#define FF_CMP_CHROMA 256
+
+ /**
+ * ME diamond size & shape
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int dia_size;
+
+ /**
+ * amount of previous MV predictors (2a+1 x 2a+1 square)
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int last_predictor_count;
+
+ /**
+ * prepass for motion estimation
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int pre_me;
+
+ /**
+ * motion estimation prepass comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_pre_cmp;
+
+ /**
+ * ME prepass diamond size & shape
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int pre_dia_size;
+
+ /**
+ * subpel ME quality
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_subpel_quality;
+
+ /**
+ * DTG active format information (additional aspect ratio
+ * information only used in DVB MPEG-2 transport streams)
+ * 0 if not set.
+ *
+ * - encoding: unused
+ * - decoding: Set by decoder.
+ */
+ int dtg_active_format;
+#define FF_DTG_AFD_SAME 8
+#define FF_DTG_AFD_4_3 9
+#define FF_DTG_AFD_16_9 10
+#define FF_DTG_AFD_14_9 11
+#define FF_DTG_AFD_4_3_SP_14_9 13
+#define FF_DTG_AFD_16_9_SP_14_9 14
+#define FF_DTG_AFD_SP_4_3 15
+
+ /**
+ * maximum motion estimation search range in subpel units
+ * If 0 then no limit.
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_range;
+
+ /**
+ * intra quantizer bias
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int intra_quant_bias;
+#define FF_DEFAULT_QUANT_BIAS 999999
+
+ /**
+ * inter quantizer bias
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int inter_quant_bias;
+
+#if FF_API_COLOR_TABLE_ID
+ /**
+ * color table ID
+ * - encoding: unused
+ * - decoding: Which clrtable should be used for 8bit RGB images.
+ * Tables have to be stored somewhere. FIXME
+ */
+ attribute_deprecated int color_table_id;
+#endif
+
+ /**
+ * slice flags
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int slice_flags;
+#define SLICE_FLAG_CODED_ORDER 0x0001 ///< draw_horiz_band() is called in coded order instead of display
+#define SLICE_FLAG_ALLOW_FIELD 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
+#define SLICE_FLAG_ALLOW_PLANE 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
+
+ /**
+ * XVideo Motion Acceleration
+ * - encoding: forbidden
+ * - decoding: set by decoder
+ */
+ int xvmc_acceleration;
+
+ /**
+ * macroblock decision mode
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_decision;
+#define FF_MB_DECISION_SIMPLE 0 ///< uses mb_cmp
+#define FF_MB_DECISION_BITS 1 ///< chooses the one which needs the fewest bits
+#define FF_MB_DECISION_RD 2 ///< rate distortion
+
+ /**
+ * custom intra quantization matrix
+ * - encoding: Set by user, can be NULL.
+ * - decoding: Set by libavcodec.
+ */
+ uint16_t *intra_matrix;
+
+ /**
+ * custom inter quantization matrix
+ * - encoding: Set by user, can be NULL.
+ * - decoding: Set by libavcodec.
+ */
+ uint16_t *inter_matrix;
+
+ /**
+ * scene change detection threshold
+ * 0 is default, larger means fewer detected scene changes.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int scenechange_threshold;
+
+ /**
+ * noise reduction strength
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int noise_reduction;
+
+#if FF_API_INTER_THRESHOLD
+ /**
+ * @deprecated this field is unused
+ */
+ attribute_deprecated int inter_threshold;
+#endif
+
+#if FF_API_MPV_GLOBAL_OPTS
+ /**
+ * @deprecated use mpegvideo private options instead
+ */
+ attribute_deprecated int quantizer_noise_shaping;
+#endif
+
+ /**
+ * Motion estimation threshold below which no motion estimation is
+ * performed, but instead the user specified motion vectors are used.
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_threshold;
+
+ /**
+ * Macroblock threshold below which the user specified macroblock types will be used.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_threshold;
+
+ /**
+ * precision of the intra DC coefficient - 8
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int intra_dc_precision;
+
+ /**
+ * Number of macroblock rows at the top which are skipped.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int skip_top;
+
+ /**
+ * Number of macroblock rows at the bottom which are skipped.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int skip_bottom;
+
+ /**
+ * Border processing masking, raises the quantizer for mbs on the borders
+ * of the picture.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float border_masking;
+
+ /**
+ * minimum MB lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_lmin;
+
+ /**
+ * maximum MB lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mb_lmax;
+
+ /**
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int me_penalty_compensation;
+
+ /**
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int bidir_refine;
+
+ /**
+ *
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int brd_scale;
+
+ /**
+ * minimum GOP size
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int keyint_min;
+
+ /**
+ * number of reference frames
+ * - encoding: Set by user.
+ * - decoding: Set by lavc.
+ */
+ int refs;
+
+ /**
+ * chroma qp offset from luma
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int chromaoffset;
+
+ /**
+ * Multiplied by qscale for each frame and added to scene_change_score.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int scenechange_factor;
+
+ /**
+ *
+ * Note: Value depends upon the compare function used for fullpel ME.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int mv0_threshold;
+
+ /**
+ * Adjust sensitivity of b_frame_strategy 1.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int b_sensitivity;
+
+ /**
+ * Chromaticity coordinates of the source primaries.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorPrimaries color_primaries;
+
+ /**
+ * Color Transfer Characteristic.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorTransferCharacteristic color_trc;
+
+ /**
+ * YUV colorspace type.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorSpace colorspace;
+
+ /**
+ * MPEG vs JPEG YUV range.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVColorRange color_range;
+
+ /**
+ * This defines the location of chroma samples.
+ * - encoding: Set by user
+ * - decoding: Set by libavcodec
+ */
+ enum AVChromaLocation chroma_sample_location;
+
+ /**
+ * Number of slices.
+ * Indicates number of picture subdivisions. Used for parallelized
+ * decoding.
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ int slices;
+
+ /** Field order
+ * - encoding: set by libavcodec
+ * - decoding: Set by user.
+ */
+ enum AVFieldOrder field_order;
+
+ /* audio only */
+ int sample_rate; ///< samples per second
+ int channels; ///< number of audio channels
+
+ /**
+ * audio sample format
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ enum AVSampleFormat sample_fmt; ///< sample format
+
+ /* The following data should not be initialized. */
+ /**
+ * Number of samples per channel in an audio frame.
+ *
+ * - encoding: set by libavcodec in avcodec_open2(). Each submitted frame
+ * except the last must contain exactly frame_size samples per channel.
+ * May be 0 when the codec has CODEC_CAP_VARIABLE_FRAME_SIZE set, then the
+ * frame size is not restricted.
+ * - decoding: may be set by some decoders to indicate constant frame size
+ */
+ int frame_size;
+
+ /**
+ * Frame counter, set by libavcodec.
+ *
+ * - decoding: total number of frames returned from the decoder so far.
+ * - encoding: total number of frames passed to the encoder so far.
+ *
+ * @note the counter is not incremented if encoding/decoding resulted in
+ * an error.
+ */
+ int frame_number;
+
+ /**
+ * number of bytes per packet if constant and known or 0
+ * Used by some WAV based audio codecs.
+ */
+ int block_align;
+
+ /**
+ * Audio cutoff bandwidth (0 means "automatic")
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int cutoff;
+
+#if FF_API_REQUEST_CHANNELS
+ /**
+ * Decoder should decode to this many channels if it can (0 for default)
+ * - encoding: unused
+ * - decoding: Set by user.
+ * @deprecated Deprecated in favor of request_channel_layout.
+ */
+ int request_channels;
+#endif
+
+ /**
+ * Audio channel layout.
+ * - encoding: set by user.
+ * - decoding: set by user, may be overwritten by libavcodec.
+ */
+ uint64_t channel_layout;
+
+ /**
+ * Request decoder to use this channel layout if it can (0 for default)
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ uint64_t request_channel_layout;
+
+ /**
+ * Type of service that the audio stream conveys.
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ enum AVAudioServiceType audio_service_type;
+
+ /**
+ * desired sample format
+ * - encoding: Not used.
+ * - decoding: Set by user.
+ * Decoder will decode to this format if it can.
+ */
+ enum AVSampleFormat request_sample_fmt;
+
+ /**
+ * Called at the beginning of each frame to get a buffer for it.
+ *
+ * The function will set AVFrame.data[], AVFrame.linesize[].
+ * AVFrame.extended_data[] must also be set, but it should be the same as
+ * AVFrame.data[] except for planar audio with more channels than can fit
+ * in AVFrame.data[]. In that case, AVFrame.data[] shall still contain as
+ * many data pointers as it can hold.
+ *
+ * if CODEC_CAP_DR1 is not set then get_buffer() must call
+ * avcodec_default_get_buffer() instead of providing buffers allocated by
+ * some other means.
+ *
+ * AVFrame.data[] should be 32- or 16-byte-aligned unless the CPU doesn't
+ * need it. avcodec_default_get_buffer() aligns the output buffer properly,
+ * but if get_buffer() is overridden then alignment considerations should
+ * be taken into account.
+ *
+ * @see avcodec_default_get_buffer()
+ *
+ * Video:
+ *
+ * If pic.reference is set then the frame will be read later by libavcodec.
+ * avcodec_align_dimensions2() should be used to find the required width and
+ * height, as they normally need to be rounded up to the next multiple of 16.
+ *
+ * If frame multithreading is used and thread_safe_callbacks is set,
+ * it may be called from a different thread, but not from more than one at
+ * once. Does not need to be reentrant.
+ *
+ * @see release_buffer(), reget_buffer()
+ * @see avcodec_align_dimensions2()
+ *
+ * Audio:
+ *
+ * Decoders request a buffer of a particular size by setting
+ * AVFrame.nb_samples prior to calling get_buffer(). The decoder may,
+ * however, utilize only part of the buffer by setting AVFrame.nb_samples
+ * to a smaller value in the output frame.
+ *
+ * Decoders cannot use the buffer after returning from
+ * avcodec_decode_audio4(), so they will not call release_buffer(), as it
+ * is assumed to be released immediately upon return. In some rare cases,
+ * a decoder may need to call get_buffer() more than once in a single
+ * call to avcodec_decode_audio4(). In that case, when get_buffer() is
+ * called again after it has already been called once, the previously
+ * acquired buffer is assumed to be released at that time and may not be
+ * reused by the decoder.
+ *
+ * As a convenience, av_samples_get_buffer_size() and
+ * av_samples_fill_arrays() in libavutil may be used by custom get_buffer()
+ * functions to find the required data size and to fill data pointers and
+ * linesize. In AVFrame.linesize, only linesize[0] may be set for audio
+ * since all planes must be the same size.
+ *
+ * @see av_samples_get_buffer_size(), av_samples_fill_arrays()
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
+
+ /**
+ * Called to release buffers which were allocated with get_buffer.
+ * A released buffer can be reused in get_buffer().
+ * pic.data[*] must be set to NULL.
+ * May be called from a different thread if frame multithreading is used,
+ * but not by more than one thread at once, so does not need to be reentrant.
+ * - encoding: unused
+ * - decoding: Set by libavcodec, user can override.
+ */
+ void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
+
+ /**
+ * Called at the beginning of a frame to get cr buffer for it.
+ * Buffer type (size, hints) must be the same. libavcodec won't check it.
+ * libavcodec will pass previous buffer in pic, function should return
+ * same buffer or new buffer with old frame "painted" into it.
+ * If pic.data[0] == NULL must behave like get_buffer().
+ * if CODEC_CAP_DR1 is not set then reget_buffer() must call
+ * avcodec_default_reget_buffer() instead of providing buffers allocated by
+ * some other means.
+ * - encoding: unused
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
+
+
+ /* - encoding parameters */
+ float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0)
+ float qblur; ///< amount of qscale smoothing over time (0.0-1.0)
+
+ /**
+ * minimum quantizer
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int qmin;
+
+ /**
+ * maximum quantizer
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int qmax;
+
+ /**
+ * maximum quantizer difference between frames
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int max_qdiff;
+
+ /**
+ * ratecontrol qmin qmax limiting method
+ * 0-> clipping, 1-> use a nice continuous function to limit qscale wthin qmin/qmax.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float rc_qsquish;
+
+ float rc_qmod_amp;
+ int rc_qmod_freq;
+
+ /**
+ * decoder bitstream buffer size
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_buffer_size;
+
+ /**
+ * ratecontrol override, see RcOverride
+ * - encoding: Allocated/set/freed by user.
+ * - decoding: unused
+ */
+ int rc_override_count;
+ RcOverride *rc_override;
+
+ /**
+ * rate control equation
+ * - encoding: Set by user
+ * - decoding: unused
+ */
+ const char *rc_eq;
+
+ /**
+ * maximum bitrate
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_max_rate;
+
+ /**
+ * minimum bitrate
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_min_rate;
+
+ float rc_buffer_aggressivity;
+
+ /**
+ * initial complexity for pass1 ratecontrol
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ float rc_initial_cplx;
+
+ /**
+ * Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow.
+ * - encoding: Set by user.
+ * - decoding: unused.
+ */
+ float rc_max_available_vbv_use;
+
+ /**
+ * Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow.
+ * - encoding: Set by user.
+ * - decoding: unused.
+ */
+ float rc_min_vbv_overflow_use;
+
+ /**
+ * Number of bits which should be loaded into the rc buffer before decoding starts.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int rc_initial_buffer_occupancy;
+
+#define FF_CODER_TYPE_VLC 0
+#define FF_CODER_TYPE_AC 1
+#define FF_CODER_TYPE_RAW 2
+#define FF_CODER_TYPE_RLE 3
+#define FF_CODER_TYPE_DEFLATE 4
+ /**
+ * coder type
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int coder_type;
+
+ /**
+ * context model
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int context_model;
+
+ /**
+ * minimum Lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int lmin;
+
+ /**
+ * maximum Lagrange multipler
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int lmax;
+
+ /**
+ * frame skip threshold
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_threshold;
+
+ /**
+ * frame skip factor
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_factor;
+
+ /**
+ * frame skip exponent
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_exp;
+
+ /**
+ * frame skip comparison function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int frame_skip_cmp;
+
+ /**
+ * trellis RD quantization
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int trellis;
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int min_prediction_order;
+
+ /**
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int max_prediction_order;
+
+ /**
+ * GOP timecode frame start number
+ * - encoding: Set by user, in non drop frame format
+ * - decoding: Set by libavcodec (timecode in the 25 bits format, -1 if unset)
+ */
+ int64_t timecode_frame_start;
+
+ /* The RTP callback: This function is called */
+ /* every time the encoder has a packet to send. */
+ /* It depends on the encoder if the data starts */
+ /* with a Start Code (it should). H.263 does. */
+ /* mb_nb contains the number of macroblocks */
+ /* encoded in the RTP payload. */
+ void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
+
+ int rtp_payload_size; /* The size of the RTP payload: the coder will */
+ /* do its best to deliver a chunk with size */
+ /* below rtp_payload_size, the chunk will start */
+ /* with a start code on some codecs like H.263. */
+ /* This doesn't take account of any particular */
+ /* headers inside the transmitted RTP payload. */
+
+ /* statistics, used for 2-pass encoding */
+ int mv_bits;
+ int header_bits;
+ int i_tex_bits;
+ int p_tex_bits;
+ int i_count;
+ int p_count;
+ int skip_count;
+ int misc_bits;
+
+ /**
+ * number of bits used for the previously encoded frame
+ * - encoding: Set by libavcodec.
+ * - decoding: unused
+ */
+ int frame_bits;
+
+ /**
+ * pass1 encoding statistics output buffer
+ * - encoding: Set by libavcodec.
+ * - decoding: unused
+ */
+ char *stats_out;
+
+ /**
+ * pass2 encoding statistics input buffer
+ * Concatenated stuff from stats_out of pass1 should be placed here.
+ * - encoding: Allocated/set/freed by user.
+ * - decoding: unused
+ */
+ char *stats_in;
+
+ /**
+ * Work around bugs in encoders which sometimes cannot be detected automatically.
+ * - encoding: Set by user
+ * - decoding: Set by user
+ */
+ int workaround_bugs;
+#define FF_BUG_AUTODETECT 1 ///< autodetection
+#define FF_BUG_OLD_MSMPEG4 2
+#define FF_BUG_XVID_ILACE 4
+#define FF_BUG_UMP4 8
+#define FF_BUG_NO_PADDING 16
+#define FF_BUG_AMV 32
+#define FF_BUG_AC_VLC 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default.
+#define FF_BUG_QPEL_CHROMA 64
+#define FF_BUG_STD_QPEL 128
+#define FF_BUG_QPEL_CHROMA2 256
+#define FF_BUG_DIRECT_BLOCKSIZE 512
+#define FF_BUG_EDGE 1024
+#define FF_BUG_HPEL_CHROMA 2048
+#define FF_BUG_DC_CLIP 4096
+#define FF_BUG_MS 8192 ///< Work around various bugs in Microsoft's broken decoders.
+#define FF_BUG_TRUNCATED 16384
+
+ /**
+ * strictly follow the standard (MPEG4, ...).
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ * Setting this to STRICT or higher means the encoder and decoder will
+ * generally do stupid things, whereas setting it to unofficial or lower
+ * will mean the encoder might produce output that is not supported by all
+ * spec-compliant decoders. Decoders don't differentiate between normal,
+ * unofficial and experimental (that is, they always try to decode things
+ * when they can) unless they are explicitly asked to behave stupidly
+ * (=strictly conform to the specs)
+ */
+ int strict_std_compliance;
+#define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software.
+#define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences.
+#define FF_COMPLIANCE_NORMAL 0
+#define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions
+#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
+
+ /**
+ * error concealment flags
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int error_concealment;
+#define FF_EC_GUESS_MVS 1
+#define FF_EC_DEBLOCK 2
+
+ /**
+ * debug
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int debug;
+#define FF_DEBUG_PICT_INFO 1
+#define FF_DEBUG_RC 2
+#define FF_DEBUG_BITSTREAM 4
+#define FF_DEBUG_MB_TYPE 8
+#define FF_DEBUG_QP 16
+#define FF_DEBUG_MV 32
+#define FF_DEBUG_DCT_COEFF 0x00000040
+#define FF_DEBUG_SKIP 0x00000080
+#define FF_DEBUG_STARTCODE 0x00000100
+#define FF_DEBUG_PTS 0x00000200
+#define FF_DEBUG_ER 0x00000400
+#define FF_DEBUG_MMCO 0x00000800
+#define FF_DEBUG_BUGS 0x00001000
+#define FF_DEBUG_VIS_QP 0x00002000
+#define FF_DEBUG_VIS_MB_TYPE 0x00004000
+#define FF_DEBUG_BUFFERS 0x00008000
+#define FF_DEBUG_THREADS 0x00010000
+
+ /**
+ * debug
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int debug_mv;
+#define FF_DEBUG_VIS_MV_P_FOR 0x00000001 //visualize forward predicted MVs of P frames
+#define FF_DEBUG_VIS_MV_B_FOR 0x00000002 //visualize forward predicted MVs of B frames
+#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
+
+ /**
+ * Error recognition; may misdetect some more or less valid parts as errors.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int err_recognition;
+#define AV_EF_CRCCHECK (1<<0)
+#define AV_EF_BITSTREAM (1<<1)
+#define AV_EF_BUFFER (1<<2)
+#define AV_EF_EXPLODE (1<<3)
+
+#define AV_EF_CAREFUL (1<<16)
+#define AV_EF_COMPLIANT (1<<17)
+#define AV_EF_AGGRESSIVE (1<<18)
+
+
+ /**
+ * opaque 64bit number (generally a PTS) that will be reordered and
+ * output in AVFrame.reordered_opaque
+ * @deprecated in favor of pkt_pts
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int64_t reordered_opaque;
+
+ /**
+ * Hardware accelerator in use
+ * - encoding: unused.
+ * - decoding: Set by libavcodec
+ */
+ struct AVHWAccel *hwaccel;
+
+ /**
+ * Hardware accelerator context.
+ * For some hardware accelerators, a global context needs to be
+ * provided by the user. In that case, this holds display-dependent
+ * data FFmpeg cannot instantiate itself. Please refer to the
+ * FFmpeg HW accelerator documentation to know how to fill this
+ * is. e.g. for VA API, this is a struct vaapi_context.
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ void *hwaccel_context;
+
+ /**
+ * error
+ * - encoding: Set by libavcodec if flags&CODEC_FLAG_PSNR.
+ * - decoding: unused
+ */
+ uint64_t error[AV_NUM_DATA_POINTERS];
+
+ /**
+ * DCT algorithm, see FF_DCT_* below
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int dct_algo;
+#define FF_DCT_AUTO 0
+#define FF_DCT_FASTINT 1
+#define FF_DCT_INT 2
+#define FF_DCT_MMX 3
+#define FF_DCT_ALTIVEC 5
+#define FF_DCT_FAAN 6
+
+ /**
+ * IDCT algorithm, see FF_IDCT_* below.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int idct_algo;
+#define FF_IDCT_AUTO 0
+#define FF_IDCT_INT 1
+#define FF_IDCT_SIMPLE 2
+#define FF_IDCT_SIMPLEMMX 3
+#define FF_IDCT_LIBMPEG2MMX 4
+#if FF_API_MMI
+#define FF_IDCT_MMI 5
+#endif
+#define FF_IDCT_ARM 7
+#define FF_IDCT_ALTIVEC 8
+#define FF_IDCT_SH4 9
+#define FF_IDCT_SIMPLEARM 10
+#define FF_IDCT_IPP 13
+#define FF_IDCT_XVIDMMX 14
+#define FF_IDCT_SIMPLEARMV5TE 16
+#define FF_IDCT_SIMPLEARMV6 17
+#define FF_IDCT_SIMPLEVIS 18
+#define FF_IDCT_FAAN 20
+#define FF_IDCT_SIMPLENEON 22
+#define FF_IDCT_SIMPLEALPHA 23
+#if FF_API_IDCT
+#define FF_IDCT_H264 11
+#define FF_IDCT_VP3 12
+#define FF_IDCT_CAVS 15
+#define FF_IDCT_WMV2 19
+#define FF_IDCT_EA 21
+#define FF_IDCT_BINK 24
+#endif
+
+#if FF_API_DSP_MASK
+ /**
+ * Unused.
+ * @deprecated use av_set_cpu_flags_mask() instead.
+ */
+ attribute_deprecated unsigned dsp_mask;
+#endif
+
+ /**
+ * bits per sample/pixel from the demuxer (needed for huffyuv).
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by user.
+ */
+ int bits_per_coded_sample;
+
+ /**
+ * Bits per sample/pixel of internal libavcodec pixel/sample format.
+ * - encoding: set by user.
+ * - decoding: set by libavcodec.
+ */
+ int bits_per_raw_sample;
+
+ /**
+ * low resolution decoding, 1-> 1/2 size, 2->1/4 size
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int lowres;
+
+ /**
+ * the picture in the bitstream
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ AVFrame *coded_frame;
+
+ /**
+ * thread count
+ * is used to decide how many independent tasks should be passed to execute()
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int thread_count;
+
+ /**
+ * Which multithreading methods to use.
+ * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread,
+ * so clients which cannot provide future frames should not use it.
+ *
+ * - encoding: Set by user, otherwise the default is used.
+ * - decoding: Set by user, otherwise the default is used.
+ */
+ int thread_type;
+#define FF_THREAD_FRAME 1 ///< Decode more than one frame at once
+#define FF_THREAD_SLICE 2 ///< Decode more than one part of a single frame at once
+
+ /**
+ * Which multithreading methods are in use by the codec.
+ * - encoding: Set by libavcodec.
+ * - decoding: Set by libavcodec.
+ */
+ int active_thread_type;
+
+ /**
+ * Set by the client if its custom get_buffer() callback can be called
+ * synchronously from another thread, which allows faster multithreaded decoding.
+ * draw_horiz_band() will be called from other threads regardless of this setting.
+ * Ignored if the default get_buffer() is used.
+ * - encoding: Set by user.
+ * - decoding: Set by user.
+ */
+ int thread_safe_callbacks;
+
+ /**
+ * The codec may call this to execute several independent things.
+ * It will return only after finishing all tasks.
+ * The user may replace this with some multithreaded implementation,
+ * the default implementation will execute the parts serially.
+ * @param count the number of things to execute
+ * - encoding: Set by libavcodec, user can override.
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);
+
+ /**
+ * The codec may call this to execute several independent things.
+ * It will return only after finishing all tasks.
+ * The user may replace this with some multithreaded implementation,
+ * the default implementation will execute the parts serially.
+ * Also see avcodec_thread_init and e.g. the --enable-pthread configure option.
+ * @param c context passed also to func
+ * @param count the number of things to execute
+ * @param arg2 argument passed unchanged to func
+ * @param ret return values of executed functions, must have space for "count" values. May be NULL.
+ * @param func function that will be called count times, with jobnr from 0 to count-1.
+ * threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no
+ * two instances of func executing at the same time will have the same threadnr.
+ * @return always 0 currently, but code should handle a future improvement where when any call to func
+ * returns < 0 no further calls to func may be done and < 0 is returned.
+ * - encoding: Set by libavcodec, user can override.
+ * - decoding: Set by libavcodec, user can override.
+ */
+ int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);
+
+ /**
+ * thread opaque
+ * Can be used by execute() to store some per AVCodecContext stuff.
+ * - encoding: set by execute()
+ * - decoding: set by execute()
+ */
+ void *thread_opaque;
+
+ /**
+ * noise vs. sse weight for the nsse comparsion function
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int nsse_weight;
+
+ /**
+ * profile
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int profile;
+#define FF_PROFILE_UNKNOWN -99
+#define FF_PROFILE_RESERVED -100
+
+#define FF_PROFILE_AAC_MAIN 0
+#define FF_PROFILE_AAC_LOW 1
+#define FF_PROFILE_AAC_SSR 2
+#define FF_PROFILE_AAC_LTP 3
+#define FF_PROFILE_AAC_HE 4
+#define FF_PROFILE_AAC_HE_V2 28
+#define FF_PROFILE_AAC_LD 22
+#define FF_PROFILE_AAC_ELD 38
+
+#define FF_PROFILE_DTS 20
+#define FF_PROFILE_DTS_ES 30
+#define FF_PROFILE_DTS_96_24 40
+#define FF_PROFILE_DTS_HD_HRA 50
+#define FF_PROFILE_DTS_HD_MA 60
+
+#define FF_PROFILE_MPEG2_422 0
+#define FF_PROFILE_MPEG2_HIGH 1
+#define FF_PROFILE_MPEG2_SS 2
+#define FF_PROFILE_MPEG2_SNR_SCALABLE 3
+#define FF_PROFILE_MPEG2_MAIN 4
+#define FF_PROFILE_MPEG2_SIMPLE 5
+
+#define FF_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag
+#define FF_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag
+
+#define FF_PROFILE_H264_BASELINE 66
+#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
+#define FF_PROFILE_H264_MAIN 77
+#define FF_PROFILE_H264_EXTENDED 88
+#define FF_PROFILE_H264_HIGH 100
+#define FF_PROFILE_H264_HIGH_10 110
+#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_HIGH_422 122
+#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_HIGH_444 144
+#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244
+#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA)
+#define FF_PROFILE_H264_CAVLC_444 44
+
+#define FF_PROFILE_VC1_SIMPLE 0
+#define FF_PROFILE_VC1_MAIN 1
+#define FF_PROFILE_VC1_COMPLEX 2
+#define FF_PROFILE_VC1_ADVANCED 3
+
+#define FF_PROFILE_MPEG4_SIMPLE 0
+#define FF_PROFILE_MPEG4_SIMPLE_SCALABLE 1
+#define FF_PROFILE_MPEG4_CORE 2
+#define FF_PROFILE_MPEG4_MAIN 3
+#define FF_PROFILE_MPEG4_N_BIT 4
+#define FF_PROFILE_MPEG4_SCALABLE_TEXTURE 5
+#define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION 6
+#define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE 7
+#define FF_PROFILE_MPEG4_HYBRID 8
+#define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME 9
+#define FF_PROFILE_MPEG4_CORE_SCALABLE 10
+#define FF_PROFILE_MPEG4_ADVANCED_CODING 11
+#define FF_PROFILE_MPEG4_ADVANCED_CORE 12
+#define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13
+#define FF_PROFILE_MPEG4_SIMPLE_STUDIO 14
+#define FF_PROFILE_MPEG4_ADVANCED_SIMPLE 15
+
+ /**
+ * level
+ * - encoding: Set by user.
+ * - decoding: Set by libavcodec.
+ */
+ int level;
+#define FF_LEVEL_UNKNOWN -99
+
+ /**
+ *
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ enum AVDiscard skip_loop_filter;
+
+ /**
+ *
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ enum AVDiscard skip_idct;
+
+ /**
+ *
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ enum AVDiscard skip_frame;
+
+ /**
+ * Header containing style information for text subtitles.
+ * For SUBTITLE_ASS subtitle type, it should contain the whole ASS
+ * [Script Info] and [V4+ Styles] section, plus the [Events] line and
+ * the Format line following. It shouldn't include any Dialogue line.
+ * - encoding: Set/allocated/freed by user (before avcodec_open2())
+ * - decoding: Set/allocated/freed by libavcodec (by avcodec_open2())
+ */
+ uint8_t *subtitle_header;
+ int subtitle_header_size;
+
+ /**
+ * Simulates errors in the bitstream to test error concealment.
+ * - encoding: Set by user.
+ * - decoding: unused
+ */
+ int error_rate;
+
+ /**
+ * Current packet as passed into the decoder, to avoid having
+ * to pass the packet into every function. Currently only valid
+ * inside lavc and get/release_buffer callbacks.
+ * - decoding: set by avcodec_decode_*, read by get_buffer() for setting pkt_pts
+ * - encoding: unused
+ */
+ AVPacket *pkt;
+
+ /**
+ * VBV delay coded in the last frame (in periods of a 27 MHz clock).
+ * Used for compliant TS muxing.
+ * - encoding: Set by libavcodec.
+ * - decoding: unused.
+ */
+ uint64_t vbv_delay;
+
+ /**
+ * Timebase in which pkt_dts/pts and AVPacket.dts/pts are.
+ * Code outside libavcodec should access this field using:
+ * av_codec_{get,set}_pkt_timebase(avctx)
+ * - encoding unused.
+ * - decodimg set by user
+ */
+ AVRational pkt_timebase;
+
+ /**
+ * AVCodecDescriptor
+ * Code outside libavcodec should access this field using:
+ * av_codec_{get,set}_codec_descriptor(avctx)
+ * - encoding: unused.
+ * - decoding: set by libavcodec.
+ */
+ const AVCodecDescriptor *codec_descriptor;
+
+ /**
+ * Current statistics for PTS correction.
+ * - decoding: maintained and used by libavcodec, not intended to be used by user apps
+ * - encoding: unused
+ */
+ int64_t pts_correction_num_faulty_pts; /// Number of incorrect PTS values so far
+ int64_t pts_correction_num_faulty_dts; /// Number of incorrect DTS values so far
+ int64_t pts_correction_last_pts; /// PTS of the last frame
+ int64_t pts_correction_last_dts; /// DTS of the last frame
+
+ /**
+ * Current frame metadata.
+ * - decoding: maintained and used by libavcodec, not intended to be used by user apps
+ * - encoding: unused
+ */
+ AVDictionary *metadata;
+
+ /**
+ * Character encoding of the input subtitles file.
+ * - decoding: set by user
+ * - encoding: unused
+ */
+ char *sub_charenc;
+
+ /**
+ * Subtitles character encoding mode. Formats or codecs might be adjusting
+ * this setting (if they are doing the conversion themselves for instance).
+ * - decoding: set by libavcodec
+ * - encoding: unused
+ */
+ int sub_charenc_mode;
+#define FF_SUB_CHARENC_MODE_DO_NOTHING -1 ///< do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for instance)
+#define FF_SUB_CHARENC_MODE_AUTOMATIC 0 ///< libavcodec will select the mode itself
+#define FF_SUB_CHARENC_MODE_PRE_DECODER 1 ///< the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv
+} AVCodecContext;
+
+AVRational av_codec_get_pkt_timebase (const AVCodecContext *avctx);
+void av_codec_set_pkt_timebase (AVCodecContext *avctx, AVRational val);
+
+const AVCodecDescriptor *av_codec_get_codec_descriptor(const AVCodecContext *avctx);
+void av_codec_set_codec_descriptor(AVCodecContext *avctx, const AVCodecDescriptor *desc);
+
+/**
+ * AVProfile.
+ */
+typedef struct AVProfile {
+ int profile;
+ const char *name; ///< short name for the profile
+} AVProfile;
+
+typedef struct AVCodecDefault AVCodecDefault;
+
+struct AVSubtitle;
+
+/**
+ * AVCodec.
+ */
+typedef struct AVCodec {
+ /**
+ * Name of the codec implementation.
+ * The name is globally unique among encoders and among decoders (but an
+ * encoder and a decoder can share the same name).
+ * This is the primary way to find a codec from the user perspective.
+ */
+ const char *name;
+ /**
+ * Descriptive name for the codec, meant to be more human readable than name.
+ * You should use the NULL_IF_CONFIG_SMALL() macro to define it.
+ */
+ const char *long_name;
+ enum AVMediaType type;
+ enum AVCodecID id;
+ /**
+ * Codec capabilities.
+ * see CODEC_CAP_*
+ */
+ int capabilities;
+ const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
+ const enum AVPixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
+ const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
+ const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
+ const uint64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
+ uint8_t max_lowres; ///< maximum value for lowres supported by the decoder
+ const AVClass *priv_class; ///< AVClass for the private context
+ const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN}
+
+ /*****************************************************************
+ * No fields below this line are part of the public API. They
+ * may not be used outside of libavcodec and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+ int priv_data_size;
+ struct AVCodec *next;
+ /**
+ * @name Frame-level threading support functions
+ * @{
+ */
+ /**
+ * If defined, called on thread contexts when they are created.
+ * If the codec allocates writable tables in init(), re-allocate them here.
+ * priv_data will be set to a copy of the original.
+ */
+ int (*init_thread_copy)(AVCodecContext *);
+ /**
+ * Copy necessary context variables from a previous thread context to the current one.
+ * If not defined, the next thread will start automatically; otherwise, the codec
+ * must call ff_thread_finish_setup().
+ *
+ * dst and src will (rarely) point to the same context, in which case memcpy should be skipped.
+ */
+ int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src);
+ /** @} */
+
+ /**
+ * Private codec-specific defaults.
+ */
+ const AVCodecDefault *defaults;
+
+ /**
+ * Initialize codec static data, called from avcodec_register().
+ */
+ void (*init_static_data)(struct AVCodec *codec);
+
+ int (*init)(AVCodecContext *);
+ int (*encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size,
+ const struct AVSubtitle *sub);
+ /**
+ * Encode data to an AVPacket.
+ *
+ * @param avctx codec context
+ * @param avpkt output AVPacket (may contain a user-provided buffer)
+ * @param[in] frame AVFrame containing the raw data to be encoded
+ * @param[out] got_packet_ptr encoder sets to 0 or 1 to indicate that a
+ * non-empty packet was returned in avpkt.
+ * @return 0 on success, negative error code on failure
+ */
+ int (*encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame,
+ int *got_packet_ptr);
+ int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt);
+ int (*close)(AVCodecContext *);
+ /**
+ * Flush buffers.
+ * Will be called when seeking
+ */
+ void (*flush)(AVCodecContext *);
+} AVCodec;
+
+/**
+ * AVHWAccel.
+ */
+typedef struct AVHWAccel {
+ /**
+ * Name of the hardware accelerated codec.
+ * The name is globally unique among encoders and among decoders (but an
+ * encoder and a decoder can share the same name).
+ */
+ const char *name;
+
+ /**
+ * Type of codec implemented by the hardware accelerator.
+ *
+ * See AVMEDIA_TYPE_xxx
+ */
+ enum AVMediaType type;
+
+ /**
+ * Codec implemented by the hardware accelerator.
+ *
+ * See AV_CODEC_ID_xxx
+ */
+ enum AVCodecID id;
+
+ /**
+ * Supported pixel format.
+ *
+ * Only hardware accelerated formats are supported here.
+ */
+ enum AVPixelFormat pix_fmt;
+
+ /**
+ * Hardware accelerated codec capabilities.
+ * see FF_HWACCEL_CODEC_CAP_*
+ */
+ int capabilities;
+
+ struct AVHWAccel *next;
+
+ /**
+ * Called at the beginning of each frame or field picture.
+ *
+ * Meaningful frame information (codec specific) is guaranteed to
+ * be parsed at this point. This function is mandatory.
+ *
+ * Note that buf can be NULL along with buf_size set to 0.
+ * Otherwise, this means the whole frame is available at this point.
+ *
+ * @param avctx the codec context
+ * @param buf the frame data buffer base
+ * @param buf_size the size of the frame in bytes
+ * @return zero if successful, a negative value otherwise
+ */
+ int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
+
+ /**
+ * Callback for each slice.
+ *
+ * Meaningful slice information (codec specific) is guaranteed to
+ * be parsed at this point. This function is mandatory.
+ *
+ * @param avctx the codec context
+ * @param buf the slice data buffer base
+ * @param buf_size the size of the slice in bytes
+ * @return zero if successful, a negative value otherwise
+ */
+ int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);
+
+ /**
+ * Called at the end of each frame or field picture.
+ *
+ * The whole picture is parsed at this point and can now be sent
+ * to the hardware accelerator. This function is mandatory.
+ *
+ * @param avctx the codec context
+ * @return zero if successful, a negative value otherwise
+ */
+ int (*end_frame)(AVCodecContext *avctx);
+
+ /**
+ * Size of HW accelerator private data.
+ *
+ * Private data is allocated with av_mallocz() before
+ * AVCodecContext.get_buffer() and deallocated after
+ * AVCodecContext.release_buffer().
+ */
+ int priv_data_size;
+} AVHWAccel;
+
+/**
+ * @defgroup lavc_picture AVPicture
+ *
+ * Functions for working with AVPicture
+ * @{
+ */
+
+/**
+ * four components are given, that's all.
+ * the last component is alpha
+ */
+typedef struct AVPicture {
+ uint8_t *data[AV_NUM_DATA_POINTERS];
+ int linesize[AV_NUM_DATA_POINTERS]; ///< number of bytes per line
+} AVPicture;
+
+/**
+ * @}
+ */
+
+enum AVSubtitleType {
+ SUBTITLE_NONE,
+
+ SUBTITLE_BITMAP, ///< A bitmap, pict will be set
+
+ /**
+ * Plain text, the text field must be set by the decoder and is
+ * authoritative. ass and pict fields may contain approximations.
+ */
+ SUBTITLE_TEXT,
+
+ /**
+ * Formatted text, the ass field must be set by the decoder and is
+ * authoritative. pict and text fields may contain approximations.
+ */
+ SUBTITLE_ASS,
+};
+
+#define AV_SUBTITLE_FLAG_FORCED 0x00000001
+
+typedef struct AVSubtitleRect {
+ int x; ///< top left corner of pict, undefined when pict is not set
+ int y; ///< top left corner of pict, undefined when pict is not set
+ int w; ///< width of pict, undefined when pict is not set
+ int h; ///< height of pict, undefined when pict is not set
+ int nb_colors; ///< number of colors in pict, undefined when pict is not set
+
+ /**
+ * data+linesize for the bitmap of this subtitle.
+ * can be set for text/ass as well once they where rendered
+ */
+ AVPicture pict;
+ enum AVSubtitleType type;
+
+ char *text; ///< 0 terminated plain UTF-8 text
+
+ /**
+ * 0 terminated ASS/SSA compatible event line.
+ * The presentation of this is unaffected by the other values in this
+ * struct.
+ */
+ char *ass;
+
+ int flags;
+} AVSubtitleRect;
+
+typedef struct AVSubtitle {
+ uint16_t format; /* 0 = graphics */
+ uint32_t start_display_time; /* relative to packet pts, in ms */
+ uint32_t end_display_time; /* relative to packet pts, in ms */
+ unsigned num_rects;
+ AVSubtitleRect **rects;
+ int64_t pts; ///< Same as packet pts, in AV_TIME_BASE
+} AVSubtitle;
+
+/**
+ * If c is NULL, returns the first registered codec,
+ * if c is non-NULL, returns the next registered codec after c,
+ * or NULL if c is the last one.
+ */
+AVCodec *av_codec_next(const AVCodec *c);
+
+/**
+ * Return the LIBAVCODEC_VERSION_INT constant.
+ */
+unsigned avcodec_version(void);
+
+/**
+ * Return the libavcodec build-time configuration.
+ */
+const char *avcodec_configuration(void);
+
+/**
+ * Return the libavcodec license.
+ */
+const char *avcodec_license(void);
+
+/**
+ * Register the codec codec and initialize libavcodec.
+ *
+ * @warning either this function or avcodec_register_all() must be called
+ * before any other libavcodec functions.
+ *
+ * @see avcodec_register_all()
+ */
+void avcodec_register(AVCodec *codec);
+
+/**
+ * Register all the codecs, parsers and bitstream filters which were enabled at
+ * configuration time. If you do not call this function you can select exactly
+ * which formats you want to support, by using the individual registration
+ * functions.
+ *
+ * @see avcodec_register
+ * @see av_register_codec_parser
+ * @see av_register_bitstream_filter
+ */
+void avcodec_register_all(void);
+
+
+#if FF_API_ALLOC_CONTEXT
+/**
+ * Allocate an AVCodecContext and set its fields to default values. The
+ * resulting struct can be deallocated by simply calling av_free().
+ *
+ * @return An AVCodecContext filled with default values or NULL on failure.
+ * @see avcodec_get_context_defaults
+ *
+ * @deprecated use avcodec_alloc_context3()
+ */
+attribute_deprecated
+AVCodecContext *avcodec_alloc_context(void);
+
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ * we WILL change its arguments and name a few times! */
+attribute_deprecated
+AVCodecContext *avcodec_alloc_context2(enum AVMediaType);
+
+/**
+ * Set the fields of the given AVCodecContext to default values.
+ *
+ * @param s The AVCodecContext of which the fields should be set to default values.
+ * @deprecated use avcodec_get_context_defaults3
+ */
+attribute_deprecated
+void avcodec_get_context_defaults(AVCodecContext *s);
+
+/** THIS FUNCTION IS NOT YET PART OF THE PUBLIC API!
+ * we WILL change its arguments and name a few times! */
+attribute_deprecated
+void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType);
+#endif
+
+/**
+ * Allocate an AVCodecContext and set its fields to default values. The
+ * resulting struct can be deallocated by calling avcodec_close() on it followed
+ * by av_free().
+ *
+ * @param codec if non-NULL, allocate private data and initialize defaults
+ * for the given codec. It is illegal to then call avcodec_open2()
+ * with a different codec.
+ * If NULL, then the codec-specific defaults won't be initialized,
+ * which may result in suboptimal default settings (this is
+ * important mainly for encoders, e.g. libx264).
+ *
+ * @return An AVCodecContext filled with default values or NULL on failure.
+ * @see avcodec_get_context_defaults
+ */
+AVCodecContext *avcodec_alloc_context3(const AVCodec *codec);
+
+/**
+ * Set the fields of the given AVCodecContext to default values corresponding
+ * to the given codec (defaults may be codec-dependent).
+ *
+ * Do not call this function if a non-NULL codec has been passed
+ * to avcodec_alloc_context3() that allocated this AVCodecContext.
+ * If codec is non-NULL, it is illegal to call avcodec_open2() with a
+ * different codec on this AVCodecContext.
+ */
+int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec);
+
+/**
+ * Get the AVClass for AVCodecContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_class(void);
+
+/**
+ * Get the AVClass for AVFrame. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_frame_class(void);
+
+/**
+ * Get the AVClass for AVSubtitleRect. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avcodec_get_subtitle_rect_class(void);
+
+/**
+ * Copy the settings of the source AVCodecContext into the destination
+ * AVCodecContext. The resulting destination codec context will be
+ * unopened, i.e. you are required to call avcodec_open2() before you
+ * can use this AVCodecContext to decode/encode video/audio data.
+ *
+ * @param dest target codec context, should be initialized with
+ * avcodec_alloc_context3(), but otherwise uninitialized
+ * @param src source codec context
+ * @return AVERROR() on error (e.g. memory allocation error), 0 on success
+ */
+int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);
+
+/**
+ * Allocate an AVFrame and set its fields to default values. The resulting
+ * struct must be freed using avcodec_free_frame().
+ *
+ * @return An AVFrame filled with default values or NULL on failure.
+ * @see avcodec_get_frame_defaults
+ */
+AVFrame *avcodec_alloc_frame(void);
+
+/**
+ * Set the fields of the given AVFrame to default values.
+ *
+ * @param frame The AVFrame of which the fields should be set to default values.
+ */
+void avcodec_get_frame_defaults(AVFrame *frame);
+
+/**
+ * Free the frame and any dynamically allocated objects in it,
+ * e.g. extended_data.
+ *
+ * @param frame frame to be freed. The pointer will be set to NULL.
+ *
+ * @warning this function does NOT free the data buffers themselves
+ * (it does not know how, since they might have been allocated with
+ * a custom get_buffer()).
+ */
+void avcodec_free_frame(AVFrame **frame);
+
+#if FF_API_AVCODEC_OPEN
+/**
+ * Initialize the AVCodecContext to use the given AVCodec. Prior to using this
+ * function the context has to be allocated.
+ *
+ * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
+ * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
+ * retrieving a codec.
+ *
+ * @warning This function is not thread safe!
+ *
+ * @code
+ * avcodec_register_all();
+ * codec = avcodec_find_decoder(AV_CODEC_ID_H264);
+ * if (!codec)
+ * exit(1);
+ *
+ * context = avcodec_alloc_context3(codec);
+ *
+ * if (avcodec_open(context, codec) < 0)
+ * exit(1);
+ * @endcode
+ *
+ * @param avctx The context which will be set up to use the given codec.
+ * @param codec The codec to use within the context.
+ * @return zero on success, a negative value on error
+ * @see avcodec_alloc_context3, avcodec_find_decoder, avcodec_find_encoder, avcodec_close
+ *
+ * @deprecated use avcodec_open2
+ */
+attribute_deprecated
+int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
+#endif
+
+/**
+ * Initialize the AVCodecContext to use the given AVCodec. Prior to using this
+ * function the context has to be allocated with avcodec_alloc_context3().
+ *
+ * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(),
+ * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for
+ * retrieving a codec.
+ *
+ * @warning This function is not thread safe!
+ *
+ * @code
+ * avcodec_register_all();
+ * av_dict_set(&opts, "b", "2.5M", 0);
+ * codec = avcodec_find_decoder(AV_CODEC_ID_H264);
+ * if (!codec)
+ * exit(1);
+ *
+ * context = avcodec_alloc_context3(codec);
+ *
+ * if (avcodec_open2(context, codec, opts) < 0)
+ * exit(1);
+ * @endcode
+ *
+ * @param avctx The context to initialize.
+ * @param codec The codec to open this context for. If a non-NULL codec has been
+ * previously passed to avcodec_alloc_context3() or
+ * avcodec_get_context_defaults3() for this context, then this
+ * parameter MUST be either NULL or equal to the previously passed
+ * codec.
+ * @param options A dictionary filled with AVCodecContext and codec-private options.
+ * On return this object will be filled with options that were not found.
+ *
+ * @return zero on success, a negative value on error
+ * @see avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(),
+ * av_dict_set(), av_opt_find().
+ */
+int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options);
+
+/**
+ * Close a given AVCodecContext and free all the data associated with it
+ * (but not the AVCodecContext itself).
+ *
+ * Calling this function on an AVCodecContext that hasn't been opened will free
+ * the codec-specific data allocated in avcodec_alloc_context3() /
+ * avcodec_get_context_defaults3() with a non-NULL codec. Subsequent calls will
+ * do nothing.
+ */
+int avcodec_close(AVCodecContext *avctx);
+
+/**
+ * Free all allocated data in the given subtitle struct.
+ *
+ * @param sub AVSubtitle to free.
+ */
+void avsubtitle_free(AVSubtitle *sub);
+
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup lavc_packet
+ * @{
+ */
+
+/**
+ * Default packet destructor.
+ */
+void av_destruct_packet(AVPacket *pkt);
+
+/**
+ * Initialize optional fields of a packet with default values.
+ *
+ * Note, this does not touch the data and size members, which have to be
+ * initialized separately.
+ *
+ * @param pkt packet
+ */
+void av_init_packet(AVPacket *pkt);
+
+/**
+ * Allocate the payload of a packet and initialize its fields with
+ * default values.
+ *
+ * @param pkt packet
+ * @param size wanted payload size
+ * @return 0 if OK, AVERROR_xxx otherwise
+ */
+int av_new_packet(AVPacket *pkt, int size);
+
+/**
+ * Reduce packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param size new size
+ */
+void av_shrink_packet(AVPacket *pkt, int size);
+
+/**
+ * Increase packet size, correctly zeroing padding
+ *
+ * @param pkt packet
+ * @param grow_by number of bytes by which to increase the size of the packet
+ */
+int av_grow_packet(AVPacket *pkt, int grow_by);
+
+/**
+ * @warning This is a hack - the packet memory allocation stuff is broken. The
+ * packet is allocated if it was not really allocated.
+ */
+int av_dup_packet(AVPacket *pkt);
+
+/**
+ * Copy packet, including contents
+ *
+ * @return 0 on success, negative AVERROR on fail
+ */
+int av_copy_packet(AVPacket *dst, AVPacket *src);
+
+/**
+ * Free a packet.
+ *
+ * @param pkt packet to free
+ */
+void av_free_packet(AVPacket *pkt);
+
+/**
+ * Allocate new information of a packet.
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size side information size
+ * @return pointer to fresh allocated data or NULL otherwise
+ */
+uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+ int size);
+
+/**
+ * Shrink the already allocated side data buffer
+ *
+ * @param pkt packet
+ * @param type side information type
+ * @param size new side information size
+ * @return 0 on success, < 0 on failure
+ */
+int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+ int size);
+
+/**
+ * Get side information from packet.
+ *
+ * @param pkt packet
+ * @param type desired side information type
+ * @param size pointer for side information size to store (optional)
+ * @return pointer to data if present or NULL otherwise
+ */
+uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
+ int *size);
+
+int av_packet_merge_side_data(AVPacket *pkt);
+
+int av_packet_split_side_data(AVPacket *pkt);
+
+
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup lavc_decoding
+ * @{
+ */
+
+/**
+ * Find a registered decoder with a matching codec ID.
+ *
+ * @param id AVCodecID of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_decoder(enum AVCodecID id);
+
+/**
+ * Find a registered decoder with the specified name.
+ *
+ * @param name name of the requested decoder
+ * @return A decoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_decoder_by_name(const char *name);
+
+int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
+void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
+int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
+
+/**
+ * Return the amount of padding in pixels which the get_buffer callback must
+ * provide around the edge of the image for codecs which do not have the
+ * CODEC_FLAG_EMU_EDGE flag.
+ *
+ * @return Required padding in pixels.
+ */
+unsigned avcodec_get_edge_width(void);
+
+/**
+ * Modify width and height values so that they will result in a memory
+ * buffer that is acceptable for the codec if you do not use any horizontal
+ * padding.
+ *
+ * May only be used if a codec with CODEC_CAP_DR1 has been opened.
+ * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased
+ * according to avcodec_get_edge_width() before.
+ */
+void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
+
+/**
+ * Modify width and height values so that they will result in a memory
+ * buffer that is acceptable for the codec if you also ensure that all
+ * line sizes are a multiple of the respective linesize_align[i].
+ *
+ * May only be used if a codec with CODEC_CAP_DR1 has been opened.
+ * If CODEC_FLAG_EMU_EDGE is not set, the dimensions must have been increased
+ * according to avcodec_get_edge_width() before.
+ */
+void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
+ int linesize_align[AV_NUM_DATA_POINTERS]);
+
+#if FF_API_OLD_DECODE_AUDIO
+/**
+ * Wrapper function which calls avcodec_decode_audio4.
+ *
+ * @deprecated Use avcodec_decode_audio4 instead.
+ *
+ * Decode the audio frame of size avpkt->size from avpkt->data into samples.
+ * Some decoders may support multiple frames in a single AVPacket, such
+ * decoders would then just decode the first frame. In this case,
+ * avcodec_decode_audio3 has to be called again with an AVPacket that contains
+ * the remaining data in order to decode the second frame etc.
+ * If no frame
+ * could be outputted, frame_size_ptr is zero. Otherwise, it is the
+ * decompressed frame size in bytes.
+ *
+ * @warning You must set frame_size_ptr to the allocated size of the
+ * output buffer before calling avcodec_decode_audio3().
+ *
+ * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
+ * the actual read bytes because some optimized bitstream readers read 32 or 64
+ * bits at once and could read over the end.
+ *
+ * @warning The end of the input buffer avpkt->data should be set to 0 to ensure that
+ * no overreading happens for damaged MPEG streams.
+ *
+ * @warning You must not provide a custom get_buffer() when using
+ * avcodec_decode_audio3(). Doing so will override it with
+ * avcodec_default_get_buffer. Use avcodec_decode_audio4() instead,
+ * which does allow the application to provide a custom get_buffer().
+ *
+ * @note You might have to align the input buffer avpkt->data and output buffer
+ * samples. The alignment requirements depend on the CPU: On some CPUs it isn't
+ * necessary at all, on others it won't work at all if not aligned and on others
+ * it will work but it will have an impact on performance.
+ *
+ * In practice, avpkt->data should have 4 byte alignment at minimum and
+ * samples should be 16 byte aligned unless the CPU doesn't need it
+ * (AltiVec and SSE do).
+ *
+ * @note Codecs which have the CODEC_CAP_DELAY capability set have a delay
+ * between input and output, these need to be fed with avpkt->data=NULL,
+ * avpkt->size=0 at the end to return the remaining frames.
+ *
+ * @param avctx the codec context
+ * @param[out] samples the output buffer, sample type in avctx->sample_fmt
+ * If the sample format is planar, each channel plane will
+ * be the same size, with no padding between channels.
+ * @param[in,out] frame_size_ptr the output buffer size in bytes
+ * @param[in] avpkt The input AVPacket containing the input buffer.
+ * You can create such packet with av_init_packet() and by then setting
+ * data and size, some decoders might in addition need other fields.
+ * All decoders are designed to use the least fields possible though.
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame data was decompressed (used) from the input AVPacket.
+ */
+attribute_deprecated int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
+ int *frame_size_ptr,
+ AVPacket *avpkt);
+#endif
+
+/**
+ * Decode the audio frame of size avpkt->size from avpkt->data into frame.
+ *
+ * Some decoders may support multiple frames in a single AVPacket. Such
+ * decoders would then just decode the first frame. In this case,
+ * avcodec_decode_audio4 has to be called again with an AVPacket containing
+ * the remaining data in order to decode the second frame, etc...
+ * Even if no frames are returned, the packet needs to be fed to the decoder
+ * with remaining data until it is completely consumed or an error occurs.
+ *
+ * @warning The input buffer, avpkt->data must be FF_INPUT_BUFFER_PADDING_SIZE
+ * larger than the actual read bytes because some optimized bitstream
+ * readers read 32 or 64 bits at once and could read over the end.
+ *
+ * @note You might have to align the input buffer. The alignment requirements
+ * depend on the CPU and the decoder.
+ *
+ * @param avctx the codec context
+ * @param[out] frame The AVFrame in which to store decoded audio samples.
+ * Decoders request a buffer of a particular size by setting
+ * AVFrame.nb_samples prior to calling get_buffer(). The
+ * decoder may, however, only utilize part of the buffer by
+ * setting AVFrame.nb_samples to a smaller value in the
+ * output frame.
+ * @param[out] got_frame_ptr Zero if no frame could be decoded, otherwise it is
+ * non-zero.
+ * @param[in] avpkt The input AVPacket containing the input buffer.
+ * At least avpkt->data and avpkt->size should be set. Some
+ * decoders might also require additional fields to be set.
+ * @return A negative error code is returned if an error occurred during
+ * decoding, otherwise the number of bytes consumed from the input
+ * AVPacket is returned.
+ */
+int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame,
+ int *got_frame_ptr, const AVPacket *avpkt);
+
+/**
+ * Decode the video frame of size avpkt->size from avpkt->data into picture.
+ * Some decoders may support multiple frames in a single AVPacket, such
+ * decoders would then just decode the first frame.
+ *
+ * @warning The input buffer must be FF_INPUT_BUFFER_PADDING_SIZE larger than
+ * the actual read bytes because some optimized bitstream readers read 32 or 64
+ * bits at once and could read over the end.
+ *
+ * @warning The end of the input buffer buf should be set to 0 to ensure that
+ * no overreading happens for damaged MPEG streams.
+ *
+ * @note You might have to align the input buffer avpkt->data.
+ * The alignment requirements depend on the CPU: on some CPUs it isn't
+ * necessary at all, on others it won't work at all if not aligned and on others
+ * it will work but it will have an impact on performance.
+ *
+ * In practice, avpkt->data should have 4 byte alignment at minimum.
+ *
+ * @note Codecs which have the CODEC_CAP_DELAY capability set have a delay
+ * between input and output, these need to be fed with avpkt->data=NULL,
+ * avpkt->size=0 at the end to return the remaining frames.
+ *
+ * @param avctx the codec context
+ * @param[out] picture The AVFrame in which the decoded video frame will be stored.
+ * Use avcodec_alloc_frame to get an AVFrame, the codec will
+ * allocate memory for the actual bitmap.
+ * with default get/release_buffer(), the decoder frees/reuses the bitmap as it sees fit.
+ * with overridden get/release_buffer() (needs CODEC_CAP_DR1) the user decides into what buffer the decoder
+ * decodes and the decoder tells the user once it does not need the data anymore,
+ * the user app can at this point free/reuse/keep the memory as it sees fit.
+ *
+ * @param[in] avpkt The input AVpacket containing the input buffer.
+ * You can create such packet with av_init_packet() and by then setting
+ * data and size, some decoders might in addition need other fields like
+ * flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least
+ * fields possible.
+ * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero.
+ * @return On error a negative value is returned, otherwise the number of bytes
+ * used or zero if no frame could be decompressed.
+ */
+int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
+ int *got_picture_ptr,
+ const AVPacket *avpkt);
+
+/**
+ * Decode a subtitle message.
+ * Return a negative value on error, otherwise return the number of bytes used.
+ * If no subtitle could be decompressed, got_sub_ptr is zero.
+ * Otherwise, the subtitle is stored in *sub.
+ * Note that CODEC_CAP_DR1 is not available for subtitle codecs. This is for
+ * simplicity, because the performance difference is expect to be negligible
+ * and reusing a get_buffer written for video codecs would probably perform badly
+ * due to a potentially very different allocation pattern.
+ *
+ * @param avctx the codec context
+ * @param[out] sub The AVSubtitle in which the decoded subtitle will be stored, must be
+ freed with avsubtitle_free if *got_sub_ptr is set.
+ * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero.
+ * @param[in] avpkt The input AVPacket containing the input buffer.
+ */
+int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
+ int *got_sub_ptr,
+ AVPacket *avpkt);
+
+/**
+ * @defgroup lavc_parsing Frame parsing
+ * @{
+ */
+
+typedef struct AVCodecParserContext {
+ void *priv_data;
+ struct AVCodecParser *parser;
+ int64_t frame_offset; /* offset of the current frame */
+ int64_t cur_offset; /* current offset
+ (incremented by each av_parser_parse()) */
+ int64_t next_frame_offset; /* offset of the next frame */
+ /* video info */
+ int pict_type; /* XXX: Put it back in AVCodecContext. */
+ /**
+ * This field is used for proper frame duration computation in lavf.
+ * It signals, how much longer the frame duration of the current frame
+ * is compared to normal frame duration.
+ *
+ * frame_duration = (1 + repeat_pict) * time_base
+ *
+ * It is used by codecs like H.264 to display telecined material.
+ */
+ int repeat_pict; /* XXX: Put it back in AVCodecContext. */
+ int64_t pts; /* pts of the current frame */
+ int64_t dts; /* dts of the current frame */
+
+ /* private data */
+ int64_t last_pts;
+ int64_t last_dts;
+ int fetch_timestamp;
+
+#define AV_PARSER_PTS_NB 4
+ int cur_frame_start_index;
+ int64_t cur_frame_offset[AV_PARSER_PTS_NB];
+ int64_t cur_frame_pts[AV_PARSER_PTS_NB];
+ int64_t cur_frame_dts[AV_PARSER_PTS_NB];
+
+ int flags;
+#define PARSER_FLAG_COMPLETE_FRAMES 0x0001
+#define PARSER_FLAG_ONCE 0x0002
+/// Set if the parser has a valid file offset
+#define PARSER_FLAG_FETCHED_OFFSET 0x0004
+#define PARSER_FLAG_USE_CODEC_TS 0x1000
+
+ int64_t offset; ///< byte offset from starting packet start
+ int64_t cur_frame_end[AV_PARSER_PTS_NB];
+
+ /**
+ * Set by parser to 1 for key frames and 0 for non-key frames.
+ * It is initialized to -1, so if the parser doesn't set this flag,
+ * old-style fallback using AV_PICTURE_TYPE_I picture type as key frames
+ * will be used.
+ */
+ int key_frame;
+
+ /**
+ * Time difference in stream time base units from the pts of this
+ * packet to the point at which the output from the decoder has converged
+ * independent from the availability of previous frames. That is, the
+ * frames are virtually identical no matter if decoding started from
+ * the very first frame or from this keyframe.
+ * Is AV_NOPTS_VALUE if unknown.
+ * This field is not the display duration of the current frame.
+ * This field has no meaning if the packet does not have AV_PKT_FLAG_KEY
+ * set.
+ *
+ * The purpose of this field is to allow seeking in streams that have no
+ * keyframes in the conventional sense. It corresponds to the
+ * recovery point SEI in H.264 and match_time_delta in NUT. It is also
+ * essential for some types of subtitle streams to ensure that all
+ * subtitles are correctly displayed after seeking.
+ */
+ int64_t convergence_duration;
+
+ // Timestamp generation support:
+ /**
+ * Synchronization point for start of timestamp generation.
+ *
+ * Set to >0 for sync point, 0 for no sync point and <0 for undefined
+ * (default).
+ *
+ * For example, this corresponds to presence of H.264 buffering period
+ * SEI message.
+ */
+ int dts_sync_point;
+
+ /**
+ * Offset of the current timestamp against last timestamp sync point in
+ * units of AVCodecContext.time_base.
+ *
+ * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
+ * contain a valid timestamp offset.
+ *
+ * Note that the timestamp of sync point has usually a nonzero
+ * dts_ref_dts_delta, which refers to the previous sync point. Offset of
+ * the next frame after timestamp sync point will be usually 1.
+ *
+ * For example, this corresponds to H.264 cpb_removal_delay.
+ */
+ int dts_ref_dts_delta;
+
+ /**
+ * Presentation delay of current frame in units of AVCodecContext.time_base.
+ *
+ * Set to INT_MIN when dts_sync_point unused. Otherwise, it must
+ * contain valid non-negative timestamp delta (presentation time of a frame
+ * must not lie in the past).
+ *
+ * This delay represents the difference between decoding and presentation
+ * time of the frame.
+ *
+ * For example, this corresponds to H.264 dpb_output_delay.
+ */
+ int pts_dts_delta;
+
+ /**
+ * Position of the packet in file.
+ *
+ * Analogous to cur_frame_pts/dts
+ */
+ int64_t cur_frame_pos[AV_PARSER_PTS_NB];
+
+ /**
+ * Byte position of currently parsed frame in stream.
+ */
+ int64_t pos;
+
+ /**
+ * Previous frame byte position.
+ */
+ int64_t last_pos;
+
+ /**
+ * Duration of the current frame.
+ * For audio, this is in units of 1 / AVCodecContext.sample_rate.
+ * For all other types, this is in units of AVCodecContext.time_base.
+ */
+ int duration;
+} AVCodecParserContext;
+
+typedef struct AVCodecParser {
+ int codec_ids[5]; /* several codec IDs are permitted */
+ int priv_data_size;
+ int (*parser_init)(AVCodecParserContext *s);
+ int (*parser_parse)(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ const uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size);
+ void (*parser_close)(AVCodecParserContext *s);
+ int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
+ struct AVCodecParser *next;
+} AVCodecParser;
+
+AVCodecParser *av_parser_next(AVCodecParser *c);
+
+void av_register_codec_parser(AVCodecParser *parser);
+AVCodecParserContext *av_parser_init(int codec_id);
+
+/**
+ * Parse a packet.
+ *
+ * @param s parser context.
+ * @param avctx codec context.
+ * @param poutbuf set to pointer to parsed buffer or NULL if not yet finished.
+ * @param poutbuf_size set to size of parsed buffer or zero if not yet finished.
+ * @param buf input buffer.
+ * @param buf_size input length, to signal EOF, this should be 0 (so that the last frame can be output).
+ * @param pts input presentation timestamp.
+ * @param dts input decoding timestamp.
+ * @param pos input byte position in stream.
+ * @return the number of bytes of the input bitstream used.
+ *
+ * Example:
+ * @code
+ * while(in_len){
+ * len = av_parser_parse2(myparser, AVCodecContext, &data, &size,
+ * in_data, in_len,
+ * pts, dts, pos);
+ * in_data += len;
+ * in_len -= len;
+ *
+ * if(size)
+ * decode_frame(data, size);
+ * }
+ * @endcode
+ */
+int av_parser_parse2(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size,
+ int64_t pts, int64_t dts,
+ int64_t pos);
+
+/**
+ * @return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed
+ * @deprecated use AVBitstreamFilter
+ */
+int av_parser_change(AVCodecParserContext *s,
+ AVCodecContext *avctx,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size, int keyframe);
+void av_parser_close(AVCodecParserContext *s);
+
+/**
+ * @}
+ * @}
+ */
+
+/**
+ * @addtogroup lavc_encoding
+ * @{
+ */
+
+/**
+ * Find a registered encoder with a matching codec ID.
+ *
+ * @param id AVCodecID of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_encoder(enum AVCodecID id);
+
+/**
+ * Find a registered encoder with the specified name.
+ *
+ * @param name name of the requested encoder
+ * @return An encoder if one was found, NULL otherwise.
+ */
+AVCodec *avcodec_find_encoder_by_name(const char *name);
+
+#if FF_API_OLD_ENCODE_AUDIO
+/**
+ * Encode an audio frame from samples into buf.
+ *
+ * @deprecated Use avcodec_encode_audio2 instead.
+ *
+ * @note The output buffer should be at least FF_MIN_BUFFER_SIZE bytes large.
+ * However, for codecs with avctx->frame_size equal to 0 (e.g. PCM) the user
+ * will know how much space is needed because it depends on the value passed
+ * in buf_size as described below. In that case a lower value can be used.
+ *
+ * @param avctx the codec context
+ * @param[out] buf the output buffer
+ * @param[in] buf_size the output buffer size
+ * @param[in] samples the input buffer containing the samples
+ * The number of samples read from this buffer is frame_size*channels,
+ * both of which are defined in avctx.
+ * For codecs which have avctx->frame_size equal to 0 (e.g. PCM) the number of
+ * samples read from samples is equal to:
+ * buf_size * 8 / (avctx->channels * av_get_bits_per_sample(avctx->codec_id))
+ * This also implies that av_get_bits_per_sample() must not return 0 for these
+ * codecs.
+ * @return On error a negative value is returned, on success zero or the number
+ * of bytes used to encode the data read from the input buffer.
+ */
+int attribute_deprecated avcodec_encode_audio(AVCodecContext *avctx,
+ uint8_t *buf, int buf_size,
+ const short *samples);
+#endif
+
+/**
+ * Encode a frame of audio.
+ *
+ * Takes input samples from frame and writes the next output packet, if
+ * available, to avpkt. The output packet does not necessarily contain data for
+ * the most recent frame, as encoders can delay, split, and combine input frames
+ * internally as needed.
+ *
+ * @param avctx codec context
+ * @param avpkt output AVPacket.
+ * The user can supply an output buffer by setting
+ * avpkt->data and avpkt->size prior to calling the
+ * function, but if the size of the user-provided data is not
+ * large enough, encoding will fail. If avpkt->data and
+ * avpkt->size are set, avpkt->destruct must also be set. All
+ * other AVPacket fields will be reset by the encoder using
+ * av_init_packet(). If avpkt->data is NULL, the encoder will
+ * allocate it. The encoder will set avpkt->size to the size
+ * of the output packet.
+ *
+ * If this function fails or produces no output, avpkt will be
+ * freed using av_free_packet() (i.e. avpkt->destruct will be
+ * called to free the user supplied buffer).
+ * @param[in] frame AVFrame containing the raw audio data to be encoded.
+ * May be NULL when flushing an encoder that has the
+ * CODEC_CAP_DELAY capability set.
+ * If CODEC_CAP_VARIABLE_FRAME_SIZE is set, then each frame
+ * can have any number of samples.
+ * If it is not set, frame->nb_samples must be equal to
+ * avctx->frame_size for all frames except the last.
+ * The final frame may be smaller than avctx->frame_size.
+ * @param[out] got_packet_ptr This field is set to 1 by libavcodec if the
+ * output packet is non-empty, and to 0 if it is
+ * empty. If the function returns an error, the
+ * packet can be assumed to be invalid, and the
+ * value of got_packet_ptr is undefined and should
+ * not be used.
+ * @return 0 on success, negative error code on failure
+ */
+int avcodec_encode_audio2(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr);
+
+#if FF_API_OLD_ENCODE_VIDEO
+/**
+ * @deprecated use avcodec_encode_video2() instead.
+ *
+ * Encode a video frame from pict into buf.
+ * The input picture should be
+ * stored using a specific format, namely avctx.pix_fmt.
+ *
+ * @param avctx the codec context
+ * @param[out] buf the output buffer for the bitstream of encoded frame
+ * @param[in] buf_size the size of the output buffer in bytes
+ * @param[in] pict the input picture to encode
+ * @return On error a negative value is returned, on success zero or the number
+ * of bytes used from the output buffer.
+ */
+attribute_deprecated
+int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+ const AVFrame *pict);
+#endif
+
+/**
+ * Encode a frame of video.
+ *
+ * Takes input raw video data from frame and writes the next output packet, if
+ * available, to avpkt. The output packet does not necessarily contain data for
+ * the most recent frame, as encoders can delay and reorder input frames
+ * internally as needed.
+ *
+ * @param avctx codec context
+ * @param avpkt output AVPacket.
+ * The user can supply an output buffer by setting
+ * avpkt->data and avpkt->size prior to calling the
+ * function, but if the size of the user-provided data is not
+ * large enough, encoding will fail. All other AVPacket fields
+ * will be reset by the encoder using av_init_packet(). If
+ * avpkt->data is NULL, the encoder will allocate it.
+ * The encoder will set avpkt->size to the size of the
+ * output packet. The returned data (if any) belongs to the
+ * caller, he is responsible for freeing it.
+ *
+ * If this function fails or produces no output, avpkt will be
+ * freed using av_free_packet() (i.e. avpkt->destruct will be
+ * called to free the user supplied buffer).
+ * @param[in] frame AVFrame containing the raw video data to be encoded.
+ * May be NULL when flushing an encoder that has the
+ * CODEC_CAP_DELAY capability set.
+ * @param[out] got_packet_ptr This field is set to 1 by libavcodec if the
+ * output packet is non-empty, and to 0 if it is
+ * empty. If the function returns an error, the
+ * packet can be assumed to be invalid, and the
+ * value of got_packet_ptr is undefined and should
+ * not be used.
+ * @return 0 on success, negative error code on failure
+ */
+int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr);
+
+int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
+ const AVSubtitle *sub);
+
+
+/**
+ * @}
+ */
+
+#if FF_API_AVCODEC_RESAMPLE
+/**
+ * @defgroup lavc_resample Audio resampling
+ * @ingroup libavc
+ * @deprecated use libswresample instead
+ *
+ * @{
+ */
+struct ReSampleContext;
+struct AVResampleContext;
+
+typedef struct ReSampleContext ReSampleContext;
+
+/**
+ * Initialize audio resampling context.
+ *
+ * @param output_channels number of output channels
+ * @param input_channels number of input channels
+ * @param output_rate output sample rate
+ * @param input_rate input sample rate
+ * @param sample_fmt_out requested output sample format
+ * @param sample_fmt_in input sample format
+ * @param filter_length length of each FIR filter in the filterbank relative to the cutoff frequency
+ * @param log2_phase_count log2 of the number of entries in the polyphase filterbank
+ * @param linear if 1 then the used FIR filter will be linearly interpolated
+ between the 2 closest, if 0 the closest will be used
+ * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
+ * @return allocated ReSampleContext, NULL if error occurred
+ */
+attribute_deprecated
+ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
+ int output_rate, int input_rate,
+ enum AVSampleFormat sample_fmt_out,
+ enum AVSampleFormat sample_fmt_in,
+ int filter_length, int log2_phase_count,
+ int linear, double cutoff);
+
+attribute_deprecated
+int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
+
+/**
+ * Free resample context.
+ *
+ * @param s a non-NULL pointer to a resample context previously
+ * created with av_audio_resample_init()
+ */
+attribute_deprecated
+void audio_resample_close(ReSampleContext *s);
+
+
+/**
+ * Initialize an audio resampler.
+ * Note, if either rate is not an integer then simply scale both rates up so they are.
+ * @param filter_length length of each FIR filter in the filterbank relative to the cutoff freq
+ * @param log2_phase_count log2 of the number of entries in the polyphase filterbank
+ * @param linear If 1 then the used FIR filter will be linearly interpolated
+ between the 2 closest, if 0 the closest will be used
+ * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate
+ */
+attribute_deprecated
+struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
+
+/**
+ * Resample an array of samples using a previously configured context.
+ * @param src an array of unconsumed samples
+ * @param consumed the number of samples of src which have been consumed are returned here
+ * @param src_size the number of unconsumed samples available
+ * @param dst_size the amount of space in samples available in dst
+ * @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context.
+ * @return the number of samples written in dst or -1 if an error occurred
+ */
+attribute_deprecated
+int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
+
+
+/**
+ * Compensate samplerate/timestamp drift. The compensation is done by changing
+ * the resampler parameters, so no audible clicks or similar distortions occur
+ * @param compensation_distance distance in output samples over which the compensation should be performed
+ * @param sample_delta number of output samples which should be output less
+ *
+ * example: av_resample_compensate(c, 10, 500)
+ * here instead of 510 samples only 500 samples would be output
+ *
+ * note, due to rounding the actual compensation might be slightly different,
+ * especially if the compensation_distance is large and the in_rate used during init is small
+ */
+attribute_deprecated
+void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
+attribute_deprecated
+void av_resample_close(struct AVResampleContext *c);
+
+/**
+ * @}
+ */
+#endif
+
+/**
+ * @addtogroup lavc_picture
+ * @{
+ */
+
+/**
+ * Allocate memory for a picture. Call avpicture_free() to free it.
+ *
+ * @see avpicture_fill()
+ *
+ * @param picture the picture to be filled in
+ * @param pix_fmt the format of the picture
+ * @param width the width of the picture
+ * @param height the height of the picture
+ * @return zero if successful, a negative value if not
+ */
+int avpicture_alloc(AVPicture *picture, enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * Free a picture previously allocated by avpicture_alloc().
+ * The data buffer used by the AVPicture is freed, but the AVPicture structure
+ * itself is not.
+ *
+ * @param picture the AVPicture to be freed
+ */
+void avpicture_free(AVPicture *picture);
+
+/**
+ * Fill in the AVPicture fields, always assume a linesize alignment of
+ * 1.
+ *
+ * @see av_image_fill_arrays()
+ */
+int avpicture_fill(AVPicture *picture, const uint8_t *ptr,
+ enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * Copy pixel data from an AVPicture into a buffer, always assume a
+ * linesize alignment of 1.
+ *
+ * @see av_image_copy_to_buffer()
+ */
+int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt,
+ int width, int height,
+ unsigned char *dest, int dest_size);
+
+/**
+ * Calculate the size in bytes that a picture of the given width and height
+ * would occupy if stored in the given picture format.
+ * Always assume a linesize alignment of 1.
+ *
+ * @see av_image_get_buffer_size().
+ */
+int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height);
+
+#if FF_API_DEINTERLACE
+/**
+ * deinterlace - if not supported return -1
+ *
+ * @deprecated - use yadif (in libavfilter) instead
+ */
+attribute_deprecated
+int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
+ enum AVPixelFormat pix_fmt, int width, int height);
+#endif
+/**
+ * Copy image src to dst. Wraps av_image_copy().
+ */
+void av_picture_copy(AVPicture *dst, const AVPicture *src,
+ enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * Crop image top and left side.
+ */
+int av_picture_crop(AVPicture *dst, const AVPicture *src,
+ enum AVPixelFormat pix_fmt, int top_band, int left_band);
+
+/**
+ * Pad image.
+ */
+int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum AVPixelFormat pix_fmt,
+ int padtop, int padbottom, int padleft, int padright, int *color);
+
+/**
+ * @}
+ */
+
+/**
+ * @defgroup lavc_misc Utility functions
+ * @ingroup libavc
+ *
+ * Miscellaneous utility functions related to both encoding and decoding
+ * (or neither).
+ * @{
+ */
+
+/**
+ * @defgroup lavc_misc_pixfmt Pixel formats
+ *
+ * Functions for working with pixel formats.
+ * @{
+ */
+
+/**
+ * Utility function to access log2_chroma_w log2_chroma_h from
+ * the pixel format AVPixFmtDescriptor.
+ *
+ * This function asserts that pix_fmt is valid. See av_pix_fmt_get_chroma_sub_sample
+ * for one that returns a failure code and continues in case of invalid
+ * pix_fmts.
+ *
+ * @param[in] pix_fmt the pixel format
+ * @param[out] h_shift store log2_chroma_h
+ * @param[out] v_shift store log2_chroma_w
+ *
+ * @see av_pix_fmt_get_chroma_sub_sample
+ */
+
+void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift);
+
+/**
+ * Return a value representing the fourCC code associated to the
+ * pixel format pix_fmt, or 0 if no associated fourCC code can be
+ * found.
+ */
+unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat pix_fmt);
+
+#define FF_LOSS_RESOLUTION 0x0001 /**< loss due to resolution change */
+#define FF_LOSS_DEPTH 0x0002 /**< loss due to color depth change */
+#define FF_LOSS_COLORSPACE 0x0004 /**< loss due to color space conversion */
+#define FF_LOSS_ALPHA 0x0008 /**< loss of alpha bits */
+#define FF_LOSS_COLORQUANT 0x0010 /**< loss due to color quantization */
+#define FF_LOSS_CHROMA 0x0020 /**< loss of chroma (e.g. RGB to gray conversion) */
+
+/**
+ * Compute what kind of losses will occur when converting from one specific
+ * pixel format to another.
+ * When converting from one pixel format to another, information loss may occur.
+ * For example, when converting from RGB24 to GRAY, the color information will
+ * be lost. Similarly, other losses occur when converting from some formats to
+ * other formats. These losses can involve loss of chroma, but also loss of
+ * resolution, loss of color depth, loss due to the color space conversion, loss
+ * of the alpha bits or loss due to color quantization.
+ * avcodec_get_fix_fmt_loss() informs you about the various types of losses
+ * which will occur when converting from one pixel format to another.
+ *
+ * @param[in] dst_pix_fmt destination pixel format
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @return Combination of flags informing you what kind of losses will occur
+ * (maximum loss for an invalid dst_pix_fmt).
+ */
+int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat src_pix_fmt,
+ int has_alpha);
+
+#if FF_API_FIND_BEST_PIX_FMT
+/**
+ * @deprecated use avcodec_find_best_pix_fmt_of_2() instead.
+ *
+ * Find the best pixel format to convert to given a certain source pixel
+ * format. When converting from one pixel format to another, information loss
+ * may occur. For example, when converting from RGB24 to GRAY, the color
+ * information will be lost. Similarly, other losses occur when converting from
+ * some formats to other formats. avcodec_find_best_pix_fmt() searches which of
+ * the given pixel formats should be used to suffer the least amount of loss.
+ * The pixel formats from which it chooses one, are determined by the
+ * pix_fmt_mask parameter.
+ *
+ * Note, only the first 64 pixel formats will fit in pix_fmt_mask.
+ *
+ * @code
+ * src_pix_fmt = AV_PIX_FMT_YUV420P;
+ * pix_fmt_mask = (1 << AV_PIX_FMT_YUV422P) | (1 << AV_PIX_FMT_RGB24);
+ * dst_pix_fmt = avcodec_find_best_pix_fmt(pix_fmt_mask, src_pix_fmt, alpha, &loss);
+ * @endcode
+ *
+ * @param[in] pix_fmt_mask bitmask determining which pixel format to choose from
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur.
+ * @return The best pixel format to convert to or -1 if none was found.
+ */
+attribute_deprecated
+enum AVPixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum AVPixelFormat src_pix_fmt,
+ int has_alpha, int *loss_ptr);
+#endif /* FF_API_FIND_BEST_PIX_FMT */
+
+/**
+ * Find the best pixel format to convert to given a certain source pixel
+ * format. When converting from one pixel format to another, information loss
+ * may occur. For example, when converting from RGB24 to GRAY, the color
+ * information will be lost. Similarly, other losses occur when converting from
+ * some formats to other formats. avcodec_find_best_pix_fmt_of_2() searches which of
+ * the given pixel formats should be used to suffer the least amount of loss.
+ * The pixel formats from which it chooses one, are determined by the
+ * pix_fmt_list parameter.
+ *
+ *
+ * @param[in] pix_fmt_list AV_PIX_FMT_NONE terminated array of pixel formats to choose from
+ * @param[in] src_pix_fmt source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur.
+ * @return The best pixel format to convert to or -1 if none was found.
+ */
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(enum AVPixelFormat *pix_fmt_list,
+ enum AVPixelFormat src_pix_fmt,
+ int has_alpha, int *loss_ptr);
+
+/**
+ * Find the best pixel format to convert to given a certain source pixel
+ * format and a selection of two destination pixel formats. When converting from
+ * one pixel format to another, information loss may occur. For example, when converting
+ * from RGB24 to GRAY, the color information will be lost. Similarly, other losses occur when
+ * converting from some formats to other formats. avcodec_find_best_pix_fmt_of_2() selects which of
+ * the given pixel formats should be used to suffer the least amount of loss.
+ *
+ * If one of the destination formats is AV_PIX_FMT_NONE the other pixel format (if valid) will be
+ * returned.
+ *
+ * @code
+ * src_pix_fmt = AV_PIX_FMT_YUV420P;
+ * dst_pix_fmt1= AV_PIX_FMT_RGB24;
+ * dst_pix_fmt2= AV_PIX_FMT_GRAY8;
+ * dst_pix_fmt3= AV_PIX_FMT_RGB8;
+ * loss= FF_LOSS_CHROMA; // don't care about chroma loss, so chroma loss will be ignored.
+ * dst_pix_fmt = avcodec_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, alpha, &loss);
+ * dst_pix_fmt = avcodec_find_best_pix_fmt_of_2(dst_pix_fmt, dst_pix_fmt3, src_pix_fmt, alpha, &loss);
+ * @endcode
+ *
+ * @param[in] dst_pix_fmt1 One of the two destination pixel formats to choose from
+ * @param[in] dst_pix_fmt2 The other of the two destination pixel formats to choose from
+ * @param[in] src_pix_fmt Source pixel format
+ * @param[in] has_alpha Whether the source pixel format alpha channel is used.
+ * @param[in, out] loss_ptr Combination of loss flags. In: selects which of the losses to ignore, i.e.
+ * NULL or value of zero means we care about all losses. Out: the loss
+ * that occurs when converting from src to selected dst pixel format.
+ * @return The best pixel format to convert to or -1 if none was found.
+ */
+enum AVPixelFormat avcodec_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+ enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
+
+attribute_deprecated
+#if AV_HAVE_INCOMPATIBLE_FORK_ABI
+enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat *pix_fmt_list,
+ enum AVPixelFormat src_pix_fmt,
+ int has_alpha, int *loss_ptr);
+#else
+enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2,
+ enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
+#endif
+
+
+enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat * fmt);
+
+/**
+ * @}
+ */
+
+void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
+
+/**
+ * Put a string representing the codec tag codec_tag in buf.
+ *
+ * @param buf_size size in bytes of buf
+ * @return the length of the string that would have been generated if
+ * enough space had been available, excluding the trailing null
+ */
+size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag);
+
+void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
+
+/**
+ * Return a name for the specified profile, if available.
+ *
+ * @param codec the codec that is searched for the given profile
+ * @param profile the profile value for which a name is requested
+ * @return A name for the profile if found, NULL otherwise.
+ */
+const char *av_get_profile_name(const AVCodec *codec, int profile);
+
+int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size);
+int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
+//FIXME func typedef
+
+/**
+ * Fill AVFrame audio data and linesize pointers.
+ *
+ * The buffer buf must be a preallocated buffer with a size big enough
+ * to contain the specified samples amount. The filled AVFrame data
+ * pointers will point to this buffer.
+ *
+ * AVFrame extended_data channel pointers are allocated if necessary for
+ * planar audio.
+ *
+ * @param frame the AVFrame
+ * frame->nb_samples must be set prior to calling the
+ * function. This function fills in frame->data,
+ * frame->extended_data, frame->linesize[0].
+ * @param nb_channels channel count
+ * @param sample_fmt sample format
+ * @param buf buffer to use for frame data
+ * @param buf_size size of buffer
+ * @param align plane size sample alignment (0 = default)
+ * @return >=0 on success, negative error code on failure
+ * @todo return the size in bytes required to store the samples in
+ * case of success, at the next libavutil bump
+ */
+int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
+ enum AVSampleFormat sample_fmt, const uint8_t *buf,
+ int buf_size, int align);
+
+/**
+ * Flush buffers, should be called when seeking or when switching to a different stream.
+ */
+void avcodec_flush_buffers(AVCodecContext *avctx);
+
+void avcodec_default_free_buffers(AVCodecContext *s);
+
+/**
+ * Return codec bits per sample.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ */
+int av_get_bits_per_sample(enum AVCodecID codec_id);
+
+/**
+ * Return the PCM codec associated with a sample format.
+ * @param be endianness, 0 for little, 1 for big,
+ * -1 (or anything else) for native
+ * @return AV_CODEC_ID_PCM_* or AV_CODEC_ID_NONE
+ */
+enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be);
+
+/**
+ * Return codec bits per sample.
+ * Only return non-zero if the bits per sample is exactly correct, not an
+ * approximation.
+ *
+ * @param[in] codec_id the codec
+ * @return Number of bits per sample or zero if unknown for the given codec.
+ */
+int av_get_exact_bits_per_sample(enum AVCodecID codec_id);
+
+/**
+ * Return audio frame duration.
+ *
+ * @param avctx codec context
+ * @param frame_bytes size of the frame, or 0 if unknown
+ * @return frame duration, in samples, if known. 0 if not able to
+ * determine.
+ */
+int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes);
+
+
+typedef struct AVBitStreamFilterContext {
+ void *priv_data;
+ struct AVBitStreamFilter *filter;
+ AVCodecParserContext *parser;
+ struct AVBitStreamFilterContext *next;
+} AVBitStreamFilterContext;
+
+
+typedef struct AVBitStreamFilter {
+ const char *name;
+ int priv_data_size;
+ int (*filter)(AVBitStreamFilterContext *bsfc,
+ AVCodecContext *avctx, const char *args,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size, int keyframe);
+ void (*close)(AVBitStreamFilterContext *bsfc);
+ struct AVBitStreamFilter *next;
+} AVBitStreamFilter;
+
+void av_register_bitstream_filter(AVBitStreamFilter *bsf);
+AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
+int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
+ AVCodecContext *avctx, const char *args,
+ uint8_t **poutbuf, int *poutbuf_size,
+ const uint8_t *buf, int buf_size, int keyframe);
+void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
+
+AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f);
+
+/* memory */
+
+/**
+ * Reallocate the given block if it is not large enough, otherwise do nothing.
+ *
+ * @see av_realloc
+ */
+void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Allocate a buffer, reusing the given one if large enough.
+ *
+ * Contrary to av_fast_realloc the current buffer contents might not be
+ * preserved and on error the old buffer is freed, thus no special
+ * handling to avoid memleaks is necessary.
+ *
+ * @param ptr pointer to pointer to already allocated buffer, overwritten with pointer to new buffer
+ * @param size size of the buffer *ptr points to
+ * @param min_size minimum size of *ptr buffer after returning, *ptr will be NULL and
+ * *size 0 if an error occurred.
+ */
+void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Same behaviour av_fast_malloc but the buffer has additional
+ * FF_INPUT_BUFFER_PADDING_SIZE at the end which will will always be 0.
+ *
+ * In addition the whole buffer will initially and after resizes
+ * be 0-initialized so that no uninitialized data will ever appear.
+ */
+void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Same behaviour av_fast_padded_malloc except that buffer will always
+ * be 0-initialized after call.
+ */
+void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size);
+
+/**
+ * Encode extradata length to a buffer. Used by xiph codecs.
+ *
+ * @param s buffer to write to; must be at least (v/255+1) bytes long
+ * @param v size of extradata in bytes
+ * @return number of bytes written to the buffer.
+ */
+unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
+
+/**
+ * Log a generic warning message about a missing feature. This function is
+ * intended to be used internally by FFmpeg (libavcodec, libavformat, etc.)
+ * only, and would normally not be used by applications.
+ * @param[in] avc a pointer to an arbitrary struct of which the first field is
+ * a pointer to an AVClass struct
+ * @param[in] feature string containing the name of the missing feature
+ * @param[in] want_sample indicates if samples are wanted which exhibit this feature.
+ * If want_sample is non-zero, additional verbage will be added to the log
+ * message which tells the user how to report samples to the development
+ * mailing list.
+ */
+void av_log_missing_feature(void *avc, const char *feature, int want_sample);
+
+/**
+ * Log a generic warning message asking for a sample. This function is
+ * intended to be used internally by FFmpeg (libavcodec, libavformat, etc.)
+ * only, and would normally not be used by applications.
+ * @param[in] avc a pointer to an arbitrary struct of which the first field is
+ * a pointer to an AVClass struct
+ * @param[in] msg string containing an optional message, or NULL if no message
+ */
+void av_log_ask_for_sample(void *avc, const char *msg, ...) av_printf_format(2, 3);
+
+/**
+ * Register the hardware accelerator hwaccel.
+ */
+void av_register_hwaccel(AVHWAccel *hwaccel);
+
+/**
+ * If hwaccel is NULL, returns the first registered hardware accelerator,
+ * if hwaccel is non-NULL, returns the next registered hardware accelerator
+ * after hwaccel, or NULL if hwaccel is the last one.
+ */
+AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel);
+
+
+/**
+ * Lock operation used by lockmgr
+ */
+enum AVLockOp {
+ AV_LOCK_CREATE, ///< Create a mutex
+ AV_LOCK_OBTAIN, ///< Lock the mutex
+ AV_LOCK_RELEASE, ///< Unlock the mutex
+ AV_LOCK_DESTROY, ///< Free mutex resources
+};
+
+/**
+ * Register a user provided lock manager supporting the operations
+ * specified by AVLockOp. mutex points to a (void *) where the
+ * lockmgr should store/get a pointer to a user allocated mutex. It's
+ * NULL upon AV_LOCK_CREATE and != NULL for all other ops.
+ *
+ * @param cb User defined callback. Note: FFmpeg may invoke calls to this
+ * callback during the call to av_lockmgr_register().
+ * Thus, the application must be prepared to handle that.
+ * If cb is set to NULL the lockmgr will be unregistered.
+ * Also note that during unregistration the previously registered
+ * lockmgr callback may also be invoked.
+ */
+int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
+
+/**
+ * Get the type of the given codec.
+ */
+enum AVMediaType avcodec_get_type(enum AVCodecID codec_id);
+
+/**
+ * Get the name of a codec.
+ * @return a static string identifying the codec; never NULL
+ */
+const char *avcodec_get_name(enum AVCodecID id);
+
+/**
+ * @return a positive value if s is open (i.e. avcodec_open2() was called on it
+ * with no corresponding avcodec_close()), 0 otherwise.
+ */
+int avcodec_is_open(AVCodecContext *s);
+
+/**
+ * @return a non-zero number if codec is an encoder, zero otherwise
+ */
+int av_codec_is_encoder(const AVCodec *codec);
+
+/**
+ * @return a non-zero number if codec is a decoder, zero otherwise
+ */
+int av_codec_is_decoder(const AVCodec *codec);
+
+/**
+ * @return descriptor for given codec ID or NULL if no descriptor exists.
+ */
+const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id);
+
+/**
+ * Iterate over all codec descriptors known to libavcodec.
+ *
+ * @param prev previous descriptor. NULL to get the first descriptor.
+ *
+ * @return next descriptor or NULL after the last descriptor
+ */
+const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev);
+
+/**
+ * @return codec descriptor with the given name or NULL if no such descriptor
+ * exists.
+ */
+const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_AVCODEC_H */
diff --git a/thirdparties/mac/include/libavcodec/avfft.h b/thirdparties/mac/include/libavcodec/avfft.h
new file mode 100644
index 0000000..2d20a45
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/avfft.h
@@ -0,0 +1,116 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVFFT_H
+#define AVCODEC_AVFFT_H
+
+/**
+ * @file
+ * @ingroup lavc_fft
+ * FFT functions
+ */
+
+/**
+ * @defgroup lavc_fft FFT functions
+ * @ingroup lavc_misc
+ *
+ * @{
+ */
+
+typedef float FFTSample;
+
+typedef struct FFTComplex {
+ FFTSample re, im;
+} FFTComplex;
+
+typedef struct FFTContext FFTContext;
+
+/**
+ * Set up a complex FFT.
+ * @param nbits log2 of the length of the input array
+ * @param inverse if 0 perform the forward transform, if 1 perform the inverse
+ */
+FFTContext *av_fft_init(int nbits, int inverse);
+
+/**
+ * Do the permutation needed BEFORE calling ff_fft_calc().
+ */
+void av_fft_permute(FFTContext *s, FFTComplex *z);
+
+/**
+ * Do a complex FFT with the parameters defined in av_fft_init(). The
+ * input data must be permuted before. No 1.0/sqrt(n) normalization is done.
+ */
+void av_fft_calc(FFTContext *s, FFTComplex *z);
+
+void av_fft_end(FFTContext *s);
+
+FFTContext *av_mdct_init(int nbits, int inverse, double scale);
+void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
+void av_mdct_end(FFTContext *s);
+
+/* Real Discrete Fourier Transform */
+
+enum RDFTransformType {
+ DFT_R2C,
+ IDFT_C2R,
+ IDFT_R2C,
+ DFT_C2R,
+};
+
+typedef struct RDFTContext RDFTContext;
+
+/**
+ * Set up a real FFT.
+ * @param nbits log2 of the length of the input array
+ * @param trans the type of transform
+ */
+RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans);
+void av_rdft_calc(RDFTContext *s, FFTSample *data);
+void av_rdft_end(RDFTContext *s);
+
+/* Discrete Cosine Transform */
+
+typedef struct DCTContext DCTContext;
+
+enum DCTTransformType {
+ DCT_II = 0,
+ DCT_III,
+ DCT_I,
+ DST_I,
+};
+
+/**
+ * Set up DCT.
+ * @param nbits size of the input array:
+ * (1 << nbits) for DCT-II, DCT-III and DST-I
+ * (1 << nbits) + 1 for DCT-I
+ *
+ * @note the first element of the input of DST-I is ignored
+ */
+DCTContext *av_dct_init(int nbits, enum DCTTransformType type);
+void av_dct_calc(DCTContext *s, FFTSample *data);
+void av_dct_end (DCTContext *s);
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_AVFFT_H */
diff --git a/thirdparties/mac/include/libavcodec/dxva2.h b/thirdparties/mac/include/libavcodec/dxva2.h
new file mode 100644
index 0000000..ac39e06
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/dxva2.h
@@ -0,0 +1,95 @@
+/*
+ * DXVA2 HW acceleration
+ *
+ * copyright (c) 2009 Laurent Aimar
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_DXVA_H
+#define AVCODEC_DXVA_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_dxva2
+ * Public libavcodec DXVA2 header.
+ */
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
+#undef _WIN32_WINNT
+#endif
+
+#if !defined(_WIN32_WINNT)
+#define _WIN32_WINNT 0x0600
+#endif
+
+#include <stdint.h>
+#include <d3d9.h>
+#include <dxva2api.h>
+
+/**
+ * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
+
+/**
+ * This structure is used to provides the necessary configurations and data
+ * to the DXVA2 FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ */
+struct dxva_context {
+ /**
+ * DXVA2 decoder object
+ */
+ IDirectXVideoDecoder *decoder;
+
+ /**
+ * DXVA2 configuration used to create the decoder
+ */
+ const DXVA2_ConfigPictureDecode *cfg;
+
+ /**
+ * The number of surface in the surface array
+ */
+ unsigned surface_count;
+
+ /**
+ * The array of Direct3D surfaces used to create the decoder
+ */
+ LPDIRECT3DSURFACE9 *surface;
+
+ /**
+ * A bit field configuring the workarounds needed for using the decoder
+ */
+ uint64_t workaround;
+
+ /**
+ * Private to the FFmpeg AVHWAccel implementation
+ */
+ unsigned report_id;
+};
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_DXVA_H */
diff --git a/thirdparties/mac/include/libavcodec/old_codec_ids.h b/thirdparties/mac/include/libavcodec/old_codec_ids.h
new file mode 100644
index 0000000..ded4cc7
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/old_codec_ids.h
@@ -0,0 +1,398 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OLD_CODEC_IDS_H
+#define AVCODEC_OLD_CODEC_IDS_H
+
+#include "libavutil/common.h"
+
+/*
+ * This header exists to prevent new codec IDs from being accidentally added to
+ * the deprecated list.
+ * Do not include it directly. It will be removed on next major bump
+ *
+ * Do not add new items to this list. Use the AVCodecID enum instead.
+ */
+
+ CODEC_ID_NONE = AV_CODEC_ID_NONE,
+
+ /* video codecs */
+ CODEC_ID_MPEG1VIDEO,
+ CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
+ CODEC_ID_MPEG2VIDEO_XVMC,
+ CODEC_ID_H261,
+ CODEC_ID_H263,
+ CODEC_ID_RV10,
+ CODEC_ID_RV20,
+ CODEC_ID_MJPEG,
+ CODEC_ID_MJPEGB,
+ CODEC_ID_LJPEG,
+ CODEC_ID_SP5X,
+ CODEC_ID_JPEGLS,
+ CODEC_ID_MPEG4,
+ CODEC_ID_RAWVIDEO,
+ CODEC_ID_MSMPEG4V1,
+ CODEC_ID_MSMPEG4V2,
+ CODEC_ID_MSMPEG4V3,
+ CODEC_ID_WMV1,
+ CODEC_ID_WMV2,
+ CODEC_ID_H263P,
+ CODEC_ID_H263I,
+ CODEC_ID_FLV1,
+ CODEC_ID_SVQ1,
+ CODEC_ID_SVQ3,
+ CODEC_ID_DVVIDEO,
+ CODEC_ID_HUFFYUV,
+ CODEC_ID_CYUV,
+ CODEC_ID_H264,
+ CODEC_ID_INDEO3,
+ CODEC_ID_VP3,
+ CODEC_ID_THEORA,
+ CODEC_ID_ASV1,
+ CODEC_ID_ASV2,
+ CODEC_ID_FFV1,
+ CODEC_ID_4XM,
+ CODEC_ID_VCR1,
+ CODEC_ID_CLJR,
+ CODEC_ID_MDEC,
+ CODEC_ID_ROQ,
+ CODEC_ID_INTERPLAY_VIDEO,
+ CODEC_ID_XAN_WC3,
+ CODEC_ID_XAN_WC4,
+ CODEC_ID_RPZA,
+ CODEC_ID_CINEPAK,
+ CODEC_ID_WS_VQA,
+ CODEC_ID_MSRLE,
+ CODEC_ID_MSVIDEO1,
+ CODEC_ID_IDCIN,
+ CODEC_ID_8BPS,
+ CODEC_ID_SMC,
+ CODEC_ID_FLIC,
+ CODEC_ID_TRUEMOTION1,
+ CODEC_ID_VMDVIDEO,
+ CODEC_ID_MSZH,
+ CODEC_ID_ZLIB,
+ CODEC_ID_QTRLE,
+ CODEC_ID_SNOW,
+ CODEC_ID_TSCC,
+ CODEC_ID_ULTI,
+ CODEC_ID_QDRAW,
+ CODEC_ID_VIXL,
+ CODEC_ID_QPEG,
+ CODEC_ID_PNG,
+ CODEC_ID_PPM,
+ CODEC_ID_PBM,
+ CODEC_ID_PGM,
+ CODEC_ID_PGMYUV,
+ CODEC_ID_PAM,
+ CODEC_ID_FFVHUFF,
+ CODEC_ID_RV30,
+ CODEC_ID_RV40,
+ CODEC_ID_VC1,
+ CODEC_ID_WMV3,
+ CODEC_ID_LOCO,
+ CODEC_ID_WNV1,
+ CODEC_ID_AASC,
+ CODEC_ID_INDEO2,
+ CODEC_ID_FRAPS,
+ CODEC_ID_TRUEMOTION2,
+ CODEC_ID_BMP,
+ CODEC_ID_CSCD,
+ CODEC_ID_MMVIDEO,
+ CODEC_ID_ZMBV,
+ CODEC_ID_AVS,
+ CODEC_ID_SMACKVIDEO,
+ CODEC_ID_NUV,
+ CODEC_ID_KMVC,
+ CODEC_ID_FLASHSV,
+ CODEC_ID_CAVS,
+ CODEC_ID_JPEG2000,
+ CODEC_ID_VMNC,
+ CODEC_ID_VP5,
+ CODEC_ID_VP6,
+ CODEC_ID_VP6F,
+ CODEC_ID_TARGA,
+ CODEC_ID_DSICINVIDEO,
+ CODEC_ID_TIERTEXSEQVIDEO,
+ CODEC_ID_TIFF,
+ CODEC_ID_GIF,
+ CODEC_ID_DXA,
+ CODEC_ID_DNXHD,
+ CODEC_ID_THP,
+ CODEC_ID_SGI,
+ CODEC_ID_C93,
+ CODEC_ID_BETHSOFTVID,
+ CODEC_ID_PTX,
+ CODEC_ID_TXD,
+ CODEC_ID_VP6A,
+ CODEC_ID_AMV,
+ CODEC_ID_VB,
+ CODEC_ID_PCX,
+ CODEC_ID_SUNRAST,
+ CODEC_ID_INDEO4,
+ CODEC_ID_INDEO5,
+ CODEC_ID_MIMIC,
+ CODEC_ID_RL2,
+ CODEC_ID_ESCAPE124,
+ CODEC_ID_DIRAC,
+ CODEC_ID_BFI,
+ CODEC_ID_CMV,
+ CODEC_ID_MOTIONPIXELS,
+ CODEC_ID_TGV,
+ CODEC_ID_TGQ,
+ CODEC_ID_TQI,
+ CODEC_ID_AURA,
+ CODEC_ID_AURA2,
+ CODEC_ID_V210X,
+ CODEC_ID_TMV,
+ CODEC_ID_V210,
+ CODEC_ID_DPX,
+ CODEC_ID_MAD,
+ CODEC_ID_FRWU,
+ CODEC_ID_FLASHSV2,
+ CODEC_ID_CDGRAPHICS,
+ CODEC_ID_R210,
+ CODEC_ID_ANM,
+ CODEC_ID_BINKVIDEO,
+ CODEC_ID_IFF_ILBM,
+ CODEC_ID_IFF_BYTERUN1,
+ CODEC_ID_KGV1,
+ CODEC_ID_YOP,
+ CODEC_ID_VP8,
+ CODEC_ID_PICTOR,
+ CODEC_ID_ANSI,
+ CODEC_ID_A64_MULTI,
+ CODEC_ID_A64_MULTI5,
+ CODEC_ID_R10K,
+ CODEC_ID_MXPEG,
+ CODEC_ID_LAGARITH,
+ CODEC_ID_PRORES,
+ CODEC_ID_JV,
+ CODEC_ID_DFA,
+ CODEC_ID_WMV3IMAGE,
+ CODEC_ID_VC1IMAGE,
+ CODEC_ID_UTVIDEO,
+ CODEC_ID_BMV_VIDEO,
+ CODEC_ID_VBLE,
+ CODEC_ID_DXTORY,
+ CODEC_ID_V410,
+ CODEC_ID_XWD,
+ CODEC_ID_CDXL,
+ CODEC_ID_XBM,
+ CODEC_ID_ZEROCODEC,
+ CODEC_ID_MSS1,
+ CODEC_ID_MSA1,
+ CODEC_ID_TSCC2,
+ CODEC_ID_MTS2,
+ CODEC_ID_CLLC,
+ CODEC_ID_Y41P = MKBETAG('Y','4','1','P'),
+ CODEC_ID_ESCAPE130 = MKBETAG('E','1','3','0'),
+ CODEC_ID_EXR = MKBETAG('0','E','X','R'),
+ CODEC_ID_AVRP = MKBETAG('A','V','R','P'),
+
+ CODEC_ID_G2M = MKBETAG( 0 ,'G','2','M'),
+ CODEC_ID_AVUI = MKBETAG('A','V','U','I'),
+ CODEC_ID_AYUV = MKBETAG('A','Y','U','V'),
+ CODEC_ID_V308 = MKBETAG('V','3','0','8'),
+ CODEC_ID_V408 = MKBETAG('V','4','0','8'),
+ CODEC_ID_YUV4 = MKBETAG('Y','U','V','4'),
+ CODEC_ID_SANM = MKBETAG('S','A','N','M'),
+ CODEC_ID_PAF_VIDEO = MKBETAG('P','A','F','V'),
+
+ /* various PCM "codecs" */
+ CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
+ CODEC_ID_PCM_S16LE = 0x10000,
+ CODEC_ID_PCM_S16BE,
+ CODEC_ID_PCM_U16LE,
+ CODEC_ID_PCM_U16BE,
+ CODEC_ID_PCM_S8,
+ CODEC_ID_PCM_U8,
+ CODEC_ID_PCM_MULAW,
+ CODEC_ID_PCM_ALAW,
+ CODEC_ID_PCM_S32LE,
+ CODEC_ID_PCM_S32BE,
+ CODEC_ID_PCM_U32LE,
+ CODEC_ID_PCM_U32BE,
+ CODEC_ID_PCM_S24LE,
+ CODEC_ID_PCM_S24BE,
+ CODEC_ID_PCM_U24LE,
+ CODEC_ID_PCM_U24BE,
+ CODEC_ID_PCM_S24DAUD,
+ CODEC_ID_PCM_ZORK,
+ CODEC_ID_PCM_S16LE_PLANAR,
+ CODEC_ID_PCM_DVD,
+ CODEC_ID_PCM_F32BE,
+ CODEC_ID_PCM_F32LE,
+ CODEC_ID_PCM_F64BE,
+ CODEC_ID_PCM_F64LE,
+ CODEC_ID_PCM_BLURAY,
+ CODEC_ID_PCM_LXF,
+ CODEC_ID_S302M,
+ CODEC_ID_PCM_S8_PLANAR,
+
+ /* various ADPCM codecs */
+ CODEC_ID_ADPCM_IMA_QT = 0x11000,
+ CODEC_ID_ADPCM_IMA_WAV,
+ CODEC_ID_ADPCM_IMA_DK3,
+ CODEC_ID_ADPCM_IMA_DK4,
+ CODEC_ID_ADPCM_IMA_WS,
+ CODEC_ID_ADPCM_IMA_SMJPEG,
+ CODEC_ID_ADPCM_MS,
+ CODEC_ID_ADPCM_4XM,
+ CODEC_ID_ADPCM_XA,
+ CODEC_ID_ADPCM_ADX,
+ CODEC_ID_ADPCM_EA,
+ CODEC_ID_ADPCM_G726,
+ CODEC_ID_ADPCM_CT,
+ CODEC_ID_ADPCM_SWF,
+ CODEC_ID_ADPCM_YAMAHA,
+ CODEC_ID_ADPCM_SBPRO_4,
+ CODEC_ID_ADPCM_SBPRO_3,
+ CODEC_ID_ADPCM_SBPRO_2,
+ CODEC_ID_ADPCM_THP,
+ CODEC_ID_ADPCM_IMA_AMV,
+ CODEC_ID_ADPCM_EA_R1,
+ CODEC_ID_ADPCM_EA_R3,
+ CODEC_ID_ADPCM_EA_R2,
+ CODEC_ID_ADPCM_IMA_EA_SEAD,
+ CODEC_ID_ADPCM_IMA_EA_EACS,
+ CODEC_ID_ADPCM_EA_XAS,
+ CODEC_ID_ADPCM_EA_MAXIS_XA,
+ CODEC_ID_ADPCM_IMA_ISS,
+ CODEC_ID_ADPCM_G722,
+ CODEC_ID_ADPCM_IMA_APC,
+ CODEC_ID_VIMA = MKBETAG('V','I','M','A'),
+
+ /* AMR */
+ CODEC_ID_AMR_NB = 0x12000,
+ CODEC_ID_AMR_WB,
+
+ /* RealAudio codecs*/
+ CODEC_ID_RA_144 = 0x13000,
+ CODEC_ID_RA_288,
+
+ /* various DPCM codecs */
+ CODEC_ID_ROQ_DPCM = 0x14000,
+ CODEC_ID_INTERPLAY_DPCM,
+ CODEC_ID_XAN_DPCM,
+ CODEC_ID_SOL_DPCM,
+
+ /* audio codecs */
+ CODEC_ID_MP2 = 0x15000,
+ CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
+ CODEC_ID_AAC,
+ CODEC_ID_AC3,
+ CODEC_ID_DTS,
+ CODEC_ID_VORBIS,
+ CODEC_ID_DVAUDIO,
+ CODEC_ID_WMAV1,
+ CODEC_ID_WMAV2,
+ CODEC_ID_MACE3,
+ CODEC_ID_MACE6,
+ CODEC_ID_VMDAUDIO,
+ CODEC_ID_FLAC,
+ CODEC_ID_MP3ADU,
+ CODEC_ID_MP3ON4,
+ CODEC_ID_SHORTEN,
+ CODEC_ID_ALAC,
+ CODEC_ID_WESTWOOD_SND1,
+ CODEC_ID_GSM, ///< as in Berlin toast format
+ CODEC_ID_QDM2,
+ CODEC_ID_COOK,
+ CODEC_ID_TRUESPEECH,
+ CODEC_ID_TTA,
+ CODEC_ID_SMACKAUDIO,
+ CODEC_ID_QCELP,
+ CODEC_ID_WAVPACK,
+ CODEC_ID_DSICINAUDIO,
+ CODEC_ID_IMC,
+ CODEC_ID_MUSEPACK7,
+ CODEC_ID_MLP,
+ CODEC_ID_GSM_MS, /* as found in WAV */
+ CODEC_ID_ATRAC3,
+ CODEC_ID_VOXWARE,
+ CODEC_ID_APE,
+ CODEC_ID_NELLYMOSER,
+ CODEC_ID_MUSEPACK8,
+ CODEC_ID_SPEEX,
+ CODEC_ID_WMAVOICE,
+ CODEC_ID_WMAPRO,
+ CODEC_ID_WMALOSSLESS,
+ CODEC_ID_ATRAC3P,
+ CODEC_ID_EAC3,
+ CODEC_ID_SIPR,
+ CODEC_ID_MP1,
+ CODEC_ID_TWINVQ,
+ CODEC_ID_TRUEHD,
+ CODEC_ID_MP4ALS,
+ CODEC_ID_ATRAC1,
+ CODEC_ID_BINKAUDIO_RDFT,
+ CODEC_ID_BINKAUDIO_DCT,
+ CODEC_ID_AAC_LATM,
+ CODEC_ID_QDMC,
+ CODEC_ID_CELT,
+ CODEC_ID_G723_1,
+ CODEC_ID_G729,
+ CODEC_ID_8SVX_EXP,
+ CODEC_ID_8SVX_FIB,
+ CODEC_ID_BMV_AUDIO,
+ CODEC_ID_RALF,
+ CODEC_ID_IAC,
+ CODEC_ID_ILBC,
+ CODEC_ID_FFWAVESYNTH = MKBETAG('F','F','W','S'),
+ CODEC_ID_8SVX_RAW = MKBETAG('8','S','V','X'),
+ CODEC_ID_SONIC = MKBETAG('S','O','N','C'),
+ CODEC_ID_SONIC_LS = MKBETAG('S','O','N','L'),
+ CODEC_ID_PAF_AUDIO = MKBETAG('P','A','F','A'),
+ CODEC_ID_OPUS = MKBETAG('O','P','U','S'),
+
+ /* subtitle codecs */
+ CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
+ CODEC_ID_DVD_SUBTITLE = 0x17000,
+ CODEC_ID_DVB_SUBTITLE,
+ CODEC_ID_TEXT, ///< raw UTF-8 text
+ CODEC_ID_XSUB,
+ CODEC_ID_SSA,
+ CODEC_ID_MOV_TEXT,
+ CODEC_ID_HDMV_PGS_SUBTITLE,
+ CODEC_ID_DVB_TELETEXT,
+ CODEC_ID_SRT,
+ CODEC_ID_MICRODVD = MKBETAG('m','D','V','D'),
+ CODEC_ID_EIA_608 = MKBETAG('c','6','0','8'),
+ CODEC_ID_JACOSUB = MKBETAG('J','S','U','B'),
+ CODEC_ID_SAMI = MKBETAG('S','A','M','I'),
+ CODEC_ID_REALTEXT = MKBETAG('R','T','X','T'),
+ CODEC_ID_SUBVIEWER = MKBETAG('S','u','b','V'),
+
+ /* other specific kind of codecs (generally used for attachments) */
+ CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
+ CODEC_ID_TTF = 0x18000,
+ CODEC_ID_BINTEXT = MKBETAG('B','T','X','T'),
+ CODEC_ID_XBIN = MKBETAG('X','B','I','N'),
+ CODEC_ID_IDF = MKBETAG( 0 ,'I','D','F'),
+ CODEC_ID_OTF = MKBETAG( 0 ,'O','T','F'),
+
+ CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
+
+ CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
+ * stream (only used by libavformat) */
+ CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
+ * stream (only used by libavformat) */
+ CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information.
+
+#endif /* AVCODEC_OLD_CODEC_IDS_H */
diff --git a/thirdparties/mac/include/libavcodec/opt.h b/thirdparties/mac/include/libavcodec/opt.h
new file mode 100644
index 0000000..9514759
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/opt.h
@@ -0,0 +1,55 @@
+/*
+ * AVOptions
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_OPT_H
+#define AVCODEC_OPT_H
+
+/**
+ * @file
+ * AVOptions
+ */
+
+#include "libavutil/rational.h"
+#include "avcodec.h"
+#include "libavutil/opt.h"
+
+#if FF_API_SET_STRING_OLD
+/**
+ * @see av_set_string2()
+ */
+attribute_deprecated const AVOption *av_set_string(void *obj, const char *name, const char *val);
+
+/**
+ * @return a pointer to the AVOption corresponding to the field set or
+ * NULL if no matching AVOption exists, or if the value val is not
+ * valid
+ * @see av_set_string3()
+ */
+attribute_deprecated const AVOption *av_set_string2(void *obj, const char *name, const char *val, int alloc);
+#endif
+#if FF_API_OPT_SHOW
+/**
+ * @deprecated Use av_opt_show2() instead.
+ */
+attribute_deprecated int av_opt_show(void *obj, void *av_log_obj);
+#endif
+
+#endif /* AVCODEC_OPT_H */
diff --git a/thirdparties/mac/include/libavcodec/vaapi.h b/thirdparties/mac/include/libavcodec/vaapi.h
new file mode 100644
index 0000000..815a27e
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/vaapi.h
@@ -0,0 +1,173 @@
+/*
+ * Video Acceleration API (shared data between FFmpeg and the video player)
+ * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
+ *
+ * Copyright (C) 2008-2009 Splitted-Desktop Systems
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VAAPI_H
+#define AVCODEC_VAAPI_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_vaapi
+ * Public libavcodec VA API header.
+ */
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavc_codec_hwaccel_vaapi VA API Decoding
+ * @ingroup lavc_codec_hwaccel
+ * @{
+ */
+
+/**
+ * This structure is used to share data between the FFmpeg library and
+ * the client video application.
+ * This shall be zero-allocated and available as
+ * AVCodecContext.hwaccel_context. All user members can be set once
+ * during initialization or through each AVCodecContext.get_buffer()
+ * function call. In any case, they must be valid prior to calling
+ * decoding functions.
+ */
+struct vaapi_context {
+ /**
+ * Window system dependent data
+ *
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ void *display;
+
+ /**
+ * Configuration ID
+ *
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ uint32_t config_id;
+
+ /**
+ * Context ID (video decode pipeline)
+ *
+ * - encoding: unused
+ * - decoding: Set by user
+ */
+ uint32_t context_id;
+
+ /**
+ * VAPictureParameterBuffer ID
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t pic_param_buf_id;
+
+ /**
+ * VAIQMatrixBuffer ID
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t iq_matrix_buf_id;
+
+ /**
+ * VABitPlaneBuffer ID (for VC-1 decoding)
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t bitplane_buf_id;
+
+ /**
+ * Slice parameter/data buffer IDs
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t *slice_buf_ids;
+
+ /**
+ * Number of effective slice buffer IDs to send to the HW
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int n_slice_buf_ids;
+
+ /**
+ * Size of pre-allocated slice_buf_ids
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_buf_ids_alloc;
+
+ /**
+ * Pointer to VASliceParameterBuffers
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ void *slice_params;
+
+ /**
+ * Size of a VASliceParameterBuffer element
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_param_size;
+
+ /**
+ * Size of pre-allocated slice_params
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_params_alloc;
+
+ /**
+ * Number of slices currently filled in
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ unsigned int slice_count;
+
+ /**
+ * Pointer to slice data buffer base
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ const uint8_t *slice_data;
+
+ /**
+ * Current size of slice data
+ *
+ * - encoding: unused
+ * - decoding: Set by libavcodec
+ */
+ uint32_t slice_data_size;
+};
+
+/* @} */
+
+#endif /* AVCODEC_VAAPI_H */
diff --git a/thirdparties/mac/include/libavcodec/vda.h b/thirdparties/mac/include/libavcodec/vda.h
new file mode 100644
index 0000000..de7070e
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/vda.h
@@ -0,0 +1,226 @@
+/*
+ * VDA HW acceleration
+ *
+ * copyright (c) 2011 Sebastien Zwickert
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VDA_H
+#define AVCODEC_VDA_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_vda
+ * Public libavcodec VDA header.
+ */
+
+#include <stdint.h>
+
+// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
+// http://openradar.appspot.com/8026390
+#undef __GNUC_STDC_INLINE__
+
+#define Picture QuickdrawPicture
+#include <VideoDecodeAcceleration/VDADecoder.h>
+#undef Picture
+
+#include "libavcodec/version.h"
+
+#if FF_API_VDA_ASYNC
+#include <pthread.h>
+#endif
+
+/**
+ * @defgroup lavc_codec_hwaccel_vda VDA
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+#if FF_API_VDA_ASYNC
+/**
+ * This structure is used to store decoded frame information and data.
+ *
+ * @deprecated Use synchronous decoding mode.
+ */
+typedef struct {
+ /**
+ * The PTS of the frame.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ int64_t pts;
+
+ /**
+ * The CoreVideo buffer that contains the decoded data.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ CVPixelBufferRef cv_buffer;
+
+ /**
+ * A pointer to the next frame.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ struct vda_frame *next_frame;
+} vda_frame;
+#endif
+
+/**
+ * This structure is used to provide the necessary configurations and data
+ * to the VDA FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ */
+struct vda_context {
+ /**
+ * VDA decoder object.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ VDADecoder decoder;
+
+ /**
+ * The Core Video pixel buffer that contains the current image data.
+ *
+ * encoding: unused
+ * decoding: Set by libavcodec. Unset by user.
+ */
+ CVPixelBufferRef cv_buffer;
+
+ /**
+ * Use the hardware decoder in synchronous mode.
+ *
+ * encoding: unused
+ * decoding: Set by user.
+ */
+ int use_sync_decoding;
+
+#if FF_API_VDA_ASYNC
+ /**
+ * VDA frames queue ordered by presentation timestamp.
+ *
+ * @deprecated Use synchronous decoding mode.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ vda_frame *queue;
+
+ /**
+ * Mutex for locking queue operations.
+ *
+ * @deprecated Use synchronous decoding mode.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ pthread_mutex_t queue_mutex;
+#endif
+
+ /**
+ * The frame width.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by user.
+ */
+ int width;
+
+ /**
+ * The frame height.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by user.
+ */
+ int height;
+
+ /**
+ * The frame format.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by user.
+ */
+ int format;
+
+ /**
+ * The pixel format for output image buffers.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by user.
+ */
+ OSType cv_pix_fmt_type;
+
+ /**
+ * The current bitstream buffer.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ uint8_t *priv_bitstream;
+
+ /**
+ * The current size of the bitstream.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ int priv_bitstream_size;
+
+ /**
+ * The reference size used for fast reallocation.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ int priv_allocated_size;
+};
+
+/** Create the video decoder. */
+int ff_vda_create_decoder(struct vda_context *vda_ctx,
+ uint8_t *extradata,
+ int extradata_size);
+
+/** Destroy the video decoder. */
+int ff_vda_destroy_decoder(struct vda_context *vda_ctx);
+
+#if FF_API_VDA_ASYNC
+/**
+ * Return the top frame of the queue.
+ *
+ * @deprecated Use synchronous decoding mode.
+ */
+vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx);
+
+/**
+ * Release the given frame.
+ *
+ * @deprecated Use synchronous decoding mode.
+ */
+void ff_vda_release_vda_frame(vda_frame *frame);
+#endif
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_VDA_H */
diff --git a/thirdparties/mac/include/libavcodec/vdpau.h b/thirdparties/mac/include/libavcodec/vdpau.h
new file mode 100644
index 0000000..df2aace
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/vdpau.h
@@ -0,0 +1,151 @@
+/*
+ * The Video Decode and Presentation API for UNIX (VDPAU) is used for
+ * hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
+ *
+ * Copyright (C) 2008 NVIDIA
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VDPAU_H
+#define AVCODEC_VDPAU_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_vdpau
+ * Public libavcodec VDPAU header.
+ */
+
+
+/**
+ * @defgroup lavc_codec_hwaccel_vdpau VDPAU Decoder and Renderer
+ * @ingroup lavc_codec_hwaccel
+ *
+ * VDPAU hardware acceleration has two modules
+ * - VDPAU decoding
+ * - VDPAU presentation
+ *
+ * The VDPAU decoding module parses all headers using FFmpeg
+ * parsing mechanisms and uses VDPAU for the actual decoding.
+ *
+ * As per the current implementation, the actual decoding
+ * and rendering (API calls) are done as part of the VDPAU
+ * presentation (vo_vdpau.c) module.
+ *
+ * @{
+ */
+
+#include <vdpau/vdpau.h>
+#include <vdpau/vdpau_x11.h>
+
+union FFVdpPictureInfo {
+ VdpPictureInfoH264 h264;
+ VdpPictureInfoMPEG1Or2 mpeg;
+ VdpPictureInfoVC1 vc1;
+ VdpPictureInfoMPEG4Part2 mpeg4;
+};
+
+/**
+ * This structure is used to share data between the libavcodec library and
+ * the client video application.
+ * The user shall zero-allocate the structure and make it available as
+ * AVCodecContext.hwaccel_context. Members can be set by the user once
+ * during initialization or through each AVCodecContext.get_buffer()
+ * function call. In any case, they must be valid prior to calling
+ * decoding functions.
+ */
+typedef struct AVVDPAUContext {
+ /**
+ * VDPAU decoder handle
+ *
+ * Set by user.
+ */
+ VdpDecoder decoder;
+
+ /**
+ * VDPAU decoder render callback
+ *
+ * Set by the user.
+ */
+ VdpDecoderRender *render;
+
+ /**
+ * VDPAU picture information
+ *
+ * Set by libavcodec.
+ */
+ union FFVdpPictureInfo info;
+
+ /**
+ * Allocated size of the bitstream_buffers table.
+ *
+ * Set by libavcodec.
+ */
+ int bitstream_buffers_allocated;
+
+ /**
+ * Useful bitstream buffers in the bitstream buffers table.
+ *
+ * Set by libavcodec.
+ */
+ int bitstream_buffers_used;
+
+ /**
+ * Table of bitstream buffers.
+ * The user is responsible for freeing this buffer using av_freep().
+ *
+ * Set by libavcodec.
+ */
+ VdpBitstreamBuffer *bitstream_buffers;
+} AVVDPAUContext;
+
+
+/** @brief The videoSurface is used for rendering. */
+#define FF_VDPAU_STATE_USED_FOR_RENDER 1
+
+/**
+ * @brief The videoSurface is needed for reference/prediction.
+ * The codec manipulates this.
+ */
+#define FF_VDPAU_STATE_USED_FOR_REFERENCE 2
+
+/**
+ * @brief This structure is used as a callback between the FFmpeg
+ * decoder (vd_) and presentation (vo_) module.
+ * This is used for defining a video frame containing surface,
+ * picture parameter, bitstream information etc which are passed
+ * between the FFmpeg decoder and its clients.
+ */
+struct vdpau_render_state {
+ VdpVideoSurface surface; ///< Used as rendered surface, never changed.
+
+ int state; ///< Holds FF_VDPAU_STATE_* values.
+
+ /** Describe size/location of the compressed video data.
+ Set to 0 when freeing bitstream_buffers. */
+ int bitstream_buffers_allocated;
+ int bitstream_buffers_used;
+ /** The user is responsible for freeing this buffer using av_freep(). */
+ VdpBitstreamBuffer *bitstream_buffers;
+
+ /** picture parameter information for all supported codecs */
+ union FFVdpPictureInfo info;
+};
+
+/* @}*/
+
+#endif /* AVCODEC_VDPAU_H */
diff --git a/thirdparties/mac/include/libavcodec/version.h b/thirdparties/mac/include/libavcodec/version.h
new file mode 100644
index 0000000..67fdc25
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/version.h
@@ -0,0 +1,113 @@
+/*
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VERSION_H
+#define AVCODEC_VERSION_H
+
+/**
+ * @file
+ * @ingroup libavc
+ * Libavcodec version macros.
+ */
+
+#include "libavutil/avutil.h"
+
+#define LIBAVCODEC_VERSION_MAJOR 54
+#define LIBAVCODEC_VERSION_MINOR 92
+#define LIBAVCODEC_VERSION_MICRO 100
+
+#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
+ LIBAVCODEC_VERSION_MINOR, \
+ LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \
+ LIBAVCODEC_VERSION_MINOR, \
+ LIBAVCODEC_VERSION_MICRO)
+#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
+
+#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ */
+
+#ifndef FF_API_REQUEST_CHANNELS
+#define FF_API_REQUEST_CHANNELS (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_ALLOC_CONTEXT
+#define FF_API_ALLOC_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_AVCODEC_OPEN
+#define FF_API_AVCODEC_OPEN (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_OLD_DECODE_AUDIO
+#define FF_API_OLD_DECODE_AUDIO (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_OLD_TIMECODE
+#define FF_API_OLD_TIMECODE (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+
+#ifndef FF_API_OLD_ENCODE_AUDIO
+#define FF_API_OLD_ENCODE_AUDIO (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_OLD_ENCODE_VIDEO
+#define FF_API_OLD_ENCODE_VIDEO (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_MPV_GLOBAL_OPTS
+#define FF_API_MPV_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_COLOR_TABLE_ID
+#define FF_API_COLOR_TABLE_ID (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_INTER_THRESHOLD
+#define FF_API_INTER_THRESHOLD (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_SUB_ID
+#define FF_API_SUB_ID (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_DSP_MASK
+#define FF_API_DSP_MASK (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_FIND_BEST_PIX_FMT
+#define FF_API_FIND_BEST_PIX_FMT (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_CODEC_ID
+#define FF_API_CODEC_ID (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_VDA_ASYNC
+#define FF_API_VDA_ASYNC (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_AVCODEC_RESAMPLE
+#define FF_API_AVCODEC_RESAMPLE (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_LIBMPEG2
+#define FF_API_LIBMPEG2 (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_MMI
+#define FF_API_MMI (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_IDCT
+#define FF_API_IDCT (LIBAVCODEC_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_DEINTERLACE
+#define FF_API_DEINTERLACE (LIBAVCODEC_VERSION_MAJOR < 56)
+#endif
+
+#endif /* AVCODEC_VERSION_H */
diff --git a/thirdparties/mac/include/libavcodec/xvmc.h b/thirdparties/mac/include/libavcodec/xvmc.h
new file mode 100644
index 0000000..b2bf518
--- /dev/null
+++ b/thirdparties/mac/include/libavcodec/xvmc.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2003 Ivan Kalvachev
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_XVMC_H
+#define AVCODEC_XVMC_H
+
+/**
+ * @file
+ * @ingroup lavc_codec_hwaccel_xvmc
+ * Public libavcodec XvMC header.
+ */
+
+#include <X11/extensions/XvMC.h>
+
+#include "avcodec.h"
+
+/**
+ * @defgroup lavc_codec_hwaccel_xvmc XvMC
+ * @ingroup lavc_codec_hwaccel
+ *
+ * @{
+ */
+
+#define AV_XVMC_ID 0x1DC711C0 /**< special value to ensure that regular pixel routines haven't corrupted the struct
+ the number is 1337 speak for the letters IDCT MCo (motion compensation) */
+
+struct xvmc_pix_fmt {
+ /** The field contains the special constant value AV_XVMC_ID.
+ It is used as a test that the application correctly uses the API,
+ and that there is no corruption caused by pixel routines.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int xvmc_id;
+
+ /** Pointer to the block array allocated by XvMCCreateBlocks().
+ The array has to be freed by XvMCDestroyBlocks().
+ Each group of 64 values represents one data block of differential
+ pixel information (in MoCo mode) or coefficients for IDCT.
+ - application - set the pointer during initialization
+ - libavcodec - fills coefficients/pixel data into the array
+ */
+ short* data_blocks;
+
+ /** Pointer to the macroblock description array allocated by
+ XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks().
+ - application - set the pointer during initialization
+ - libavcodec - fills description data into the array
+ */
+ XvMCMacroBlock* mv_blocks;
+
+ /** Number of macroblock descriptions that can be stored in the mv_blocks
+ array.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int allocated_mv_blocks;
+
+ /** Number of blocks that can be stored at once in the data_blocks array.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int allocated_data_blocks;
+
+ /** Indicate that the hardware would interpret data_blocks as IDCT
+ coefficients and perform IDCT on them.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int idct;
+
+ /** In MoCo mode it indicates that intra macroblocks are assumed to be in
+ unsigned format; same as the XVMC_INTRA_UNSIGNED flag.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ int unsigned_intra;
+
+ /** Pointer to the surface allocated by XvMCCreateSurface().
+ It has to be freed by XvMCDestroySurface() on application exit.
+ It identifies the frame and its state on the video hardware.
+ - application - set during initialization
+ - libavcodec - unchanged
+ */
+ XvMCSurface* p_surface;
+
+/** Set by the decoder before calling ff_draw_horiz_band(),
+ needed by the XvMCRenderSurface function. */
+//@{
+ /** Pointer to the surface used as past reference
+ - application - unchanged
+ - libavcodec - set
+ */
+ XvMCSurface* p_past_surface;
+
+ /** Pointer to the surface used as future reference
+ - application - unchanged
+ - libavcodec - set
+ */
+ XvMCSurface* p_future_surface;
+
+ /** top/bottom field or frame
+ - application - unchanged
+ - libavcodec - set
+ */
+ unsigned int picture_structure;
+
+ /** XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
+ - application - unchanged
+ - libavcodec - set
+ */
+ unsigned int flags;
+//}@
+
+ /** Number of macroblock descriptions in the mv_blocks array
+ that have already been passed to the hardware.
+ - application - zeroes it on get_buffer().
+ A successful ff_draw_horiz_band() may increment it
+ with filled_mb_block_num or zero both.
+ - libavcodec - unchanged
+ */
+ int start_mv_blocks_num;
+
+ /** Number of new macroblock descriptions in the mv_blocks array (after
+ start_mv_blocks_num) that are filled by libavcodec and have to be
+ passed to the hardware.
+ - application - zeroes it on get_buffer() or after successful
+ ff_draw_horiz_band().
+ - libavcodec - increment with one of each stored MB
+ */
+ int filled_mv_blocks_num;
+
+ /** Number of the next free data block; one data block consists of
+ 64 short values in the data_blocks array.
+ All blocks before this one have already been claimed by placing their
+ position into the corresponding block description structure field,
+ that are part of the mv_blocks array.
+ - application - zeroes it on get_buffer().
+ A successful ff_draw_horiz_band() may zero it together
+ with start_mb_blocks_num.
+ - libavcodec - each decoded macroblock increases it by the number
+ of coded blocks it contains.
+ */
+ int next_free_data_block_num;
+};
+
+/**
+ * @}
+ */
+
+#endif /* AVCODEC_XVMC_H */
diff --git a/thirdparties/mac/include/libavdevice/avdevice.h b/thirdparties/mac/include/libavdevice/avdevice.h
new file mode 100644
index 0000000..93a044f
--- /dev/null
+++ b/thirdparties/mac/include/libavdevice/avdevice.h
@@ -0,0 +1,69 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVDEVICE_AVDEVICE_H
+#define AVDEVICE_AVDEVICE_H
+
+#include "version.h"
+
+/**
+ * @file
+ * @ingroup lavd
+ * Main libavdevice API header
+ */
+
+/**
+ * @defgroup lavd Special devices muxing/demuxing library
+ * @{
+ * Libavdevice is a complementary library to @ref libavf "libavformat". It
+ * provides various "special" platform-specific muxers and demuxers, e.g. for
+ * grabbing devices, audio capture and playback etc. As a consequence, the
+ * (de)muxers in libavdevice are of the AVFMT_NOFILE type (they use their own
+ * I/O functions). The filename passed to avformat_open_input() often does not
+ * refer to an actually existing file, but has some special device-specific
+ * meaning - e.g. for x11grab it is the display name.
+ *
+ * To use libavdevice, simply call avdevice_register_all() to register all
+ * compiled muxers and demuxers. They all use standard libavformat API.
+ * @}
+ */
+
+#include "libavformat/avformat.h"
+
+/**
+ * Return the LIBAVDEVICE_VERSION_INT constant.
+ */
+unsigned avdevice_version(void);
+
+/**
+ * Return the libavdevice build-time configuration.
+ */
+const char *avdevice_configuration(void);
+
+/**
+ * Return the libavdevice license.
+ */
+const char *avdevice_license(void);
+
+/**
+ * Initialize libavdevice and register all the input and output devices.
+ * @warning This function is not thread safe.
+ */
+void avdevice_register_all(void);
+
+#endif /* AVDEVICE_AVDEVICE_H */
diff --git a/thirdparties/mac/include/libavdevice/version.h b/thirdparties/mac/include/libavdevice/version.h
new file mode 100644
index 0000000..9e0c0ae
--- /dev/null
+++ b/thirdparties/mac/include/libavdevice/version.h
@@ -0,0 +1,50 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVDEVICE_VERSION_H
+#define AVDEVICE_VERSION_H
+
+/**
+ * @file
+ * @ingroup lavd
+ * Libavdevice version macros
+ */
+
+#include "libavutil/avutil.h"
+
+#define LIBAVDEVICE_VERSION_MAJOR 54
+#define LIBAVDEVICE_VERSION_MINOR 3
+#define LIBAVDEVICE_VERSION_MICRO 103
+
+#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
+ LIBAVDEVICE_VERSION_MINOR, \
+ LIBAVDEVICE_VERSION_MICRO)
+#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \
+ LIBAVDEVICE_VERSION_MINOR, \
+ LIBAVDEVICE_VERSION_MICRO)
+#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT
+
+#define LIBAVDEVICE_IDENT "Lavd" AV_STRINGIFY(LIBAVDEVICE_VERSION)
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ */
+
+#endif /* AVDEVICE_VERSION_H */
diff --git a/thirdparties/mac/include/libavfilter/asrc_abuffer.h b/thirdparties/mac/include/libavfilter/asrc_abuffer.h
new file mode 100644
index 0000000..aa34461
--- /dev/null
+++ b/thirdparties/mac/include/libavfilter/asrc_abuffer.h
@@ -0,0 +1,91 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_ASRC_ABUFFER_H
+#define AVFILTER_ASRC_ABUFFER_H
+
+#include "avfilter.h"
+
+/**
+ * @file
+ * memory buffer source for audio
+ *
+ * @deprecated use buffersrc.h instead.
+ */
+
+/**
+ * Queue an audio buffer to the audio buffer source.
+ *
+ * @param abuffersrc audio source buffer context
+ * @param data pointers to the samples planes
+ * @param linesize linesizes of each audio buffer plane
+ * @param nb_samples number of samples per channel
+ * @param sample_fmt sample format of the audio data
+ * @param ch_layout channel layout of the audio data
+ * @param planar flag to indicate if audio data is planar or packed
+ * @param pts presentation timestamp of the audio buffer
+ * @param flags unused
+ *
+ * @deprecated use av_buffersrc_add_ref() instead.
+ */
+attribute_deprecated
+int av_asrc_buffer_add_samples(AVFilterContext *abuffersrc,
+ uint8_t *data[8], int linesize[8],
+ int nb_samples, int sample_rate,
+ int sample_fmt, int64_t ch_layout, int planar,
+ int64_t pts, int av_unused flags);
+
+/**
+ * Queue an audio buffer to the audio buffer source.
+ *
+ * This is similar to av_asrc_buffer_add_samples(), but the samples
+ * are stored in a buffer with known size.
+ *
+ * @param abuffersrc audio source buffer context
+ * @param buf pointer to the samples data, packed is assumed
+ * @param size the size in bytes of the buffer, it must contain an
+ * integer number of samples
+ * @param sample_fmt sample format of the audio data
+ * @param ch_layout channel layout of the audio data
+ * @param pts presentation timestamp of the audio buffer
+ * @param flags unused
+ *
+ * @deprecated use av_buffersrc_add_ref() instead.
+ */
+attribute_deprecated
+int av_asrc_buffer_add_buffer(AVFilterContext *abuffersrc,
+ uint8_t *buf, int buf_size,
+ int sample_rate,
+ int sample_fmt, int64_t ch_layout, int planar,
+ int64_t pts, int av_unused flags);
+
+/**
+ * Queue an audio buffer to the audio buffer source.
+ *
+ * @param abuffersrc audio source buffer context
+ * @param samplesref buffer ref to queue
+ * @param flags unused
+ *
+ * @deprecated use av_buffersrc_add_ref() instead.
+ */
+attribute_deprecated
+int av_asrc_buffer_add_audio_buffer_ref(AVFilterContext *abuffersrc,
+ AVFilterBufferRef *samplesref,
+ int av_unused flags);
+
+#endif /* AVFILTER_ASRC_ABUFFER_H */
diff --git a/thirdparties/mac/include/libavfilter/avcodec.h b/thirdparties/mac/include/libavfilter/avcodec.h
new file mode 100644
index 0000000..5f4209a
--- /dev/null
+++ b/thirdparties/mac/include/libavfilter/avcodec.h
@@ -0,0 +1,131 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_AVCODEC_H
+#define AVFILTER_AVCODEC_H
+
+/**
+ * @file
+ * libavcodec/libavfilter gluing utilities
+ *
+ * This should be included in an application ONLY if the installed
+ * libavfilter has been compiled with libavcodec support, otherwise
+ * symbols defined below will not be available.
+ */
+
+#include "libavcodec/avcodec.h" // AVFrame
+#include "avfilter.h"
+
+/**
+ * Copy the frame properties of src to dst, without copying the actual
+ * image data.
+ *
+ * @return 0 on success, a negative number on error.
+ */
+int avfilter_copy_frame_props(AVFilterBufferRef *dst, const AVFrame *src);
+
+/**
+ * Copy the frame properties and data pointers of src to dst, without copying
+ * the actual data.
+ *
+ * @return 0 on success, a negative number on error.
+ */
+int avfilter_copy_buf_props(AVFrame *dst, const AVFilterBufferRef *src);
+
+/**
+ * Create and return a picref reference from the data and properties
+ * contained in frame.
+ *
+ * @param perms permissions to assign to the new buffer reference
+ */
+AVFilterBufferRef *avfilter_get_video_buffer_ref_from_frame(const AVFrame *frame, int perms);
+
+
+/**
+ * Create and return a picref reference from the data and properties
+ * contained in frame.
+ *
+ * @param perms permissions to assign to the new buffer reference
+ */
+AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_frame(const AVFrame *frame,
+ int perms);
+
+/**
+ * Create and return a buffer reference from the data and properties
+ * contained in frame.
+ *
+ * @param perms permissions to assign to the new buffer reference
+ */
+AVFilterBufferRef *avfilter_get_buffer_ref_from_frame(enum AVMediaType type,
+ const AVFrame *frame,
+ int perms);
+
+#ifdef FF_API_FILL_FRAME
+/**
+ * Fill an AVFrame with the information stored in samplesref.
+ *
+ * @param frame an already allocated AVFrame
+ * @param samplesref an audio buffer reference
+ * @return 0 in case of success, a negative AVERROR code in case of
+ * failure
+ * @deprecated Use avfilter_copy_buf_props() instead.
+ */
+attribute_deprecated
+int avfilter_fill_frame_from_audio_buffer_ref(AVFrame *frame,
+ const AVFilterBufferRef *samplesref);
+
+/**
+ * Fill an AVFrame with the information stored in picref.
+ *
+ * @param frame an already allocated AVFrame
+ * @param picref a video buffer reference
+ * @return 0 in case of success, a negative AVERROR code in case of
+ * failure
+ * @deprecated Use avfilter_copy_buf_props() instead.
+ */
+attribute_deprecated
+int avfilter_fill_frame_from_video_buffer_ref(AVFrame *frame,
+ const AVFilterBufferRef *picref);
+
+/**
+ * Fill an AVFrame with information stored in ref.
+ *
+ * @param frame an already allocated AVFrame
+ * @param ref a video or audio buffer reference
+ * @return 0 in case of success, a negative AVERROR code in case of
+ * failure
+ * @deprecated Use avfilter_copy_buf_props() instead.
+ */
+attribute_deprecated
+int avfilter_fill_frame_from_buffer_ref(AVFrame *frame,
+ const AVFilterBufferRef *ref);
+#endif
+
+/**
+ * Add frame data to buffer_src.
+ *
+ * @param buffer_src pointer to a buffer source context
+ * @param frame a frame, or NULL to mark EOF
+ * @param flags a combination of AV_BUFFERSRC_FLAG_*
+ * @return >= 0 in case of success, a negative AVERROR code
+ * in case of failure
+ */
+int av_buffersrc_add_frame(AVFilterContext *buffer_src,
+ const AVFrame *frame, int flags);
+
+#endif /* AVFILTER_AVCODEC_H */
diff --git a/thirdparties/mac/include/libavfilter/avfilter.h b/thirdparties/mac/include/libavfilter/avfilter.h
new file mode 100644
index 0000000..1c80167
--- /dev/null
+++ b/thirdparties/mac/include/libavfilter/avfilter.h
@@ -0,0 +1,852 @@
+/*
+ * filter layer
+ * Copyright (c) 2007 Bobby Bingham
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_AVFILTER_H
+#define AVFILTER_AVFILTER_H
+
+/**
+ * @file
+ * @ingroup lavfi
+ * external API header
+ */
+
+/**
+ * @defgroup lavfi Libavfilter
+ * @{
+ */
+
+#include <stddef.h>
+
+#include "libavutil/avutil.h"
+#include "libavutil/dict.h"
+#include "libavutil/log.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+
+#include "libavfilter/version.h"
+
+/**
+ * Return the LIBAVFILTER_VERSION_INT constant.
+ */
+unsigned avfilter_version(void);
+
+/**
+ * Return the libavfilter build-time configuration.
+ */
+const char *avfilter_configuration(void);
+
+/**
+ * Return the libavfilter license.
+ */
+const char *avfilter_license(void);
+
+/**
+ * Get the class for the AVFilterContext struct.
+ */
+const AVClass *avfilter_get_class(void);
+
+typedef struct AVFilterContext AVFilterContext;
+typedef struct AVFilterLink AVFilterLink;
+typedef struct AVFilterPad AVFilterPad;
+typedef struct AVFilterFormats AVFilterFormats;
+
+/**
+ * A reference-counted buffer data type used by the filter system. Filters
+ * should not store pointers to this structure directly, but instead use the
+ * AVFilterBufferRef structure below.
+ */
+typedef struct AVFilterBuffer {
+ uint8_t *data[8]; ///< buffer data for each plane/channel
+
+ /**
+ * pointers to the data planes/channels.
+ *
+ * For video, this should simply point to data[].
+ *
+ * For planar audio, each channel has a separate data pointer, and
+ * linesize[0] contains the size of each channel buffer.
+ * For packed audio, there is just one data pointer, and linesize[0]
+ * contains the total size of the buffer for all channels.
+ *
+ * Note: Both data and extended_data will always be set, but for planar
+ * audio with more channels that can fit in data, extended_data must be used
+ * in order to access all channels.
+ */
+ uint8_t **extended_data;
+ int linesize[8]; ///< number of bytes per line
+
+ /** private data to be used by a custom free function */
+ void *priv;
+ /**
+ * A pointer to the function to deallocate this buffer if the default
+ * function is not sufficient. This could, for example, add the memory
+ * back into a memory pool to be reused later without the overhead of
+ * reallocating it from scratch.
+ */
+ void (*free)(struct AVFilterBuffer *buf);
+
+ int format; ///< media format
+ int w, h; ///< width and height of the allocated buffer
+ unsigned refcount; ///< number of references to this buffer
+} AVFilterBuffer;
+
+#define AV_PERM_READ 0x01 ///< can read from the buffer
+#define AV_PERM_WRITE 0x02 ///< can write to the buffer
+#define AV_PERM_PRESERVE 0x04 ///< nobody else can overwrite the buffer
+#define AV_PERM_REUSE 0x08 ///< can output the buffer multiple times, with the same contents each time
+#define AV_PERM_REUSE2 0x10 ///< can output the buffer multiple times, modified each time
+#define AV_PERM_NEG_LINESIZES 0x20 ///< the buffer requested can have negative linesizes
+#define AV_PERM_ALIGN 0x40 ///< the buffer must be aligned
+
+#define AVFILTER_ALIGN 16 //not part of ABI
+
+/**
+ * Audio specific properties in a reference to an AVFilterBuffer. Since
+ * AVFilterBufferRef is common to different media formats, audio specific
+ * per reference properties must be separated out.
+ */
+typedef struct AVFilterBufferRefAudioProps {
+ uint64_t channel_layout; ///< channel layout of audio buffer
+ int nb_samples; ///< number of audio samples per channel
+ int sample_rate; ///< audio buffer sample rate
+ int channels; ///< number of channels (do not access directly)
+} AVFilterBufferRefAudioProps;
+
+/**
+ * Video specific properties in a reference to an AVFilterBuffer. Since
+ * AVFilterBufferRef is common to different media formats, video specific
+ * per reference properties must be separated out.
+ */
+typedef struct AVFilterBufferRefVideoProps {
+ int w; ///< image width
+ int h; ///< image height
+ AVRational sample_aspect_ratio; ///< sample aspect ratio
+ int interlaced; ///< is frame interlaced
+ int top_field_first; ///< field order
+ enum AVPictureType pict_type; ///< picture type of the frame
+ int key_frame; ///< 1 -> keyframe, 0-> not
+ int qp_table_linesize; ///< qp_table stride
+ int qp_table_size; ///< qp_table size
+ int8_t *qp_table; ///< array of Quantization Parameters
+} AVFilterBufferRefVideoProps;
+
+/**
+ * A reference to an AVFilterBuffer. Since filters can manipulate the origin of
+ * a buffer to, for example, crop image without any memcpy, the buffer origin
+ * and dimensions are per-reference properties. Linesize is also useful for
+ * image flipping, frame to field filters, etc, and so is also per-reference.
+ *
+ * TODO: add anything necessary for frame reordering
+ */
+typedef struct AVFilterBufferRef {
+ AVFilterBuffer *buf; ///< the buffer that this is a reference to
+ uint8_t *data[8]; ///< picture/audio data for each plane
+ /**
+ * pointers to the data planes/channels.
+ *
+ * For video, this should simply point to data[].
+ *
+ * For planar audio, each channel has a separate data pointer, and
+ * linesize[0] contains the size of each channel buffer.
+ * For packed audio, there is just one data pointer, and linesize[0]
+ * contains the total size of the buffer for all channels.
+ *
+ * Note: Both data and extended_data will always be set, but for planar
+ * audio with more channels that can fit in data, extended_data must be used
+ * in order to access all channels.
+ */
+ uint8_t **extended_data;
+ int linesize[8]; ///< number of bytes per line
+
+ AVFilterBufferRefVideoProps *video; ///< video buffer specific properties
+ AVFilterBufferRefAudioProps *audio; ///< audio buffer specific properties
+
+ /**
+ * presentation timestamp. The time unit may change during
+ * filtering, as it is specified in the link and the filter code
+ * may need to rescale the PTS accordingly.
+ */
+ int64_t pts;
+ int64_t pos; ///< byte position in stream, -1 if unknown
+
+ int format; ///< media format
+
+ int perms; ///< permissions, see the AV_PERM_* flags
+
+ enum AVMediaType type; ///< media type of buffer data
+
+ AVDictionary *metadata; ///< dictionary containing metadata key=value tags
+} AVFilterBufferRef;
+
+/**
+ * Copy properties of src to dst, without copying the actual data
+ */
+void avfilter_copy_buffer_ref_props(AVFilterBufferRef *dst, AVFilterBufferRef *src);
+
+/**
+ * Add a new reference to a buffer.
+ *
+ * @param ref an existing reference to the buffer
+ * @param pmask a bitmask containing the allowable permissions in the new
+ * reference
+ * @return a new reference to the buffer with the same properties as the
+ * old, excluding any permissions denied by pmask
+ */
+AVFilterBufferRef *avfilter_ref_buffer(AVFilterBufferRef *ref, int pmask);
+
+/**
+ * Remove a reference to a buffer. If this is the last reference to the
+ * buffer, the buffer itself is also automatically freed.
+ *
+ * @param ref reference to the buffer, may be NULL
+ *
+ * @note it is recommended to use avfilter_unref_bufferp() instead of this
+ * function
+ */
+void avfilter_unref_buffer(AVFilterBufferRef *ref);
+
+/**
+ * Remove a reference to a buffer and set the pointer to NULL.
+ * If this is the last reference to the buffer, the buffer itself
+ * is also automatically freed.
+ *
+ * @param ref pointer to the buffer reference
+ */
+void avfilter_unref_bufferp(AVFilterBufferRef **ref);
+
+/**
+ * Get the number of channels of a buffer reference.
+ */
+int avfilter_ref_get_channels(AVFilterBufferRef *ref);
+
+#if FF_API_AVFILTERPAD_PUBLIC
+/**
+ * A filter pad used for either input or output.
+ *
+ * See doc/filter_design.txt for details on how to implement the methods.
+ *
+ * @warning this struct might be removed from public API.
+ * users should call avfilter_pad_get_name() and avfilter_pad_get_type()
+ * to access the name and type fields; there should be no need to access
+ * any other fields from outside of libavfilter.
+ */
+struct AVFilterPad {
+ /**
+ * Pad name. The name is unique among inputs and among outputs, but an
+ * input may have the same name as an output. This may be NULL if this
+ * pad has no need to ever be referenced by name.
+ */
+ const char *name;
+
+ /**
+ * AVFilterPad type.
+ */
+ enum AVMediaType type;
+
+ /**
+ * Input pads:
+ * Minimum required permissions on incoming buffers. Any buffer with
+ * insufficient permissions will be automatically copied by the filter
+ * system to a new buffer which provides the needed access permissions.
+ *
+ * Output pads:
+ * Guaranteed permissions on outgoing buffers. Any buffer pushed on the
+ * link must have at least these permissions; this fact is checked by
+ * asserts. It can be used to optimize buffer allocation.
+ */
+ int min_perms;
+
+ /**
+ * Input pads:
+ * Permissions which are not accepted on incoming buffers. Any buffer
+ * which has any of these permissions set will be automatically copied
+ * by the filter system to a new buffer which does not have those
+ * permissions. This can be used to easily disallow buffers with
+ * AV_PERM_REUSE.
+ *
+ * Output pads:
+ * Permissions which are automatically removed on outgoing buffers. It
+ * can be used to optimize buffer allocation.
+ */
+ int rej_perms;
+
+ /**
+ * @deprecated unused
+ */
+ int (*start_frame)(AVFilterLink *link, AVFilterBufferRef *picref);
+
+ /**
+ * Callback function to get a video buffer. If NULL, the filter system will
+ * use ff_default_get_video_buffer().
+ *
+ * Input video pads only.
+ */
+ AVFilterBufferRef *(*get_video_buffer)(AVFilterLink *link, int perms, int w, int h);
+
+ /**
+ * Callback function to get an audio buffer. If NULL, the filter system will
+ * use ff_default_get_audio_buffer().
+ *
+ * Input audio pads only.
+ */
+ AVFilterBufferRef *(*get_audio_buffer)(AVFilterLink *link, int perms,
+ int nb_samples);
+
+ /**
+ * @deprecated unused
+ */
+ int (*end_frame)(AVFilterLink *link);
+
+ /**
+ * @deprecated unused
+ */
+ int (*draw_slice)(AVFilterLink *link, int y, int height, int slice_dir);
+
+ /**
+ * Filtering callback. This is where a filter receives a frame with
+ * audio/video data and should do its processing.
+ *
+ * Input pads only.
+ *
+ * @return >= 0 on success, a negative AVERROR on error. This function
+ * must ensure that frame is properly unreferenced on error if it
+ * hasn't been passed on to another filter.
+ */
+ int (*filter_frame)(AVFilterLink *link, AVFilterBufferRef *frame);
+
+ /**
+ * Frame poll callback. This returns the number of immediately available
+ * samples. It should return a positive value if the next request_frame()
+ * is guaranteed to return one frame (with no delay).
+ *
+ * Defaults to just calling the source poll_frame() method.
+ *
+ * Output pads only.
+ */
+ int (*poll_frame)(AVFilterLink *link);
+
+ /**
+ * Frame request callback. A call to this should result in at least one
+ * frame being output over the given link. This should return zero on
+ * success, and another value on error.
+ * See ff_request_frame() for the error codes with a specific
+ * meaning.
+ *
+ * Output pads only.
+ */
+ int (*request_frame)(AVFilterLink *link);
+
+ /**
+ * Link configuration callback.
+ *
+ * For output pads, this should set the following link properties:
+ * video: width, height, sample_aspect_ratio, time_base
+ * audio: sample_rate.
+ *
+ * This should NOT set properties such as format, channel_layout, etc which
+ * are negotiated between filters by the filter system using the
+ * query_formats() callback before this function is called.
+ *
+ * For input pads, this should check the properties of the link, and update
+ * the filter's internal state as necessary.
+ *
+ * For both input and output pads, this should return zero on success,
+ * and another value on error.
+ */
+ int (*config_props)(AVFilterLink *link);
+
+ /**
+ * The filter expects a fifo to be inserted on its input link,
+ * typically because it has a delay.
+ *
+ * input pads only.
+ */
+ int needs_fifo;
+};
+#endif
+
+/**
+ * Get the name of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array it; is the caller's
+ * responsibility to ensure the index is valid
+ *
+ * @return name of the pad_idx'th pad in pads
+ */
+const char *avfilter_pad_get_name(AVFilterPad *pads, int pad_idx);
+
+/**
+ * Get the type of an AVFilterPad.
+ *
+ * @param pads an array of AVFilterPads
+ * @param pad_idx index of the pad in the array; it is the caller's
+ * responsibility to ensure the index is valid
+ *
+ * @return type of the pad_idx'th pad in pads
+ */
+enum AVMediaType avfilter_pad_get_type(AVFilterPad *pads, int pad_idx);
+
+/**
+ * Filter definition. This defines the pads a filter contains, and all the
+ * callback functions used to interact with the filter.
+ */
+typedef struct AVFilter {
+ const char *name; ///< filter name
+
+ /**
+ * A description for the filter. You should use the
+ * NULL_IF_CONFIG_SMALL() macro to define it.
+ */
+ const char *description;
+
+ const AVFilterPad *inputs; ///< NULL terminated list of inputs. NULL if none
+ const AVFilterPad *outputs; ///< NULL terminated list of outputs. NULL if none
+
+ /*****************************************************************
+ * All fields below this line are not part of the public API. They
+ * may not be used outside of libavfilter and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+
+ /**
+ * Filter initialization function. Args contains the user-supplied
+ * parameters. FIXME: maybe an AVOption-based system would be better?
+ */
+ int (*init)(AVFilterContext *ctx, const char *args);
+
+ /**
+ * Filter uninitialization function. Should deallocate any memory held
+ * by the filter, release any buffer references, etc. This does not need
+ * to deallocate the AVFilterContext->priv memory itself.
+ */
+ void (*uninit)(AVFilterContext *ctx);
+
+ /**
+ * Queries formats/layouts supported by the filter and its pads, and sets
+ * the in_formats/in_chlayouts for links connected to its output pads,
+ * and out_formats/out_chlayouts for links connected to its input pads.
+ *
+ * @return zero on success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+ int (*query_formats)(AVFilterContext *);
+
+ int priv_size; ///< size of private data to allocate for the filter
+
+ /**
+ * Make the filter instance process a command.
+ *
+ * @param cmd the command to process, for handling simplicity all commands must be alphanumeric only
+ * @param arg the argument for the command
+ * @param res a buffer with size res_size where the filter(s) can return a response. This must not change when the command is not supported.
+ * @param flags if AVFILTER_CMD_FLAG_FAST is set and the command would be
+ * time consuming then a filter should treat it like an unsupported command
+ *
+ * @returns >=0 on success otherwise an error code.
+ * AVERROR(ENOSYS) on unsupported commands
+ */
+ int (*process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+ /**
+ * Filter initialization function, alternative to the init()
+ * callback. Args contains the user-supplied parameters, opaque is
+ * used for providing binary data.
+ */
+ int (*init_opaque)(AVFilterContext *ctx, const char *args, void *opaque);
+
+ const AVClass *priv_class; ///< private class, containing filter specific options
+} AVFilter;
+
+/** An instance of a filter */
+struct AVFilterContext {
+ const AVClass *av_class; ///< needed for av_log()
+
+ AVFilter *filter; ///< the AVFilter of which this is an instance
+
+ char *name; ///< name of this filter instance
+
+ AVFilterPad *input_pads; ///< array of input pads
+ AVFilterLink **inputs; ///< array of pointers to input links
+#if FF_API_FOO_COUNT
+ unsigned input_count; ///< @deprecated use nb_inputs
+#endif
+ unsigned nb_inputs; ///< number of input pads
+
+ AVFilterPad *output_pads; ///< array of output pads
+ AVFilterLink **outputs; ///< array of pointers to output links
+#if FF_API_FOO_COUNT
+ unsigned output_count; ///< @deprecated use nb_outputs
+#endif
+ unsigned nb_outputs; ///< number of output pads
+
+ void *priv; ///< private data for use by the filter
+
+ struct AVFilterCommand *command_queue;
+};
+
+/**
+ * A link between two filters. This contains pointers to the source and
+ * destination filters between which this link exists, and the indexes of
+ * the pads involved. In addition, this link also contains the parameters
+ * which have been negotiated and agreed upon between the filter, such as
+ * image dimensions, format, etc.
+ */
+struct AVFilterLink {
+ AVFilterContext *src; ///< source filter
+ AVFilterPad *srcpad; ///< output pad on the source filter
+
+ AVFilterContext *dst; ///< dest filter
+ AVFilterPad *dstpad; ///< input pad on the dest filter
+
+ enum AVMediaType type; ///< filter media type
+
+ /* These parameters apply only to video */
+ int w; ///< agreed upon image width
+ int h; ///< agreed upon image height
+ AVRational sample_aspect_ratio; ///< agreed upon sample aspect ratio
+ /* These parameters apply only to audio */
+ uint64_t channel_layout; ///< channel layout of current buffer (see libavutil/channel_layout.h)
+ int sample_rate; ///< samples per second
+
+ int format; ///< agreed upon media format
+
+ /**
+ * Define the time base used by the PTS of the frames/samples
+ * which will pass through this link.
+ * During the configuration stage, each filter is supposed to
+ * change only the output timebase, while the timebase of the
+ * input link is assumed to be an unchangeable property.
+ */
+ AVRational time_base;
+
+ /*****************************************************************
+ * All fields below this line are not part of the public API. They
+ * may not be used outside of libavfilter and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+ /**
+ * Lists of formats and channel layouts supported by the input and output
+ * filters respectively. These lists are used for negotiating the format
+ * to actually be used, which will be loaded into the format and
+ * channel_layout members, above, when chosen.
+ *
+ */
+ AVFilterFormats *in_formats;
+ AVFilterFormats *out_formats;
+
+ /**
+ * Lists of channel layouts and sample rates used for automatic
+ * negotiation.
+ */
+ AVFilterFormats *in_samplerates;
+ AVFilterFormats *out_samplerates;
+ struct AVFilterChannelLayouts *in_channel_layouts;
+ struct AVFilterChannelLayouts *out_channel_layouts;
+
+ /**
+ * Audio only, the destination filter sets this to a non-zero value to
+ * request that buffers with the given number of samples should be sent to
+ * it. AVFilterPad.needs_fifo must also be set on the corresponding input
+ * pad.
+ * Last buffer before EOF will be padded with silence.
+ */
+ int request_samples;
+
+ /** stage of the initialization of the link properties (dimensions, etc) */
+ enum {
+ AVLINK_UNINIT = 0, ///< not started
+ AVLINK_STARTINIT, ///< started, but incomplete
+ AVLINK_INIT ///< complete
+ } init_state;
+
+ struct AVFilterPool *pool;
+
+ /**
+ * Graph the filter belongs to.
+ */
+ struct AVFilterGraph *graph;
+
+ /**
+ * Current timestamp of the link, as defined by the most recent
+ * frame(s), in AV_TIME_BASE units.
+ */
+ int64_t current_pts;
+
+ /**
+ * Index in the age array.
+ */
+ int age_index;
+
+ /**
+ * Frame rate of the stream on the link, or 1/0 if unknown;
+ * if left to 0/0, will be automatically be copied from the first input
+ * of the source filter if it exists.
+ *
+ * Sources should set it to the best estimation of the real frame rate.
+ * Filters should update it if necessary depending on their function.
+ * Sinks can use it to set a default output frame rate.
+ * It is similar to the r_frame_rate field in AVStream.
+ */
+ AVRational frame_rate;
+
+ /**
+ * Buffer partially filled with samples to achieve a fixed/minimum size.
+ */
+ AVFilterBufferRef *partial_buf;
+
+ /**
+ * Size of the partial buffer to allocate.
+ * Must be between min_samples and max_samples.
+ */
+ int partial_buf_size;
+
+ /**
+ * Minimum number of samples to filter at once. If filter_frame() is
+ * called with fewer samples, it will accumulate them in partial_buf.
+ * This field and the related ones must not be changed after filtering
+ * has started.
+ * If 0, all related fields are ignored.
+ */
+ int min_samples;
+
+ /**
+ * Maximum number of samples to filter at once. If filter_frame() is
+ * called with more samples, it will split them.
+ */
+ int max_samples;
+
+ /**
+ * The buffer reference currently being received across the link by the
+ * destination filter. This is used internally by the filter system to
+ * allow automatic copying of buffers which do not have sufficient
+ * permissions for the destination. This should not be accessed directly
+ * by the filters.
+ */
+ AVFilterBufferRef *cur_buf_copy;
+
+ /**
+ * True if the link is closed.
+ * If set, all attemps of start_frame, filter_frame or request_frame
+ * will fail with AVERROR_EOF, and if necessary the reference will be
+ * destroyed.
+ * If request_frame returns AVERROR_EOF, this flag is set on the
+ * corresponding link.
+ * It can be set also be set by either the source or the destination
+ * filter.
+ */
+ int closed;
+
+ /**
+ * Number of channels.
+ */
+ int channels;
+};
+
+/**
+ * Link two filters together.
+ *
+ * @param src the source filter
+ * @param srcpad index of the output pad on the source filter
+ * @param dst the destination filter
+ * @param dstpad index of the input pad on the destination filter
+ * @return zero on success
+ */
+int avfilter_link(AVFilterContext *src, unsigned srcpad,
+ AVFilterContext *dst, unsigned dstpad);
+
+/**
+ * Free the link in *link, and set its pointer to NULL.
+ */
+void avfilter_link_free(AVFilterLink **link);
+
+/**
+ * Get the number of channels of a link.
+ */
+int avfilter_link_get_channels(AVFilterLink *link);
+
+/**
+ * Set the closed field of a link.
+ */
+void avfilter_link_set_closed(AVFilterLink *link, int closed);
+
+/**
+ * Negotiate the media format, dimensions, etc of all inputs to a filter.
+ *
+ * @param filter the filter to negotiate the properties for its inputs
+ * @return zero on successful negotiation
+ */
+int avfilter_config_links(AVFilterContext *filter);
+
+/**
+ * Create a buffer reference wrapped around an already allocated image
+ * buffer.
+ *
+ * @param data pointers to the planes of the image to reference
+ * @param linesize linesizes for the planes of the image to reference
+ * @param perms the required access permissions
+ * @param w the width of the image specified by the data and linesize arrays
+ * @param h the height of the image specified by the data and linesize arrays
+ * @param format the pixel format of the image specified by the data and linesize arrays
+ */
+AVFilterBufferRef *
+avfilter_get_video_buffer_ref_from_arrays(uint8_t * const data[4], const int linesize[4], int perms,
+ int w, int h, enum AVPixelFormat format);
+
+/**
+ * Create an audio buffer reference wrapped around an already
+ * allocated samples buffer.
+ *
+ * See avfilter_get_audio_buffer_ref_from_arrays_channels() for a version
+ * that can handle unknown channel layouts.
+ *
+ * @param data pointers to the samples plane buffers
+ * @param linesize linesize for the samples plane buffers
+ * @param perms the required access permissions
+ * @param nb_samples number of samples per channel
+ * @param sample_fmt the format of each sample in the buffer to allocate
+ * @param channel_layout the channel layout of the buffer
+ */
+AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_arrays(uint8_t **data,
+ int linesize,
+ int perms,
+ int nb_samples,
+ enum AVSampleFormat sample_fmt,
+ uint64_t channel_layout);
+/**
+ * Create an audio buffer reference wrapped around an already
+ * allocated samples buffer.
+ *
+ * @param data pointers to the samples plane buffers
+ * @param linesize linesize for the samples plane buffers
+ * @param perms the required access permissions
+ * @param nb_samples number of samples per channel
+ * @param sample_fmt the format of each sample in the buffer to allocate
+ * @param channels the number of channels of the buffer
+ * @param channel_layout the channel layout of the buffer,
+ * must be either 0 or consistent with channels
+ */
+AVFilterBufferRef *avfilter_get_audio_buffer_ref_from_arrays_channels(uint8_t **data,
+ int linesize,
+ int perms,
+ int nb_samples,
+ enum AVSampleFormat sample_fmt,
+ int channels,
+ uint64_t channel_layout);
+
+
+
+#define AVFILTER_CMD_FLAG_ONE 1 ///< Stop once a filter understood the command (for target=all for example), fast filters are favored automatically
+#define AVFILTER_CMD_FLAG_FAST 2 ///< Only execute command when its fast (like a video out that supports contrast adjustment in hw)
+
+/**
+ * Make the filter instance process a command.
+ * It is recommended to use avfilter_graph_send_command().
+ */
+int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+/** Initialize the filter system. Register all builtin filters. */
+void avfilter_register_all(void);
+
+/** Uninitialize the filter system. Unregister all filters. */
+void avfilter_uninit(void);
+
+/**
+ * Register a filter. This is only needed if you plan to use
+ * avfilter_get_by_name later to lookup the AVFilter structure by name. A
+ * filter can still by instantiated with avfilter_open even if it is not
+ * registered.
+ *
+ * @param filter the filter to register
+ * @return 0 if the registration was successful, a negative value
+ * otherwise
+ */
+int avfilter_register(AVFilter *filter);
+
+/**
+ * Get a filter definition matching the given name.
+ *
+ * @param name the filter name to find
+ * @return the filter definition, if any matching one is registered.
+ * NULL if none found.
+ */
+AVFilter *avfilter_get_by_name(const char *name);
+
+/**
+ * If filter is NULL, returns a pointer to the first registered filter pointer,
+ * if filter is non-NULL, returns the next pointer after filter.
+ * If the returned pointer points to NULL, the last registered filter
+ * was already reached.
+ */
+AVFilter **av_filter_next(AVFilter **filter);
+
+/**
+ * Create a filter instance.
+ *
+ * @param filter_ctx put here a pointer to the created filter context
+ * on success, NULL on failure
+ * @param filter the filter to create an instance of
+ * @param inst_name Name to give to the new instance. Can be NULL for none.
+ * @return >= 0 in case of success, a negative error code otherwise
+ */
+int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
+
+/**
+ * Initialize a filter.
+ *
+ * @param filter the filter to initialize
+ * @param args A string of parameters to use when initializing the filter.
+ * The format and meaning of this string varies by filter.
+ * @param opaque Any extra non-string data needed by the filter. The meaning
+ * of this parameter varies by filter.
+ * @return zero on success
+ */
+int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque);
+
+/**
+ * Free a filter context.
+ *
+ * @param filter the filter to free
+ */
+void avfilter_free(AVFilterContext *filter);
+
+/**
+ * Insert a filter in the middle of an existing link.
+ *
+ * @param link the link into which the filter should be inserted
+ * @param filt the filter to be inserted
+ * @param filt_srcpad_idx the input pad on the filter to connect
+ * @param filt_dstpad_idx the output pad on the filter to connect
+ * @return zero on success
+ */
+int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
+ unsigned filt_srcpad_idx, unsigned filt_dstpad_idx);
+
+/**
+ * @}
+ */
+
+#endif /* AVFILTER_AVFILTER_H */
diff --git a/thirdparties/mac/include/libavfilter/avfiltergraph.h b/thirdparties/mac/include/libavfilter/avfiltergraph.h
new file mode 100644
index 0000000..3965412
--- /dev/null
+++ b/thirdparties/mac/include/libavfilter/avfiltergraph.h
@@ -0,0 +1,271 @@
+/*
+ * Filter graphs
+ * copyright (c) 2007 Bobby Bingham
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_AVFILTERGRAPH_H
+#define AVFILTER_AVFILTERGRAPH_H
+
+#include "avfilter.h"
+#include "libavutil/log.h"
+
+typedef struct AVFilterGraph {
+ const AVClass *av_class;
+ unsigned filter_count;
+ AVFilterContext **filters;
+
+ char *scale_sws_opts; ///< sws options to use for the auto-inserted scale filters
+ char *resample_lavr_opts; ///< libavresample options to use for the auto-inserted resample filters
+ char *aresample_swr_opts; ///< swr options to use for the auto-inserted aresample filters, Access ONLY through AVOptions
+
+ /**
+ * Private fields
+ *
+ * The following fields are for internal use only.
+ * Their type, offset, number and semantic can change without notice.
+ */
+
+ AVFilterLink **sink_links;
+ int sink_links_count;
+
+ unsigned disable_auto_convert;
+} AVFilterGraph;
+
+/**
+ * Allocate a filter graph.
+ */
+AVFilterGraph *avfilter_graph_alloc(void);
+
+/**
+ * Get a filter instance with name name from graph.
+ *
+ * @return the pointer to the found filter instance or NULL if it
+ * cannot be found.
+ */
+AVFilterContext *avfilter_graph_get_filter(AVFilterGraph *graph, char *name);
+
+/**
+ * Add an existing filter instance to a filter graph.
+ *
+ * @param graphctx the filter graph
+ * @param filter the filter to be added
+ */
+int avfilter_graph_add_filter(AVFilterGraph *graphctx, AVFilterContext *filter);
+
+/**
+ * Create and add a filter instance into an existing graph.
+ * The filter instance is created from the filter filt and inited
+ * with the parameters args and opaque.
+ *
+ * In case of success put in *filt_ctx the pointer to the created
+ * filter instance, otherwise set *filt_ctx to NULL.
+ *
+ * @param name the instance name to give to the created filter instance
+ * @param graph_ctx the filter graph
+ * @return a negative AVERROR error code in case of failure, a non
+ * negative value otherwise
+ */
+int avfilter_graph_create_filter(AVFilterContext **filt_ctx, AVFilter *filt,
+ const char *name, const char *args, void *opaque,
+ AVFilterGraph *graph_ctx);
+
+/**
+ * Enable or disable automatic format conversion inside the graph.
+ *
+ * Note that format conversion can still happen inside explicitly inserted
+ * scale and aconvert filters.
+ *
+ * @param flags any of the AVFILTER_AUTO_CONVERT_* constants
+ */
+void avfilter_graph_set_auto_convert(AVFilterGraph *graph, unsigned flags);
+
+enum {
+ AVFILTER_AUTO_CONVERT_ALL = 0, /**< all automatic conversions enabled */
+ AVFILTER_AUTO_CONVERT_NONE = -1, /**< all automatic conversions disabled */
+};
+
+/**
+ * Check validity and configure all the links and formats in the graph.
+ *
+ * @param graphctx the filter graph
+ * @param log_ctx context used for logging
+ * @return 0 in case of success, a negative AVERROR code otherwise
+ */
+int avfilter_graph_config(AVFilterGraph *graphctx, void *log_ctx);
+
+/**
+ * Free a graph, destroy its links, and set *graph to NULL.
+ * If *graph is NULL, do nothing.
+ */
+void avfilter_graph_free(AVFilterGraph **graph);
+
+/**
+ * A linked-list of the inputs/outputs of the filter chain.
+ *
+ * This is mainly useful for avfilter_graph_parse() / avfilter_graph_parse2(),
+ * where it is used to communicate open (unlinked) inputs and outputs from and
+ * to the caller.
+ * This struct specifies, per each not connected pad contained in the graph, the
+ * filter context and the pad index required for establishing a link.
+ */
+typedef struct AVFilterInOut {
+ /** unique name for this input/output in the list */
+ char *name;
+
+ /** filter context associated to this input/output */
+ AVFilterContext *filter_ctx;
+
+ /** index of the filt_ctx pad to use for linking */
+ int pad_idx;
+
+ /** next input/input in the list, NULL if this is the last */
+ struct AVFilterInOut *next;
+} AVFilterInOut;
+
+/**
+ * Allocate a single AVFilterInOut entry.
+ * Must be freed with avfilter_inout_free().
+ * @return allocated AVFilterInOut on success, NULL on failure.
+ */
+AVFilterInOut *avfilter_inout_alloc(void);
+
+/**
+ * Free the supplied list of AVFilterInOut and set *inout to NULL.
+ * If *inout is NULL, do nothing.
+ */
+void avfilter_inout_free(AVFilterInOut **inout);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @param graph the filter graph where to link the parsed graph context
+ * @param filters string to be parsed
+ * @param inputs pointer to a linked list to the inputs of the graph, may be NULL.
+ * If non-NULL, *inputs is updated to contain the list of open inputs
+ * after the parsing, should be freed with avfilter_inout_free().
+ * @param outputs pointer to a linked list to the outputs of the graph, may be NULL.
+ * If non-NULL, *outputs is updated to contain the list of open outputs
+ * after the parsing, should be freed with avfilter_inout_free().
+ * @return non negative on success, a negative AVERROR code on error
+ */
+int avfilter_graph_parse(AVFilterGraph *graph, const char *filters,
+ AVFilterInOut **inputs, AVFilterInOut **outputs,
+ void *log_ctx);
+
+/**
+ * Add a graph described by a string to a graph.
+ *
+ * @param[in] graph the filter graph where to link the parsed graph context
+ * @param[in] filters string to be parsed
+ * @param[out] inputs a linked list of all free (unlinked) inputs of the
+ * parsed graph will be returned here. It is to be freed
+ * by the caller using avfilter_inout_free().
+ * @param[out] outputs a linked list of all free (unlinked) outputs of the
+ * parsed graph will be returned here. It is to be freed by the
+ * caller using avfilter_inout_free().
+ * @return zero on success, a negative AVERROR code on error
+ *
+ * @note the difference between avfilter_graph_parse2() and
+ * avfilter_graph_parse() is that in avfilter_graph_parse(), the caller provides
+ * the lists of inputs and outputs, which therefore must be known before calling
+ * the function. On the other hand, avfilter_graph_parse2() \em returns the
+ * inputs and outputs that are left unlinked after parsing the graph and the
+ * caller then deals with them. Another difference is that in
+ * avfilter_graph_parse(), the inputs parameter describes inputs of the
+ * <em>already existing</em> part of the graph; i.e. from the point of view of
+ * the newly created part, they are outputs. Similarly the outputs parameter
+ * describes outputs of the already existing filters, which are provided as
+ * inputs to the parsed filters.
+ * avfilter_graph_parse2() takes the opposite approach -- it makes no reference
+ * whatsoever to already existing parts of the graph and the inputs parameter
+ * will on return contain inputs of the newly parsed part of the graph.
+ * Analogously the outputs parameter will contain outputs of the newly created
+ * filters.
+ */
+int avfilter_graph_parse2(AVFilterGraph *graph, const char *filters,
+ AVFilterInOut **inputs,
+ AVFilterInOut **outputs);
+
+
+/**
+ * Send a command to one or more filter instances.
+ *
+ * @param graph the filter graph
+ * @param target the filter(s) to which the command should be sent
+ * "all" sends to all filters
+ * otherwise it can be a filter or filter instance name
+ * which will send the command to all matching filters.
+ * @param cmd the command to sent, for handling simplicity all commands must be alphanumeric only
+ * @param arg the argument for the command
+ * @param res a buffer with size res_size where the filter(s) can return a response.
+ *
+ * @returns >=0 on success otherwise an error code.
+ * AVERROR(ENOSYS) on unsupported commands
+ */
+int avfilter_graph_send_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, char *res, int res_len, int flags);
+
+/**
+ * Queue a command for one or more filter instances.
+ *
+ * @param graph the filter graph
+ * @param target the filter(s) to which the command should be sent
+ * "all" sends to all filters
+ * otherwise it can be a filter or filter instance name
+ * which will send the command to all matching filters.
+ * @param cmd the command to sent, for handling simplicity all commands must be alphanummeric only
+ * @param arg the argument for the command
+ * @param ts time at which the command should be sent to the filter
+ *
+ * @note As this executes commands after this function returns, no return code
+ * from the filter is provided, also AVFILTER_CMD_FLAG_ONE is not supported.
+ */
+int avfilter_graph_queue_command(AVFilterGraph *graph, const char *target, const char *cmd, const char *arg, int flags, double ts);
+
+
+/**
+ * Dump a graph into a human-readable string representation.
+ *
+ * @param graph the graph to dump
+ * @param options formatting options; currently ignored
+ * @return a string, or NULL in case of memory allocation failure;
+ * the string must be freed using av_free
+ */
+char *avfilter_graph_dump(AVFilterGraph *graph, const char *options);
+
+/**
+ * Request a frame on the oldest sink link.
+ *
+ * If the request returns AVERROR_EOF, try the next.
+ *
+ * Note that this function is not meant to be the sole scheduling mechanism
+ * of a filtergraph, only a convenience function to help drain a filtergraph
+ * in a balanced way under normal circumstances.
+ *
+ * Also note that AVERROR_EOF does not mean that frames did not arrive on
+ * some of the sinks during the process.
+ * When there are multiple sink links, in case the requested link
+ * returns an EOF, this may cause a filter to flush pending frames
+ * which are sent to another sink link, although unrequested.
+ *
+ * @return the return value of ff_request_frame(),
+ * or AVERROR_EOF if all links returned AVERROR_EOF
+ */
+int avfilter_graph_request_oldest(AVFilterGraph *graph);
+
+#endif /* AVFILTER_AVFILTERGRAPH_H */
diff --git a/thirdparties/mac/include/libavfilter/buffersink.h b/thirdparties/mac/include/libavfilter/buffersink.h
new file mode 100644
index 0000000..6f8ac5c
--- /dev/null
+++ b/thirdparties/mac/include/libavfilter/buffersink.h
@@ -0,0 +1,150 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_BUFFERSINK_H
+#define AVFILTER_BUFFERSINK_H
+
+/**
+ * @file
+ * memory buffer sink API for audio and video
+ */
+
+#include "avfilter.h"
+
+/**
+ * Struct to use for initializing a buffersink context.
+ */
+typedef struct {
+ const enum AVPixelFormat *pixel_fmts; ///< list of allowed pixel formats, terminated by AV_PIX_FMT_NONE
+} AVBufferSinkParams;
+
+/**
+ * Create an AVBufferSinkParams structure.
+ *
+ * Must be freed with av_free().
+ */
+AVBufferSinkParams *av_buffersink_params_alloc(void);
+
+/**
+ * Struct to use for initializing an abuffersink context.
+ */
+typedef struct {
+ const enum AVSampleFormat *sample_fmts; ///< list of allowed sample formats, terminated by AV_SAMPLE_FMT_NONE
+ const int64_t *channel_layouts; ///< list of allowed channel layouts, terminated by -1
+ const int *channel_counts; ///< list of allowed channel counts, terminated by -1
+ int all_channel_counts; ///< if not 0, accept any channel count or layout
+ int *sample_rates; ///< list of allowed sample rates, terminated by -1
+} AVABufferSinkParams;
+
+/**
+ * Create an AVABufferSinkParams structure.
+ *
+ * Must be freed with av_free().
+ */
+AVABufferSinkParams *av_abuffersink_params_alloc(void);
+
+/**
+ * Set the frame size for an audio buffer sink.
+ *
+ * All calls to av_buffersink_get_buffer_ref will return a buffer with
+ * exactly the specified number of samples, or AVERROR(EAGAIN) if there is
+ * not enough. The last buffer at EOF will be padded with 0.
+ */
+void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size);
+
+/**
+ * Tell av_buffersink_get_buffer_ref() to read video/samples buffer
+ * reference, but not remove it from the buffer. This is useful if you
+ * need only to read a video/samples buffer, without to fetch it.
+ */
+#define AV_BUFFERSINK_FLAG_PEEK 1
+
+/**
+ * Tell av_buffersink_get_buffer_ref() not to request a frame from its input.
+ * If a frame is already buffered, it is read (and removed from the buffer),
+ * but if no frame is present, return AVERROR(EAGAIN).
+ */
+#define AV_BUFFERSINK_FLAG_NO_REQUEST 2
+
+/**
+ * Get an audio/video buffer data from buffer_sink and put it in bufref.
+ *
+ * This function works with both audio and video buffer sinks.
+ *
+ * @param buffer_sink pointer to a buffersink or abuffersink context
+ * @param flags a combination of AV_BUFFERSINK_FLAG_* flags
+ * @return >= 0 in case of success, a negative AVERROR code in case of
+ * failure
+ */
+int av_buffersink_get_buffer_ref(AVFilterContext *buffer_sink,
+ AVFilterBufferRef **bufref, int flags);
+
+
+/**
+ * Get the number of immediately available frames.
+ */
+int av_buffersink_poll_frame(AVFilterContext *ctx);
+
+/**
+ * Get the frame rate of the input.
+ */
+AVRational av_buffersink_get_frame_rate(AVFilterContext *ctx);
+
+/**
+ * @defgroup libav_api Libav API
+ * @{
+ */
+
+/**
+ * Get a buffer with filtered data from sink and put it in buf.
+ *
+ * @param ctx pointer to a context of a buffersink or abuffersink AVFilter.
+ * @param buf pointer to the buffer will be written here if buf is non-NULL. buf
+ * must be freed by the caller using avfilter_unref_buffer().
+ * Buf may also be NULL to query whether a buffer is ready to be
+ * output.
+ *
+ * @return >= 0 in case of success, a negative AVERROR code in case of
+ * failure.
+ */
+int av_buffersink_read(AVFilterContext *ctx, AVFilterBufferRef **buf);
+
+/**
+ * Same as av_buffersink_read, but with the ability to specify the number of
+ * samples read. This function is less efficient than av_buffersink_read(),
+ * because it copies the data around.
+ *
+ * @param ctx pointer to a context of the abuffersink AVFilter.
+ * @param buf pointer to the buffer will be written here if buf is non-NULL. buf
+ * must be freed by the caller using avfilter_unref_buffer(). buf
+ * will contain exactly nb_samples audio samples, except at the end
+ * of stream, when it can contain less than nb_samples.
+ * Buf may also be NULL to query whether a buffer is ready to be
+ * output.
+ *
+ * @warning do not mix this function with av_buffersink_read(). Use only one or
+ * the other with a single sink, not both.
+ */
+int av_buffersink_read_samples(AVFilterContext *ctx, AVFilterBufferRef **buf,
+ int nb_samples);
+
+/**
+ * @}
+ */
+
+#endif /* AVFILTER_BUFFERSINK_H */
diff --git a/thirdparties/mac/include/libavfilter/buffersrc.h b/thirdparties/mac/include/libavfilter/buffersrc.h
new file mode 100644
index 0000000..7f3c8d8
--- /dev/null
+++ b/thirdparties/mac/include/libavfilter/buffersrc.h
@@ -0,0 +1,95 @@
+/*
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_BUFFERSRC_H
+#define AVFILTER_BUFFERSRC_H
+
+/**
+ * @file
+ * Memory buffer source API.
+ */
+
+#include "libavcodec/avcodec.h"
+#include "avfilter.h"
+
+enum {
+
+ /**
+ * Do not check for format changes.
+ */
+ AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT = 1,
+
+ /**
+ * Do not copy buffer data.
+ */
+ AV_BUFFERSRC_FLAG_NO_COPY = 2,
+
+ /**
+ * Immediately push the frame to the output.
+ */
+ AV_BUFFERSRC_FLAG_PUSH = 4,
+
+};
+
+/**
+ * Add buffer data in picref to buffer_src.
+ *
+ * @param buffer_src pointer to a buffer source context
+ * @param picref a buffer reference, or NULL to mark EOF
+ * @param flags a combination of AV_BUFFERSRC_FLAG_*
+ * @return >= 0 in case of success, a negative AVERROR code
+ * in case of failure
+ */
+int av_buffersrc_add_ref(AVFilterContext *buffer_src,
+ AVFilterBufferRef *picref, int flags);
+
+/**
+ * Get the number of failed requests.
+ *
+ * A failed request is when the request_frame method is called while no
+ * frame is present in the buffer.
+ * The number is reset when a frame is added.
+ */
+unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src);
+
+#ifdef FF_API_BUFFERSRC_BUFFER
+/**
+ * Add a buffer to the filtergraph s.
+ *
+ * @param buf buffer containing frame data to be passed down the filtergraph.
+ * This function will take ownership of buf, the user must not free it.
+ * A NULL buf signals EOF -- i.e. no more frames will be sent to this filter.
+ * @deprecated Use av_buffersrc_add_ref(s, picref, AV_BUFFERSRC_FLAG_NO_COPY) instead.
+ */
+attribute_deprecated
+int av_buffersrc_buffer(AVFilterContext *s, AVFilterBufferRef *buf);
+#endif
+
+/**
+ * Add a frame to the buffer source.
+ *
+ * @param s an instance of the buffersrc filter.
+ * @param frame frame to be added.
+ *
+ * @warning frame data will be memcpy()ed, which may be a big performance
+ * hit. Use av_buffersrc_buffer() to avoid copying the data.
+ */
+int av_buffersrc_write_frame(AVFilterContext *s, const AVFrame *frame);
+
+#endif /* AVFILTER_BUFFERSRC_H */
diff --git a/thirdparties/mac/include/libavfilter/version.h b/thirdparties/mac/include/libavfilter/version.h
new file mode 100644
index 0000000..29bc060
--- /dev/null
+++ b/thirdparties/mac/include/libavfilter/version.h
@@ -0,0 +1,64 @@
+/*
+ * Version macros.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFILTER_VERSION_H
+#define AVFILTER_VERSION_H
+
+/**
+ * @file
+ * Libavfilter version macros
+ */
+
+#include "libavutil/avutil.h"
+
+#define LIBAVFILTER_VERSION_MAJOR 3
+#define LIBAVFILTER_VERSION_MINOR 42
+#define LIBAVFILTER_VERSION_MICRO 103
+
+#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
+ LIBAVFILTER_VERSION_MINOR, \
+ LIBAVFILTER_VERSION_MICRO)
+#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \
+ LIBAVFILTER_VERSION_MINOR, \
+ LIBAVFILTER_VERSION_MICRO)
+#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT
+
+#define LIBAVFILTER_IDENT "Lavfi" AV_STRINGIFY(LIBAVFILTER_VERSION)
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ */
+
+#ifndef FF_API_AVFILTERPAD_PUBLIC
+#define FF_API_AVFILTERPAD_PUBLIC (LIBAVFILTER_VERSION_MAJOR < 4)
+#endif
+#ifndef FF_API_FOO_COUNT
+#define FF_API_FOO_COUNT (LIBAVFILTER_VERSION_MAJOR < 4)
+#endif
+#ifndef FF_API_FILL_FRAME
+#define FF_API_FILL_FRAME (LIBAVFILTER_VERSION_MAJOR < 4)
+#endif
+#ifndef FF_API_BUFFERSRC_BUFFER
+#define FF_API_BUFFERSRC_BUFFER (LIBAVFILTER_VERSION_MAJOR < 4)
+#endif
+
+#endif /* AVFILTER_VERSION_H */
diff --git a/thirdparties/mac/include/libavformat/avformat.h b/thirdparties/mac/include/libavformat/avformat.h
new file mode 100644
index 0000000..d23d0e8
--- /dev/null
+++ b/thirdparties/mac/include/libavformat/avformat.h
@@ -0,0 +1,2135 @@
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_AVFORMAT_H
+#define AVFORMAT_AVFORMAT_H
+
+/**
+ * @file
+ * @ingroup libavf
+ * Main libavformat public API header
+ */
+
+/**
+ * @defgroup libavf I/O and Muxing/Demuxing Library
+ * @{
+ *
+ * Libavformat (lavf) is a library for dealing with various media container
+ * formats. Its main two purposes are demuxing - i.e. splitting a media file
+ * into component streams, and the reverse process of muxing - writing supplied
+ * data in a specified container format. It also has an @ref lavf_io
+ * "I/O module" which supports a number of protocols for accessing the data (e.g.
+ * file, tcp, http and others). Before using lavf, you need to call
+ * av_register_all() to register all compiled muxers, demuxers and protocols.
+ * Unless you are absolutely sure you won't use libavformat's network
+ * capabilities, you should also call avformat_network_init().
+ *
+ * A supported input format is described by an AVInputFormat struct, conversely
+ * an output format is described by AVOutputFormat. You can iterate over all
+ * registered input/output formats using the av_iformat_next() /
+ * av_oformat_next() functions. The protocols layer is not part of the public
+ * API, so you can only get the names of supported protocols with the
+ * avio_enum_protocols() function.
+ *
+ * Main lavf structure used for both muxing and demuxing is AVFormatContext,
+ * which exports all information about the file being read or written. As with
+ * most Libavformat structures, its size is not part of public ABI, so it cannot be
+ * allocated on stack or directly with av_malloc(). To create an
+ * AVFormatContext, use avformat_alloc_context() (some functions, like
+ * avformat_open_input() might do that for you).
+ *
+ * Most importantly an AVFormatContext contains:
+ * @li the @ref AVFormatContext.iformat "input" or @ref AVFormatContext.oformat
+ * "output" format. It is either autodetected or set by user for input;
+ * always set by user for output.
+ * @li an @ref AVFormatContext.streams "array" of AVStreams, which describe all
+ * elementary streams stored in the file. AVStreams are typically referred to
+ * using their index in this array.
+ * @li an @ref AVFormatContext.pb "I/O context". It is either opened by lavf or
+ * set by user for input, always set by user for output (unless you are dealing
+ * with an AVFMT_NOFILE format).
+ *
+ * @section lavf_options Passing options to (de)muxers
+ * Lavf allows to configure muxers and demuxers using the @ref avoptions
+ * mechanism. Generic (format-independent) libavformat options are provided by
+ * AVFormatContext, they can be examined from a user program by calling
+ * av_opt_next() / av_opt_find() on an allocated AVFormatContext (or its AVClass
+ * from avformat_get_class()). Private (format-specific) options are provided by
+ * AVFormatContext.priv_data if and only if AVInputFormat.priv_class /
+ * AVOutputFormat.priv_class of the corresponding format struct is non-NULL.
+ * Further options may be provided by the @ref AVFormatContext.pb "I/O context",
+ * if its AVClass is non-NULL, and the protocols layer. See the discussion on
+ * nesting in @ref avoptions documentation to learn how to access those.
+ *
+ * @defgroup lavf_decoding Demuxing
+ * @{
+ * Demuxers read a media file and split it into chunks of data (@em packets). A
+ * @ref AVPacket "packet" contains one or more encoded frames which belongs to a
+ * single elementary stream. In the lavf API this process is represented by the
+ * avformat_open_input() function for opening a file, av_read_frame() for
+ * reading a single packet and finally avformat_close_input(), which does the
+ * cleanup.
+ *
+ * @section lavf_decoding_open Opening a media file
+ * The minimum information required to open a file is its URL or filename, which
+ * is passed to avformat_open_input(), as in the following code:
+ * @code
+ * const char *url = "in.mp3";
+ * AVFormatContext *s = NULL;
+ * int ret = avformat_open_input(&s, url, NULL, NULL);
+ * if (ret < 0)
+ * abort();
+ * @endcode
+ * The above code attempts to allocate an AVFormatContext, open the
+ * specified file (autodetecting the format) and read the header, exporting the
+ * information stored there into s. Some formats do not have a header or do not
+ * store enough information there, so it is recommended that you call the
+ * avformat_find_stream_info() function which tries to read and decode a few
+ * frames to find missing information.
+ *
+ * In some cases you might want to preallocate an AVFormatContext yourself with
+ * avformat_alloc_context() and do some tweaking on it before passing it to
+ * avformat_open_input(). One such case is when you want to use custom functions
+ * for reading input data instead of lavf internal I/O layer.
+ * To do that, create your own AVIOContext with avio_alloc_context(), passing
+ * your reading callbacks to it. Then set the @em pb field of your
+ * AVFormatContext to newly created AVIOContext.
+ *
+ * Since the format of the opened file is in general not known until after
+ * avformat_open_input() has returned, it is not possible to set demuxer private
+ * options on a preallocated context. Instead, the options should be passed to
+ * avformat_open_input() wrapped in an AVDictionary:
+ * @code
+ * AVDictionary *options = NULL;
+ * av_dict_set(&options, "video_size", "640x480", 0);
+ * av_dict_set(&options, "pixel_format", "rgb24", 0);
+ *
+ * if (avformat_open_input(&s, url, NULL, &options) < 0)
+ * abort();
+ * av_dict_free(&options);
+ * @endcode
+ * This code passes the private options 'video_size' and 'pixel_format' to the
+ * demuxer. They would be necessary for e.g. the rawvideo demuxer, since it
+ * cannot know how to interpret raw video data otherwise. If the format turns
+ * out to be something different than raw video, those options will not be
+ * recognized by the demuxer and therefore will not be applied. Such unrecognized
+ * options are then returned in the options dictionary (recognized options are
+ * consumed). The calling program can handle such unrecognized options as it
+ * wishes, e.g.
+ * @code
+ * AVDictionaryEntry *e;
+ * if (e = av_dict_get(options, "", NULL, AV_DICT_IGNORE_SUFFIX)) {
+ * fprintf(stderr, "Option %s not recognized by the demuxer.\n", e->key);
+ * abort();
+ * }
+ * @endcode
+ *
+ * After you have finished reading the file, you must close it with
+ * avformat_close_input(). It will free everything associated with the file.
+ *
+ * @section lavf_decoding_read Reading from an opened file
+ * Reading data from an opened AVFormatContext is done by repeatedly calling
+ * av_read_frame() on it. Each call, if successful, will return an AVPacket
+ * containing encoded data for one AVStream, identified by
+ * AVPacket.stream_index. This packet may be passed straight into the libavcodec
+ * decoding functions avcodec_decode_video2(), avcodec_decode_audio4() or
+ * avcodec_decode_subtitle2() if the caller wishes to decode the data.
+ *
+ * AVPacket.pts, AVPacket.dts and AVPacket.duration timing information will be
+ * set if known. They may also be unset (i.e. AV_NOPTS_VALUE for
+ * pts/dts, 0 for duration) if the stream does not provide them. The timing
+ * information will be in AVStream.time_base units, i.e. it has to be
+ * multiplied by the timebase to convert them to seconds.
+ *
+ * If AVPacket.destruct is set on the returned packet, then the packet is
+ * allocated dynamically and the user may keep it indefinitely.
+ * Otherwise, if AVPacket.destruct is NULL, the packet data is backed by a
+ * static storage somewhere inside the demuxer and the packet is only valid
+ * until the next av_read_frame() call or closing the file. If the caller
+ * requires a longer lifetime, av_dup_packet() will make an av_malloc()ed copy
+ * of it.
+ * In both cases, the packet must be freed with av_free_packet() when it is no
+ * longer needed.
+ *
+ * @section lavf_decoding_seek Seeking
+ * @}
+ *
+ * @defgroup lavf_encoding Muxing
+ * @{
+ * @}
+ *
+ * @defgroup lavf_io I/O Read/Write
+ * @{
+ * @}
+ *
+ * @defgroup lavf_codec Demuxers
+ * @{
+ * @defgroup lavf_codec_native Native Demuxers
+ * @{
+ * @}
+ * @defgroup lavf_codec_wrappers External library wrappers
+ * @{
+ * @}
+ * @}
+ * @defgroup lavf_protos I/O Protocols
+ * @{
+ * @}
+ * @defgroup lavf_internal Internal
+ * @{
+ * @}
+ * @}
+ *
+ */
+
+#include <time.h>
+#include <stdio.h> /* FILE */
+#include "libavcodec/avcodec.h"
+#include "libavutil/dict.h"
+#include "libavutil/log.h"
+
+#include "avio.h"
+#include "libavformat/version.h"
+
+#if FF_API_AV_GETTIME
+#include "libavutil/time.h"
+#endif
+
+struct AVFormatContext;
+
+
+/**
+ * @defgroup metadata_api Public Metadata API
+ * @{
+ * @ingroup libavf
+ * The metadata API allows libavformat to export metadata tags to a client
+ * application when demuxing. Conversely it allows a client application to
+ * set metadata when muxing.
+ *
+ * Metadata is exported or set as pairs of key/value strings in the 'metadata'
+ * fields of the AVFormatContext, AVStream, AVChapter and AVProgram structs
+ * using the @ref lavu_dict "AVDictionary" API. Like all strings in FFmpeg,
+ * metadata is assumed to be UTF-8 encoded Unicode. Note that metadata
+ * exported by demuxers isn't checked to be valid UTF-8 in most cases.
+ *
+ * Important concepts to keep in mind:
+ * - Keys are unique; there can never be 2 tags with the same key. This is
+ * also meant semantically, i.e., a demuxer should not knowingly produce
+ * several keys that are literally different but semantically identical.
+ * E.g., key=Author5, key=Author6. In this example, all authors must be
+ * placed in the same tag.
+ * - Metadata is flat, not hierarchical; there are no subtags. If you
+ * want to store, e.g., the email address of the child of producer Alice
+ * and actor Bob, that could have key=alice_and_bobs_childs_email_address.
+ * - Several modifiers can be applied to the tag name. This is done by
+ * appending a dash character ('-') and the modifier name in the order
+ * they appear in the list below -- e.g. foo-eng-sort, not foo-sort-eng.
+ * - language -- a tag whose value is localized for a particular language
+ * is appended with the ISO 639-2/B 3-letter language code.
+ * For example: Author-ger=Michael, Author-eng=Mike
+ * The original/default language is in the unqualified "Author" tag.
+ * A demuxer should set a default if it sets any translated tag.
+ * - sorting -- a modified version of a tag that should be used for
+ * sorting will have '-sort' appended. E.g. artist="The Beatles",
+ * artist-sort="Beatles, The".
+ *
+ * - Demuxers attempt to export metadata in a generic format, however tags
+ * with no generic equivalents are left as they are stored in the container.
+ * Follows a list of generic tag names:
+ *
+ @verbatim
+ album -- name of the set this work belongs to
+ album_artist -- main creator of the set/album, if different from artist.
+ e.g. "Various Artists" for compilation albums.
+ artist -- main creator of the work
+ comment -- any additional description of the file.
+ composer -- who composed the work, if different from artist.
+ copyright -- name of copyright holder.
+ creation_time-- date when the file was created, preferably in ISO 8601.
+ date -- date when the work was created, preferably in ISO 8601.
+ disc -- number of a subset, e.g. disc in a multi-disc collection.
+ encoder -- name/settings of the software/hardware that produced the file.
+ encoded_by -- person/group who created the file.
+ filename -- original name of the file.
+ genre -- <self-evident>.
+ language -- main language in which the work is performed, preferably
+ in ISO 639-2 format. Multiple languages can be specified by
+ separating them with commas.
+ performer -- artist who performed the work, if different from artist.
+ E.g for "Also sprach Zarathustra", artist would be "Richard
+ Strauss" and performer "London Philharmonic Orchestra".
+ publisher -- name of the label/publisher.
+ service_name -- name of the service in broadcasting (channel name).
+ service_provider -- name of the service provider in broadcasting.
+ title -- name of the work.
+ track -- number of this work in the set, can be in form current/total.
+ variant_bitrate -- the total bitrate of the bitrate variant that the current stream is part of
+ @endverbatim
+ *
+ * Look in the examples section for an application example how to use the Metadata API.
+ *
+ * @}
+ */
+
+/* packet functions */
+
+
+/**
+ * Allocate and read the payload of a packet and initialize its
+ * fields with default values.
+ *
+ * @param pkt packet
+ * @param size desired payload size
+ * @return >0 (read size) if OK, AVERROR_xxx otherwise
+ */
+int av_get_packet(AVIOContext *s, AVPacket *pkt, int size);
+
+
+/**
+ * Read data and append it to the current content of the AVPacket.
+ * If pkt->size is 0 this is identical to av_get_packet.
+ * Note that this uses av_grow_packet and thus involves a realloc
+ * which is inefficient. Thus this function should only be used
+ * when there is no reasonable way to know (an upper bound of)
+ * the final size.
+ *
+ * @param pkt packet
+ * @param size amount of data to read
+ * @return >0 (read size) if OK, AVERROR_xxx otherwise, previous data
+ * will not be lost even if an error occurs.
+ */
+int av_append_packet(AVIOContext *s, AVPacket *pkt, int size);
+
+/*************************************************/
+/* fractional numbers for exact pts handling */
+
+/**
+ * The exact value of the fractional number is: 'val + num / den'.
+ * num is assumed to be 0 <= num < den.
+ */
+typedef struct AVFrac {
+ int64_t val, num, den;
+} AVFrac;
+
+/*************************************************/
+/* input/output formats */
+
+struct AVCodecTag;
+
+/**
+ * This structure contains the data a format has to probe a file.
+ */
+typedef struct AVProbeData {
+ const char *filename;
+ unsigned char *buf; /**< Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero. */
+ int buf_size; /**< Size of buf except extra allocated bytes */
+} AVProbeData;
+
+#define AVPROBE_SCORE_MAX 100 ///< maximum score, half of that is used for file-extension-based detection
+#define AVPROBE_SCORE_RETRY (AVPROBE_SCORE_MAX/4)
+#define AVPROBE_PADDING_SIZE 32 ///< extra allocated bytes at the end of the probe buffer
+
+/// Demuxer will use avio_open, no opened file should be provided by the caller.
+#define AVFMT_NOFILE 0x0001
+#define AVFMT_NEEDNUMBER 0x0002 /**< Needs '%d' in filename. */
+#define AVFMT_SHOW_IDS 0x0008 /**< Show format stream IDs numbers. */
+#define AVFMT_RAWPICTURE 0x0020 /**< Format wants AVPicture structure for
+ raw picture data. */
+#define AVFMT_GLOBALHEADER 0x0040 /**< Format wants global header. */
+#define AVFMT_NOTIMESTAMPS 0x0080 /**< Format does not need / have any timestamps. */
+#define AVFMT_GENERIC_INDEX 0x0100 /**< Use generic index building code. */
+#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */
+#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */
+#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */
+#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */
+#define AVFMT_NOBINSEARCH 0x2000 /**< Format does not allow to fallback to binary search via read_timestamp */
+#define AVFMT_NOGENSEARCH 0x4000 /**< Format does not allow to fallback to generic search */
+#define AVFMT_NO_BYTE_SEEK 0x8000 /**< Format does not allow seeking by bytes */
+#define AVFMT_ALLOW_FLUSH 0x10000 /**< Format allows flushing. If not set, the muxer will not receive a NULL packet in the write_packet function. */
+#if LIBAVFORMAT_VERSION_MAJOR <= 54
+#define AVFMT_TS_NONSTRICT 0x8020000 //we try to be compatible to the ABIs of ffmpeg and major forks
+#else
+#define AVFMT_TS_NONSTRICT 0x20000
+#endif
+ /**< Format does not require strictly
+ increasing timestamps, but they must
+ still be monotonic */
+
+#define AVFMT_SEEK_TO_PTS 0x4000000 /**< Seeking is based on PTS */
+
+/**
+ * @addtogroup lavf_encoding
+ * @{
+ */
+typedef struct AVOutputFormat {
+ const char *name;
+ /**
+ * Descriptive name for the format, meant to be more human-readable
+ * than name. You should use the NULL_IF_CONFIG_SMALL() macro
+ * to define it.
+ */
+ const char *long_name;
+ const char *mime_type;
+ const char *extensions; /**< comma-separated filename extensions */
+ /* output support */
+ enum AVCodecID audio_codec; /**< default audio codec */
+ enum AVCodecID video_codec; /**< default video codec */
+ enum AVCodecID subtitle_codec; /**< default subtitle codec */
+ /**
+ * can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_RAWPICTURE,
+ * AVFMT_GLOBALHEADER, AVFMT_NOTIMESTAMPS, AVFMT_VARIABLE_FPS,
+ * AVFMT_NODIMENSIONS, AVFMT_NOSTREAMS, AVFMT_ALLOW_FLUSH,
+ * AVFMT_TS_NONSTRICT
+ */
+ int flags;
+
+ /**
+ * List of supported codec_id-codec_tag pairs, ordered by "better
+ * choice first". The arrays are all terminated by AV_CODEC_ID_NONE.
+ */
+ const struct AVCodecTag * const *codec_tag;
+
+
+ const AVClass *priv_class; ///< AVClass for the private context
+
+ /*****************************************************************
+ * No fields below this line are part of the public API. They
+ * may not be used outside of libavformat and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+ struct AVOutputFormat *next;
+ /**
+ * size of private data so that it can be allocated in the wrapper
+ */
+ int priv_data_size;
+
+ int (*write_header)(struct AVFormatContext *);
+ /**
+ * Write a packet. If AVFMT_ALLOW_FLUSH is set in flags,
+ * pkt can be NULL in order to flush data buffered in the muxer.
+ * When flushing, return 0 if there still is more data to flush,
+ * or 1 if everything was flushed and there is no more buffered
+ * data.
+ */
+ int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
+ int (*write_trailer)(struct AVFormatContext *);
+ /**
+ * Currently only used to set pixel format if not YUV420P.
+ */
+ int (*interleave_packet)(struct AVFormatContext *, AVPacket *out,
+ AVPacket *in, int flush);
+ /**
+ * Test if the given codec can be stored in this container.
+ *
+ * @return 1 if the codec is supported, 0 if it is not.
+ * A negative number if unknown.
+ * MKTAG('A', 'P', 'I', 'C') if the codec is only supported as AV_DISPOSITION_ATTACHED_PIC
+ */
+ int (*query_codec)(enum AVCodecID id, int std_compliance);
+
+ void (*get_output_timestamp)(struct AVFormatContext *s, int stream,
+ int64_t *dts, int64_t *wall);
+} AVOutputFormat;
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup lavf_decoding
+ * @{
+ */
+typedef struct AVInputFormat {
+ /**
+ * A comma separated list of short names for the format. New names
+ * may be appended with a minor bump.
+ */
+ const char *name;
+
+ /**
+ * Descriptive name for the format, meant to be more human-readable
+ * than name. You should use the NULL_IF_CONFIG_SMALL() macro
+ * to define it.
+ */
+ const char *long_name;
+
+ /**
+ * Can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_SHOW_IDS,
+ * AVFMT_GENERIC_INDEX, AVFMT_TS_DISCONT, AVFMT_NOBINSEARCH,
+ * AVFMT_NOGENSEARCH, AVFMT_NO_BYTE_SEEK, AVFMT_SEEK_TO_PTS.
+ */
+ int flags;
+
+ /**
+ * If extensions are defined, then no probe is done. You should
+ * usually not use extension format guessing because it is not
+ * reliable enough
+ */
+ const char *extensions;
+
+ const struct AVCodecTag * const *codec_tag;
+
+ const AVClass *priv_class; ///< AVClass for the private context
+
+ /*****************************************************************
+ * No fields below this line are part of the public API. They
+ * may not be used outside of libavformat and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+ struct AVInputFormat *next;
+
+ /**
+ * Raw demuxers store their codec ID here.
+ */
+ int raw_codec_id;
+
+ /**
+ * Size of private data so that it can be allocated in the wrapper.
+ */
+ int priv_data_size;
+
+ /**
+ * Tell if a given file has a chance of being parsed as this format.
+ * The buffer provided is guaranteed to be AVPROBE_PADDING_SIZE bytes
+ * big so you do not have to check for that unless you need more.
+ */
+ int (*read_probe)(AVProbeData *);
+
+ /**
+ * Read the format header and initialize the AVFormatContext
+ * structure. Return 0 if OK. Only used in raw format right
+ * now. 'avformat_new_stream' should be called to create new streams.
+ */
+ int (*read_header)(struct AVFormatContext *);
+
+ /**
+ * Read one packet and put it in 'pkt'. pts and flags are also
+ * set. 'avformat_new_stream' can be called only if the flag
+ * AVFMTCTX_NOHEADER is used and only in the calling thread (not in a
+ * background thread).
+ * @return 0 on success, < 0 on error.
+ * When returning an error, pkt must not have been allocated
+ * or must be freed before returning
+ */
+ int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
+
+ /**
+ * Close the stream. The AVFormatContext and AVStreams are not
+ * freed by this function
+ */
+ int (*read_close)(struct AVFormatContext *);
+
+ /**
+ * Seek to a given timestamp relative to the frames in
+ * stream component stream_index.
+ * @param stream_index Must not be -1.
+ * @param flags Selects which direction should be preferred if no exact
+ * match is available.
+ * @return >= 0 on success (but not necessarily the new offset)
+ */
+ int (*read_seek)(struct AVFormatContext *,
+ int stream_index, int64_t timestamp, int flags);
+
+ /**
+ * Get the next timestamp in stream[stream_index].time_base units.
+ * @return the timestamp or AV_NOPTS_VALUE if an error occurred
+ */
+ int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
+ int64_t *pos, int64_t pos_limit);
+
+ /**
+ * Start/resume playing - only meaningful if using a network-based format
+ * (RTSP).
+ */
+ int (*read_play)(struct AVFormatContext *);
+
+ /**
+ * Pause playing - only meaningful if using a network-based format
+ * (RTSP).
+ */
+ int (*read_pause)(struct AVFormatContext *);
+
+ /**
+ * Seek to timestamp ts.
+ * Seeking will be done so that the point from which all active streams
+ * can be presented successfully will be closest to ts and within min/max_ts.
+ * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
+ */
+ int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
+} AVInputFormat;
+/**
+ * @}
+ */
+
+enum AVStreamParseType {
+ AVSTREAM_PARSE_NONE,
+ AVSTREAM_PARSE_FULL, /**< full parsing and repack */
+ AVSTREAM_PARSE_HEADERS, /**< Only parse headers, do not repack. */
+ AVSTREAM_PARSE_TIMESTAMPS, /**< full parsing and interpolation of timestamps for frames not starting on a packet boundary */
+ AVSTREAM_PARSE_FULL_ONCE, /**< full parsing and repack of the first frame only, only implemented for H.264 currently */
+ AVSTREAM_PARSE_FULL_RAW=MKTAG(0,'R','A','W'), /**< full parsing and repack with timestamp and position generation by parser for raw
+ this assumes that each packet in the file contains no demuxer level headers and
+ just codec level data, otherwise position generation would fail */
+};
+
+typedef struct AVIndexEntry {
+ int64_t pos;
+ int64_t timestamp; /**<
+ * Timestamp in AVStream.time_base units, preferably the time from which on correctly decoded frames are available
+ * when seeking to this entry. That means preferable PTS on keyframe based formats.
+ * But demuxers can choose to store a different timestamp, if it is more convenient for the implementation or nothing better
+ * is known
+ */
+#define AVINDEX_KEYFRAME 0x0001
+ int flags:2;
+ int size:30; //Yeah, trying to keep the size of this small to reduce memory requirements (it is 24 vs. 32 bytes due to possible 8-byte alignment).
+ int min_distance; /**< Minimum distance between this and the previous keyframe, used to avoid unneeded searching. */
+} AVIndexEntry;
+
+#define AV_DISPOSITION_DEFAULT 0x0001
+#define AV_DISPOSITION_DUB 0x0002
+#define AV_DISPOSITION_ORIGINAL 0x0004
+#define AV_DISPOSITION_COMMENT 0x0008
+#define AV_DISPOSITION_LYRICS 0x0010
+#define AV_DISPOSITION_KARAOKE 0x0020
+
+/**
+ * Track should be used during playback by default.
+ * Useful for subtitle track that should be displayed
+ * even when user did not explicitly ask for subtitles.
+ */
+#define AV_DISPOSITION_FORCED 0x0040
+#define AV_DISPOSITION_HEARING_IMPAIRED 0x0080 /**< stream for hearing impaired audiences */
+#define AV_DISPOSITION_VISUAL_IMPAIRED 0x0100 /**< stream for visual impaired audiences */
+#define AV_DISPOSITION_CLEAN_EFFECTS 0x0200 /**< stream without voice */
+/**
+ * The stream is stored in the file as an attached picture/"cover art" (e.g.
+ * APIC frame in ID3v2). The single packet associated with it will be returned
+ * among the first few packets read from the file unless seeking takes place.
+ * It can also be accessed at any time in AVStream.attached_pic.
+ */
+#define AV_DISPOSITION_ATTACHED_PIC 0x0400
+
+/**
+ * Options for behavior on timestamp wrap detection.
+ */
+#define AV_PTS_WRAP_IGNORE 0 ///< ignore the wrap
+#define AV_PTS_WRAP_ADD_OFFSET 1 ///< add the format specific offset on wrap detection
+#define AV_PTS_WRAP_SUB_OFFSET -1 ///< subtract the format specific offset on wrap detection
+
+/**
+ * Stream structure.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVStream) must not be used outside libav*.
+ */
+typedef struct AVStream {
+ int index; /**< stream index in AVFormatContext */
+ /**
+ * Format-specific stream ID.
+ * decoding: set by libavformat
+ * encoding: set by the user, replaced by libavformat if left unset
+ */
+ int id;
+ /**
+ * Codec context associated with this stream. Allocated and freed by
+ * libavformat.
+ *
+ * - decoding: The demuxer exports codec information stored in the headers
+ * here.
+ * - encoding: The user sets codec information, the muxer writes it to the
+ * output. Mandatory fields as specified in AVCodecContext
+ * documentation must be set even if this AVCodecContext is
+ * not actually used for encoding.
+ */
+ AVCodecContext *codec;
+#if FF_API_R_FRAME_RATE
+ /**
+ * Real base framerate of the stream.
+ * This is the lowest framerate with which all timestamps can be
+ * represented accurately (it is the least common multiple of all
+ * framerates in the stream). Note, this value is just a guess!
+ * For example, if the time base is 1/90000 and all frames have either
+ * approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1.
+ */
+ AVRational r_frame_rate;
+#endif
+ void *priv_data;
+
+ /**
+ * encoding: pts generation when outputting stream
+ */
+ struct AVFrac pts;
+
+ /**
+ * This is the fundamental unit of time (in seconds) in terms
+ * of which frame timestamps are represented.
+ *
+ * decoding: set by libavformat
+ * encoding: set by libavformat in avformat_write_header. The muxer may use the
+ * user-provided value of @ref AVCodecContext.time_base "codec->time_base"
+ * as a hint.
+ */
+ AVRational time_base;
+
+ /**
+ * Decoding: pts of the first frame of the stream in presentation order, in stream time base.
+ * Only set this if you are absolutely 100% sure that the value you set
+ * it to really is the pts of the first frame.
+ * This may be undefined (AV_NOPTS_VALUE).
+ * @note The ASF header does NOT contain a correct start_time the ASF
+ * demuxer must NOT set this.
+ */
+ int64_t start_time;
+
+ /**
+ * Decoding: duration of the stream, in stream time base.
+ * If a source file does not specify a duration, but does specify
+ * a bitrate, this value will be estimated from bitrate and file size.
+ */
+ int64_t duration;
+
+ int64_t nb_frames; ///< number of frames in this stream if known or 0
+
+ int disposition; /**< AV_DISPOSITION_* bit field */
+
+ enum AVDiscard discard; ///< Selects which packets can be discarded at will and do not need to be demuxed.
+
+ /**
+ * sample aspect ratio (0 if unknown)
+ * - encoding: Set by user.
+ * - decoding: Set by libavformat.
+ */
+ AVRational sample_aspect_ratio;
+
+ AVDictionary *metadata;
+
+ /**
+ * Average framerate
+ */
+ AVRational avg_frame_rate;
+
+ /**
+ * For streams with AV_DISPOSITION_ATTACHED_PIC disposition, this packet
+ * will contain the attached picture.
+ *
+ * decoding: set by libavformat, must not be modified by the caller.
+ * encoding: unused
+ */
+ AVPacket attached_pic;
+
+ /*****************************************************************
+ * All fields below this line are not part of the public API. They
+ * may not be used outside of libavformat and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+
+ /**
+ * Stream information used internally by av_find_stream_info()
+ */
+#define MAX_STD_TIMEBASES (60*12+6)
+ struct {
+ int64_t last_dts;
+ int64_t duration_gcd;
+ int duration_count;
+ double (*duration_error)[2][MAX_STD_TIMEBASES];
+ int64_t codec_info_duration;
+ int64_t codec_info_duration_fields;
+ int found_decoder;
+
+ int64_t last_duration;
+
+ /**
+ * Those are used for average framerate estimation.
+ */
+ int64_t fps_first_dts;
+ int fps_first_dts_idx;
+ int64_t fps_last_dts;
+ int fps_last_dts_idx;
+
+ } *info;
+
+ int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */
+
+ // Timestamp generation support:
+ /**
+ * Timestamp corresponding to the last dts sync point.
+ *
+ * Initialized when AVCodecParserContext.dts_sync_point >= 0 and
+ * a DTS is received from the underlying container. Otherwise set to
+ * AV_NOPTS_VALUE by default.
+ */
+ int64_t reference_dts;
+ int64_t first_dts;
+ int64_t cur_dts;
+ int64_t last_IP_pts;
+ int last_IP_duration;
+
+ /**
+ * Number of packets to buffer for codec probing
+ */
+#define MAX_PROBE_PACKETS 2500
+ int probe_packets;
+
+ /**
+ * Number of frames that have been demuxed during av_find_stream_info()
+ */
+ int codec_info_nb_frames;
+
+ /**
+ * Stream Identifier
+ * This is the MPEG-TS stream identifier +1
+ * 0 means unknown
+ */
+ int stream_identifier;
+
+ int64_t interleaver_chunk_size;
+ int64_t interleaver_chunk_duration;
+
+ /* av_read_frame() support */
+ enum AVStreamParseType need_parsing;
+ struct AVCodecParserContext *parser;
+
+ /**
+ * last packet in packet_buffer for this stream when muxing.
+ */
+ struct AVPacketList *last_in_packet_buffer;
+ AVProbeData probe_data;
+#define MAX_REORDER_DELAY 16
+ int64_t pts_buffer[MAX_REORDER_DELAY+1];
+
+ AVIndexEntry *index_entries; /**< Only used if the format does not
+ support seeking natively. */
+ int nb_index_entries;
+ unsigned int index_entries_allocated_size;
+
+ /**
+ * stream probing state
+ * -1 -> probing finished
+ * 0 -> no probing requested
+ * rest -> perform probing with request_probe being the minimum score to accept.
+ * NOT PART OF PUBLIC API
+ */
+ int request_probe;
+ /**
+ * Indicates that everything up to the next keyframe
+ * should be discarded.
+ */
+ int skip_to_keyframe;
+
+ /**
+ * Number of samples to skip at the start of the frame decoded from the next packet.
+ */
+ int skip_samples;
+
+ /**
+ * Number of internally decoded frames, used internally in libavformat, do not access
+ * its lifetime differs from info which is why it is not in that structure.
+ */
+ int nb_decoded_frames;
+
+ /**
+ * Timestamp offset added to timestamps before muxing
+ * NOT PART OF PUBLIC API
+ */
+ int64_t mux_ts_offset;
+
+ /**
+ * Internal data to check for wrapping of the time stamp
+ */
+ int64_t pts_wrap_reference;
+
+ /**
+ * Options for behavior, when a wrap is detected.
+ *
+ * Defined by AV_PTS_WRAP_ values.
+ *
+ * If correction is enabled, there are two possibilities:
+ * If the first time stamp is near the wrap point, the wrap offset
+ * will be subtracted, which will create negative time stamps.
+ * Otherwise the offset will be added.
+ */
+ int pts_wrap_behavior;
+
+} AVStream;
+
+#define AV_PROGRAM_RUNNING 1
+
+/**
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVProgram) must not be used outside libav*.
+ */
+typedef struct AVProgram {
+ int id;
+ int flags;
+ enum AVDiscard discard; ///< selects which program to discard and which to feed to the caller
+ unsigned int *stream_index;
+ unsigned int nb_stream_indexes;
+ AVDictionary *metadata;
+
+ int program_num;
+ int pmt_pid;
+ int pcr_pid;
+
+ /*****************************************************************
+ * All fields below this line are not part of the public API. They
+ * may not be used outside of libavformat and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+ int64_t start_time;
+ int64_t end_time;
+
+ int64_t pts_wrap_reference; ///< reference dts for wrap detection
+ int pts_wrap_behavior; ///< behavior on wrap detection
+} AVProgram;
+
+#define AVFMTCTX_NOHEADER 0x0001 /**< signal that no header is present
+ (streams are added dynamically) */
+
+typedef struct AVChapter {
+ int id; ///< unique ID to identify the chapter
+ AVRational time_base; ///< time base in which the start/end timestamps are specified
+ int64_t start, end; ///< chapter start/end time in time_base units
+ AVDictionary *metadata;
+} AVChapter;
+
+
+/**
+ * The duration of a video can be estimated through various ways, and this enum can be used
+ * to know how the duration was estimated.
+ */
+enum AVDurationEstimationMethod {
+ AVFMT_DURATION_FROM_PTS, ///< Duration accurately estimated from PTSes
+ AVFMT_DURATION_FROM_STREAM, ///< Duration estimated from a stream with a known duration
+ AVFMT_DURATION_FROM_BITRATE ///< Duration estimated from bitrate (less accurate)
+};
+
+/**
+ * Format I/O context.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVFormatContext) must not be used outside libav*, use
+ * avformat_alloc_context() to create an AVFormatContext.
+ */
+typedef struct AVFormatContext {
+ /**
+ * A class for logging and AVOptions. Set by avformat_alloc_context().
+ * Exports (de)muxer private options if they exist.
+ */
+ const AVClass *av_class;
+
+ /**
+ * Can only be iformat or oformat, not both at the same time.
+ *
+ * decoding: set by avformat_open_input().
+ * encoding: set by the user.
+ */
+ struct AVInputFormat *iformat;
+ struct AVOutputFormat *oformat;
+
+ /**
+ * Format private data. This is an AVOptions-enabled struct
+ * if and only if iformat/oformat.priv_class is not NULL.
+ */
+ void *priv_data;
+
+ /**
+ * I/O context.
+ *
+ * decoding: either set by the user before avformat_open_input() (then
+ * the user must close it manually) or set by avformat_open_input().
+ * encoding: set by the user.
+ *
+ * Do NOT set this field if AVFMT_NOFILE flag is set in
+ * iformat/oformat.flags. In such a case, the (de)muxer will handle
+ * I/O in some other way and this field will be NULL.
+ */
+ AVIOContext *pb;
+
+ /* stream info */
+ int ctx_flags; /**< Format-specific flags, see AVFMTCTX_xx */
+
+ /**
+ * A list of all streams in the file. New streams are created with
+ * avformat_new_stream().
+ *
+ * decoding: streams are created by libavformat in avformat_open_input().
+ * If AVFMTCTX_NOHEADER is set in ctx_flags, then new streams may also
+ * appear in av_read_frame().
+ * encoding: streams are created by the user before avformat_write_header().
+ */
+ unsigned int nb_streams;
+ AVStream **streams;
+
+ char filename[1024]; /**< input or output filename */
+
+ /**
+ * Decoding: position of the first frame of the component, in
+ * AV_TIME_BASE fractional seconds. NEVER set this value directly:
+ * It is deduced from the AVStream values.
+ */
+ int64_t start_time;
+
+ /**
+ * Decoding: duration of the stream, in AV_TIME_BASE fractional
+ * seconds. Only set this value if you know none of the individual stream
+ * durations and also do not set any of them. This is deduced from the
+ * AVStream values if not set.
+ */
+ int64_t duration;
+
+ /**
+ * Decoding: total stream bitrate in bit/s, 0 if not
+ * available. Never set it directly if the file_size and the
+ * duration are known as FFmpeg can compute it automatically.
+ */
+ int bit_rate;
+
+ unsigned int packet_size;
+ int max_delay;
+
+ int flags;
+#define AVFMT_FLAG_GENPTS 0x0001 ///< Generate missing pts even if it requires parsing future frames.
+#define AVFMT_FLAG_IGNIDX 0x0002 ///< Ignore index.
+#define AVFMT_FLAG_NONBLOCK 0x0004 ///< Do not block when reading packets from input.
+#define AVFMT_FLAG_IGNDTS 0x0008 ///< Ignore DTS on frames that contain both DTS & PTS
+#define AVFMT_FLAG_NOFILLIN 0x0010 ///< Do not infer any values from other values, just return what is stored in the container
+#define AVFMT_FLAG_NOPARSE 0x0020 ///< Do not use AVParsers, you also must set AVFMT_FLAG_NOFILLIN as the fillin code works on frames and no parsing -> no frames. Also seeking to frames can not work if parsing to find frame boundaries has been disabled
+#define AVFMT_FLAG_NOBUFFER 0x0040 ///< Do not buffer frames when possible
+#define AVFMT_FLAG_CUSTOM_IO 0x0080 ///< The caller has supplied a custom AVIOContext, don't avio_close() it.
+#define AVFMT_FLAG_DISCARD_CORRUPT 0x0100 ///< Discard frames marked corrupted
+#define AVFMT_FLAG_MP4A_LATM 0x8000 ///< Enable RTP MP4A-LATM payload
+#define AVFMT_FLAG_SORT_DTS 0x10000 ///< try to interleave outputted packets by dts (using this flag can slow demuxing down)
+#define AVFMT_FLAG_PRIV_OPT 0x20000 ///< Enable use of private options by delaying codec open (this could be made default once all code is converted)
+#define AVFMT_FLAG_KEEP_SIDE_DATA 0x40000 ///< Don't merge side data but keep it separate.
+
+ /**
+ * decoding: size of data to probe; encoding: unused.
+ */
+ unsigned int probesize;
+
+ /**
+ * decoding: maximum time (in AV_TIME_BASE units) during which the input should
+ * be analyzed in avformat_find_stream_info().
+ */
+ int max_analyze_duration;
+
+ const uint8_t *key;
+ int keylen;
+
+ unsigned int nb_programs;
+ AVProgram **programs;
+
+ /**
+ * Forced video codec_id.
+ * Demuxing: Set by user.
+ */
+ enum AVCodecID video_codec_id;
+
+ /**
+ * Forced audio codec_id.
+ * Demuxing: Set by user.
+ */
+ enum AVCodecID audio_codec_id;
+
+ /**
+ * Forced subtitle codec_id.
+ * Demuxing: Set by user.
+ */
+ enum AVCodecID subtitle_codec_id;
+
+ /**
+ * Maximum amount of memory in bytes to use for the index of each stream.
+ * If the index exceeds this size, entries will be discarded as
+ * needed to maintain a smaller size. This can lead to slower or less
+ * accurate seeking (depends on demuxer).
+ * Demuxers for which a full in-memory index is mandatory will ignore
+ * this.
+ * muxing : unused
+ * demuxing: set by user
+ */
+ unsigned int max_index_size;
+
+ /**
+ * Maximum amount of memory in bytes to use for buffering frames
+ * obtained from realtime capture devices.
+ */
+ unsigned int max_picture_buffer;
+
+ unsigned int nb_chapters;
+ AVChapter **chapters;
+
+ AVDictionary *metadata;
+
+ /**
+ * Start time of the stream in real world time, in microseconds
+ * since the unix epoch (00:00 1st January 1970). That is, pts=0
+ * in the stream was captured at this real world time.
+ * - encoding: Set by user.
+ * - decoding: Unused.
+ */
+ int64_t start_time_realtime;
+
+ /**
+ * decoding: number of frames used to probe fps
+ */
+ int fps_probe_size;
+
+ /**
+ * Error recognition; higher values will detect more errors but may
+ * misdetect some more or less valid parts as errors.
+ * - encoding: unused
+ * - decoding: Set by user.
+ */
+ int error_recognition;
+
+ /**
+ * Custom interrupt callbacks for the I/O layer.
+ *
+ * decoding: set by the user before avformat_open_input().
+ * encoding: set by the user before avformat_write_header()
+ * (mainly useful for AVFMT_NOFILE formats). The callback
+ * should also be passed to avio_open2() if it's used to
+ * open the file.
+ */
+ AVIOInterruptCB interrupt_callback;
+
+ /**
+ * Flags to enable debugging.
+ */
+ int debug;
+#define FF_FDEBUG_TS 0x0001
+
+ /**
+ * Transport stream id.
+ * This will be moved into demuxer private options. Thus no API/ABI compatibility
+ */
+ int ts_id;
+
+ /**
+ * Audio preload in microseconds.
+ * Note, not all formats support this and unpredictable things may happen if it is used when not supported.
+ * - encoding: Set by user via AVOptions (NO direct access)
+ * - decoding: unused
+ */
+ int audio_preload;
+
+ /**
+ * Max chunk time in microseconds.
+ * Note, not all formats support this and unpredictable things may happen if it is used when not supported.
+ * - encoding: Set by user via AVOptions (NO direct access)
+ * - decoding: unused
+ */
+ int max_chunk_duration;
+
+ /**
+ * Max chunk size in bytes
+ * Note, not all formats support this and unpredictable things may happen if it is used when not supported.
+ * - encoding: Set by user via AVOptions (NO direct access)
+ * - decoding: unused
+ */
+ int max_chunk_size;
+
+ /**
+ * forces the use of wallclock timestamps as pts/dts of packets
+ * This has undefined results in the presence of B frames.
+ * - encoding: unused
+ * - decoding: Set by user via AVOptions (NO direct access)
+ */
+ int use_wallclock_as_timestamps;
+
+ /**
+ * Avoids negative timestamps during muxing
+ * 0 -> allow negative timestamps
+ * 1 -> avoid negative timestamps
+ * -1 -> choose automatically (default)
+ * Note, this is only works when interleave_packet_per_dts is in use
+ * - encoding: Set by user via AVOptions (NO direct access)
+ * - decoding: unused
+ */
+ int avoid_negative_ts;
+
+ /**
+ * avio flags, used to force AVIO_FLAG_DIRECT.
+ * - encoding: unused
+ * - decoding: Set by user via AVOptions (NO direct access)
+ */
+ int avio_flags;
+
+ /**
+ * The duration field can be estimated through various ways, and this field can be used
+ * to know how the duration was estimated.
+ * - encoding: unused
+ * - decoding: Read by user via AVOptions (NO direct access)
+ */
+ enum AVDurationEstimationMethod duration_estimation_method;
+
+ /**
+ * Skip initial bytes when opening stream
+ * - encoding: unused
+ * - decoding: Set by user via AVOptions (NO direct access)
+ */
+ unsigned int skip_initial_bytes;
+
+ /**
+ * Correct single timestamp overflows
+ * - encoding: unused
+ * - decoding: Set by user via AVOPtions (NO direct access)
+ */
+ unsigned int correct_ts_overflow;
+
+ /**
+ * Force seeking to any (also non key) frames.
+ * - encoding: unused
+ * - decoding: Set by user via AVOPtions (NO direct access)
+ */
+ int seek2any;
+
+ /*****************************************************************
+ * All fields below this line are not part of the public API. They
+ * may not be used outside of libavformat and can be changed and
+ * removed at will.
+ * New public fields should be added right above.
+ *****************************************************************
+ */
+
+ /**
+ * This buffer is only needed when packets were already buffered but
+ * not decoded, for example to get the codec parameters in MPEG
+ * streams.
+ */
+ struct AVPacketList *packet_buffer;
+ struct AVPacketList *packet_buffer_end;
+
+ /* av_seek_frame() support */
+ int64_t data_offset; /**< offset of the first packet */
+
+ /**
+ * Raw packets from the demuxer, prior to parsing and decoding.
+ * This buffer is used for buffering packets until the codec can
+ * be identified, as parsing cannot be done without knowing the
+ * codec.
+ */
+ struct AVPacketList *raw_packet_buffer;
+ struct AVPacketList *raw_packet_buffer_end;
+ /**
+ * Packets split by the parser get queued here.
+ */
+ struct AVPacketList *parse_queue;
+ struct AVPacketList *parse_queue_end;
+ /**
+ * Remaining size available for raw_packet_buffer, in bytes.
+ */
+#define RAW_PACKET_BUFFER_SIZE 2500000
+ int raw_packet_buffer_remaining_size;
+} AVFormatContext;
+
+/**
+ * Returns the method used to set ctx->duration.
+ *
+ * @return AVFMT_DURATION_FROM_PTS, AVFMT_DURATION_FROM_STREAM, or AVFMT_DURATION_FROM_BITRATE.
+ */
+enum AVDurationEstimationMethod av_fmt_ctx_get_duration_estimation_method(const AVFormatContext* ctx);
+
+typedef struct AVPacketList {
+ AVPacket pkt;
+ struct AVPacketList *next;
+} AVPacketList;
+
+
+/**
+ * @defgroup lavf_core Core functions
+ * @ingroup libavf
+ *
+ * Functions for querying libavformat capabilities, allocating core structures,
+ * etc.
+ * @{
+ */
+
+/**
+ * Return the LIBAVFORMAT_VERSION_INT constant.
+ */
+unsigned avformat_version(void);
+
+/**
+ * Return the libavformat build-time configuration.
+ */
+const char *avformat_configuration(void);
+
+/**
+ * Return the libavformat license.
+ */
+const char *avformat_license(void);
+
+/**
+ * Initialize libavformat and register all the muxers, demuxers and
+ * protocols. If you do not call this function, then you can select
+ * exactly which formats you want to support.
+ *
+ * @see av_register_input_format()
+ * @see av_register_output_format()
+ */
+void av_register_all(void);
+
+void av_register_input_format(AVInputFormat *format);
+void av_register_output_format(AVOutputFormat *format);
+
+/**
+ * Do global initialization of network components. This is optional,
+ * but recommended, since it avoids the overhead of implicitly
+ * doing the setup for each session.
+ *
+ * Calling this function will become mandatory if using network
+ * protocols at some major version bump.
+ */
+int avformat_network_init(void);
+
+/**
+ * Undo the initialization done by avformat_network_init.
+ */
+int avformat_network_deinit(void);
+
+/**
+ * If f is NULL, returns the first registered input format,
+ * if f is non-NULL, returns the next registered input format after f
+ * or NULL if f is the last one.
+ */
+AVInputFormat *av_iformat_next(AVInputFormat *f);
+
+/**
+ * If f is NULL, returns the first registered output format,
+ * if f is non-NULL, returns the next registered output format after f
+ * or NULL if f is the last one.
+ */
+AVOutputFormat *av_oformat_next(AVOutputFormat *f);
+
+/**
+ * Allocate an AVFormatContext.
+ * avformat_free_context() can be used to free the context and everything
+ * allocated by the framework within it.
+ */
+AVFormatContext *avformat_alloc_context(void);
+
+/**
+ * Free an AVFormatContext and all its streams.
+ * @param s context to free
+ */
+void avformat_free_context(AVFormatContext *s);
+
+/**
+ * Get the AVClass for AVFormatContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *avformat_get_class(void);
+
+/**
+ * Add a new stream to a media file.
+ *
+ * When demuxing, it is called by the demuxer in read_header(). If the
+ * flag AVFMTCTX_NOHEADER is set in s.ctx_flags, then it may also
+ * be called in read_packet().
+ *
+ * When muxing, should be called by the user before avformat_write_header().
+ *
+ * @param c If non-NULL, the AVCodecContext corresponding to the new stream
+ * will be initialized to use this codec. This is needed for e.g. codec-specific
+ * defaults to be set, so codec should be provided if it is known.
+ *
+ * @return newly created stream or NULL on error.
+ */
+AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c);
+
+AVProgram *av_new_program(AVFormatContext *s, int id);
+
+/**
+ * @}
+ */
+
+
+#if FF_API_PKT_DUMP
+attribute_deprecated void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
+attribute_deprecated void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt,
+ int dump_payload);
+#endif
+
+#if FF_API_ALLOC_OUTPUT_CONTEXT
+/**
+ * @deprecated deprecated in favor of avformat_alloc_output_context2()
+ */
+attribute_deprecated
+AVFormatContext *avformat_alloc_output_context(const char *format,
+ AVOutputFormat *oformat,
+ const char *filename);
+#endif
+
+/**
+ * Allocate an AVFormatContext for an output format.
+ * avformat_free_context() can be used to free the context and
+ * everything allocated by the framework within it.
+ *
+ * @param *ctx is set to the created format context, or to NULL in
+ * case of failure
+ * @param oformat format to use for allocating the context, if NULL
+ * format_name and filename are used instead
+ * @param format_name the name of output format to use for allocating the
+ * context, if NULL filename is used instead
+ * @param filename the name of the filename to use for allocating the
+ * context, may be NULL
+ * @return >= 0 in case of success, a negative AVERROR code in case of
+ * failure
+ */
+int avformat_alloc_output_context2(AVFormatContext **ctx, AVOutputFormat *oformat,
+ const char *format_name, const char *filename);
+
+/**
+ * @addtogroup lavf_decoding
+ * @{
+ */
+
+/**
+ * Find AVInputFormat based on the short name of the input format.
+ */
+AVInputFormat *av_find_input_format(const char *short_name);
+
+/**
+ * Guess the file format.
+ *
+ * @param is_opened Whether the file is already opened; determines whether
+ * demuxers with or without AVFMT_NOFILE are probed.
+ */
+AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
+
+/**
+ * Guess the file format.
+ *
+ * @param is_opened Whether the file is already opened; determines whether
+ * demuxers with or without AVFMT_NOFILE are probed.
+ * @param score_max A probe score larger that this is required to accept a
+ * detection, the variable is set to the actual detection
+ * score afterwards.
+ * If the score is <= AVPROBE_SCORE_MAX / 4 it is recommended
+ * to retry with a larger probe buffer.
+ */
+AVInputFormat *av_probe_input_format2(AVProbeData *pd, int is_opened, int *score_max);
+
+/**
+ * Guess the file format.
+ *
+ * @param is_opened Whether the file is already opened; determines whether
+ * demuxers with or without AVFMT_NOFILE are probed.
+ * @param score_ret The score of the best detection.
+ */
+AVInputFormat *av_probe_input_format3(AVProbeData *pd, int is_opened, int *score_ret);
+
+/**
+ * Probe a bytestream to determine the input format. Each time a probe returns
+ * with a score that is too low, the probe buffer size is increased and another
+ * attempt is made. When the maximum probe size is reached, the input format
+ * with the highest score is returned.
+ *
+ * @param pb the bytestream to probe
+ * @param fmt the input format is put here
+ * @param filename the filename of the stream
+ * @param logctx the log context
+ * @param offset the offset within the bytestream to probe from
+ * @param max_probe_size the maximum probe buffer size (zero for default)
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_probe_input_buffer(AVIOContext *pb, AVInputFormat **fmt,
+ const char *filename, void *logctx,
+ unsigned int offset, unsigned int max_probe_size);
+
+/**
+ * Open an input stream and read the header. The codecs are not opened.
+ * The stream must be closed with av_close_input_file().
+ *
+ * @param ps Pointer to user-supplied AVFormatContext (allocated by avformat_alloc_context).
+ * May be a pointer to NULL, in which case an AVFormatContext is allocated by this
+ * function and written into ps.
+ * Note that a user-supplied AVFormatContext will be freed on failure.
+ * @param filename Name of the stream to open.
+ * @param fmt If non-NULL, this parameter forces a specific input format.
+ * Otherwise the format is autodetected.
+ * @param options A dictionary filled with AVFormatContext and demuxer-private options.
+ * On return this parameter will be destroyed and replaced with a dict containing
+ * options that were not found. May be NULL.
+ *
+ * @return 0 on success, a negative AVERROR on failure.
+ *
+ * @note If you want to use custom IO, preallocate the format context and set its pb field.
+ */
+int avformat_open_input(AVFormatContext **ps, const char *filename, AVInputFormat *fmt, AVDictionary **options);
+
+attribute_deprecated
+int av_demuxer_open(AVFormatContext *ic);
+
+#if FF_API_FORMAT_PARAMETERS
+/**
+ * Read packets of a media file to get stream information. This
+ * is useful for file formats with no headers such as MPEG. This
+ * function also computes the real framerate in case of MPEG-2 repeat
+ * frame mode.
+ * The logical file position is not changed by this function;
+ * examined packets may be buffered for later processing.
+ *
+ * @param ic media file handle
+ * @return >=0 if OK, AVERROR_xxx on error
+ * @todo Let the user decide somehow what information is needed so that
+ * we do not waste time getting stuff the user does not need.
+ *
+ * @deprecated use avformat_find_stream_info.
+ */
+attribute_deprecated
+int av_find_stream_info(AVFormatContext *ic);
+#endif
+
+/**
+ * Read packets of a media file to get stream information. This
+ * is useful for file formats with no headers such as MPEG. This
+ * function also computes the real framerate in case of MPEG-2 repeat
+ * frame mode.
+ * The logical file position is not changed by this function;
+ * examined packets may be buffered for later processing.
+ *
+ * @param ic media file handle
+ * @param options If non-NULL, an ic.nb_streams long array of pointers to
+ * dictionaries, where i-th member contains options for
+ * codec corresponding to i-th stream.
+ * On return each dictionary will be filled with options that were not found.
+ * @return >=0 if OK, AVERROR_xxx on error
+ *
+ * @note this function isn't guaranteed to open all the codecs, so
+ * options being non-empty at return is a perfectly normal behavior.
+ *
+ * @todo Let the user decide somehow what information is needed so that
+ * we do not waste time getting stuff the user does not need.
+ */
+int avformat_find_stream_info(AVFormatContext *ic, AVDictionary **options);
+
+/**
+ * Find the programs which belong to a given stream.
+ *
+ * @param ic media file handle
+ * @param last the last found program, the search will start after this
+ * program, or from the beginning if it is NULL
+ * @param s stream index
+ * @return the next program which belongs to s, NULL if no program is found or
+ * the last program is not among the programs of ic.
+ */
+AVProgram *av_find_program_from_stream(AVFormatContext *ic, AVProgram *last, int s);
+
+/**
+ * Find the "best" stream in the file.
+ * The best stream is determined according to various heuristics as the most
+ * likely to be what the user expects.
+ * If the decoder parameter is non-NULL, av_find_best_stream will find the
+ * default decoder for the stream's codec; streams for which no decoder can
+ * be found are ignored.
+ *
+ * @param ic media file handle
+ * @param type stream type: video, audio, subtitles, etc.
+ * @param wanted_stream_nb user-requested stream number,
+ * or -1 for automatic selection
+ * @param related_stream try to find a stream related (eg. in the same
+ * program) to this one, or -1 if none
+ * @param decoder_ret if non-NULL, returns the decoder for the
+ * selected stream
+ * @param flags flags; none are currently defined
+ * @return the non-negative stream number in case of success,
+ * AVERROR_STREAM_NOT_FOUND if no stream with the requested type
+ * could be found,
+ * AVERROR_DECODER_NOT_FOUND if streams were found but no decoder
+ * @note If av_find_best_stream returns successfully and decoder_ret is not
+ * NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec.
+ */
+int av_find_best_stream(AVFormatContext *ic,
+ enum AVMediaType type,
+ int wanted_stream_nb,
+ int related_stream,
+ AVCodec **decoder_ret,
+ int flags);
+
+#if FF_API_READ_PACKET
+/**
+ * @deprecated use AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE to read raw
+ * unprocessed packets
+ *
+ * Read a transport packet from a media file.
+ *
+ * This function is obsolete and should never be used.
+ * Use av_read_frame() instead.
+ *
+ * @param s media file handle
+ * @param pkt is filled
+ * @return 0 if OK, AVERROR_xxx on error
+ */
+attribute_deprecated
+int av_read_packet(AVFormatContext *s, AVPacket *pkt);
+#endif
+
+/**
+ * Return the next frame of a stream.
+ * This function returns what is stored in the file, and does not validate
+ * that what is there are valid frames for the decoder. It will split what is
+ * stored in the file into frames and return one for each call. It will not
+ * omit invalid data between valid frames so as to give the decoder the maximum
+ * information possible for decoding.
+ *
+ * If pkt->destruct is NULL, then the packet is valid until the next
+ * av_read_frame() or until av_close_input_file(). Otherwise the packet is valid
+ * indefinitely. In both cases the packet must be freed with
+ * av_free_packet when it is no longer needed. For video, the packet contains
+ * exactly one frame. For audio, it contains an integer number of frames if each
+ * frame has a known fixed size (e.g. PCM or ADPCM data). If the audio frames
+ * have a variable size (e.g. MPEG audio), then it contains one frame.
+ *
+ * pkt->pts, pkt->dts and pkt->duration are always set to correct
+ * values in AVStream.time_base units (and guessed if the format cannot
+ * provide them). pkt->pts can be AV_NOPTS_VALUE if the video format
+ * has B-frames, so it is better to rely on pkt->dts if you do not
+ * decompress the payload.
+ *
+ * @return 0 if OK, < 0 on error or end of file
+ */
+int av_read_frame(AVFormatContext *s, AVPacket *pkt);
+
+/**
+ * Seek to the keyframe at timestamp.
+ * 'timestamp' in 'stream_index'.
+ * @param stream_index If stream_index is (-1), a default
+ * stream is selected, and timestamp is automatically converted
+ * from AV_TIME_BASE units to the stream specific time_base.
+ * @param timestamp Timestamp in AVStream.time_base units
+ * or, if no stream is specified, in AV_TIME_BASE units.
+ * @param flags flags which select direction and seeking mode
+ * @return >= 0 on success
+ */
+int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp,
+ int flags);
+
+/**
+ * Seek to timestamp ts.
+ * Seeking will be done so that the point from which all active streams
+ * can be presented successfully will be closest to ts and within min/max_ts.
+ * Active streams are all streams that have AVStream.discard < AVDISCARD_ALL.
+ *
+ * If flags contain AVSEEK_FLAG_BYTE, then all timestamps are in bytes and
+ * are the file position (this may not be supported by all demuxers).
+ * If flags contain AVSEEK_FLAG_FRAME, then all timestamps are in frames
+ * in the stream with stream_index (this may not be supported by all demuxers).
+ * Otherwise all timestamps are in units of the stream selected by stream_index
+ * or if stream_index is -1, in AV_TIME_BASE units.
+ * If flags contain AVSEEK_FLAG_ANY, then non-keyframes are treated as
+ * keyframes (this may not be supported by all demuxers).
+ *
+ * @param stream_index index of the stream which is used as time base reference
+ * @param min_ts smallest acceptable timestamp
+ * @param ts target timestamp
+ * @param max_ts largest acceptable timestamp
+ * @param flags flags
+ * @return >=0 on success, error code otherwise
+ *
+ * @note This is part of the new seek API which is still under construction.
+ * Thus do not use this yet. It may change at any time, do not expect
+ * ABI compatibility yet!
+ */
+int avformat_seek_file(AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
+
+/**
+ * Start playing a network-based stream (e.g. RTSP stream) at the
+ * current position.
+ */
+int av_read_play(AVFormatContext *s);
+
+/**
+ * Pause a network-based stream (e.g. RTSP stream).
+ *
+ * Use av_read_play() to resume it.
+ */
+int av_read_pause(AVFormatContext *s);
+
+#if FF_API_CLOSE_INPUT_FILE
+/**
+ * @deprecated use avformat_close_input()
+ * Close a media file (but not its codecs).
+ *
+ * @param s media file handle
+ */
+attribute_deprecated
+void av_close_input_file(AVFormatContext *s);
+#endif
+
+/**
+ * Close an opened input AVFormatContext. Free it and all its contents
+ * and set *s to NULL.
+ */
+void avformat_close_input(AVFormatContext **s);
+/**
+ * @}
+ */
+
+#if FF_API_NEW_STREAM
+/**
+ * Add a new stream to a media file.
+ *
+ * Can only be called in the read_header() function. If the flag
+ * AVFMTCTX_NOHEADER is in the format context, then new streams
+ * can be added in read_packet too.
+ *
+ * @param s media file handle
+ * @param id file-format-dependent stream ID
+ */
+attribute_deprecated
+AVStream *av_new_stream(AVFormatContext *s, int id);
+#endif
+
+#if FF_API_SET_PTS_INFO
+/**
+ * @deprecated this function is not supposed to be called outside of lavf
+ */
+attribute_deprecated
+void av_set_pts_info(AVStream *s, int pts_wrap_bits,
+ unsigned int pts_num, unsigned int pts_den);
+#endif
+
+#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
+#define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
+#define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non-keyframes
+#define AVSEEK_FLAG_FRAME 8 ///< seeking based on frame number
+
+/**
+ * @addtogroup lavf_encoding
+ * @{
+ */
+/**
+ * Allocate the stream private data and write the stream header to
+ * an output media file.
+ *
+ * @param s Media file handle, must be allocated with avformat_alloc_context().
+ * Its oformat field must be set to the desired output format;
+ * Its pb field must be set to an already openened AVIOContext.
+ * @param options An AVDictionary filled with AVFormatContext and muxer-private options.
+ * On return this parameter will be destroyed and replaced with a dict containing
+ * options that were not found. May be NULL.
+ *
+ * @return 0 on success, negative AVERROR on failure.
+ *
+ * @see av_opt_find, av_dict_set, avio_open, av_oformat_next.
+ */
+int avformat_write_header(AVFormatContext *s, AVDictionary **options);
+
+/**
+ * Write a packet to an output media file.
+ *
+ * The packet shall contain one audio or video frame.
+ * The packet must be correctly interleaved according to the container
+ * specification, if not then av_interleaved_write_frame must be used.
+ *
+ * @param s media file handle
+ * @param pkt The packet, which contains the stream_index, buf/buf_size,
+ * dts/pts, ...
+ * This can be NULL (at any time, not just at the end), in
+ * order to immediately flush data buffered within the muxer,
+ * for muxers that buffer up data internally before writing it
+ * to the output.
+ * @return < 0 on error, = 0 if OK, 1 if flushed and there is no more data to flush
+ */
+int av_write_frame(AVFormatContext *s, AVPacket *pkt);
+
+/**
+ * Write a packet to an output media file ensuring correct interleaving.
+ *
+ * The packet must contain one audio or video frame.
+ * If the packets are already correctly interleaved, the application should
+ * call av_write_frame() instead as it is slightly faster. It is also important
+ * to keep in mind that completely non-interleaved input will need huge amounts
+ * of memory to interleave with this, so it is preferable to interleave at the
+ * demuxer level.
+ *
+ * @param s media file handle
+ * @param pkt The packet containing the data to be written. Libavformat takes
+ * ownership of the data and will free it when it sees fit using the packet's
+ * @ref AVPacket.destruct "destruct" field. The caller must not access the data
+ * after this function returns, as it may already be freed.
+ * This can be NULL (at any time, not just at the end), to flush the
+ * interleaving queues.
+ * Packet's @ref AVPacket.stream_index "stream_index" field must be set to the
+ * index of the corresponding stream in @ref AVFormatContext.streams
+ * "s.streams".
+ * It is very strongly recommended that timing information (@ref AVPacket.pts
+ * "pts", @ref AVPacket.dts "dts" @ref AVPacket.duration "duration") is set to
+ * correct values.
+ *
+ * @return 0 on success, a negative AVERROR on error.
+ */
+int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
+
+#if FF_API_INTERLEAVE_PACKET
+/**
+ * @deprecated this function was never meant to be called by the user
+ * programs.
+ */
+attribute_deprecated
+int av_interleave_packet_per_dts(AVFormatContext *s, AVPacket *out,
+ AVPacket *pkt, int flush);
+#endif
+
+/**
+ * Write the stream trailer to an output media file and free the
+ * file private data.
+ *
+ * May only be called after a successful call to avformat_write_header.
+ *
+ * @param s media file handle
+ * @return 0 if OK, AVERROR_xxx on error
+ */
+int av_write_trailer(AVFormatContext *s);
+
+/**
+ * Return the output format in the list of registered output formats
+ * which best matches the provided parameters, or return NULL if
+ * there is no match.
+ *
+ * @param short_name if non-NULL checks if short_name matches with the
+ * names of the registered formats
+ * @param filename if non-NULL checks if filename terminates with the
+ * extensions of the registered formats
+ * @param mime_type if non-NULL checks if mime_type matches with the
+ * MIME type of the registered formats
+ */
+AVOutputFormat *av_guess_format(const char *short_name,
+ const char *filename,
+ const char *mime_type);
+
+/**
+ * Guess the codec ID based upon muxer and filename.
+ */
+enum AVCodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
+ const char *filename, const char *mime_type,
+ enum AVMediaType type);
+
+/**
+ * Get timing information for the data currently output.
+ * The exact meaning of "currently output" depends on the format.
+ * It is mostly relevant for devices that have an internal buffer and/or
+ * work in real time.
+ * @param s media file handle
+ * @param stream stream in the media file
+ * @param[out] dts DTS of the last packet output for the stream, in stream
+ * time_base units
+ * @param[out] wall absolute time when that packet whas output,
+ * in microsecond
+ * @return 0 if OK, AVERROR(ENOSYS) if the format does not support it
+ * Note: some formats or devices may not allow to measure dts and wall
+ * atomically.
+ */
+int av_get_output_timestamp(struct AVFormatContext *s, int stream,
+ int64_t *dts, int64_t *wall);
+
+
+/**
+ * @}
+ */
+
+
+/**
+ * @defgroup lavf_misc Utility functions
+ * @ingroup libavf
+ * @{
+ *
+ * Miscellaneous utility functions related to both muxing and demuxing
+ * (or neither).
+ */
+
+/**
+ * Send a nice hexadecimal dump of a buffer to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
+ * @param buf buffer
+ * @param size buffer size
+ *
+ * @see av_hex_dump_log, av_pkt_dump2, av_pkt_dump_log2
+ */
+void av_hex_dump(FILE *f, const uint8_t *buf, int size);
+
+/**
+ * Send a nice hexadecimal dump of a buffer to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param buf buffer
+ * @param size buffer size
+ *
+ * @see av_hex_dump, av_pkt_dump2, av_pkt_dump_log2
+ */
+void av_hex_dump_log(void *avcl, int level, const uint8_t *buf, int size);
+
+/**
+ * Send a nice dump of a packet to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
+ * @param pkt packet to dump
+ * @param dump_payload True if the payload must be displayed, too.
+ * @param st AVStream that the packet belongs to
+ */
+void av_pkt_dump2(FILE *f, AVPacket *pkt, int dump_payload, AVStream *st);
+
+
+/**
+ * Send a nice dump of a packet to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param pkt packet to dump
+ * @param dump_payload True if the payload must be displayed, too.
+ * @param st AVStream that the packet belongs to
+ */
+void av_pkt_dump_log2(void *avcl, int level, AVPacket *pkt, int dump_payload,
+ AVStream *st);
+
+/**
+ * Get the AVCodecID for the given codec tag tag.
+ * If no codec id is found returns AV_CODEC_ID_NONE.
+ *
+ * @param tags list of supported codec_id-codec_tag pairs, as stored
+ * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ */
+enum AVCodecID av_codec_get_id(const struct AVCodecTag * const *tags, unsigned int tag);
+
+/**
+ * Get the codec tag for the given codec id id.
+ * If no codec tag is found returns 0.
+ *
+ * @param tags list of supported codec_id-codec_tag pairs, as stored
+ * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ */
+unsigned int av_codec_get_tag(const struct AVCodecTag * const *tags, enum AVCodecID id);
+
+/**
+ * Get the codec tag for the given codec id.
+ *
+ * @param tags list of supported codec_id - codec_tag pairs, as stored
+ * in AVInputFormat.codec_tag and AVOutputFormat.codec_tag
+ * @param id codec id that should be searched for in the list
+ * @param tag A pointer to the found tag
+ * @return 0 if id was not found in tags, > 0 if it was found
+ */
+int av_codec_get_tag2(const struct AVCodecTag * const *tags, enum AVCodecID id,
+ unsigned int *tag);
+
+int av_find_default_stream_index(AVFormatContext *s);
+
+/**
+ * Get the index for a specific timestamp.
+ * @param flags if AVSEEK_FLAG_BACKWARD then the returned index will correspond
+ * to the timestamp which is <= the requested one, if backward
+ * is 0, then it will be >=
+ * if AVSEEK_FLAG_ANY seek to any frame, only keyframes otherwise
+ * @return < 0 if no such timestamp could be found
+ */
+int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
+
+/**
+ * Add an index entry into a sorted list. Update the entry if the list
+ * already contains it.
+ *
+ * @param timestamp timestamp in the time base of the given stream
+ */
+int av_add_index_entry(AVStream *st, int64_t pos, int64_t timestamp,
+ int size, int distance, int flags);
+
+
+/**
+ * Split a URL string into components.
+ *
+ * The pointers to buffers for storing individual components may be null,
+ * in order to ignore that component. Buffers for components not found are
+ * set to empty strings. If the port is not found, it is set to a negative
+ * value.
+ *
+ * @param proto the buffer for the protocol
+ * @param proto_size the size of the proto buffer
+ * @param authorization the buffer for the authorization
+ * @param authorization_size the size of the authorization buffer
+ * @param hostname the buffer for the host name
+ * @param hostname_size the size of the hostname buffer
+ * @param port_ptr a pointer to store the port number in
+ * @param path the buffer for the path
+ * @param path_size the size of the path buffer
+ * @param url the URL to split
+ */
+void av_url_split(char *proto, int proto_size,
+ char *authorization, int authorization_size,
+ char *hostname, int hostname_size,
+ int *port_ptr,
+ char *path, int path_size,
+ const char *url);
+
+
+void av_dump_format(AVFormatContext *ic,
+ int index,
+ const char *url,
+ int is_output);
+
+/**
+ * Return in 'buf' the path with '%d' replaced by a number.
+ *
+ * Also handles the '%0nd' format where 'n' is the total number
+ * of digits and '%%'.
+ *
+ * @param buf destination buffer
+ * @param buf_size destination buffer size
+ * @param path numbered sequence string
+ * @param number frame number
+ * @return 0 if OK, -1 on format error
+ */
+int av_get_frame_filename(char *buf, int buf_size,
+ const char *path, int number);
+
+/**
+ * Check whether filename actually is a numbered sequence generator.
+ *
+ * @param filename possible numbered sequence string
+ * @return 1 if a valid numbered sequence string, 0 otherwise
+ */
+int av_filename_number_test(const char *filename);
+
+/**
+ * Generate an SDP for an RTP session.
+ *
+ * Note, this overwrites the id values of AVStreams in the muxer contexts
+ * for getting unique dynamic payload types.
+ *
+ * @param ac array of AVFormatContexts describing the RTP streams. If the
+ * array is composed by only one context, such context can contain
+ * multiple AVStreams (one AVStream per RTP stream). Otherwise,
+ * all the contexts in the array (an AVCodecContext per RTP stream)
+ * must contain only one AVStream.
+ * @param n_files number of AVCodecContexts contained in ac
+ * @param buf buffer where the SDP will be stored (must be allocated by
+ * the caller)
+ * @param size the size of the buffer
+ * @return 0 if OK, AVERROR_xxx on error
+ */
+int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size);
+
+/**
+ * Return a positive value if the given filename has one of the given
+ * extensions, 0 otherwise.
+ *
+ * @param extensions a comma-separated list of filename extensions
+ */
+int av_match_ext(const char *filename, const char *extensions);
+
+/**
+ * Test if the given container can store a codec.
+ *
+ * @param std_compliance standards compliance level, one of FF_COMPLIANCE_*
+ *
+ * @return 1 if codec with ID codec_id can be stored in ofmt, 0 if it cannot.
+ * A negative number if this information is not available.
+ */
+int avformat_query_codec(AVOutputFormat *ofmt, enum AVCodecID codec_id, int std_compliance);
+
+/**
+ * @defgroup riff_fourcc RIFF FourCCs
+ * @{
+ * Get the tables mapping RIFF FourCCs to libavcodec AVCodecIDs. The tables are
+ * meant to be passed to av_codec_get_id()/av_codec_get_tag() as in the
+ * following code:
+ * @code
+ * uint32_t tag = MKTAG('H', '2', '6', '4');
+ * const struct AVCodecTag *table[] = { avformat_get_riff_video_tags(), 0 };
+ * enum AVCodecID id = av_codec_get_id(table, tag);
+ * @endcode
+ */
+/**
+ * @return the table mapping RIFF FourCCs for video to libavcodec AVCodecID.
+ */
+const struct AVCodecTag *avformat_get_riff_video_tags(void);
+/**
+ * @return the table mapping RIFF FourCCs for audio to AVCodecID.
+ */
+const struct AVCodecTag *avformat_get_riff_audio_tags(void);
+
+/**
+ * @}
+ */
+
+/**
+ * Guess the sample aspect ratio of a frame, based on both the stream and the
+ * frame aspect ratio.
+ *
+ * Since the frame aspect ratio is set by the codec but the stream aspect ratio
+ * is set by the demuxer, these two may not be equal. This function tries to
+ * return the value that you should use if you would like to display the frame.
+ *
+ * Basic logic is to use the stream aspect ratio if it is set to something sane
+ * otherwise use the frame aspect ratio. This way a container setting, which is
+ * usually easy to modify can override the coded value in the frames.
+ *
+ * @param format the format context which the stream is part of
+ * @param stream the stream which the frame is part of
+ * @param frame the frame with the aspect ratio to be determined
+ * @return the guessed (valid) sample_aspect_ratio, 0/1 if no idea
+ */
+AVRational av_guess_sample_aspect_ratio(AVFormatContext *format, AVStream *stream, AVFrame *frame);
+
+/**
+ * Check if the stream st contained in s is matched by the stream specifier
+ * spec.
+ *
+ * See the "stream specifiers" chapter in the documentation for the syntax
+ * of spec.
+ *
+ * @return >0 if st is matched by spec;
+ * 0 if st is not matched by spec;
+ * AVERROR code if spec is invalid
+ *
+ * @note A stream specifier can match several streams in the format.
+ */
+int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st,
+ const char *spec);
+
+void avformat_queue_attached_pictures(AVFormatContext *s);
+
+
+/**
+ * @}
+ */
+
+#endif /* AVFORMAT_AVFORMAT_H */
diff --git a/thirdparties/mac/include/libavformat/avio.h b/thirdparties/mac/include/libavformat/avio.h
new file mode 100644
index 0000000..17b341d
--- /dev/null
+++ b/thirdparties/mac/include/libavformat/avio.h
@@ -0,0 +1,475 @@
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef AVFORMAT_AVIO_H
+#define AVFORMAT_AVIO_H
+
+/**
+ * @file
+ * @ingroup lavf_io
+ * Buffered I/O operations
+ */
+
+#include <stdint.h>
+
+#include "libavutil/common.h"
+#include "libavutil/dict.h"
+#include "libavutil/log.h"
+
+#include "libavformat/version.h"
+
+
+#define AVIO_SEEKABLE_NORMAL 0x0001 /**< Seeking works like for a local file */
+
+/**
+ * Callback for checking whether to abort blocking functions.
+ * AVERROR_EXIT is returned in this case by the interrupted
+ * function. During blocking operations, callback is called with
+ * opaque as parameter. If the callback returns 1, the
+ * blocking operation will be aborted.
+ *
+ * No members can be added to this struct without a major bump, if
+ * new elements have been added after this struct in AVFormatContext
+ * or AVIOContext.
+ */
+typedef struct AVIOInterruptCB {
+ int (*callback)(void*);
+ void *opaque;
+} AVIOInterruptCB;
+
+/**
+ * Bytestream IO Context.
+ * New fields can be added to the end with minor version bumps.
+ * Removal, reordering and changes to existing fields require a major
+ * version bump.
+ * sizeof(AVIOContext) must not be used outside libav*.
+ *
+ * @note None of the function pointers in AVIOContext should be called
+ * directly, they should only be set by the client application
+ * when implementing custom I/O. Normally these are set to the
+ * function pointers specified in avio_alloc_context()
+ */
+typedef struct AVIOContext {
+ /**
+ * A class for private options.
+ *
+ * If this AVIOContext is created by avio_open2(), av_class is set and
+ * passes the options down to protocols.
+ *
+ * If this AVIOContext is manually allocated, then av_class may be set by
+ * the caller.
+ *
+ * warning -- this field can be NULL, be sure to not pass this AVIOContext
+ * to any av_opt_* functions in that case.
+ */
+ const AVClass *av_class;
+ unsigned char *buffer; /**< Start of the buffer. */
+ int buffer_size; /**< Maximum buffer size */
+ unsigned char *buf_ptr; /**< Current position in the buffer */
+ unsigned char *buf_end; /**< End of the data, may be less than
+ buffer+buffer_size if the read function returned
+ less data than requested, e.g. for streams where
+ no more data has been received yet. */
+ void *opaque; /**< A private pointer, passed to the read/write/seek/...
+ functions. */
+ int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
+ int64_t (*seek)(void *opaque, int64_t offset, int whence);
+ int64_t pos; /**< position in the file of the current buffer */
+ int must_flush; /**< true if the next seek should flush */
+ int eof_reached; /**< true if eof reached */
+ int write_flag; /**< true if open for writing */
+ int max_packet_size;
+ unsigned long checksum;
+ unsigned char *checksum_ptr;
+ unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size);
+ int error; /**< contains the error code or 0 if no error happened */
+ /**
+ * Pause or resume playback for network streaming protocols - e.g. MMS.
+ */
+ int (*read_pause)(void *opaque, int pause);
+ /**
+ * Seek to a given timestamp in stream with the specified stream_index.
+ * Needed for some network streaming protocols which don't support seeking
+ * to byte position.
+ */
+ int64_t (*read_seek)(void *opaque, int stream_index,
+ int64_t timestamp, int flags);
+ /**
+ * A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
+ */
+ int seekable;
+
+ /**
+ * max filesize, used to limit allocations
+ * This field is internal to libavformat and access from outside is not allowed.
+ */
+ int64_t maxsize;
+
+ /**
+ * avio_read and avio_write should if possible be satisfied directly
+ * instead of going through a buffer, and avio_seek will always
+ * call the underlying seek function directly.
+ */
+ int direct;
+
+ /**
+ * Bytes read statistic
+ * This field is internal to libavformat and access from outside is not allowed.
+ */
+ int64_t bytes_read;
+
+ /**
+ * seek statistic
+ * This field is internal to libavformat and access from outside is not allowed.
+ */
+ int seek_count;
+} AVIOContext;
+
+/* unbuffered I/O */
+
+/**
+ * Return AVIO_FLAG_* access flags corresponding to the access permissions
+ * of the resource in url, or a negative value corresponding to an
+ * AVERROR code in case of failure. The returned access flags are
+ * masked by the value in flags.
+ *
+ * @note This function is intrinsically unsafe, in the sense that the
+ * checked resource may change its existence or permission status from
+ * one call to another. Thus you should not trust the returned value,
+ * unless you are sure that no other processes are accessing the
+ * checked resource.
+ */
+int avio_check(const char *url, int flags);
+
+/**
+ * Allocate and initialize an AVIOContext for buffered I/O. It must be later
+ * freed with av_free().
+ *
+ * @param buffer Memory block for input/output operations via AVIOContext.
+ * The buffer must be allocated with av_malloc() and friends.
+ * @param buffer_size The buffer size is very important for performance.
+ * For protocols with fixed blocksize it should be set to this blocksize.
+ * For others a typical size is a cache page, e.g. 4kb.
+ * @param write_flag Set to 1 if the buffer should be writable, 0 otherwise.
+ * @param opaque An opaque pointer to user-specific data.
+ * @param read_packet A function for refilling the buffer, may be NULL.
+ * @param write_packet A function for writing the buffer contents, may be NULL.
+ * The function may not change the input buffers content.
+ * @param seek A function for seeking to specified byte position, may be NULL.
+ *
+ * @return Allocated AVIOContext or NULL on failure.
+ */
+AVIOContext *avio_alloc_context(
+ unsigned char *buffer,
+ int buffer_size,
+ int write_flag,
+ void *opaque,
+ int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
+ int64_t (*seek)(void *opaque, int64_t offset, int whence));
+
+void avio_w8(AVIOContext *s, int b);
+void avio_write(AVIOContext *s, const unsigned char *buf, int size);
+void avio_wl64(AVIOContext *s, uint64_t val);
+void avio_wb64(AVIOContext *s, uint64_t val);
+void avio_wl32(AVIOContext *s, unsigned int val);
+void avio_wb32(AVIOContext *s, unsigned int val);
+void avio_wl24(AVIOContext *s, unsigned int val);
+void avio_wb24(AVIOContext *s, unsigned int val);
+void avio_wl16(AVIOContext *s, unsigned int val);
+void avio_wb16(AVIOContext *s, unsigned int val);
+
+/**
+ * Write a NULL-terminated string.
+ * @return number of bytes written.
+ */
+int avio_put_str(AVIOContext *s, const char *str);
+
+/**
+ * Convert an UTF-8 string to UTF-16LE and write it.
+ * @return number of bytes written.
+ */
+int avio_put_str16le(AVIOContext *s, const char *str);
+
+/**
+ * Passing this as the "whence" parameter to a seek function causes it to
+ * return the filesize without seeking anywhere. Supporting this is optional.
+ * If it is not supported then the seek function will return <0.
+ */
+#define AVSEEK_SIZE 0x10000
+
+/**
+ * Oring this flag as into the "whence" parameter to a seek function causes it to
+ * seek by any means (like reopening and linear reading) or other normally unreasonble
+ * means that can be extreemly slow.
+ * This may be ignored by the seek code.
+ */
+#define AVSEEK_FORCE 0x20000
+
+/**
+ * fseek() equivalent for AVIOContext.
+ * @return new position or AVERROR.
+ */
+int64_t avio_seek(AVIOContext *s, int64_t offset, int whence);
+
+/**
+ * Skip given number of bytes forward
+ * @return new position or AVERROR.
+ */
+int64_t avio_skip(AVIOContext *s, int64_t offset);
+
+/**
+ * ftell() equivalent for AVIOContext.
+ * @return position or AVERROR.
+ */
+static av_always_inline int64_t avio_tell(AVIOContext *s)
+{
+ return avio_seek(s, 0, SEEK_CUR);
+}
+
+/**
+ * Get the filesize.
+ * @return filesize or AVERROR
+ */
+int64_t avio_size(AVIOContext *s);
+
+/**
+ * feof() equivalent for AVIOContext.
+ * @return non zero if and only if end of file
+ */
+int url_feof(AVIOContext *s);
+
+/** @warning currently size is limited */
+int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3);
+
+/**
+ * Force flushing of buffered data to the output s.
+ *
+ * Force the buffered data to be immediately written to the output,
+ * without to wait to fill the internal buffer.
+ */
+void avio_flush(AVIOContext *s);
+
+/**
+ * Read size bytes from AVIOContext into buf.
+ * @return number of bytes read or AVERROR
+ */
+int avio_read(AVIOContext *s, unsigned char *buf, int size);
+
+/**
+ * @name Functions for reading from AVIOContext
+ * @{
+ *
+ * @note return 0 if EOF, so you cannot use it if EOF handling is
+ * necessary
+ */
+int avio_r8 (AVIOContext *s);
+unsigned int avio_rl16(AVIOContext *s);
+unsigned int avio_rl24(AVIOContext *s);
+unsigned int avio_rl32(AVIOContext *s);
+uint64_t avio_rl64(AVIOContext *s);
+unsigned int avio_rb16(AVIOContext *s);
+unsigned int avio_rb24(AVIOContext *s);
+unsigned int avio_rb32(AVIOContext *s);
+uint64_t avio_rb64(AVIOContext *s);
+/**
+ * @}
+ */
+
+/**
+ * Read a string from pb into buf. The reading will terminate when either
+ * a NULL character was encountered, maxlen bytes have been read, or nothing
+ * more can be read from pb. The result is guaranteed to be NULL-terminated, it
+ * will be truncated if buf is too small.
+ * Note that the string is not interpreted or validated in any way, it
+ * might get truncated in the middle of a sequence for multi-byte encodings.
+ *
+ * @return number of bytes read (is always <= maxlen).
+ * If reading ends on EOF or error, the return value will be one more than
+ * bytes actually read.
+ */
+int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen);
+
+/**
+ * Read a UTF-16 string from pb and convert it to UTF-8.
+ * The reading will terminate when either a null or invalid character was
+ * encountered or maxlen bytes have been read.
+ * @return number of bytes read (is always <= maxlen)
+ */
+int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen);
+int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen);
+
+
+/**
+ * @name URL open modes
+ * The flags argument to avio_open must be one of the following
+ * constants, optionally ORed with other flags.
+ * @{
+ */
+#define AVIO_FLAG_READ 1 /**< read-only */
+#define AVIO_FLAG_WRITE 2 /**< write-only */
+#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */
+/**
+ * @}
+ */
+
+/**
+ * Use non-blocking mode.
+ * If this flag is set, operations on the context will return
+ * AVERROR(EAGAIN) if they can not be performed immediately.
+ * If this flag is not set, operations on the context will never return
+ * AVERROR(EAGAIN).
+ * Note that this flag does not affect the opening/connecting of the
+ * context. Connecting a protocol will always block if necessary (e.g. on
+ * network protocols) but never hang (e.g. on busy devices).
+ * Warning: non-blocking protocols is work-in-progress; this flag may be
+ * silently ignored.
+ */
+#define AVIO_FLAG_NONBLOCK 8
+
+/**
+ * Use direct mode.
+ * avio_read and avio_write should if possible be satisfied directly
+ * instead of going through a buffer, and avio_seek will always
+ * call the underlying seek function directly.
+ */
+#define AVIO_FLAG_DIRECT 0x8000
+
+/**
+ * Create and initialize a AVIOContext for accessing the
+ * resource indicated by url.
+ * @note When the resource indicated by url has been opened in
+ * read+write mode, the AVIOContext can be used only for writing.
+ *
+ * @param s Used to return the pointer to the created AVIOContext.
+ * In case of failure the pointed to value is set to NULL.
+ * @param flags flags which control how the resource indicated by url
+ * is to be opened
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code in case of failure
+ */
+int avio_open(AVIOContext **s, const char *url, int flags);
+
+/**
+ * Create and initialize a AVIOContext for accessing the
+ * resource indicated by url.
+ * @note When the resource indicated by url has been opened in
+ * read+write mode, the AVIOContext can be used only for writing.
+ *
+ * @param s Used to return the pointer to the created AVIOContext.
+ * In case of failure the pointed to value is set to NULL.
+ * @param flags flags which control how the resource indicated by url
+ * is to be opened
+ * @param int_cb an interrupt callback to be used at the protocols level
+ * @param options A dictionary filled with protocol-private options. On return
+ * this parameter will be destroyed and replaced with a dict containing options
+ * that were not found. May be NULL.
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code in case of failure
+ */
+int avio_open2(AVIOContext **s, const char *url, int flags,
+ const AVIOInterruptCB *int_cb, AVDictionary **options);
+
+/**
+ * Close the resource accessed by the AVIOContext s and free it.
+ * This function can only be used if s was opened by avio_open().
+ *
+ * The internal buffer is automatically flushed before closing the
+ * resource.
+ *
+ * @return 0 on success, an AVERROR < 0 on error.
+ * @see avio_closep
+ */
+int avio_close(AVIOContext *s);
+
+/**
+ * Close the resource accessed by the AVIOContext *s, free it
+ * and set the pointer pointing to it to NULL.
+ * This function can only be used if s was opened by avio_open().
+ *
+ * The internal buffer is automatically flushed before closing the
+ * resource.
+ *
+ * @return 0 on success, an AVERROR < 0 on error.
+ * @see avio_close
+ */
+int avio_closep(AVIOContext **s);
+
+
+/**
+ * Open a write only memory stream.
+ *
+ * @param s new IO context
+ * @return zero if no error.
+ */
+int avio_open_dyn_buf(AVIOContext **s);
+
+/**
+ * Return the written size and a pointer to the buffer. The buffer
+ * must be freed with av_free().
+ * Padding of FF_INPUT_BUFFER_PADDING_SIZE is added to the buffer.
+ *
+ * @param s IO context
+ * @param pbuffer pointer to a byte buffer
+ * @return the length of the byte buffer
+ */
+int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
+
+/**
+ * Iterate through names of available protocols.
+ *
+ * @param opaque A private pointer representing current protocol.
+ * It must be a pointer to NULL on first iteration and will
+ * be updated by successive calls to avio_enum_protocols.
+ * @param output If set to 1, iterate over output protocols,
+ * otherwise over input protocols.
+ *
+ * @return A static string containing the name of current protocol or NULL
+ */
+const char *avio_enum_protocols(void **opaque, int output);
+
+/**
+ * Pause and resume playing - only meaningful if using a network streaming
+ * protocol (e.g. MMS).
+ * @param pause 1 for pause, 0 for resume
+ */
+int avio_pause(AVIOContext *h, int pause);
+
+/**
+ * Seek to a given timestamp relative to some component stream.
+ * Only meaningful if using a network streaming protocol (e.g. MMS.).
+ * @param stream_index The stream index that the timestamp is relative to.
+ * If stream_index is (-1) the timestamp should be in AV_TIME_BASE
+ * units from the beginning of the presentation.
+ * If a stream_index >= 0 is used and the protocol does not support
+ * seeking based on component streams, the call will fail.
+ * @param timestamp timestamp in AVStream.time_base units
+ * or if there is no stream specified then in AV_TIME_BASE units.
+ * @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE
+ * and AVSEEK_FLAG_ANY. The protocol may silently ignore
+ * AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will
+ * fail if used and not supported.
+ * @return >= 0 on success
+ * @see AVInputFormat::read_seek
+ */
+int64_t avio_seek_time(AVIOContext *h, int stream_index,
+ int64_t timestamp, int flags);
+
+#endif /* AVFORMAT_AVIO_H */
diff --git a/thirdparties/mac/include/libavformat/version.h b/thirdparties/mac/include/libavformat/version.h
new file mode 100644
index 0000000..672b900
--- /dev/null
+++ b/thirdparties/mac/include/libavformat/version.h
@@ -0,0 +1,89 @@
+/*
+ * Version macros.
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVFORMAT_VERSION_H
+#define AVFORMAT_VERSION_H
+
+/**
+ * @file
+ * @ingroup libavf
+ * Libavformat version macros
+ */
+
+#include "libavutil/avutil.h"
+
+#define LIBAVFORMAT_VERSION_MAJOR 54
+#define LIBAVFORMAT_VERSION_MINOR 63
+#define LIBAVFORMAT_VERSION_MICRO 104
+
+#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
+ LIBAVFORMAT_VERSION_MINOR, \
+ LIBAVFORMAT_VERSION_MICRO)
+#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \
+ LIBAVFORMAT_VERSION_MINOR, \
+ LIBAVFORMAT_VERSION_MICRO)
+#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
+
+#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
+
+/**
+ * FF_API_* defines may be placed below to indicate public API that will be
+ * dropped at a future version bump. The defines themselves are not part of
+ * the public API and may change, break or disappear at any time.
+ */
+
+#ifndef FF_API_OLD_AVIO
+#define FF_API_OLD_AVIO (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_PKT_DUMP
+#define FF_API_PKT_DUMP (LIBAVFORMAT_VERSION_MAJOR < 54)
+#endif
+#ifndef FF_API_ALLOC_OUTPUT_CONTEXT
+#define FF_API_ALLOC_OUTPUT_CONTEXT (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_FORMAT_PARAMETERS
+#define FF_API_FORMAT_PARAMETERS (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_NEW_STREAM
+#define FF_API_NEW_STREAM (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_SET_PTS_INFO
+#define FF_API_SET_PTS_INFO (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_CLOSE_INPUT_FILE
+#define FF_API_CLOSE_INPUT_FILE (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_APPLEHTTP_PROTO
+#define FF_API_APPLEHTTP_PROTO (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_READ_PACKET
+#define FF_API_READ_PACKET (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_INTERLEAVE_PACKET
+#define FF_API_INTERLEAVE_PACKET (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_AV_GETTIME
+#define FF_API_AV_GETTIME (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+#ifndef FF_API_R_FRAME_RATE
+#define FF_API_R_FRAME_RATE (LIBAVFORMAT_VERSION_MAJOR < 55)
+#endif
+
+#endif /* AVFORMAT_VERSION_H */
diff --git a/thirdparties/mac/include/libavutil/adler32.h b/thirdparties/mac/include/libavutil/adler32.h
new file mode 100644
index 0000000..e926ef6
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/adler32.h
@@ -0,0 +1,43 @@
+/*
+ * copyright (c) 2006 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ADLER32_H
+#define AVUTIL_ADLER32_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+/**
+ * @ingroup lavu_crypto
+ * Calculate the Adler32 checksum of a buffer.
+ *
+ * Passing the return value to a subsequent av_adler32_update() call
+ * allows the checksum of multiple buffers to be calculated as though
+ * they were concatenated.
+ *
+ * @param adler initial checksum value
+ * @param buf pointer to input buffer
+ * @param len size of input buffer
+ * @return updated checksum
+ */
+unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf,
+ unsigned int len) av_pure;
+
+#endif /* AVUTIL_ADLER32_H */
diff --git a/thirdparties/mac/include/libavutil/aes.h b/thirdparties/mac/include/libavutil/aes.h
new file mode 100644
index 0000000..09efbda
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/aes.h
@@ -0,0 +1,65 @@
+/*
+ * copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AES_H
+#define AVUTIL_AES_H
+
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_aes AES
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+extern const int av_aes_size;
+
+struct AVAES;
+
+/**
+ * Allocate an AVAES context.
+ */
+struct AVAES *av_aes_alloc(void);
+
+/**
+ * Initialize an AVAES context.
+ * @param key_bits 128, 192 or 256
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ * @param count number of 16 byte blocks
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param iv initialization vector for CBC mode, if NULL then ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_AES_H */
diff --git a/thirdparties/mac/include/libavutil/attributes.h b/thirdparties/mac/include/libavutil/attributes.h
new file mode 100644
index 0000000..64b46f6
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/attributes.h
@@ -0,0 +1,154 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Macro definitions for various function/variable attributes
+ */
+
+#ifndef AVUTIL_ATTRIBUTES_H
+#define AVUTIL_ATTRIBUTES_H
+
+#ifdef __GNUC__
+# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > x || __GNUC__ == x && __GNUC_MINOR__ >= y)
+#else
+# define AV_GCC_VERSION_AT_LEAST(x,y) 0
+#endif
+
+#ifndef av_always_inline
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_always_inline __attribute__((always_inline)) inline
+#elif defined(_MSC_VER)
+# define av_always_inline __forceinline
+#else
+# define av_always_inline inline
+#endif
+#endif
+
+#ifndef av_extern_inline
+#if defined(__ICL) && __ICL >= 1210 || defined(__GNUC_STDC_INLINE__)
+# define av_extern_inline extern inline
+#else
+# define av_extern_inline inline
+#endif
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_noinline __attribute__((noinline))
+#else
+# define av_noinline
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_pure __attribute__((pure))
+#else
+# define av_pure
+#endif
+
+#ifndef av_restrict
+#define av_restrict restrict
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(2,6)
+# define av_const __attribute__((const))
+#else
+# define av_const
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(4,3)
+# define av_cold __attribute__((cold))
+#else
+# define av_cold
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(4,1)
+# define av_flatten __attribute__((flatten))
+#else
+# define av_flatten
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define attribute_deprecated __attribute__((deprecated))
+#else
+# define attribute_deprecated
+#endif
+
+/**
+ * Disable warnings about deprecated features
+ * This is useful for sections of code kept for backward compatibility and
+ * scheduled for removal.
+ */
+#ifndef AV_NOWARN_DEPRECATED
+#if AV_GCC_VERSION_AT_LEAST(4,6)
+# define AV_NOWARN_DEPRECATED(code) \
+ _Pragma("GCC diagnostic push") \
+ _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \
+ code \
+ _Pragma("GCC diagnostic pop")
+#else
+# define AV_NOWARN_DEPRECATED(code) code
+#endif
+#endif
+
+
+#if defined(__GNUC__)
+# define av_unused __attribute__((unused))
+#else
+# define av_unused
+#endif
+
+/**
+ * Mark a variable as used and prevent the compiler from optimizing it
+ * away. This is useful for variables accessed only from inline
+ * assembler without the compiler being aware.
+ */
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_used __attribute__((used))
+#else
+# define av_used
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(3,3)
+# define av_alias __attribute__((may_alias))
+#else
+# define av_alias
+#endif
+
+#if defined(__GNUC__) && !defined(__INTEL_COMPILER) && !defined(__clang__)
+# define av_uninit(x) x=x
+#else
+# define av_uninit(x) x
+#endif
+
+#ifdef __GNUC__
+# define av_builtin_constant_p __builtin_constant_p
+# define av_printf_format(fmtpos, attrpos) __attribute__((__format__(__printf__, fmtpos, attrpos)))
+#else
+# define av_builtin_constant_p(x) 0
+# define av_printf_format(fmtpos, attrpos)
+#endif
+
+#if AV_GCC_VERSION_AT_LEAST(2,5)
+# define av_noreturn __attribute__((noreturn))
+#else
+# define av_noreturn
+#endif
+
+#endif /* AVUTIL_ATTRIBUTES_H */
diff --git a/thirdparties/mac/include/libavutil/audio_fifo.h b/thirdparties/mac/include/libavutil/audio_fifo.h
new file mode 100644
index 0000000..8c76388
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/audio_fifo.h
@@ -0,0 +1,146 @@
+/*
+ * Audio FIFO
+ * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Audio FIFO Buffer
+ */
+
+#ifndef AVUTIL_AUDIO_FIFO_H
+#define AVUTIL_AUDIO_FIFO_H
+
+#include "avutil.h"
+#include "fifo.h"
+#include "samplefmt.h"
+
+/**
+ * @addtogroup lavu_audio
+ * @{
+ */
+
+/**
+ * Context for an Audio FIFO Buffer.
+ *
+ * - Operates at the sample level rather than the byte level.
+ * - Supports multiple channels with either planar or packed sample format.
+ * - Automatic reallocation when writing to a full buffer.
+ */
+typedef struct AVAudioFifo AVAudioFifo;
+
+/**
+ * Free an AVAudioFifo.
+ *
+ * @param af AVAudioFifo to free
+ */
+void av_audio_fifo_free(AVAudioFifo *af);
+
+/**
+ * Allocate an AVAudioFifo.
+ *
+ * @param sample_fmt sample format
+ * @param channels number of channels
+ * @param nb_samples initial allocation size, in samples
+ * @return newly allocated AVAudioFifo, or NULL on error
+ */
+AVAudioFifo *av_audio_fifo_alloc(enum AVSampleFormat sample_fmt, int channels,
+ int nb_samples);
+
+/**
+ * Reallocate an AVAudioFifo.
+ *
+ * @param af AVAudioFifo to reallocate
+ * @param nb_samples new allocation size, in samples
+ * @return 0 if OK, or negative AVERROR code on failure
+ */
+int av_audio_fifo_realloc(AVAudioFifo *af, int nb_samples);
+
+/**
+ * Write data to an AVAudioFifo.
+ *
+ * The AVAudioFifo will be reallocated automatically if the available space
+ * is less than nb_samples.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param af AVAudioFifo to write to
+ * @param data audio data plane pointers
+ * @param nb_samples number of samples to write
+ * @return number of samples actually written, or negative AVERROR
+ * code on failure.
+ */
+int av_audio_fifo_write(AVAudioFifo *af, void **data, int nb_samples);
+
+/**
+ * Read data from an AVAudioFifo.
+ *
+ * @see enum AVSampleFormat
+ * The documentation for AVSampleFormat describes the data layout.
+ *
+ * @param af AVAudioFifo to read from
+ * @param data audio data plane pointers
+ * @param nb_samples number of samples to read
+ * @return number of samples actually read, or negative AVERROR code
+ * on failure.
+ */
+int av_audio_fifo_read(AVAudioFifo *af, void **data, int nb_samples);
+
+/**
+ * Drain data from an AVAudioFifo.
+ *
+ * Removes the data without reading it.
+ *
+ * @param af AVAudioFifo to drain
+ * @param nb_samples number of samples to drain
+ * @return 0 if OK, or negative AVERROR code on failure
+ */
+int av_audio_fifo_drain(AVAudioFifo *af, int nb_samples);
+
+/**
+ * Reset the AVAudioFifo buffer.
+ *
+ * This empties all data in the buffer.
+ *
+ * @param af AVAudioFifo to reset
+ */
+void av_audio_fifo_reset(AVAudioFifo *af);
+
+/**
+ * Get the current number of samples in the AVAudioFifo available for reading.
+ *
+ * @param af the AVAudioFifo to query
+ * @return number of samples available for reading
+ */
+int av_audio_fifo_size(AVAudioFifo *af);
+
+/**
+ * Get the current number of samples in the AVAudioFifo available for writing.
+ *
+ * @param af the AVAudioFifo to query
+ * @return number of samples available for writing
+ */
+int av_audio_fifo_space(AVAudioFifo *af);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_AUDIO_FIFO_H */
diff --git a/thirdparties/mac/include/libavutil/audioconvert.h b/thirdparties/mac/include/libavutil/audioconvert.h
new file mode 100644
index 0000000..300a67c
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/audioconvert.h
@@ -0,0 +1,6 @@
+
+#include "version.h"
+
+#if FF_API_AUDIOCONVERT
+#include "channel_layout.h"
+#endif
diff --git a/thirdparties/mac/include/libavutil/avassert.h b/thirdparties/mac/include/libavutil/avassert.h
new file mode 100644
index 0000000..41f5e0e
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/avassert.h
@@ -0,0 +1,66 @@
+/*
+ * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * simple assert() macros that are a bit more flexible than ISO C assert().
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#ifndef AVUTIL_AVASSERT_H
+#define AVUTIL_AVASSERT_H
+
+#include <stdlib.h>
+#include "avutil.h"
+#include "log.h"
+
+/**
+ * assert() equivalent, that is always enabled.
+ */
+#define av_assert0(cond) do { \
+ if (!(cond)) { \
+ av_log(NULL, AV_LOG_PANIC, "Assertion %s failed at %s:%d\n", \
+ AV_STRINGIFY(cond), __FILE__, __LINE__); \
+ abort(); \
+ } \
+} while (0)
+
+
+/**
+ * assert() equivalent, that does not lie in speed critical code.
+ * These asserts() thus can be enabled without fearing speedloss.
+ */
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
+#define av_assert1(cond) av_assert0(cond)
+#else
+#define av_assert1(cond) ((void)0)
+#endif
+
+
+/**
+ * assert() equivalent, that does lie in speed critical code.
+ */
+#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
+#define av_assert2(cond) av_assert0(cond)
+#else
+#define av_assert2(cond) ((void)0)
+#endif
+
+#endif /* AVUTIL_AVASSERT_H */
diff --git a/thirdparties/mac/include/libavutil/avconfig.h b/thirdparties/mac/include/libavutil/avconfig.h
new file mode 100644
index 0000000..2ec333d
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/avconfig.h
@@ -0,0 +1,7 @@
+/* Generated by ffconf */
+#ifndef AVUTIL_AVCONFIG_H
+#define AVUTIL_AVCONFIG_H
+#define AV_HAVE_BIGENDIAN 0
+#define AV_HAVE_FAST_UNALIGNED 1
+#define AV_HAVE_INCOMPATIBLE_FORK_ABI 0
+#endif /* AVUTIL_AVCONFIG_H */
diff --git a/thirdparties/mac/include/libavutil/avstring.h b/thirdparties/mac/include/libavutil/avstring.h
new file mode 100644
index 0000000..5b078f1
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/avstring.h
@@ -0,0 +1,315 @@
+/*
+ * Copyright (c) 2007 Mans Rullgard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AVSTRING_H
+#define AVUTIL_AVSTRING_H
+
+#include <stddef.h>
+#include "attributes.h"
+
+/**
+ * @addtogroup lavu_string
+ * @{
+ */
+
+/**
+ * Return non-zero if pfx is a prefix of str. If it is, *ptr is set to
+ * the address of the first character in str after the prefix.
+ *
+ * @param str input string
+ * @param pfx prefix to test
+ * @param ptr updated if the prefix is matched inside str
+ * @return non-zero if the prefix matches, zero otherwise
+ */
+int av_strstart(const char *str, const char *pfx, const char **ptr);
+
+/**
+ * Return non-zero if pfx is a prefix of str independent of case. If
+ * it is, *ptr is set to the address of the first character in str
+ * after the prefix.
+ *
+ * @param str input string
+ * @param pfx prefix to test
+ * @param ptr updated if the prefix is matched inside str
+ * @return non-zero if the prefix matches, zero otherwise
+ */
+int av_stristart(const char *str, const char *pfx, const char **ptr);
+
+/**
+ * Locate the first case-independent occurrence in the string haystack
+ * of the string needle. A zero-length string needle is considered to
+ * match at the start of haystack.
+ *
+ * This function is a case-insensitive version of the standard strstr().
+ *
+ * @param haystack string to search in
+ * @param needle string to search for
+ * @return pointer to the located match within haystack
+ * or a null pointer if no match
+ */
+char *av_stristr(const char *haystack, const char *needle);
+
+/**
+ * Locate the first occurrence of the string needle in the string haystack
+ * where not more than hay_length characters are searched. A zero-length
+ * string needle is considered to match at the start of haystack.
+ *
+ * This function is a length-limited version of the standard strstr().
+ *
+ * @param haystack string to search in
+ * @param needle string to search for
+ * @param hay_length length of string to search in
+ * @return pointer to the located match within haystack
+ * or a null pointer if no match
+ */
+char *av_strnstr(const char *haystack, const char *needle, size_t hay_length);
+
+/**
+ * Copy the string src to dst, but no more than size - 1 bytes, and
+ * null-terminate dst.
+ *
+ * This function is the same as BSD strlcpy().
+ *
+ * @param dst destination buffer
+ * @param src source string
+ * @param size size of destination buffer
+ * @return the length of src
+ *
+ * @warning since the return value is the length of src, src absolutely
+ * _must_ be a properly 0-terminated string, otherwise this will read beyond
+ * the end of the buffer and possibly crash.
+ */
+size_t av_strlcpy(char *dst, const char *src, size_t size);
+
+/**
+ * Append the string src to the string dst, but to a total length of
+ * no more than size - 1 bytes, and null-terminate dst.
+ *
+ * This function is similar to BSD strlcat(), but differs when
+ * size <= strlen(dst).
+ *
+ * @param dst destination buffer
+ * @param src source string
+ * @param size size of destination buffer
+ * @return the total length of src and dst
+ *
+ * @warning since the return value use the length of src and dst, these
+ * absolutely _must_ be a properly 0-terminated strings, otherwise this
+ * will read beyond the end of the buffer and possibly crash.
+ */
+size_t av_strlcat(char *dst, const char *src, size_t size);
+
+/**
+ * Append output to a string, according to a format. Never write out of
+ * the destination buffer, and always put a terminating 0 within
+ * the buffer.
+ * @param dst destination buffer (string to which the output is
+ * appended)
+ * @param size total size of the destination buffer
+ * @param fmt printf-compatible format string, specifying how the
+ * following parameters are used
+ * @return the length of the string that would have been generated
+ * if enough space had been available
+ */
+size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...) av_printf_format(3, 4);
+
+/**
+ * Print arguments following specified format into a large enough auto
+ * allocated buffer. It is similar to GNU asprintf().
+ * @param fmt printf-compatible format string, specifying how the
+ * following parameters are used.
+ * @return the allocated string
+ * @note You have to free the string yourself with av_free().
+ */
+char *av_asprintf(const char *fmt, ...) av_printf_format(1, 2);
+
+/**
+ * Convert a number to a av_malloced string.
+ */
+char *av_d2str(double d);
+
+/**
+ * Unescape the given string until a non escaped terminating char,
+ * and return the token corresponding to the unescaped string.
+ *
+ * The normal \ and ' escaping is supported. Leading and trailing
+ * whitespaces are removed, unless they are escaped with '\' or are
+ * enclosed between ''.
+ *
+ * @param buf the buffer to parse, buf will be updated to point to the
+ * terminating char
+ * @param term a 0-terminated list of terminating chars
+ * @return the malloced unescaped string, which must be av_freed by
+ * the user, NULL in case of allocation failure
+ */
+char *av_get_token(const char **buf, const char *term);
+
+/**
+ * Split the string into several tokens which can be accessed by
+ * successive calls to av_strtok().
+ *
+ * A token is defined as a sequence of characters not belonging to the
+ * set specified in delim.
+ *
+ * On the first call to av_strtok(), s should point to the string to
+ * parse, and the value of saveptr is ignored. In subsequent calls, s
+ * should be NULL, and saveptr should be unchanged since the previous
+ * call.
+ *
+ * This function is similar to strtok_r() defined in POSIX.1.
+ *
+ * @param s the string to parse, may be NULL
+ * @param delim 0-terminated list of token delimiters, must be non-NULL
+ * @param saveptr user-provided pointer which points to stored
+ * information necessary for av_strtok() to continue scanning the same
+ * string. saveptr is updated to point to the next character after the
+ * first delimiter found, or to NULL if the string was terminated
+ * @return the found token, or NULL when no token is found
+ */
+char *av_strtok(char *s, const char *delim, char **saveptr);
+
+/**
+ * Locale-independent conversion of ASCII isdigit.
+ */
+static inline int av_isdigit(int c)
+{
+ return c >= '0' && c <= '9';
+}
+
+/**
+ * Locale-independent conversion of ASCII isgraph.
+ */
+static inline int av_isgraph(int c)
+{
+ return c > 32 && c < 127;
+}
+
+/**
+ * Locale-independent conversion of ASCII isspace.
+ */
+static inline int av_isspace(int c)
+{
+ return c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v';
+}
+
+/**
+ * Locale-independent conversion of ASCII characters to uppercase.
+ */
+static inline int av_toupper(int c)
+{
+ if (c >= 'a' && c <= 'z')
+ c ^= 0x20;
+ return c;
+}
+
+/**
+ * Locale-independent conversion of ASCII characters to lowercase.
+ */
+static inline int av_tolower(int c)
+{
+ if (c >= 'A' && c <= 'Z')
+ c ^= 0x20;
+ return c;
+}
+
+/**
+ * Locale-independent conversion of ASCII isxdigit.
+ */
+static inline int av_isxdigit(int c)
+{
+ c = av_tolower(c);
+ return av_isdigit(c) || (c >= 'a' && c <= 'z');
+}
+
+/**
+ * Locale-independent case-insensitive compare.
+ * @note This means only ASCII-range characters are case-insensitive
+ */
+int av_strcasecmp(const char *a, const char *b);
+
+/**
+ * Locale-independent case-insensitive compare.
+ * @note This means only ASCII-range characters are case-insensitive
+ */
+int av_strncasecmp(const char *a, const char *b, size_t n);
+
+
+/**
+ * Thread safe basename.
+ * @param path the path, on DOS both \ and / are considered separators.
+ * @return pointer to the basename substring.
+ */
+const char *av_basename(const char *path);
+
+/**
+ * Thread safe dirname.
+ * @param path the path, on DOS both \ and / are considered separators.
+ * @return the path with the separator replaced by the string terminator or ".".
+ * @note the function may change the input string.
+ */
+const char *av_dirname(char *path);
+
+enum AVEscapeMode {
+ AV_ESCAPE_MODE_AUTO, ///< Use auto-selected escaping mode.
+ AV_ESCAPE_MODE_BACKSLASH, ///< Use backslash escaping.
+ AV_ESCAPE_MODE_QUOTE, ///< Use single-quote escaping.
+};
+
+/**
+ * Consider spaces special and escape them even in the middle of the
+ * string.
+ *
+ * This is equivalent to adding the whitespace characters to the special
+ * characters lists, except it is guaranteed to use the exact same list
+ * of whitespace characters as the rest of libavutil.
+ */
+#define AV_ESCAPE_FLAG_WHITESPACE 0x01
+
+/**
+ * Escape only specified special characters.
+ * Without this flag, escape also any characters that may be considered
+ * special by av_get_token(), such as the single quote.
+ */
+#define AV_ESCAPE_FLAG_STRICT 0x02
+
+/**
+ * Escape string in src, and put the escaped string in an allocated
+ * string in *dst, which must be freed with av_free().
+ *
+ * @param dst pointer where an allocated string is put
+ * @param src string to escape, must be non-NULL
+ * @param special_chars string containing the special characters which
+ * need to be escaped, can be NULL
+ * @param mode escape mode to employ, see AV_ESCAPE_MODE_* macros.
+ * Any unknown value for mode will be considered equivalent to
+ * AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without
+ * notice.
+ * @param flags flags which control how to escape, see AV_ESCAPE_FLAG_ macros
+ * @return the length of the allocated string, or a negative error code in case of error
+ * @see av_bprint_escape()
+ */
+int av_escape(char **dst, const char *src, const char *special_chars,
+ enum AVEscapeMode mode, int flags);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_AVSTRING_H */
diff --git a/thirdparties/mac/include/libavutil/avutil.h b/thirdparties/mac/include/libavutil/avutil.h
new file mode 100644
index 0000000..78deff1
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/avutil.h
@@ -0,0 +1,260 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_AVUTIL_H
+#define AVUTIL_AVUTIL_H
+
+/**
+ * @file
+ * external API header
+ */
+
+/**
+ * @mainpage
+ *
+ * @section ffmpeg_intro Introduction
+ *
+ * This document describes the usage of the different libraries
+ * provided by FFmpeg.
+ *
+ * @li @ref libavc "libavcodec" encoding/decoding library
+ * @li @ref lavfi "libavfilter" graph based frame editing library
+ * @li @ref libavf "libavformat" I/O and muxing/demuxing library
+ * @li @ref lavd "libavdevice" special devices muxing/demuxing library
+ * @li @ref lavu "libavutil" common utility library
+ * @li @ref lswr "libswresample" audio resampling, format conversion and mixing
+ * @li @ref lpp "libpostproc" post processing library
+ * @li @ref lsws "libswscale" color conversion and scaling library
+ */
+
+/**
+ * @defgroup lavu Common utility functions
+ *
+ * @brief
+ * libavutil contains the code shared across all the other FFmpeg
+ * libraries
+ *
+ * @note In order to use the functions provided by avutil you must include
+ * the specific header.
+ *
+ * @{
+ *
+ * @defgroup lavu_crypto Crypto and Hashing
+ *
+ * @{
+ * @}
+ *
+ * @defgroup lavu_math Maths
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_string String Manipulation
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_mem Memory Management
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_data Data Structures
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_audio Audio related
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_error Error Codes
+ *
+ * @{
+ *
+ * @}
+ *
+ * @defgroup lavu_misc Other
+ *
+ * @{
+ *
+ * @defgroup lavu_internal Internal
+ *
+ * Not exported functions, for internal usage only
+ *
+ * @{
+ *
+ * @}
+ */
+
+
+/**
+ * @addtogroup lavu_ver
+ * @{
+ */
+
+/**
+ * Return the LIBAVUTIL_VERSION_INT constant.
+ */
+unsigned avutil_version(void);
+
+/**
+ * Return the libavutil build-time configuration.
+ */
+const char *avutil_configuration(void);
+
+/**
+ * Return the libavutil license.
+ */
+const char *avutil_license(void);
+
+/**
+ * @}
+ */
+
+/**
+ * @addtogroup lavu_media Media Type
+ * @brief Media Type
+ */
+
+enum AVMediaType {
+ AVMEDIA_TYPE_UNKNOWN = -1, ///< Usually treated as AVMEDIA_TYPE_DATA
+ AVMEDIA_TYPE_VIDEO,
+ AVMEDIA_TYPE_AUDIO,
+ AVMEDIA_TYPE_DATA, ///< Opaque data information usually continuous
+ AVMEDIA_TYPE_SUBTITLE,
+ AVMEDIA_TYPE_ATTACHMENT, ///< Opaque data information usually sparse
+ AVMEDIA_TYPE_NB
+};
+
+/**
+ * Return a string describing the media_type enum, NULL if media_type
+ * is unknown.
+ */
+const char *av_get_media_type_string(enum AVMediaType media_type);
+
+/**
+ * @defgroup lavu_const Constants
+ * @{
+ *
+ * @defgroup lavu_enc Encoding specific
+ *
+ * @note those definition should move to avcodec
+ * @{
+ */
+
+#define FF_LAMBDA_SHIFT 7
+#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
+#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
+#define FF_LAMBDA_MAX (256*128-1)
+
+#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
+
+/**
+ * @}
+ * @defgroup lavu_time Timestamp specific
+ *
+ * FFmpeg internal timebase and timestamp definitions
+ *
+ * @{
+ */
+
+/**
+ * @brief Undefined timestamp value
+ *
+ * Usually reported by demuxer that work on containers that do not provide
+ * either pts or dts.
+ */
+
+#define AV_NOPTS_VALUE ((int64_t)UINT64_C(0x8000000000000000))
+
+/**
+ * Internal time base represented as integer
+ */
+
+#define AV_TIME_BASE 1000000
+
+/**
+ * Internal time base represented as fractional value
+ */
+
+#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
+
+/**
+ * @}
+ * @}
+ * @defgroup lavu_picture Image related
+ *
+ * AVPicture types, pixel formats and basic image planes manipulation.
+ *
+ * @{
+ */
+
+enum AVPictureType {
+ AV_PICTURE_TYPE_NONE = 0, ///< Undefined
+ AV_PICTURE_TYPE_I, ///< Intra
+ AV_PICTURE_TYPE_P, ///< Predicted
+ AV_PICTURE_TYPE_B, ///< Bi-dir predicted
+ AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG4
+ AV_PICTURE_TYPE_SI, ///< Switching Intra
+ AV_PICTURE_TYPE_SP, ///< Switching Predicted
+ AV_PICTURE_TYPE_BI, ///< BI type
+};
+
+/**
+ * Return a single letter to describe the given picture type
+ * pict_type.
+ *
+ * @param[in] pict_type the picture type @return a single character
+ * representing the picture type, '?' if pict_type is unknown
+ */
+char av_get_picture_type_char(enum AVPictureType pict_type);
+
+/**
+ * @}
+ */
+
+#include "common.h"
+#include "error.h"
+#include "version.h"
+#include "mathematics.h"
+#include "rational.h"
+#include "intfloat_readwrite.h"
+#include "log.h"
+#include "pixfmt.h"
+
+/**
+ * Return x default pointer in case p is NULL.
+ */
+static inline void *av_x_if_null(const void *p, const void *x)
+{
+ return (void *)(intptr_t)(p ? p : x);
+}
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* AVUTIL_AVUTIL_H */
diff --git a/thirdparties/mac/include/libavutil/base64.h b/thirdparties/mac/include/libavutil/base64.h
new file mode 100644
index 0000000..514498e
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/base64.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BASE64_H
+#define AVUTIL_BASE64_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_base64 Base64
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+
+/**
+ * Decode a base64-encoded string.
+ *
+ * @param out buffer for decoded data
+ * @param in null-terminated input string
+ * @param out_size size in bytes of the out buffer, must be at
+ * least 3/4 of the length of in
+ * @return number of bytes written, or a negative value in case of
+ * invalid input
+ */
+int av_base64_decode(uint8_t *out, const char *in, int out_size);
+
+/**
+ * Encode data to base64 and null-terminate.
+ *
+ * @param out buffer for encoded data
+ * @param out_size size in bytes of the out buffer (including the
+ * null terminator), must be at least AV_BASE64_SIZE(in_size)
+ * @param in input buffer containing the data to encode
+ * @param in_size size in bytes of the in buffer
+ * @return out or NULL in case of error
+ */
+char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
+
+/**
+ * Calculate the output size needed to base64-encode x bytes to a
+ * null-terminated string.
+ */
+#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
+
+ /**
+ * @}
+ */
+
+#endif /* AVUTIL_BASE64_H */
diff --git a/thirdparties/mac/include/libavutil/blowfish.h b/thirdparties/mac/include/libavutil/blowfish.h
new file mode 100644
index 0000000..0b00453
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/blowfish.h
@@ -0,0 +1,77 @@
+/*
+ * Blowfish algorithm
+ * Copyright (c) 2012 Samuel Pitoiset
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BLOWFISH_H
+#define AVUTIL_BLOWFISH_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_blowfish Blowfish
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+#define AV_BF_ROUNDS 16
+
+typedef struct AVBlowfish {
+ uint32_t p[AV_BF_ROUNDS + 2];
+ uint32_t s[4][256];
+} AVBlowfish;
+
+/**
+ * Initialize an AVBlowfish context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param key a key
+ * @param key_len length of the key
+ */
+void av_blowfish_init(struct AVBlowfish *ctx, const uint8_t *key, int key_len);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param xl left four bytes halves of input to be encrypted
+ * @param xr right four bytes halves of input to be encrypted
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_blowfish_crypt_ecb(struct AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
+ int decrypt);
+
+/**
+ * Encrypt or decrypt a buffer using a previously initialized context.
+ *
+ * @param ctx an AVBlowfish context
+ * @param dst destination array, can be equal to src
+ * @param src source array, can be equal to dst
+ * @param count number of 8 byte blocks
+ * @param iv initialization vector for CBC mode, if NULL ECB will be used
+ * @param decrypt 0 for encryption, 1 for decryption
+ */
+void av_blowfish_crypt(struct AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
+ int count, uint8_t *iv, int decrypt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_BLOWFISH_H */
diff --git a/thirdparties/mac/include/libavutil/bprint.h b/thirdparties/mac/include/libavutil/bprint.h
new file mode 100644
index 0000000..df78916
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/bprint.h
@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 2012 Nicolas George
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_BPRINT_H
+#define AVUTIL_BPRINT_H
+
+#include "attributes.h"
+#include "avstring.h"
+
+/**
+ * Define a structure with extra padding to a fixed size
+ * This helps ensuring binary compatibility with future versions.
+ */
+#define FF_PAD_STRUCTURE(size, ...) \
+ __VA_ARGS__ \
+ char reserved_padding[size - sizeof(struct { __VA_ARGS__ })];
+
+/**
+ * Buffer to print data progressively
+ *
+ * The string buffer grows as necessary and is always 0-terminated.
+ * The content of the string is never accessed, and thus is
+ * encoding-agnostic and can even hold binary data.
+ *
+ * Small buffers are kept in the structure itself, and thus require no
+ * memory allocation at all (unless the contents of the buffer is needed
+ * after the structure goes out of scope). This is almost as lightweight as
+ * declaring a local "char buf[512]".
+ *
+ * The length of the string can go beyond the allocated size: the buffer is
+ * then truncated, but the functions still keep account of the actual total
+ * length.
+ *
+ * In other words, buf->len can be greater than buf->size and records the
+ * total length of what would have been to the buffer if there had been
+ * enough memory.
+ *
+ * Append operations do not need to be tested for failure: if a memory
+ * allocation fails, data stop being appended to the buffer, but the length
+ * is still updated. This situation can be tested with
+ * av_bprint_is_complete().
+ *
+ * The size_max field determines several possible behaviours:
+ *
+ * size_max = -1 (= UINT_MAX) or any large value will let the buffer be
+ * reallocated as necessary, with an amortized linear cost.
+ *
+ * size_max = 0 prevents writing anything to the buffer: only the total
+ * length is computed. The write operations can then possibly be repeated in
+ * a buffer with exactly the necessary size
+ * (using size_init = size_max = len + 1).
+ *
+ * size_max = 1 is automatically replaced by the exact size available in the
+ * structure itself, thus ensuring no dynamic memory allocation. The
+ * internal buffer is large enough to hold a reasonable paragraph of text,
+ * such as the current paragraph.
+ */
+typedef struct AVBPrint {
+ FF_PAD_STRUCTURE(1024,
+ char *str; /** string so far */
+ unsigned len; /** length so far */
+ unsigned size; /** allocated memory */
+ unsigned size_max; /** maximum allocated memory */
+ char reserved_internal_buffer[1];
+ )
+} AVBPrint;
+
+/**
+ * Convenience macros for special values for av_bprint_init() size_max
+ * parameter.
+ */
+#define AV_BPRINT_SIZE_UNLIMITED ((unsigned)-1)
+#define AV_BPRINT_SIZE_AUTOMATIC 1
+#define AV_BPRINT_SIZE_COUNT_ONLY 0
+
+/**
+ * Init a print buffer.
+ *
+ * @param buf buffer to init
+ * @param size_init initial size (including the final 0)
+ * @param size_max maximum size;
+ * 0 means do not write anything, just count the length;
+ * 1 is replaced by the maximum value for automatic storage;
+ * any large value means that the internal buffer will be
+ * reallocated as needed up to that limit; -1 is converted to
+ * UINT_MAX, the largest limit possible.
+ * Check also AV_BPRINT_SIZE_* macros.
+ */
+void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max);
+
+/**
+ * Init a print buffer using a pre-existing buffer.
+ *
+ * The buffer will not be reallocated.
+ *
+ * @param buf buffer structure to init
+ * @param buffer byte buffer to use for the string data
+ * @param size size of buffer
+ */
+void av_bprint_init_for_buffer(AVBPrint *buf, char *buffer, unsigned size);
+
+/**
+ * Append a formatted string to a print buffer.
+ */
+void av_bprintf(AVBPrint *buf, const char *fmt, ...) av_printf_format(2, 3);
+
+/**
+ * Append char c n times to a print buffer.
+ */
+void av_bprint_chars(AVBPrint *buf, char c, unsigned n);
+
+struct tm;
+/**
+ * Append a formatted date and time to a print buffer.
+ *
+ * param buf bprint buffer to use
+ * param fmt date and time format string, see strftime()
+ * param tm broken-down time structure to translate
+ *
+ * @note due to poor design of the standard strftime function, it may
+ * produce poor results if the format string expands to a very long text and
+ * the bprint buffer is near the limit stated by the size_max option.
+ */
+void av_bprint_strftime(AVBPrint *buf, const char *fmt, const struct tm *tm);
+
+/**
+ * Allocate bytes in the buffer for external use.
+ *
+ * @param[in] buf buffer structure
+ * @param[in] size required size
+ * @param[out] mem pointer to the memory area
+ * @param[out] actual_size size of the memory area after allocation;
+ * can be larger or smaller than size
+ */
+void av_bprint_get_buffer(AVBPrint *buf, unsigned size,
+ unsigned char **mem, unsigned *actual_size);
+
+/**
+ * Reset the string to "" but keep internal allocated data.
+ */
+void av_bprint_clear(AVBPrint *buf);
+
+/**
+ * Test if the print buffer is complete (not truncated).
+ *
+ * It may have been truncated due to a memory allocation failure
+ * or the size_max limit (compare size and size_max if necessary).
+ */
+static inline int av_bprint_is_complete(AVBPrint *buf)
+{
+ return buf->len < buf->size;
+}
+
+/**
+ * Finalize a print buffer.
+ *
+ * The print buffer can no longer be used afterwards,
+ * but the len and size fields are still valid.
+ *
+ * @arg[out] ret_str if not NULL, used to return a permanent copy of the
+ * buffer contents, or NULL if memory allocation fails;
+ * if NULL, the buffer is discarded and freed
+ * @return 0 for success or error code (probably AVERROR(ENOMEM))
+ */
+int av_bprint_finalize(AVBPrint *buf, char **ret_str);
+
+/**
+ * Escape the content in src and append it to dstbuf.
+ *
+ * @param dstbuf already inited destination bprint buffer
+ * @param src string containing the text to escape
+ * @param special_chars string containing the special characters which
+ * need to be escaped, can be NULL
+ * @param mode escape mode to employ, see AV_ESCAPE_MODE_* macros.
+ * Any unknown value for mode will be considered equivalent to
+ * AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without
+ * notice.
+ * @param flags flags which control how to escape, see AV_ESCAPE_FLAG_* macros
+ */
+void av_bprint_escape(AVBPrint *dstbuf, const char *src, const char *special_chars,
+ enum AVEscapeMode mode, int flags);
+
+#endif /* AVUTIL_BPRINT_H */
diff --git a/thirdparties/mac/include/libavutil/bswap.h b/thirdparties/mac/include/libavutil/bswap.h
new file mode 100644
index 0000000..06f6548
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/bswap.h
@@ -0,0 +1,109 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * byte swapping routines
+ */
+
+#ifndef AVUTIL_BSWAP_H
+#define AVUTIL_BSWAP_H
+
+#include <stdint.h>
+#include "libavutil/avconfig.h"
+#include "attributes.h"
+
+#ifdef HAVE_AV_CONFIG_H
+
+#include "config.h"
+
+#if ARCH_ARM
+# include "arm/bswap.h"
+#elif ARCH_AVR32
+# include "avr32/bswap.h"
+#elif ARCH_BFIN
+# include "bfin/bswap.h"
+#elif ARCH_SH4
+# include "sh4/bswap.h"
+#elif ARCH_X86
+# include "x86/bswap.h"
+#endif
+
+#endif /* HAVE_AV_CONFIG_H */
+
+#define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff))
+#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16))
+#define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32))
+
+#define AV_BSWAPC(s, x) AV_BSWAP##s##C(x)
+
+#ifndef av_bswap16
+static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
+{
+ x= (x>>8) | (x<<8);
+ return x;
+}
+#endif
+
+#ifndef av_bswap32
+static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
+{
+ return AV_BSWAP32C(x);
+}
+#endif
+
+#ifndef av_bswap64
+static inline uint64_t av_const av_bswap64(uint64_t x)
+{
+ return (uint64_t)av_bswap32(x) << 32 | av_bswap32(x >> 32);
+}
+#endif
+
+// be2ne ... big-endian to native-endian
+// le2ne ... little-endian to native-endian
+
+#if AV_HAVE_BIGENDIAN
+#define av_be2ne16(x) (x)
+#define av_be2ne32(x) (x)
+#define av_be2ne64(x) (x)
+#define av_le2ne16(x) av_bswap16(x)
+#define av_le2ne32(x) av_bswap32(x)
+#define av_le2ne64(x) av_bswap64(x)
+#define AV_BE2NEC(s, x) (x)
+#define AV_LE2NEC(s, x) AV_BSWAPC(s, x)
+#else
+#define av_be2ne16(x) av_bswap16(x)
+#define av_be2ne32(x) av_bswap32(x)
+#define av_be2ne64(x) av_bswap64(x)
+#define av_le2ne16(x) (x)
+#define av_le2ne32(x) (x)
+#define av_le2ne64(x) (x)
+#define AV_BE2NEC(s, x) AV_BSWAPC(s, x)
+#define AV_LE2NEC(s, x) (x)
+#endif
+
+#define AV_BE2NE16C(x) AV_BE2NEC(16, x)
+#define AV_BE2NE32C(x) AV_BE2NEC(32, x)
+#define AV_BE2NE64C(x) AV_BE2NEC(64, x)
+#define AV_LE2NE16C(x) AV_LE2NEC(16, x)
+#define AV_LE2NE32C(x) AV_LE2NEC(32, x)
+#define AV_LE2NE64C(x) AV_LE2NEC(64, x)
+
+#endif /* AVUTIL_BSWAP_H */
diff --git a/thirdparties/mac/include/libavutil/channel_layout.h b/thirdparties/mac/include/libavutil/channel_layout.h
new file mode 100644
index 0000000..2906098
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/channel_layout.h
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ * Copyright (c) 2008 Peter Ross
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CHANNEL_LAYOUT_H
+#define AVUTIL_CHANNEL_LAYOUT_H
+
+#include <stdint.h>
+
+/**
+ * @file
+ * audio channel layout utility functions
+ */
+
+/**
+ * @addtogroup lavu_audio
+ * @{
+ */
+
+/**
+ * @defgroup channel_masks Audio channel masks
+ *
+ * A channel layout is a 64-bits integer with a bit set for every channel.
+ * The number of bits set must be equal to the number of channels.
+ * The value 0 means that the channel layout is not known.
+ * @note this data structure is not powerful enough to handle channels
+ * combinations that have the same channel multiple times, such as
+ * dual-mono.
+ *
+ * @{
+ */
+#define AV_CH_FRONT_LEFT 0x00000001
+#define AV_CH_FRONT_RIGHT 0x00000002
+#define AV_CH_FRONT_CENTER 0x00000004
+#define AV_CH_LOW_FREQUENCY 0x00000008
+#define AV_CH_BACK_LEFT 0x00000010
+#define AV_CH_BACK_RIGHT 0x00000020
+#define AV_CH_FRONT_LEFT_OF_CENTER 0x00000040
+#define AV_CH_FRONT_RIGHT_OF_CENTER 0x00000080
+#define AV_CH_BACK_CENTER 0x00000100
+#define AV_CH_SIDE_LEFT 0x00000200
+#define AV_CH_SIDE_RIGHT 0x00000400
+#define AV_CH_TOP_CENTER 0x00000800
+#define AV_CH_TOP_FRONT_LEFT 0x00001000
+#define AV_CH_TOP_FRONT_CENTER 0x00002000
+#define AV_CH_TOP_FRONT_RIGHT 0x00004000
+#define AV_CH_TOP_BACK_LEFT 0x00008000
+#define AV_CH_TOP_BACK_CENTER 0x00010000
+#define AV_CH_TOP_BACK_RIGHT 0x00020000
+#define AV_CH_STEREO_LEFT 0x20000000 ///< Stereo downmix.
+#define AV_CH_STEREO_RIGHT 0x40000000 ///< See AV_CH_STEREO_LEFT.
+#define AV_CH_WIDE_LEFT 0x0000000080000000ULL
+#define AV_CH_WIDE_RIGHT 0x0000000100000000ULL
+#define AV_CH_SURROUND_DIRECT_LEFT 0x0000000200000000ULL
+#define AV_CH_SURROUND_DIRECT_RIGHT 0x0000000400000000ULL
+#define AV_CH_LOW_FREQUENCY_2 0x0000000800000000ULL
+
+/** Channel mask value used for AVCodecContext.request_channel_layout
+ to indicate that the user requests the channel order of the decoder output
+ to be the native codec channel order. */
+#define AV_CH_LAYOUT_NATIVE 0x8000000000000000ULL
+
+/**
+ * @}
+ * @defgroup channel_mask_c Audio channel convenience macros
+ * @{
+ * */
+#define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER)
+#define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
+#define AV_CH_LAYOUT_2POINT1 (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
+#define AV_CH_LAYOUT_3POINT1 (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_4POINT1 (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
+#define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
+#define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_6POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT0_FRONT (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_HEXAGONAL (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT1_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER)
+#define AV_CH_LAYOUT_6POINT1_FRONT (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY)
+#define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_7POINT0_FRONT (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_7POINT1_WIDE_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
+#define AV_CH_LAYOUT_OCTAGONAL (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT)
+#define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
+
+enum AVMatrixEncoding {
+ AV_MATRIX_ENCODING_NONE,
+ AV_MATRIX_ENCODING_DOLBY,
+ AV_MATRIX_ENCODING_DPLII,
+ AV_MATRIX_ENCODING_NB
+};
+
+/**
+ * @}
+ */
+
+/**
+ * Return a channel layout id that matches name, or 0 if no match is found.
+ *
+ * name can be one or several of the following notations,
+ * separated by '+' or '|':
+ * - the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0,
+ * 5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix);
+ * - the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC,
+ * SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR);
+ * - a number of channels, in decimal, optionally followed by 'c', yielding
+ * the default channel layout for that number of channels (@see
+ * av_get_default_channel_layout);
+ * - a channel layout mask, in hexadecimal starting with "0x" (see the
+ * AV_CH_* macros).
+ *
+ * Example: "stereo+FC" = "2+FC" = "2c+1c" = "0x7"
+ */
+uint64_t av_get_channel_layout(const char *name);
+
+/**
+ * Return a description of a channel layout.
+ * If nb_channels is <= 0, it is guessed from the channel_layout.
+ *
+ * @param buf put here the string containing the channel layout
+ * @param buf_size size in bytes of the buffer
+ */
+void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout);
+
+struct AVBPrint;
+/**
+ * Append a description of a channel layout to a bprint buffer.
+ */
+void av_bprint_channel_layout(struct AVBPrint *bp, int nb_channels, uint64_t channel_layout);
+
+/**
+ * Return the number of channels in the channel layout.
+ */
+int av_get_channel_layout_nb_channels(uint64_t channel_layout);
+
+/**
+ * Return default channel layout for a given number of channels.
+ */
+int64_t av_get_default_channel_layout(int nb_channels);
+
+/**
+ * Get the index of a channel in channel_layout.
+ *
+ * @param channel a channel layout describing exactly one channel which must be
+ * present in channel_layout.
+ *
+ * @return index of channel in channel_layout on success, a negative AVERROR
+ * on error.
+ */
+int av_get_channel_layout_channel_index(uint64_t channel_layout,
+ uint64_t channel);
+
+/**
+ * Get the channel with the given index in channel_layout.
+ */
+uint64_t av_channel_layout_extract_channel(uint64_t channel_layout, int index);
+
+/**
+ * Get the name of a given channel.
+ *
+ * @return channel name on success, NULL on error.
+ */
+const char *av_get_channel_name(uint64_t channel);
+
+/**
+ * Get the description of a given channel.
+ *
+ * @param channel a channel layout with a single channel
+ * @return channel description on success, NULL on error
+ */
+const char *av_get_channel_description(uint64_t channel);
+
+/**
+ * Get the value and name of a standard channel layout.
+ *
+ * @param[in] index index in an internal list, starting at 0
+ * @param[out] layout channel layout mask
+ * @param[out] name name of the layout
+ * @return 0 if the layout exists,
+ * <0 if index is beyond the limits
+ */
+int av_get_standard_channel_layout(unsigned index, uint64_t *layout,
+ const char **name);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_CHANNEL_LAYOUT_H */
diff --git a/thirdparties/mac/include/libavutil/common.h b/thirdparties/mac/include/libavutil/common.h
new file mode 100644
index 0000000..beaf9f7
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/common.h
@@ -0,0 +1,436 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * common internal and external API header
+ */
+
+#ifndef AVUTIL_COMMON_H
+#define AVUTIL_COMMON_H
+
+#include <errno.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "attributes.h"
+#include "version.h"
+#include "libavutil/avconfig.h"
+
+#if AV_HAVE_BIGENDIAN
+# define AV_NE(be, le) (be)
+#else
+# define AV_NE(be, le) (le)
+#endif
+
+//rounded division & shift
+#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
+/* assume b>0 */
+#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
+#define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b))
+#define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b))
+#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
+#define FFSIGN(a) ((a) > 0 ? 1 : -1)
+
+#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
+#define FFMAX3(a,b,c) FFMAX(FFMAX(a,b),c)
+#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
+#define FFMIN3(a,b,c) FFMIN(FFMIN(a,b),c)
+
+#define FFSWAP(type,a,b) do{type SWAP_tmp= b; b= a; a= SWAP_tmp;}while(0)
+#define FF_ARRAY_ELEMS(a) (sizeof(a) / sizeof((a)[0]))
+#define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1))
+
+/* misc math functions */
+
+/**
+ * Reverse the order of the bits of an 8-bits unsigned integer.
+ */
+#if FF_API_AV_REVERSE
+extern attribute_deprecated const uint8_t av_reverse[256];
+#endif
+
+#ifdef HAVE_AV_CONFIG_H
+# include "config.h"
+# include "intmath.h"
+#endif
+
+/* Pull in unguarded fallback defines at the end of this file. */
+#include "common.h"
+
+#ifndef av_log2
+av_const int av_log2(unsigned v);
+#endif
+
+#ifndef av_log2_16bit
+av_const int av_log2_16bit(unsigned v);
+#endif
+
+/**
+ * Clip a signed integer value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const int av_clip_c(int a, int amin, int amax)
+{
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+ if (amin > amax) abort();
+#endif
+ if (a < amin) return amin;
+ else if (a > amax) return amax;
+ else return a;
+}
+
+/**
+ * Clip a signed 64bit integer value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const int64_t av_clip64_c(int64_t a, int64_t amin, int64_t amax)
+{
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+ if (amin > amax) abort();
+#endif
+ if (a < amin) return amin;
+ else if (a > amax) return amax;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the 0-255 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const uint8_t av_clip_uint8_c(int a)
+{
+ if (a&(~0xFF)) return (-a)>>31;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the -128,127 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int8_t av_clip_int8_c(int a)
+{
+ if ((a+0x80) & ~0xFF) return (a>>31) ^ 0x7F;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the 0-65535 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
+{
+ if (a&(~0xFFFF)) return (-a)>>31;
+ else return a;
+}
+
+/**
+ * Clip a signed integer value into the -32768,32767 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int16_t av_clip_int16_c(int a)
+{
+ if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
+ else return a;
+}
+
+/**
+ * Clip a signed 64-bit integer value into the -2147483648,2147483647 range.
+ * @param a value to clip
+ * @return clipped value
+ */
+static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a)
+{
+ if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF;
+ else return (int32_t)a;
+}
+
+/**
+ * Clip a signed integer to an unsigned power of two range.
+ * @param a value to clip
+ * @param p bit position to clip at
+ * @return clipped value
+ */
+static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
+{
+ if (a & ~((1<<p) - 1)) return -a >> 31 & ((1<<p) - 1);
+ else return a;
+}
+
+/**
+ * Add two signed 32-bit values with saturation.
+ *
+ * @param a one value
+ * @param b another value
+ * @return sum with signed saturation
+ */
+static av_always_inline int av_sat_add32_c(int a, int b)
+{
+ return av_clipl_int32((int64_t)a + b);
+}
+
+/**
+ * Add a doubled value to another value with saturation at both stages.
+ *
+ * @param a first value
+ * @param b value doubled and added to a
+ * @return sum with signed saturation
+ */
+static av_always_inline int av_sat_dadd32_c(int a, int b)
+{
+ return av_sat_add32(a, av_sat_add32(b, b));
+}
+
+/**
+ * Clip a float value into the amin-amax range.
+ * @param a value to clip
+ * @param amin minimum value of the clip range
+ * @param amax maximum value of the clip range
+ * @return clipped value
+ */
+static av_always_inline av_const float av_clipf_c(float a, float amin, float amax)
+{
+#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
+ if (amin > amax) abort();
+#endif
+ if (a < amin) return amin;
+ else if (a > amax) return amax;
+ else return a;
+}
+
+/** Compute ceil(log2(x)).
+ * @param x value used to compute ceil(log2(x))
+ * @return computed ceiling of log2(x)
+ */
+static av_always_inline av_const int av_ceil_log2_c(int x)
+{
+ return av_log2((x - 1) << 1);
+}
+
+/**
+ * Count number of bits set to one in x
+ * @param x value to count bits of
+ * @return the number of bits set to one in x
+ */
+static av_always_inline av_const int av_popcount_c(uint32_t x)
+{
+ x -= (x >> 1) & 0x55555555;
+ x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
+ x = (x + (x >> 4)) & 0x0F0F0F0F;
+ x += x >> 8;
+ return (x + (x >> 16)) & 0x3F;
+}
+
+/**
+ * Count number of bits set to one in x
+ * @param x value to count bits of
+ * @return the number of bits set to one in x
+ */
+static av_always_inline av_const int av_popcount64_c(uint64_t x)
+{
+ return av_popcount((uint32_t)x) + av_popcount(x >> 32);
+}
+
+#define MKTAG(a,b,c,d) ((a) | ((b) << 8) | ((c) << 16) | ((unsigned)(d) << 24))
+#define MKBETAG(a,b,c,d) ((d) | ((c) << 8) | ((b) << 16) | ((unsigned)(a) << 24))
+
+/**
+ * Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
+ *
+ * @param val Output value, must be an lvalue of type uint32_t.
+ * @param GET_BYTE Expression reading one byte from the input.
+ * Evaluated up to 7 times (4 for the currently
+ * assigned Unicode range). With a memory buffer
+ * input, this could be *ptr++.
+ * @param ERROR Expression to be evaluated on invalid input,
+ * typically a goto statement.
+ */
+#define GET_UTF8(val, GET_BYTE, ERROR)\
+ val= GET_BYTE;\
+ {\
+ uint32_t top = (val & 128) >> 1;\
+ if ((val & 0xc0) == 0x80)\
+ ERROR\
+ while (val & top) {\
+ int tmp= GET_BYTE - 128;\
+ if(tmp>>6)\
+ ERROR\
+ val= (val<<6) + tmp;\
+ top <<= 5;\
+ }\
+ val &= (top << 1) - 1;\
+ }
+
+/**
+ * Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form.
+ *
+ * @param val Output value, must be an lvalue of type uint32_t.
+ * @param GET_16BIT Expression returning two bytes of UTF-16 data converted
+ * to native byte order. Evaluated one or two times.
+ * @param ERROR Expression to be evaluated on invalid input,
+ * typically a goto statement.
+ */
+#define GET_UTF16(val, GET_16BIT, ERROR)\
+ val = GET_16BIT;\
+ {\
+ unsigned int hi = val - 0xD800;\
+ if (hi < 0x800) {\
+ val = GET_16BIT - 0xDC00;\
+ if (val > 0x3FFU || hi > 0x3FFU)\
+ ERROR\
+ val += (hi<<10) + 0x10000;\
+ }\
+ }\
+
+/**
+ * @def PUT_UTF8(val, tmp, PUT_BYTE)
+ * Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).
+ * @param val is an input-only argument and should be of type uint32_t. It holds
+ * a UCS-4 encoded Unicode character that is to be converted to UTF-8. If
+ * val is given as a function it is executed only once.
+ * @param tmp is a temporary variable and should be of type uint8_t. It
+ * represents an intermediate value during conversion that is to be
+ * output by PUT_BYTE.
+ * @param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
+ * It could be a function or a statement, and uses tmp as the input byte.
+ * For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be
+ * executed up to 4 times for values in the valid UTF-8 range and up to
+ * 7 times in the general case, depending on the length of the converted
+ * Unicode character.
+ */
+#define PUT_UTF8(val, tmp, PUT_BYTE)\
+ {\
+ int bytes, shift;\
+ uint32_t in = val;\
+ if (in < 0x80) {\
+ tmp = in;\
+ PUT_BYTE\
+ } else {\
+ bytes = (av_log2(in) + 4) / 5;\
+ shift = (bytes - 1) * 6;\
+ tmp = (256 - (256 >> bytes)) | (in >> shift);\
+ PUT_BYTE\
+ while (shift >= 6) {\
+ shift -= 6;\
+ tmp = 0x80 | ((in >> shift) & 0x3f);\
+ PUT_BYTE\
+ }\
+ }\
+ }
+
+/**
+ * @def PUT_UTF16(val, tmp, PUT_16BIT)
+ * Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).
+ * @param val is an input-only argument and should be of type uint32_t. It holds
+ * a UCS-4 encoded Unicode character that is to be converted to UTF-16. If
+ * val is given as a function it is executed only once.
+ * @param tmp is a temporary variable and should be of type uint16_t. It
+ * represents an intermediate value during conversion that is to be
+ * output by PUT_16BIT.
+ * @param PUT_16BIT writes the converted UTF-16 data to any proper destination
+ * in desired endianness. It could be a function or a statement, and uses tmp
+ * as the input byte. For example, PUT_BYTE could be "*output++ = tmp;"
+ * PUT_BYTE will be executed 1 or 2 times depending on input character.
+ */
+#define PUT_UTF16(val, tmp, PUT_16BIT)\
+ {\
+ uint32_t in = val;\
+ if (in < 0x10000) {\
+ tmp = in;\
+ PUT_16BIT\
+ } else {\
+ tmp = 0xD800 | ((in - 0x10000) >> 10);\
+ PUT_16BIT\
+ tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
+ PUT_16BIT\
+ }\
+ }\
+
+
+
+#include "mem.h"
+
+#ifdef HAVE_AV_CONFIG_H
+# include "internal.h"
+#endif /* HAVE_AV_CONFIG_H */
+
+#endif /* AVUTIL_COMMON_H */
+
+/*
+ * The following definitions are outside the multiple inclusion guard
+ * to ensure they are immediately available in intmath.h.
+ */
+
+#ifndef av_ceil_log2
+# define av_ceil_log2 av_ceil_log2_c
+#endif
+#ifndef av_clip
+# define av_clip av_clip_c
+#endif
+#ifndef av_clip64
+# define av_clip64 av_clip64_c
+#endif
+#ifndef av_clip_uint8
+# define av_clip_uint8 av_clip_uint8_c
+#endif
+#ifndef av_clip_int8
+# define av_clip_int8 av_clip_int8_c
+#endif
+#ifndef av_clip_uint16
+# define av_clip_uint16 av_clip_uint16_c
+#endif
+#ifndef av_clip_int16
+# define av_clip_int16 av_clip_int16_c
+#endif
+#ifndef av_clipl_int32
+# define av_clipl_int32 av_clipl_int32_c
+#endif
+#ifndef av_clip_uintp2
+# define av_clip_uintp2 av_clip_uintp2_c
+#endif
+#ifndef av_sat_add32
+# define av_sat_add32 av_sat_add32_c
+#endif
+#ifndef av_sat_dadd32
+# define av_sat_dadd32 av_sat_dadd32_c
+#endif
+#ifndef av_clipf
+# define av_clipf av_clipf_c
+#endif
+#ifndef av_popcount
+# define av_popcount av_popcount_c
+#endif
+#ifndef av_popcount64
+# define av_popcount64 av_popcount64_c
+#endif
diff --git a/thirdparties/mac/include/libavutil/cpu.h b/thirdparties/mac/include/libavutil/cpu.h
new file mode 100644
index 0000000..c8f34e0
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/cpu.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CPU_H
+#define AVUTIL_CPU_H
+
+#include "attributes.h"
+
+#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */
+
+ /* lower 16 bits - CPU features */
+#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX
+#define AV_CPU_FLAG_MMXEXT 0x0002 ///< SSE integer functions or AMD MMX ext
+#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext
+#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW
+#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions
+#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions
+#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
+#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt
+#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions
+#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
+#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions
+#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower
+#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions
+#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions
+#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
+#define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions
+#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions
+// #if LIBAVUTIL_VERSION_MAJOR <52
+#define AV_CPU_FLAG_CMOV 0x1001000 ///< supports cmov instruction
+// #else
+// #define AV_CPU_FLAG_CMOV 0x1000 ///< supports cmov instruction
+// #endif
+
+#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
+
+#define AV_CPU_FLAG_ARMV5TE (1 << 0)
+#define AV_CPU_FLAG_ARMV6 (1 << 1)
+#define AV_CPU_FLAG_ARMV6T2 (1 << 2)
+#define AV_CPU_FLAG_VFP (1 << 3)
+#define AV_CPU_FLAG_VFPV3 (1 << 4)
+#define AV_CPU_FLAG_NEON (1 << 5)
+
+/**
+ * Return the flags which specify extensions supported by the CPU.
+ * The returned value is affected by av_force_cpu_flags() if that was used
+ * before. So av_get_cpu_flags() can easily be used in a application to
+ * detect the enabled cpu flags.
+ */
+int av_get_cpu_flags(void);
+
+/**
+ * Disables cpu detection and forces the specified flags.
+ * -1 is a special case that disables forcing of specific flags.
+ */
+void av_force_cpu_flags(int flags);
+
+/**
+ * Set a mask on flags returned by av_get_cpu_flags().
+ * This function is mainly useful for testing.
+ * Please use av_force_cpu_flags() and av_get_cpu_flags() instead which are more flexible
+ *
+ * @warning this function is not thread safe.
+ */
+attribute_deprecated void av_set_cpu_flags_mask(int mask);
+
+/**
+ * Parse CPU flags from a string.
+ *
+ * The returned flags contain the specified flags as well as related unspecified flags.
+ *
+ * This function exists only for compatibility with libav.
+ * Please use av_parse_cpu_caps() when possible.
+ * @return a combination of AV_CPU_* flags, negative on error.
+ */
+attribute_deprecated
+int av_parse_cpu_flags(const char *s);
+
+/**
+ * Parse CPU caps from a string and update the given AV_CPU_* flags based on that.
+ *
+ * @return negative on error.
+ */
+int av_parse_cpu_caps(unsigned *flags, const char *s);
+
+/* The following CPU-specific functions shall not be called directly. */
+int ff_get_cpu_flags_arm(void);
+int ff_get_cpu_flags_ppc(void);
+int ff_get_cpu_flags_x86(void);
+
+#endif /* AVUTIL_CPU_H */
diff --git a/thirdparties/mac/include/libavutil/crc.h b/thirdparties/mac/include/libavutil/crc.h
new file mode 100644
index 0000000..2bdfca8
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/crc.h
@@ -0,0 +1,74 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_CRC_H
+#define AVUTIL_CRC_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include "attributes.h"
+
+typedef uint32_t AVCRC;
+
+typedef enum {
+ AV_CRC_8_ATM,
+ AV_CRC_16_ANSI,
+ AV_CRC_16_CCITT,
+ AV_CRC_32_IEEE,
+ AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */
+ AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */
+}AVCRCId;
+
+/**
+ * Initialize a CRC table.
+ * @param ctx must be an array of size sizeof(AVCRC)*257 or sizeof(AVCRC)*1024
+ * @param le If 1, the lowest bit represents the coefficient for the highest
+ * exponent of the corresponding polynomial (both for poly and
+ * actual CRC).
+ * If 0, you must swap the CRC parameter and the result of av_crc
+ * if you need the standard representation (can be simplified in
+ * most cases to e.g. bswap16):
+ * av_bswap32(crc << (32-bits))
+ * @param bits number of bits for the CRC
+ * @param poly generator polynomial without the x**bits coefficient, in the
+ * representation as specified by le
+ * @param ctx_size size of ctx in bytes
+ * @return <0 on failure
+ */
+int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
+
+/**
+ * Get an initialized standard CRC table.
+ * @param crc_id ID of a standard CRC
+ * @return a pointer to the CRC table or NULL on failure
+ */
+const AVCRC *av_crc_get_table(AVCRCId crc_id);
+
+/**
+ * Calculate the CRC of a block.
+ * @param crc CRC of previous blocks if any or initial value for CRC
+ * @return CRC updated with the data from the given block
+ *
+ * @see av_crc_init() "le" parameter
+ */
+uint32_t av_crc(const AVCRC *ctx, uint32_t crc,
+ const uint8_t *buffer, size_t length) av_pure;
+
+#endif /* AVUTIL_CRC_H */
diff --git a/thirdparties/mac/include/libavutil/dict.h b/thirdparties/mac/include/libavutil/dict.h
new file mode 100644
index 0000000..38f03a4
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/dict.h
@@ -0,0 +1,152 @@
+/*
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * Public dictionary API.
+ * @deprecated
+ * AVDictionary is provided for compatibility with libav. It is both in
+ * implementation as well as API inefficient. It does not scale and is
+ * extremely slow with large dictionaries.
+ * It is recommended that new code uses our tree container from tree.c/h
+ * where applicable, which uses AVL trees to achieve O(log n) performance.
+ */
+
+#ifndef AVUTIL_DICT_H
+#define AVUTIL_DICT_H
+
+/**
+ * @addtogroup lavu_dict AVDictionary
+ * @ingroup lavu_data
+ *
+ * @brief Simple key:value store
+ *
+ * @{
+ * Dictionaries are used for storing key:value pairs. To create
+ * an AVDictionary, simply pass an address of a NULL pointer to
+ * av_dict_set(). NULL can be used as an empty dictionary wherever
+ * a pointer to an AVDictionary is required.
+ * Use av_dict_get() to retrieve an entry or iterate over all
+ * entries and finally av_dict_free() to free the dictionary
+ * and all its contents.
+ *
+ * @code
+ * AVDictionary *d = NULL; // "create" an empty dictionary
+ * av_dict_set(&d, "foo", "bar", 0); // add an entry
+ *
+ * char *k = av_strdup("key"); // if your strings are already allocated,
+ * char *v = av_strdup("value"); // you can avoid copying them like this
+ * av_dict_set(&d, k, v, AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
+ *
+ * AVDictionaryEntry *t = NULL;
+ * while (t = av_dict_get(d, "", t, AV_DICT_IGNORE_SUFFIX)) {
+ * <....> // iterate over all entries in d
+ * }
+ *
+ * av_dict_free(&d);
+ * @endcode
+ *
+ */
+
+#define AV_DICT_MATCH_CASE 1
+#define AV_DICT_IGNORE_SUFFIX 2
+#define AV_DICT_DONT_STRDUP_KEY 4 /**< Take ownership of a key that's been
+ allocated with av_malloc() and children. */
+#define AV_DICT_DONT_STRDUP_VAL 8 /**< Take ownership of a value that's been
+ allocated with av_malloc() and chilren. */
+#define AV_DICT_DONT_OVERWRITE 16 ///< Don't overwrite existing entries.
+#define AV_DICT_APPEND 32 /**< If the entry already exists, append to it. Note that no
+ delimiter is added, the strings are simply concatenated. */
+
+typedef struct AVDictionaryEntry {
+ char *key;
+ char *value;
+} AVDictionaryEntry;
+
+typedef struct AVDictionary AVDictionary;
+
+/**
+ * Get a dictionary entry with matching key.
+ *
+ * @param prev Set to the previous matching element to find the next.
+ * If set to NULL the first matching element is returned.
+ * @param flags Allows case as well as suffix-insensitive comparisons.
+ * @return Found entry or NULL, changing key or value leads to undefined behavior.
+ */
+AVDictionaryEntry *
+av_dict_get(AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags);
+
+/**
+ * Get number of entries in dictionary.
+ *
+ * @param m dictionary
+ * @return number of entries in dictionary
+ */
+int av_dict_count(const AVDictionary *m);
+
+/**
+ * Set the given entry in *pm, overwriting an existing entry.
+ *
+ * @param pm pointer to a pointer to a dictionary struct. If *pm is NULL
+ * a dictionary struct is allocated and put in *pm.
+ * @param key entry key to add to *pm (will be av_strduped depending on flags)
+ * @param value entry value to add to *pm (will be av_strduped depending on flags).
+ * Passing a NULL value will cause an existing entry to be deleted.
+ * @return >= 0 on success otherwise an error code <0
+ */
+int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags);
+
+/**
+ * Parse the key/value pairs list and add to a dictionary.
+ *
+ * @param key_val_sep a 0-terminated list of characters used to separate
+ * key from value
+ * @param pairs_sep a 0-terminated list of characters used to separate
+ * two pairs from each other
+ * @param flags flags to use when adding to dictionary.
+ * AV_DICT_DONT_STRDUP_KEY and AV_DICT_DONT_STRDUP_VAL
+ * are ignored since the key/value tokens will always
+ * be duplicated.
+ * @return 0 on success, negative AVERROR code on failure
+ */
+int av_dict_parse_string(AVDictionary **pm, const char *str,
+ const char *key_val_sep, const char *pairs_sep,
+ int flags);
+
+/**
+ * Copy entries from one AVDictionary struct into another.
+ * @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL,
+ * this function will allocate a struct for you and put it in *dst
+ * @param src pointer to source AVDictionary struct
+ * @param flags flags to use when setting entries in *dst
+ * @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag
+ */
+void av_dict_copy(AVDictionary **dst, AVDictionary *src, int flags);
+
+/**
+ * Free all the memory allocated for an AVDictionary struct
+ * and all keys and values.
+ */
+void av_dict_free(AVDictionary **m);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_DICT_H */
diff --git a/thirdparties/mac/include/libavutil/error.h b/thirdparties/mac/include/libavutil/error.h
new file mode 100644
index 0000000..f3fd7bb
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/error.h
@@ -0,0 +1,117 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * error code definitions
+ */
+
+#ifndef AVUTIL_ERROR_H
+#define AVUTIL_ERROR_H
+
+#include <errno.h>
+#include <stddef.h>
+
+/**
+ * @addtogroup lavu_error
+ *
+ * @{
+ */
+
+
+/* error handling */
+#if EDOM > 0
+#define AVERROR(e) (-(e)) ///< Returns a negative error code from a POSIX error code, to return from library functions.
+#define AVUNERROR(e) (-(e)) ///< Returns a POSIX error code from a library function error return value.
+#else
+/* Some platforms have E* and errno already negated. */
+#define AVERROR(e) (e)
+#define AVUNERROR(e) (e)
+#endif
+
+#define FFERRTAG(a, b, c, d) (-(int)MKTAG(a, b, c, d))
+
+#define AVERROR_BSF_NOT_FOUND FFERRTAG(0xF8,'B','S','F') ///< Bitstream filter not found
+#define AVERROR_BUG FFERRTAG( 'B','U','G','!') ///< Internal bug, also see AVERROR_BUG2
+#define AVERROR_BUFFER_TOO_SMALL FFERRTAG( 'B','U','F','S') ///< Buffer too small
+#define AVERROR_DECODER_NOT_FOUND FFERRTAG(0xF8,'D','E','C') ///< Decoder not found
+#define AVERROR_DEMUXER_NOT_FOUND FFERRTAG(0xF8,'D','E','M') ///< Demuxer not found
+#define AVERROR_ENCODER_NOT_FOUND FFERRTAG(0xF8,'E','N','C') ///< Encoder not found
+#define AVERROR_EOF FFERRTAG( 'E','O','F',' ') ///< End of file
+#define AVERROR_EXIT FFERRTAG( 'E','X','I','T') ///< Immediate exit was requested; the called function should not be restarted
+#define AVERROR_EXTERNAL FFERRTAG( 'E','X','T',' ') ///< Generic error in an external library
+#define AVERROR_FILTER_NOT_FOUND FFERRTAG(0xF8,'F','I','L') ///< Filter not found
+#define AVERROR_INVALIDDATA FFERRTAG( 'I','N','D','A') ///< Invalid data found when processing input
+#define AVERROR_MUXER_NOT_FOUND FFERRTAG(0xF8,'M','U','X') ///< Muxer not found
+#define AVERROR_OPTION_NOT_FOUND FFERRTAG(0xF8,'O','P','T') ///< Option not found
+#define AVERROR_PATCHWELCOME FFERRTAG( 'P','A','W','E') ///< Not yet implemented in FFmpeg, patches welcome
+#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O') ///< Protocol not found
+
+#define AVERROR_STREAM_NOT_FOUND FFERRTAG(0xF8,'S','T','R') ///< Stream not found
+/**
+ * This is semantically identical to AVERROR_BUG
+ * it has been introduced in Libav after our AVERROR_BUG and with a modified value.
+ */
+#define AVERROR_BUG2 FFERRTAG( 'B','U','G',' ')
+#define AVERROR_UNKNOWN FFERRTAG( 'U','N','K','N') ///< Unknown error, typically from an external library
+#define AVERROR_EXPERIMENTAL (-0x2bb2afa8) ///< Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
+
+#define AV_ERROR_MAX_STRING_SIZE 64
+
+/**
+ * Put a description of the AVERROR code errnum in errbuf.
+ * In case of failure the global variable errno is set to indicate the
+ * error. Even in case of failure av_strerror() will print a generic
+ * error message indicating the errnum provided to errbuf.
+ *
+ * @param errnum error code to describe
+ * @param errbuf buffer to which description is written
+ * @param errbuf_size the size in bytes of errbuf
+ * @return 0 on success, a negative value if a description for errnum
+ * cannot be found
+ */
+int av_strerror(int errnum, char *errbuf, size_t errbuf_size);
+
+/**
+ * Fill the provided buffer with a string containing an error string
+ * corresponding to the AVERROR code errnum.
+ *
+ * @param errbuf a buffer
+ * @param errbuf_size size in bytes of errbuf
+ * @param errnum error code to describe
+ * @return the buffer in input, filled with the error description
+ * @see av_strerror()
+ */
+static inline char *av_make_error_string(char *errbuf, size_t errbuf_size, int errnum)
+{
+ av_strerror(errnum, errbuf, errbuf_size);
+ return errbuf;
+}
+
+/**
+ * Convenience macro, the return value should be used only directly in
+ * function arguments but never stand-alone.
+ */
+#define av_err2str(errnum) \
+ av_make_error_string((char[AV_ERROR_MAX_STRING_SIZE]){0}, AV_ERROR_MAX_STRING_SIZE, errnum)
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_ERROR_H */
diff --git a/thirdparties/mac/include/libavutil/eval.h b/thirdparties/mac/include/libavutil/eval.h
new file mode 100644
index 0000000..a1d1fe3
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/eval.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * simple arithmetic expression evaluator
+ */
+
+#ifndef AVUTIL_EVAL_H
+#define AVUTIL_EVAL_H
+
+#include "avutil.h"
+
+typedef struct AVExpr AVExpr;
+
+/**
+ * Parse and evaluate an expression.
+ * Note, this is significantly slower than av_expr_eval().
+ *
+ * @param res a pointer to a double where is put the result value of
+ * the expression, or NAN in case of error
+ * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
+ * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
+ * @param const_values a zero terminated array of values for the identifiers from const_names
+ * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
+ * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
+ * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
+ * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
+ * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
+ * @param log_ctx parent logging context
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_expr_parse_and_eval(double *res, const char *s,
+ const char * const *const_names, const double *const_values,
+ const char * const *func1_names, double (* const *funcs1)(void *, double),
+ const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+ void *opaque, int log_offset, void *log_ctx);
+
+/**
+ * Parse an expression.
+ *
+ * @param expr a pointer where is put an AVExpr containing the parsed
+ * value in case of successful parsing, or NULL otherwise.
+ * The pointed to AVExpr must be freed with av_expr_free() by the user
+ * when it is not needed anymore.
+ * @param s expression as a zero terminated string, for example "1+2^3+5*5+sin(2/3)"
+ * @param const_names NULL terminated array of zero terminated strings of constant identifiers, for example {"PI", "E", 0}
+ * @param func1_names NULL terminated array of zero terminated strings of funcs1 identifiers
+ * @param funcs1 NULL terminated array of function pointers for functions which take 1 argument
+ * @param func2_names NULL terminated array of zero terminated strings of funcs2 identifiers
+ * @param funcs2 NULL terminated array of function pointers for functions which take 2 arguments
+ * @param log_ctx parent logging context
+ * @return 0 in case of success, a negative value corresponding to an
+ * AVERROR code otherwise
+ */
+int av_expr_parse(AVExpr **expr, const char *s,
+ const char * const *const_names,
+ const char * const *func1_names, double (* const *funcs1)(void *, double),
+ const char * const *func2_names, double (* const *funcs2)(void *, double, double),
+ int log_offset, void *log_ctx);
+
+/**
+ * Evaluate a previously parsed expression.
+ *
+ * @param const_values a zero terminated array of values for the identifiers from av_expr_parse() const_names
+ * @param opaque a pointer which will be passed to all functions from funcs1 and funcs2
+ * @return the value of the expression
+ */
+double av_expr_eval(AVExpr *e, const double *const_values, void *opaque);
+
+/**
+ * Free a parsed expression previously created with av_expr_parse().
+ */
+void av_expr_free(AVExpr *e);
+
+/**
+ * Parse the string in numstr and return its value as a double. If
+ * the string is empty, contains only whitespaces, or does not contain
+ * an initial substring that has the expected syntax for a
+ * floating-point number, no conversion is performed. In this case,
+ * returns a value of zero and the value returned in tail is the value
+ * of numstr.
+ *
+ * @param numstr a string representing a number, may contain one of
+ * the International System number postfixes, for example 'K', 'M',
+ * 'G'. If 'i' is appended after the postfix, powers of 2 are used
+ * instead of powers of 10. The 'B' postfix multiplies the value for
+ * 8, and can be appended after another postfix or used alone. This
+ * allows using for example 'KB', 'MiB', 'G' and 'B' as postfix.
+ * @param tail if non-NULL puts here the pointer to the char next
+ * after the last parsed character
+ */
+double av_strtod(const char *numstr, char **tail);
+
+#endif /* AVUTIL_EVAL_H */
diff --git a/thirdparties/mac/include/libavutil/fifo.h b/thirdparties/mac/include/libavutil/fifo.h
new file mode 100644
index 0000000..849b9a6
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/fifo.h
@@ -0,0 +1,144 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * a very simple circular buffer FIFO implementation
+ */
+
+#ifndef AVUTIL_FIFO_H
+#define AVUTIL_FIFO_H
+
+#include <stdint.h>
+#include "avutil.h"
+#include "attributes.h"
+
+typedef struct AVFifoBuffer {
+ uint8_t *buffer;
+ uint8_t *rptr, *wptr, *end;
+ uint32_t rndx, wndx;
+} AVFifoBuffer;
+
+/**
+ * Initialize an AVFifoBuffer.
+ * @param size of FIFO
+ * @return AVFifoBuffer or NULL in case of memory allocation failure
+ */
+AVFifoBuffer *av_fifo_alloc(unsigned int size);
+
+/**
+ * Free an AVFifoBuffer.
+ * @param f AVFifoBuffer to free
+ */
+void av_fifo_free(AVFifoBuffer *f);
+
+/**
+ * Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied.
+ * @param f AVFifoBuffer to reset
+ */
+void av_fifo_reset(AVFifoBuffer *f);
+
+/**
+ * Return the amount of data in bytes in the AVFifoBuffer, that is the
+ * amount of data you can read from it.
+ * @param f AVFifoBuffer to read from
+ * @return size
+ */
+int av_fifo_size(AVFifoBuffer *f);
+
+/**
+ * Return the amount of space in bytes in the AVFifoBuffer, that is the
+ * amount of data you can write into it.
+ * @param f AVFifoBuffer to write into
+ * @return size
+ */
+int av_fifo_space(AVFifoBuffer *f);
+
+/**
+ * Feed data from an AVFifoBuffer to a user-supplied callback.
+ * @param f AVFifoBuffer to read from
+ * @param buf_size number of bytes to read
+ * @param func generic read function
+ * @param dest data destination
+ */
+int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
+
+/**
+ * Feed data from a user-supplied callback to an AVFifoBuffer.
+ * @param f AVFifoBuffer to write to
+ * @param src data source; non-const since it may be used as a
+ * modifiable context by the function defined in func
+ * @param size number of bytes to write
+ * @param func generic write function; the first parameter is src,
+ * the second is dest_buf, the third is dest_buf_size.
+ * func must return the number of bytes written to dest_buf, or <= 0 to
+ * indicate no more data available to write.
+ * If func is NULL, src is interpreted as a simple byte array for source data.
+ * @return the number of bytes written to the FIFO
+ */
+int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int));
+
+/**
+ * Resize an AVFifoBuffer.
+ * In case of reallocation failure, the old FIFO is kept unchanged.
+ *
+ * @param f AVFifoBuffer to resize
+ * @param size new AVFifoBuffer size in bytes
+ * @return <0 for failure, >=0 otherwise
+ */
+int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size);
+
+/**
+ * Enlarge an AVFifoBuffer.
+ * In case of reallocation failure, the old FIFO is kept unchanged.
+ * The new fifo size may be larger than the requested size.
+ *
+ * @param f AVFifoBuffer to resize
+ * @param additional_space the amount of space in bytes to allocate in addition to av_fifo_size()
+ * @return <0 for failure, >=0 otherwise
+ */
+int av_fifo_grow(AVFifoBuffer *f, unsigned int additional_space);
+
+/**
+ * Read and discard the specified amount of data from an AVFifoBuffer.
+ * @param f AVFifoBuffer to read from
+ * @param size amount of data to read in bytes
+ */
+void av_fifo_drain(AVFifoBuffer *f, int size);
+
+/**
+ * Return a pointer to the data stored in a FIFO buffer at a certain offset.
+ * The FIFO buffer is not modified.
+ *
+ * @param f AVFifoBuffer to peek at, f must be non-NULL
+ * @param offs an offset in bytes, its absolute value must be less
+ * than the used buffer size or the returned pointer will
+ * point outside to the buffer data.
+ * The used buffer size can be checked with av_fifo_size().
+ */
+static inline uint8_t *av_fifo_peek2(const AVFifoBuffer *f, int offs)
+{
+ uint8_t *ptr = f->rptr + offs;
+ if (ptr >= f->end)
+ ptr = f->buffer + (ptr - f->end);
+ else if (ptr < f->buffer)
+ ptr = f->end - (f->buffer - ptr);
+ return ptr;
+}
+
+#endif /* AVUTIL_FIFO_H */
diff --git a/thirdparties/mac/include/libavutil/file.h b/thirdparties/mac/include/libavutil/file.h
new file mode 100644
index 0000000..b47ef80
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/file.h
@@ -0,0 +1,66 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_FILE_H
+#define AVUTIL_FILE_H
+
+#include <stdint.h>
+
+#include "avutil.h"
+
+/**
+ * @file
+ * Misc file utilities.
+ */
+
+/**
+ * Read the file with name filename, and put its content in a newly
+ * allocated buffer or map it with mmap() when available.
+ * In case of success set *bufptr to the read or mmapped buffer, and
+ * *size to the size in bytes of the buffer in *bufptr.
+ * The returned buffer must be released with av_file_unmap().
+ *
+ * @param log_offset loglevel offset used for logging
+ * @param log_ctx context used for logging
+ * @return a non negative number in case of success, a negative value
+ * corresponding to an AVERROR error code in case of failure
+ */
+int av_file_map(const char *filename, uint8_t **bufptr, size_t *size,
+ int log_offset, void *log_ctx);
+
+/**
+ * Unmap or free the buffer bufptr created by av_file_map().
+ *
+ * @param size size in bytes of bufptr, must be the same as returned
+ * by av_file_map()
+ */
+void av_file_unmap(uint8_t *bufptr, size_t size);
+
+/**
+ * Wrapper to work around the lack of mkstemp() on mingw.
+ * Also, tries to create file in /tmp first, if possible.
+ * *prefix can be a character constant; *filename will be allocated internally.
+ * @return file descriptor of opened file (or -1 on error)
+ * and opened file name in **filename.
+ * @note On very old libcs it is necessary to set a secure umask before
+ * calling this, av_tempfile() cant call umask itself as it is used in
+ * libraries and could interfere with the calling application.
+ */
+int av_tempfile(const char *prefix, char **filename, int log_offset, void *log_ctx);
+
+#endif /* AVUTIL_FILE_H */
diff --git a/thirdparties/mac/include/libavutil/hmac.h b/thirdparties/mac/include/libavutil/hmac.h
new file mode 100644
index 0000000..aef84c6
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/hmac.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2012 Martin Storsjo
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_HMAC_H
+#define AVUTIL_HMAC_H
+
+#include <stdint.h>
+
+/**
+ * @defgroup lavu_hmac HMAC
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+enum AVHMACType {
+ AV_HMAC_MD5,
+ AV_HMAC_SHA1,
+};
+
+typedef struct AVHMAC AVHMAC;
+
+/**
+ * Allocate an AVHMAC context.
+ * @param type The hash function used for the HMAC.
+ */
+AVHMAC *av_hmac_alloc(enum AVHMACType type);
+
+/**
+ * Free an AVHMAC context.
+ * @param ctx The context to free, may be NULL
+ */
+void av_hmac_free(AVHMAC *ctx);
+
+/**
+ * Initialize an AVHMAC context with an authentication key.
+ * @param ctx The HMAC context
+ * @param key The authentication key
+ * @param keylen The length of the key, in bytes
+ */
+void av_hmac_init(AVHMAC *ctx, const uint8_t *key, unsigned int keylen);
+
+/**
+ * Hash data with the HMAC.
+ * @param ctx The HMAC context
+ * @param data The data to hash
+ * @param len The length of the data, in bytes
+ */
+void av_hmac_update(AVHMAC *ctx, const uint8_t *data, unsigned int len);
+
+/**
+ * Finish hashing and output the HMAC digest.
+ * @param ctx The HMAC context
+ * @param out The output buffer to write the digest into
+ * @param outlen The length of the out buffer, in bytes
+ * @return The number of bytes written to out, or a negative error code.
+ */
+int av_hmac_final(AVHMAC *ctx, uint8_t *out, unsigned int outlen);
+
+/**
+ * Hash an array of data with a key.
+ * @param ctx The HMAC context
+ * @param data The data to hash
+ * @param len The length of the data, in bytes
+ * @param key The authentication key
+ * @param keylen The length of the key, in bytes
+ * @param out The output buffer to write the digest into
+ * @param outlen The length of the out buffer, in bytes
+ * @return The number of bytes written to out, or a negative error code.
+ */
+int av_hmac_calc(AVHMAC *ctx, const uint8_t *data, unsigned int len,
+ const uint8_t *key, unsigned int keylen,
+ uint8_t *out, unsigned int outlen);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_HMAC_H */
diff --git a/thirdparties/mac/include/libavutil/imgutils.h b/thirdparties/mac/include/libavutil/imgutils.h
new file mode 100644
index 0000000..ab32d66
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/imgutils.h
@@ -0,0 +1,200 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_IMGUTILS_H
+#define AVUTIL_IMGUTILS_H
+
+/**
+ * @file
+ * misc image utilities
+ *
+ * @addtogroup lavu_picture
+ * @{
+ */
+
+#include "avutil.h"
+#include "pixdesc.h"
+
+/**
+ * Compute the max pixel step for each plane of an image with a
+ * format described by pixdesc.
+ *
+ * The pixel step is the distance in bytes between the first byte of
+ * the group of bytes which describe a pixel component and the first
+ * byte of the successive group in the same plane for the same
+ * component.
+ *
+ * @param max_pixsteps an array which is filled with the max pixel step
+ * for each plane. Since a plane may contain different pixel
+ * components, the computed max_pixsteps[plane] is relative to the
+ * component in the plane with the max pixel step.
+ * @param max_pixstep_comps an array which is filled with the component
+ * for each plane which has the max pixel step. May be NULL.
+ */
+void av_image_fill_max_pixsteps(int max_pixsteps[4], int max_pixstep_comps[4],
+ const AVPixFmtDescriptor *pixdesc);
+
+/**
+ * Compute the size of an image line with format pix_fmt and width
+ * width for the plane plane.
+ *
+ * @return the computed size in bytes
+ */
+int av_image_get_linesize(enum AVPixelFormat pix_fmt, int width, int plane);
+
+/**
+ * Fill plane linesizes for an image with pixel format pix_fmt and
+ * width width.
+ *
+ * @param linesizes array to be filled with the linesize for each plane
+ * @return >= 0 in case of success, a negative error code otherwise
+ */
+int av_image_fill_linesizes(int linesizes[4], enum AVPixelFormat pix_fmt, int width);
+
+/**
+ * Fill plane data pointers for an image with pixel format pix_fmt and
+ * height height.
+ *
+ * @param data pointers array to be filled with the pointer for each image plane
+ * @param ptr the pointer to a buffer which will contain the image
+ * @param linesizes the array containing the linesize for each
+ * plane, should be filled by av_image_fill_linesizes()
+ * @return the size in bytes required for the image buffer, a negative
+ * error code in case of failure
+ */
+int av_image_fill_pointers(uint8_t *data[4], enum AVPixelFormat pix_fmt, int height,
+ uint8_t *ptr, const int linesizes[4]);
+
+/**
+ * Allocate an image with size w and h and pixel format pix_fmt, and
+ * fill pointers and linesizes accordingly.
+ * The allocated image buffer has to be freed by using
+ * av_freep(&pointers[0]).
+ *
+ * @param align the value to use for buffer size alignment
+ * @return the size in bytes required for the image buffer, a negative
+ * error code in case of failure
+ */
+int av_image_alloc(uint8_t *pointers[4], int linesizes[4],
+ int w, int h, enum AVPixelFormat pix_fmt, int align);
+
+/**
+ * Copy image plane from src to dst.
+ * That is, copy "height" number of lines of "bytewidth" bytes each.
+ * The first byte of each successive line is separated by *_linesize
+ * bytes.
+ *
+ * bytewidth must be contained by both absolute values of dst_linesize
+ * and src_linesize, otherwise the function behavior is undefined.
+ *
+ * @param dst_linesize linesize for the image plane in dst
+ * @param src_linesize linesize for the image plane in src
+ */
+void av_image_copy_plane(uint8_t *dst, int dst_linesize,
+ const uint8_t *src, int src_linesize,
+ int bytewidth, int height);
+
+/**
+ * Copy image in src_data to dst_data.
+ *
+ * @param dst_linesizes linesizes for the image in dst_data
+ * @param src_linesizes linesizes for the image in src_data
+ */
+void av_image_copy(uint8_t *dst_data[4], int dst_linesizes[4],
+ const uint8_t *src_data[4], const int src_linesizes[4],
+ enum AVPixelFormat pix_fmt, int width, int height);
+
+/**
+ * Setup the data pointers and linesizes based on the specified image
+ * parameters and the provided array.
+ *
+ * The fields of the given image are filled in by using the src
+ * address which points to the image data buffer. Depending on the
+ * specified pixel format, one or multiple image data pointers and
+ * line sizes will be set. If a planar format is specified, several
+ * pointers will be set pointing to the different picture planes and
+ * the line sizes of the different planes will be stored in the
+ * lines_sizes array. Call with src == NULL to get the required
+ * size for the src buffer.
+ *
+ * To allocate the buffer and fill in the dst_data and dst_linesize in
+ * one call, use av_image_alloc().
+ *
+ * @param dst_data data pointers to be filled in
+ * @param dst_linesizes linesizes for the image in dst_data to be filled in
+ * @param src buffer which will contain or contains the actual image data, can be NULL
+ * @param pix_fmt the pixel format of the image
+ * @param width the width of the image in pixels
+ * @param height the height of the image in pixels
+ * @param align the value used in src for linesize alignment
+ * @return the size in bytes required for src, a negative error code
+ * in case of failure
+ */
+int av_image_fill_arrays(uint8_t *dst_data[4], int dst_linesize[4],
+ const uint8_t *src,
+ enum AVPixelFormat pix_fmt, int width, int height, int align);
+
+/**
+ * Return the size in bytes of the amount of data required to store an
+ * image with the given parameters.
+ *
+ * @param[in] align the assumed linesize alignment
+ */
+int av_image_get_buffer_size(enum AVPixelFormat pix_fmt, int width, int height, int align);
+
+/**
+ * Copy image data from an image into a buffer.
+ *
+ * av_image_get_buffer_size() can be used to compute the required size
+ * for the buffer to fill.
+ *
+ * @param dst a buffer into which picture data will be copied
+ * @param dst_size the size in bytes of dst
+ * @param src_data pointers containing the source image data
+ * @param src_linesizes linesizes for the image in src_data
+ * @param pix_fmt the pixel format of the source image
+ * @param width the width of the source image in pixels
+ * @param height the height of the source image in pixels
+ * @param align the assumed linesize alignment for dst
+ * @return the number of bytes written to dst, or a negative value
+ * (error code) on error
+ */
+int av_image_copy_to_buffer(uint8_t *dst, int dst_size,
+ const uint8_t * const src_data[4], const int src_linesize[4],
+ enum AVPixelFormat pix_fmt, int width, int height, int align);
+
+/**
+ * Check if the given dimension of an image is valid, meaning that all
+ * bytes of the image can be addressed with a signed int.
+ *
+ * @param w the width of the picture
+ * @param h the height of the picture
+ * @param log_offset the offset to sum to the log level for logging with log_ctx
+ * @param log_ctx the parent logging context, it may be NULL
+ * @return >= 0 if valid, a negative error code otherwise
+ */
+int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx);
+
+int avpriv_set_systematic_pal2(uint32_t pal[256], enum AVPixelFormat pix_fmt);
+
+/**
+ * @}
+ */
+
+
+#endif /* AVUTIL_IMGUTILS_H */
diff --git a/thirdparties/mac/include/libavutil/intfloat.h b/thirdparties/mac/include/libavutil/intfloat.h
new file mode 100644
index 0000000..38d26ad
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/intfloat.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2011 Mans Rullgard
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTFLOAT_H
+#define AVUTIL_INTFLOAT_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+union av_intfloat32 {
+ uint32_t i;
+ float f;
+};
+
+union av_intfloat64 {
+ uint64_t i;
+ double f;
+};
+
+/**
+ * Reinterpret a 32-bit integer as a float.
+ */
+static av_always_inline float av_int2float(uint32_t i)
+{
+ union av_intfloat32 v;
+ v.i = i;
+ return v.f;
+}
+
+/**
+ * Reinterpret a float as a 32-bit integer.
+ */
+static av_always_inline uint32_t av_float2int(float f)
+{
+ union av_intfloat32 v;
+ v.f = f;
+ return v.i;
+}
+
+/**
+ * Reinterpret a 64-bit integer as a double.
+ */
+static av_always_inline double av_int2double(uint64_t i)
+{
+ union av_intfloat64 v;
+ v.i = i;
+ return v.f;
+}
+
+/**
+ * Reinterpret a double as a 64-bit integer.
+ */
+static av_always_inline uint64_t av_double2int(double f)
+{
+ union av_intfloat64 v;
+ v.f = f;
+ return v.i;
+}
+
+#endif /* AVUTIL_INTFLOAT_H */
diff --git a/thirdparties/mac/include/libavutil/intfloat_readwrite.h b/thirdparties/mac/include/libavutil/intfloat_readwrite.h
new file mode 100644
index 0000000..9709f4d
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/intfloat_readwrite.h
@@ -0,0 +1,40 @@
+/*
+ * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTFLOAT_READWRITE_H
+#define AVUTIL_INTFLOAT_READWRITE_H
+
+#include <stdint.h>
+#include "attributes.h"
+
+/* IEEE 80 bits extended float */
+typedef struct AVExtFloat {
+ uint8_t exponent[2];
+ uint8_t mantissa[8];
+} AVExtFloat;
+
+attribute_deprecated double av_int2dbl(int64_t v) av_const;
+attribute_deprecated float av_int2flt(int32_t v) av_const;
+attribute_deprecated double av_ext2dbl(const AVExtFloat ext) av_const;
+attribute_deprecated int64_t av_dbl2int(double d) av_const;
+attribute_deprecated int32_t av_flt2int(float d) av_const;
+attribute_deprecated AVExtFloat av_dbl2ext(double d) av_const;
+
+#endif /* AVUTIL_INTFLOAT_READWRITE_H */
diff --git a/thirdparties/mac/include/libavutil/intreadwrite.h b/thirdparties/mac/include/libavutil/intreadwrite.h
new file mode 100644
index 0000000..7ee6977
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/intreadwrite.h
@@ -0,0 +1,621 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_INTREADWRITE_H
+#define AVUTIL_INTREADWRITE_H
+
+#include <stdint.h>
+#include "libavutil/avconfig.h"
+#include "attributes.h"
+#include "bswap.h"
+
+typedef union {
+ uint64_t u64;
+ uint32_t u32[2];
+ uint16_t u16[4];
+ uint8_t u8 [8];
+ double f64;
+ float f32[2];
+} av_alias av_alias64;
+
+typedef union {
+ uint32_t u32;
+ uint16_t u16[2];
+ uint8_t u8 [4];
+ float f32;
+} av_alias av_alias32;
+
+typedef union {
+ uint16_t u16;
+ uint8_t u8 [2];
+} av_alias av_alias16;
+
+/*
+ * Arch-specific headers can provide any combination of
+ * AV_[RW][BLN](16|24|32|48|64) and AV_(COPY|SWAP|ZERO)(64|128) macros.
+ * Preprocessor symbols must be defined, even if these are implemented
+ * as inline functions.
+ */
+
+#ifdef HAVE_AV_CONFIG_H
+
+#include "config.h"
+
+#if ARCH_ARM
+# include "arm/intreadwrite.h"
+#elif ARCH_AVR32
+# include "avr32/intreadwrite.h"
+#elif ARCH_MIPS
+# include "mips/intreadwrite.h"
+#elif ARCH_PPC
+# include "ppc/intreadwrite.h"
+#elif ARCH_TOMI
+# include "tomi/intreadwrite.h"
+#elif ARCH_X86
+# include "x86/intreadwrite.h"
+#endif
+
+#endif /* HAVE_AV_CONFIG_H */
+
+/*
+ * Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers.
+ */
+
+#if AV_HAVE_BIGENDIAN
+
+# if defined(AV_RN16) && !defined(AV_RB16)
+# define AV_RB16(p) AV_RN16(p)
+# elif !defined(AV_RN16) && defined(AV_RB16)
+# define AV_RN16(p) AV_RB16(p)
+# endif
+
+# if defined(AV_WN16) && !defined(AV_WB16)
+# define AV_WB16(p, v) AV_WN16(p, v)
+# elif !defined(AV_WN16) && defined(AV_WB16)
+# define AV_WN16(p, v) AV_WB16(p, v)
+# endif
+
+# if defined(AV_RN24) && !defined(AV_RB24)
+# define AV_RB24(p) AV_RN24(p)
+# elif !defined(AV_RN24) && defined(AV_RB24)
+# define AV_RN24(p) AV_RB24(p)
+# endif
+
+# if defined(AV_WN24) && !defined(AV_WB24)
+# define AV_WB24(p, v) AV_WN24(p, v)
+# elif !defined(AV_WN24) && defined(AV_WB24)
+# define AV_WN24(p, v) AV_WB24(p, v)
+# endif
+
+# if defined(AV_RN32) && !defined(AV_RB32)
+# define AV_RB32(p) AV_RN32(p)
+# elif !defined(AV_RN32) && defined(AV_RB32)
+# define AV_RN32(p) AV_RB32(p)
+# endif
+
+# if defined(AV_WN32) && !defined(AV_WB32)
+# define AV_WB32(p, v) AV_WN32(p, v)
+# elif !defined(AV_WN32) && defined(AV_WB32)
+# define AV_WN32(p, v) AV_WB32(p, v)
+# endif
+
+# if defined(AV_RN48) && !defined(AV_RB48)
+# define AV_RB48(p) AV_RN48(p)
+# elif !defined(AV_RN48) && defined(AV_RB48)
+# define AV_RN48(p) AV_RB48(p)
+# endif
+
+# if defined(AV_WN48) && !defined(AV_WB48)
+# define AV_WB48(p, v) AV_WN48(p, v)
+# elif !defined(AV_WN48) && defined(AV_WB48)
+# define AV_WN48(p, v) AV_WB48(p, v)
+# endif
+
+# if defined(AV_RN64) && !defined(AV_RB64)
+# define AV_RB64(p) AV_RN64(p)
+# elif !defined(AV_RN64) && defined(AV_RB64)
+# define AV_RN64(p) AV_RB64(p)
+# endif
+
+# if defined(AV_WN64) && !defined(AV_WB64)
+# define AV_WB64(p, v) AV_WN64(p, v)
+# elif !defined(AV_WN64) && defined(AV_WB64)
+# define AV_WN64(p, v) AV_WB64(p, v)
+# endif
+
+#else /* AV_HAVE_BIGENDIAN */
+
+# if defined(AV_RN16) && !defined(AV_RL16)
+# define AV_RL16(p) AV_RN16(p)
+# elif !defined(AV_RN16) && defined(AV_RL16)
+# define AV_RN16(p) AV_RL16(p)
+# endif
+
+# if defined(AV_WN16) && !defined(AV_WL16)
+# define AV_WL16(p, v) AV_WN16(p, v)
+# elif !defined(AV_WN16) && defined(AV_WL16)
+# define AV_WN16(p, v) AV_WL16(p, v)
+# endif
+
+# if defined(AV_RN24) && !defined(AV_RL24)
+# define AV_RL24(p) AV_RN24(p)
+# elif !defined(AV_RN24) && defined(AV_RL24)
+# define AV_RN24(p) AV_RL24(p)
+# endif
+
+# if defined(AV_WN24) && !defined(AV_WL24)
+# define AV_WL24(p, v) AV_WN24(p, v)
+# elif !defined(AV_WN24) && defined(AV_WL24)
+# define AV_WN24(p, v) AV_WL24(p, v)
+# endif
+
+# if defined(AV_RN32) && !defined(AV_RL32)
+# define AV_RL32(p) AV_RN32(p)
+# elif !defined(AV_RN32) && defined(AV_RL32)
+# define AV_RN32(p) AV_RL32(p)
+# endif
+
+# if defined(AV_WN32) && !defined(AV_WL32)
+# define AV_WL32(p, v) AV_WN32(p, v)
+# elif !defined(AV_WN32) && defined(AV_WL32)
+# define AV_WN32(p, v) AV_WL32(p, v)
+# endif
+
+# if defined(AV_RN48) && !defined(AV_RL48)
+# define AV_RL48(p) AV_RN48(p)
+# elif !defined(AV_RN48) && defined(AV_RL48)
+# define AV_RN48(p) AV_RL48(p)
+# endif
+
+# if defined(AV_WN48) && !defined(AV_WL48)
+# define AV_WL48(p, v) AV_WN48(p, v)
+# elif !defined(AV_WN48) && defined(AV_WL48)
+# define AV_WN48(p, v) AV_WL48(p, v)
+# endif
+
+# if defined(AV_RN64) && !defined(AV_RL64)
+# define AV_RL64(p) AV_RN64(p)
+# elif !defined(AV_RN64) && defined(AV_RL64)
+# define AV_RN64(p) AV_RL64(p)
+# endif
+
+# if defined(AV_WN64) && !defined(AV_WL64)
+# define AV_WL64(p, v) AV_WN64(p, v)
+# elif !defined(AV_WN64) && defined(AV_WL64)
+# define AV_WN64(p, v) AV_WL64(p, v)
+# endif
+
+#endif /* !AV_HAVE_BIGENDIAN */
+
+/*
+ * Define AV_[RW]N helper macros to simplify definitions not provided
+ * by per-arch headers.
+ */
+
+#if defined(__GNUC__) && !defined(__TI_COMPILER_VERSION__)
+
+union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias;
+union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias;
+union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias;
+
+# define AV_RN(s, p) (((const union unaligned_##s *) (p))->l)
+# define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v))
+
+#elif defined(__DECC)
+
+# define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p)))
+# define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v))
+
+#elif AV_HAVE_FAST_UNALIGNED
+
+# define AV_RN(s, p) (((const av_alias##s*)(p))->u##s)
+# define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v))
+
+#else
+
+#ifndef AV_RB16
+# define AV_RB16(x) \
+ ((((const uint8_t*)(x))[0] << 8) | \
+ ((const uint8_t*)(x))[1])
+#endif
+#ifndef AV_WB16
+# define AV_WB16(p, darg) do { \
+ unsigned d = (darg); \
+ ((uint8_t*)(p))[1] = (d); \
+ ((uint8_t*)(p))[0] = (d)>>8; \
+ } while(0)
+#endif
+
+#ifndef AV_RL16
+# define AV_RL16(x) \
+ ((((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL16
+# define AV_WL16(p, darg) do { \
+ unsigned d = (darg); \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ } while(0)
+#endif
+
+#ifndef AV_RB32
+# define AV_RB32(x) \
+ (((uint32_t)((const uint8_t*)(x))[0] << 24) | \
+ (((const uint8_t*)(x))[1] << 16) | \
+ (((const uint8_t*)(x))[2] << 8) | \
+ ((const uint8_t*)(x))[3])
+#endif
+#ifndef AV_WB32
+# define AV_WB32(p, darg) do { \
+ unsigned d = (darg); \
+ ((uint8_t*)(p))[3] = (d); \
+ ((uint8_t*)(p))[2] = (d)>>8; \
+ ((uint8_t*)(p))[1] = (d)>>16; \
+ ((uint8_t*)(p))[0] = (d)>>24; \
+ } while(0)
+#endif
+
+#ifndef AV_RL32
+# define AV_RL32(x) \
+ (((uint32_t)((const uint8_t*)(x))[3] << 24) | \
+ (((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL32
+# define AV_WL32(p, darg) do { \
+ unsigned d = (darg); \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ ((uint8_t*)(p))[3] = (d)>>24; \
+ } while(0)
+#endif
+
+#ifndef AV_RB64
+# define AV_RB64(x) \
+ (((uint64_t)((const uint8_t*)(x))[0] << 56) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 48) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[5] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[6] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[7])
+#endif
+#ifndef AV_WB64
+# define AV_WB64(p, darg) do { \
+ uint64_t d = (darg); \
+ ((uint8_t*)(p))[7] = (d); \
+ ((uint8_t*)(p))[6] = (d)>>8; \
+ ((uint8_t*)(p))[5] = (d)>>16; \
+ ((uint8_t*)(p))[4] = (d)>>24; \
+ ((uint8_t*)(p))[3] = (d)>>32; \
+ ((uint8_t*)(p))[2] = (d)>>40; \
+ ((uint8_t*)(p))[1] = (d)>>48; \
+ ((uint8_t*)(p))[0] = (d)>>56; \
+ } while(0)
+#endif
+
+#ifndef AV_RL64
+# define AV_RL64(x) \
+ (((uint64_t)((const uint8_t*)(x))[7] << 56) | \
+ ((uint64_t)((const uint8_t*)(x))[6] << 48) | \
+ ((uint64_t)((const uint8_t*)(x))[5] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL64
+# define AV_WL64(p, darg) do { \
+ uint64_t d = (darg); \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ ((uint8_t*)(p))[3] = (d)>>24; \
+ ((uint8_t*)(p))[4] = (d)>>32; \
+ ((uint8_t*)(p))[5] = (d)>>40; \
+ ((uint8_t*)(p))[6] = (d)>>48; \
+ ((uint8_t*)(p))[7] = (d)>>56; \
+ } while(0)
+#endif
+
+#if AV_HAVE_BIGENDIAN
+# define AV_RN(s, p) AV_RB##s(p)
+# define AV_WN(s, p, v) AV_WB##s(p, v)
+#else
+# define AV_RN(s, p) AV_RL##s(p)
+# define AV_WN(s, p, v) AV_WL##s(p, v)
+#endif
+
+#endif /* HAVE_FAST_UNALIGNED */
+
+#ifndef AV_RN16
+# define AV_RN16(p) AV_RN(16, p)
+#endif
+
+#ifndef AV_RN32
+# define AV_RN32(p) AV_RN(32, p)
+#endif
+
+#ifndef AV_RN64
+# define AV_RN64(p) AV_RN(64, p)
+#endif
+
+#ifndef AV_WN16
+# define AV_WN16(p, v) AV_WN(16, p, v)
+#endif
+
+#ifndef AV_WN32
+# define AV_WN32(p, v) AV_WN(32, p, v)
+#endif
+
+#ifndef AV_WN64
+# define AV_WN64(p, v) AV_WN(64, p, v)
+#endif
+
+#if AV_HAVE_BIGENDIAN
+# define AV_RB(s, p) AV_RN##s(p)
+# define AV_WB(s, p, v) AV_WN##s(p, v)
+# define AV_RL(s, p) av_bswap##s(AV_RN##s(p))
+# define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v))
+#else
+# define AV_RB(s, p) av_bswap##s(AV_RN##s(p))
+# define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v))
+# define AV_RL(s, p) AV_RN##s(p)
+# define AV_WL(s, p, v) AV_WN##s(p, v)
+#endif
+
+#define AV_RB8(x) (((const uint8_t*)(x))[0])
+#define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0)
+
+#define AV_RL8(x) AV_RB8(x)
+#define AV_WL8(p, d) AV_WB8(p, d)
+
+#ifndef AV_RB16
+# define AV_RB16(p) AV_RB(16, p)
+#endif
+#ifndef AV_WB16
+# define AV_WB16(p, v) AV_WB(16, p, v)
+#endif
+
+#ifndef AV_RL16
+# define AV_RL16(p) AV_RL(16, p)
+#endif
+#ifndef AV_WL16
+# define AV_WL16(p, v) AV_WL(16, p, v)
+#endif
+
+#ifndef AV_RB32
+# define AV_RB32(p) AV_RB(32, p)
+#endif
+#ifndef AV_WB32
+# define AV_WB32(p, v) AV_WB(32, p, v)
+#endif
+
+#ifndef AV_RL32
+# define AV_RL32(p) AV_RL(32, p)
+#endif
+#ifndef AV_WL32
+# define AV_WL32(p, v) AV_WL(32, p, v)
+#endif
+
+#ifndef AV_RB64
+# define AV_RB64(p) AV_RB(64, p)
+#endif
+#ifndef AV_WB64
+# define AV_WB64(p, v) AV_WB(64, p, v)
+#endif
+
+#ifndef AV_RL64
+# define AV_RL64(p) AV_RL(64, p)
+#endif
+#ifndef AV_WL64
+# define AV_WL64(p, v) AV_WL(64, p, v)
+#endif
+
+#ifndef AV_RB24
+# define AV_RB24(x) \
+ ((((const uint8_t*)(x))[0] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[2])
+#endif
+#ifndef AV_WB24
+# define AV_WB24(p, d) do { \
+ ((uint8_t*)(p))[2] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[0] = (d)>>16; \
+ } while(0)
+#endif
+
+#ifndef AV_RL24
+# define AV_RL24(x) \
+ ((((const uint8_t*)(x))[2] << 16) | \
+ (((const uint8_t*)(x))[1] << 8) | \
+ ((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL24
+# define AV_WL24(p, d) do { \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ } while(0)
+#endif
+
+#ifndef AV_RB48
+# define AV_RB48(x) \
+ (((uint64_t)((const uint8_t*)(x))[0] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[5])
+#endif
+#ifndef AV_WB48
+# define AV_WB48(p, darg) do { \
+ uint64_t d = (darg); \
+ ((uint8_t*)(p))[5] = (d); \
+ ((uint8_t*)(p))[4] = (d)>>8; \
+ ((uint8_t*)(p))[3] = (d)>>16; \
+ ((uint8_t*)(p))[2] = (d)>>24; \
+ ((uint8_t*)(p))[1] = (d)>>32; \
+ ((uint8_t*)(p))[0] = (d)>>40; \
+ } while(0)
+#endif
+
+#ifndef AV_RL48
+# define AV_RL48(x) \
+ (((uint64_t)((const uint8_t*)(x))[5] << 40) | \
+ ((uint64_t)((const uint8_t*)(x))[4] << 32) | \
+ ((uint64_t)((const uint8_t*)(x))[3] << 24) | \
+ ((uint64_t)((const uint8_t*)(x))[2] << 16) | \
+ ((uint64_t)((const uint8_t*)(x))[1] << 8) | \
+ (uint64_t)((const uint8_t*)(x))[0])
+#endif
+#ifndef AV_WL48
+# define AV_WL48(p, darg) do { \
+ uint64_t d = (darg); \
+ ((uint8_t*)(p))[0] = (d); \
+ ((uint8_t*)(p))[1] = (d)>>8; \
+ ((uint8_t*)(p))[2] = (d)>>16; \
+ ((uint8_t*)(p))[3] = (d)>>24; \
+ ((uint8_t*)(p))[4] = (d)>>32; \
+ ((uint8_t*)(p))[5] = (d)>>40; \
+ } while(0)
+#endif
+
+/*
+ * The AV_[RW]NA macros access naturally aligned data
+ * in a type-safe way.
+ */
+
+#define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s)
+#define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v))
+
+#ifndef AV_RN16A
+# define AV_RN16A(p) AV_RNA(16, p)
+#endif
+
+#ifndef AV_RN32A
+# define AV_RN32A(p) AV_RNA(32, p)
+#endif
+
+#ifndef AV_RN64A
+# define AV_RN64A(p) AV_RNA(64, p)
+#endif
+
+#ifndef AV_WN16A
+# define AV_WN16A(p, v) AV_WNA(16, p, v)
+#endif
+
+#ifndef AV_WN32A
+# define AV_WN32A(p, v) AV_WNA(32, p, v)
+#endif
+
+#ifndef AV_WN64A
+# define AV_WN64A(p, v) AV_WNA(64, p, v)
+#endif
+
+/*
+ * The AV_COPYxxU macros are suitable for copying data to/from unaligned
+ * memory locations.
+ */
+
+#define AV_COPYU(n, d, s) AV_WN##n(d, AV_RN##n(s));
+
+#ifndef AV_COPY16U
+# define AV_COPY16U(d, s) AV_COPYU(16, d, s)
+#endif
+
+#ifndef AV_COPY32U
+# define AV_COPY32U(d, s) AV_COPYU(32, d, s)
+#endif
+
+#ifndef AV_COPY64U
+# define AV_COPY64U(d, s) AV_COPYU(64, d, s)
+#endif
+
+#ifndef AV_COPY128U
+# define AV_COPY128U(d, s) \
+ do { \
+ AV_COPY64U(d, s); \
+ AV_COPY64U((char *)(d) + 8, (const char *)(s) + 8); \
+ } while(0)
+#endif
+
+/* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be
+ * naturally aligned. They may be implemented using MMX,
+ * so emms_c() must be called before using any float code
+ * afterwards.
+ */
+
+#define AV_COPY(n, d, s) \
+ (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n)
+
+#ifndef AV_COPY16
+# define AV_COPY16(d, s) AV_COPY(16, d, s)
+#endif
+
+#ifndef AV_COPY32
+# define AV_COPY32(d, s) AV_COPY(32, d, s)
+#endif
+
+#ifndef AV_COPY64
+# define AV_COPY64(d, s) AV_COPY(64, d, s)
+#endif
+
+#ifndef AV_COPY128
+# define AV_COPY128(d, s) \
+ do { \
+ AV_COPY64(d, s); \
+ AV_COPY64((char*)(d)+8, (char*)(s)+8); \
+ } while(0)
+#endif
+
+#define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b))
+
+#ifndef AV_SWAP64
+# define AV_SWAP64(a, b) AV_SWAP(64, a, b)
+#endif
+
+#define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0)
+
+#ifndef AV_ZERO16
+# define AV_ZERO16(d) AV_ZERO(16, d)
+#endif
+
+#ifndef AV_ZERO32
+# define AV_ZERO32(d) AV_ZERO(32, d)
+#endif
+
+#ifndef AV_ZERO64
+# define AV_ZERO64(d) AV_ZERO(64, d)
+#endif
+
+#ifndef AV_ZERO128
+# define AV_ZERO128(d) \
+ do { \
+ AV_ZERO64(d); \
+ AV_ZERO64((char*)(d)+8); \
+ } while(0)
+#endif
+
+#endif /* AVUTIL_INTREADWRITE_H */
diff --git a/thirdparties/mac/include/libavutil/lfg.h b/thirdparties/mac/include/libavutil/lfg.h
new file mode 100644
index 0000000..ec90562
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/lfg.h
@@ -0,0 +1,62 @@
+/*
+ * Lagged Fibonacci PRNG
+ * Copyright (c) 2008 Michael Niedermayer
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LFG_H
+#define AVUTIL_LFG_H
+
+typedef struct AVLFG {
+ unsigned int state[64];
+ int index;
+} AVLFG;
+
+void av_lfg_init(AVLFG *c, unsigned int seed);
+
+/**
+ * Get the next random unsigned 32-bit number using an ALFG.
+ *
+ * Please also consider a simple LCG like state= state*1664525+1013904223,
+ * it may be good enough and faster for your specific use case.
+ */
+static inline unsigned int av_lfg_get(AVLFG *c){
+ c->state[c->index & 63] = c->state[(c->index-24) & 63] + c->state[(c->index-55) & 63];
+ return c->state[c->index++ & 63];
+}
+
+/**
+ * Get the next random unsigned 32-bit number using a MLFG.
+ *
+ * Please also consider av_lfg_get() above, it is faster.
+ */
+static inline unsigned int av_mlfg_get(AVLFG *c){
+ unsigned int a= c->state[(c->index-55) & 63];
+ unsigned int b= c->state[(c->index-24) & 63];
+ return c->state[c->index++ & 63] = 2*a*b+a+b;
+}
+
+/**
+ * Get the next two numbers generated by a Box-Muller Gaussian
+ * generator using the random numbers issued by lfg.
+ *
+ * @param out array where the two generated numbers are placed
+ */
+void av_bmg_get(AVLFG *lfg, double out[2]);
+
+#endif /* AVUTIL_LFG_H */
diff --git a/thirdparties/mac/include/libavutil/log.h b/thirdparties/mac/include/libavutil/log.h
new file mode 100644
index 0000000..7ea95fa
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/log.h
@@ -0,0 +1,222 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LOG_H
+#define AVUTIL_LOG_H
+
+#include <stdarg.h>
+#include "avutil.h"
+#include "attributes.h"
+
+typedef enum {
+ AV_CLASS_CATEGORY_NA = 0,
+ AV_CLASS_CATEGORY_INPUT,
+ AV_CLASS_CATEGORY_OUTPUT,
+ AV_CLASS_CATEGORY_MUXER,
+ AV_CLASS_CATEGORY_DEMUXER,
+ AV_CLASS_CATEGORY_ENCODER,
+ AV_CLASS_CATEGORY_DECODER,
+ AV_CLASS_CATEGORY_FILTER,
+ AV_CLASS_CATEGORY_BITSTREAM_FILTER,
+ AV_CLASS_CATEGORY_SWSCALER,
+ AV_CLASS_CATEGORY_SWRESAMPLER,
+ AV_CLASS_CATEGORY_NB, ///< not part of ABI/API
+}AVClassCategory;
+
+struct AVOptionRanges;
+
+/**
+ * Describe the class of an AVClass context structure. That is an
+ * arbitrary struct of which the first field is a pointer to an
+ * AVClass struct (e.g. AVCodecContext, AVFormatContext etc.).
+ */
+typedef struct AVClass {
+ /**
+ * The name of the class; usually it is the same name as the
+ * context structure type to which the AVClass is associated.
+ */
+ const char* class_name;
+
+ /**
+ * A pointer to a function which returns the name of a context
+ * instance ctx associated with the class.
+ */
+ const char* (*item_name)(void* ctx);
+
+ /**
+ * a pointer to the first option specified in the class if any or NULL
+ *
+ * @see av_set_default_options()
+ */
+ const struct AVOption *option;
+
+ /**
+ * LIBAVUTIL_VERSION with which this structure was created.
+ * This is used to allow fields to be added without requiring major
+ * version bumps everywhere.
+ */
+
+ int version;
+
+ /**
+ * Offset in the structure where log_level_offset is stored.
+ * 0 means there is no such variable
+ */
+ int log_level_offset_offset;
+
+ /**
+ * Offset in the structure where a pointer to the parent context for
+ * logging is stored. For example a decoder could pass its AVCodecContext
+ * to eval as such a parent context, which an av_log() implementation
+ * could then leverage to display the parent context.
+ * The offset can be NULL.
+ */
+ int parent_log_context_offset;
+
+ /**
+ * Return next AVOptions-enabled child or NULL
+ */
+ void* (*child_next)(void *obj, void *prev);
+
+ /**
+ * Return an AVClass corresponding to the next potential
+ * AVOptions-enabled child.
+ *
+ * The difference between child_next and this is that
+ * child_next iterates over _already existing_ objects, while
+ * child_class_next iterates over _all possible_ children.
+ */
+ const struct AVClass* (*child_class_next)(const struct AVClass *prev);
+
+ /**
+ * Category used for visualization (like color)
+ * This is only set if the category is equal for all objects using this class.
+ * available since version (51 << 16 | 56 << 8 | 100)
+ */
+ AVClassCategory category;
+
+ /**
+ * Callback to return the category.
+ * available since version (51 << 16 | 59 << 8 | 100)
+ */
+ AVClassCategory (*get_category)(void* ctx);
+
+ /**
+ * Callback to return the supported/allowed ranges.
+ * available since version (52.12)
+ */
+ int (*query_ranges)(struct AVOptionRanges **, void *obj, const char *key, int flags);
+} AVClass;
+
+/* av_log API */
+
+#define AV_LOG_QUIET -8
+
+/**
+ * Something went really wrong and we will crash now.
+ */
+#define AV_LOG_PANIC 0
+
+/**
+ * Something went wrong and recovery is not possible.
+ * For example, no header was found for a format which depends
+ * on headers or an illegal combination of parameters is used.
+ */
+#define AV_LOG_FATAL 8
+
+/**
+ * Something went wrong and cannot losslessly be recovered.
+ * However, not all future data is affected.
+ */
+#define AV_LOG_ERROR 16
+
+/**
+ * Something somehow does not look correct. This may or may not
+ * lead to problems. An example would be the use of '-vstrict -2'.
+ */
+#define AV_LOG_WARNING 24
+
+#define AV_LOG_INFO 32
+#define AV_LOG_VERBOSE 40
+
+/**
+ * Stuff which is only useful for libav* developers.
+ */
+#define AV_LOG_DEBUG 48
+
+#define AV_LOG_MAX_OFFSET (AV_LOG_DEBUG - AV_LOG_QUIET)
+
+/**
+ * Send the specified message to the log if the level is less than or equal
+ * to the current av_log_level. By default, all logging messages are sent to
+ * stderr. This behavior can be altered by setting a different av_vlog callback
+ * function.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param fmt The format string (printf-compatible) that specifies how
+ * subsequent arguments are converted to output.
+ * @see av_vlog
+ */
+void av_log(void *avcl, int level, const char *fmt, ...) av_printf_format(3, 4);
+
+void av_vlog(void *avcl, int level, const char *fmt, va_list);
+int av_log_get_level(void);
+void av_log_set_level(int);
+void av_log_set_callback(void (*)(void*, int, const char*, va_list));
+void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl);
+const char* av_default_item_name(void* ctx);
+AVClassCategory av_default_get_category(void *ptr);
+
+/**
+ * Format a line of log the same way as the default callback.
+ * @param line buffer to receive the formated line
+ * @param line_size size of the buffer
+ * @param print_prefix used to store whether the prefix must be printed;
+ * must point to a persistent integer initially set to 1
+ */
+void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl,
+ char *line, int line_size, int *print_prefix);
+
+/**
+ * av_dlog macros
+ * Useful to print debug messages that shouldn't get compiled in normally.
+ */
+
+#ifdef DEBUG
+# define av_dlog(pctx, ...) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__)
+#else
+# define av_dlog(pctx, ...) do { if (0) av_log(pctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0)
+#endif
+
+/**
+ * Skip repeated messages, this requires the user app to use av_log() instead of
+ * (f)printf as the 2 would otherwise interfere and lead to
+ * "Last message repeated x times" messages below (f)printf messages with some
+ * bad luck.
+ * Also to receive the last, "last repeated" line if any, the user app must
+ * call av_log(NULL, AV_LOG_QUIET, "%s", ""); at the end
+ */
+#define AV_LOG_SKIP_REPEATED 1
+void av_log_set_flags(int arg);
+
+#endif /* AVUTIL_LOG_H */
diff --git a/thirdparties/mac/include/libavutil/lzo.h b/thirdparties/mac/include/libavutil/lzo.h
new file mode 100644
index 0000000..060b5c9
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/lzo.h
@@ -0,0 +1,77 @@
+/*
+ * LZO 1x decompression
+ * copyright (c) 2006 Reimar Doeffinger
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_LZO_H
+#define AVUTIL_LZO_H
+
+/**
+ * @defgroup lavu_lzo LZO
+ * @ingroup lavu_crypto
+ *
+ * @{
+ */
+
+#include <stdint.h>
+
+/** @name Error flags returned by av_lzo1x_decode
+ * @{ */
+/// end of the input buffer reached before decoding finished
+#define AV_LZO_INPUT_DEPLETED 1
+/// decoded data did not fit into output buffer
+#define AV_LZO_OUTPUT_FULL 2
+/// a reference to previously decoded data was wrong
+#define AV_LZO_INVALID_BACKPTR 4
+/// a non-specific error in the compressed bitstream
+#define AV_LZO_ERROR 8
+/** @} */
+
+#define AV_LZO_INPUT_PADDING 8
+#define AV_LZO_OUTPUT_PADDING 12
+
+/**
+ * @brief Decodes LZO 1x compressed data.
+ * @param out output buffer
+ * @param outlen size of output buffer, number of bytes left are returned here
+ * @param in input buffer
+ * @param inlen size of input buffer, number of bytes left are returned here
+ * @return 0 on success, otherwise a combination of the error flags above
+ *
+ * Make sure all buffers are appropriately padded, in must provide
+ * AV_LZO_INPUT_PADDING, out must provide AV_LZO_OUTPUT_PADDING additional bytes.
+ */
+int av_lzo1x_decode(void *out, int *outlen, const void *in, int *inlen);
+
+/**
+ * @brief deliberately overlapping memcpy implementation
+ * @param dst destination buffer; must be padded with 12 additional bytes
+ * @param back how many bytes back we start (the initial size of the overlapping window), must be > 0
+ * @param cnt number of bytes to copy, must be >= 0
+ *
+ * cnt > back is valid, this will copy the bytes we just copied,
+ * thus creating a repeating pattern with a period length of back.
+ */
+void av_memcpy_backptr(uint8_t *dst, int back, int cnt);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_LZO_H */
diff --git a/thirdparties/mac/include/libavutil/mathematics.h b/thirdparties/mac/include/libavutil/mathematics.h
new file mode 100644
index 0000000..71f0392
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/mathematics.h
@@ -0,0 +1,147 @@
+/*
+ * copyright (c) 2005-2012 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_MATHEMATICS_H
+#define AVUTIL_MATHEMATICS_H
+
+#include <stdint.h>
+#include <math.h>
+#include "attributes.h"
+#include "rational.h"
+#include "intfloat.h"
+
+#ifndef M_E
+#define M_E 2.7182818284590452354 /* e */
+#endif
+#ifndef M_LN2
+#define M_LN2 0.69314718055994530942 /* log_e 2 */
+#endif
+#ifndef M_LN10
+#define M_LN10 2.30258509299404568402 /* log_e 10 */
+#endif
+#ifndef M_LOG2_10
+#define M_LOG2_10 3.32192809488736234787 /* log_2 10 */
+#endif
+#ifndef M_PHI
+#define M_PHI 1.61803398874989484820 /* phi / golden ratio */
+#endif
+#ifndef M_PI
+#define M_PI 3.14159265358979323846 /* pi */
+#endif
+#ifndef M_SQRT1_2
+#define M_SQRT1_2 0.70710678118654752440 /* 1/sqrt(2) */
+#endif
+#ifndef M_SQRT2
+#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
+#endif
+#ifndef NAN
+#define NAN av_int2float(0x7fc00000)
+#endif
+#ifndef INFINITY
+#define INFINITY av_int2float(0x7f800000)
+#endif
+
+/**
+ * @addtogroup lavu_math
+ * @{
+ */
+
+
+enum AVRounding {
+ AV_ROUND_ZERO = 0, ///< Round toward zero.
+ AV_ROUND_INF = 1, ///< Round away from zero.
+ AV_ROUND_DOWN = 2, ///< Round toward -infinity.
+ AV_ROUND_UP = 3, ///< Round toward +infinity.
+ AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero.
+ AV_ROUND_PASS_MINMAX = 8192, ///< Flag to pass INT64_MIN/MAX through instead of rescaling, this avoids special cases for AV_NOPTS_VALUE
+};
+
+/**
+ * Return the greatest common divisor of a and b.
+ * If both a and b are 0 or either or both are <0 then behavior is
+ * undefined.
+ */
+int64_t av_const av_gcd(int64_t a, int64_t b);
+
+/**
+ * Rescale a 64-bit integer with rounding to nearest.
+ * A simple a*b/c isn't possible as it can overflow.
+ */
+int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
+
+/**
+ * Rescale a 64-bit integer with specified rounding.
+ * A simple a*b/c isn't possible as it can overflow.
+ *
+ * @return rescaled value a, or if AV_ROUND_PASS_MINMAX is set and a is
+ * INT64_MIN or INT64_MAX then a is passed through unchanged.
+ */
+int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const;
+
+/**
+ * Rescale a 64-bit integer by 2 rational numbers.
+ */
+int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
+
+/**
+ * Rescale a 64-bit integer by 2 rational numbers with specified rounding.
+ *
+ * @return rescaled value a, or if AV_ROUND_PASS_MINMAX is set and a is
+ * INT64_MIN or INT64_MAX then a is passed through unchanged.
+ */
+int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
+ enum AVRounding) av_const;
+
+/**
+ * Compare 2 timestamps each in its own timebases.
+ * The result of the function is undefined if one of the timestamps
+ * is outside the int64_t range when represented in the others timebase.
+ * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position
+ */
+int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
+
+/**
+ * Compare 2 integers modulo mod.
+ * That is we compare integers a and b for which only the least
+ * significant log2(mod) bits are known.
+ *
+ * @param mod must be a power of 2
+ * @return a negative value if a is smaller than b
+ * a positive value if a is greater than b
+ * 0 if a equals b
+ */
+int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod);
+
+/**
+ * Rescale a timestamp while preserving known durations.
+ *
+ * @param in_ts Input timestamp
+ * @param in_tb Input timesbase
+ * @param fs_tb Duration and *last timebase
+ * @param duration duration till the next call
+ * @param out_tb Output timesbase
+ */
+int64_t av_rescale_delta(AVRational in_tb, int64_t in_ts, AVRational fs_tb, int duration, int64_t *last, AVRational out_tb);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_MATHEMATICS_H */
diff --git a/thirdparties/mac/include/libavutil/md5.h b/thirdparties/mac/include/libavutil/md5.h
new file mode 100644
index 0000000..1d7be9f
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/md5.h
@@ -0,0 +1,49 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_MD5_H
+#define AVUTIL_MD5_H
+
+#include <stdint.h>
+
+#include "attributes.h"
+#include "version.h"
+
+/**
+ * @defgroup lavu_md5 MD5
+ * @ingroup lavu_crypto
+ * @{
+ */
+
+extern const int av_md5_size;
+
+struct AVMD5;
+
+struct AVMD5 *av_md5_alloc(void);
+void av_md5_init(struct AVMD5 *ctx);
+void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, const int len);
+void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
+void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len);
+
+/**
+ * @}
+ */
+
+#endif /* AVUTIL_MD5_H */
diff --git a/thirdparties/mac/include/libavutil/mem.h b/thirdparties/mac/include/libavutil/mem.h
new file mode 100644
index 0000000..ced9453
--- /dev/null
+++ b/thirdparties/mac/include/libavutil/mem.h
@@ -0,0 +1,235 @@
+/*
+ * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * memory handling functions
+ */
+
+#ifndef AVUTIL_MEM_H
+#define AVUTIL_MEM_H
+
+#include <limits.h>
+#include <stdint.h>
+
+#include "attributes.h"
+#include "error.h"
+#include "avutil.h"
+
+/**
+ * @addtogroup lavu_mem
+ * @{
+ */
+
+
+#if defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1110 || defined(__SUNPRO_C)
+ #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
+ #define DECLARE_ASM_CONST(n,t,v) const t __attribute__ ((aligned (n))) v
+#elif defined(__TI_COMPILER_VERSION__)
+ #define DECLARE_ALIGNED(n,t,v) \
+ AV_PRAGMA(DATA_ALIGN(v,n)) \
+ t __attribute__((aligned(n))) v
+ #define DECLARE_ASM_CONST(n,t,v) \
+ AV_PRAGMA(DATA_ALIGN(v,n)) \
+ static const t __attribute__((aligned(n))) v
+#elif defined(__GNUC__)
+ #define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
+ #define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v
+#elif defined(_MSC_VER)
+ #define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
+ #define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v
+#else
+ #define DECLARE_