diff options
Diffstat (limited to 'libavcodec/libx264.c')
-rw-r--r-- | libavcodec/libx264.c | 132 |
1 files changed, 111 insertions, 21 deletions
diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c index c525808..7410112 100644 --- a/libavcodec/libx264.c +++ b/libavcodec/libx264.c @@ -2,20 +2,20 @@ * H.264 encoding using the x264 library * Copyright (C) 2005 Mans Rullgard <mans@mansr.com> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -41,7 +41,11 @@ typedef struct X264Context { char *preset; char *tune; char *profile; + char *level; int fastfirstpass; + char *stats; + char *wpredp; + char *x264opts; float crf; float crf_max; int cqp; @@ -93,9 +97,14 @@ static int encode_nals(AVCodecContext *ctx, uint8_t *buf, int size, /* Write the SEI as part of the first frame. */ if (x4->sei_size > 0 && nnal > 0) { + if (x4->sei_size > size) { + av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n"); + return -1; + } memcpy(p, x4->sei, x4->sei_size); p += x4->sei_size; x4->sei_size = 0; + av_freep(&x4->sei); } for (i = 0; i < nnal; i++){ @@ -106,6 +115,11 @@ static int encode_nals(AVCodecContext *ctx, uint8_t *buf, int size, memcpy(x4->sei, nals[i].p_payload, nals[i].i_payload); continue; } + if (nals[i].i_payload > (size - (p - buf))) { + // return only complete nals which fit in buf + av_log(ctx, AV_LOG_ERROR, "Error: nal buffer is too small\n"); + break; + } memcpy(p, nals[i].p_payload, nals[i].i_payload); p += nals[i].i_payload; } @@ -113,23 +127,43 @@ static int encode_nals(AVCodecContext *ctx, uint8_t *buf, int size, return p - buf; } +static int avfmt2_num_planes(int avfmt) +{ + switch (avfmt) { + case PIX_FMT_YUV420P: + case PIX_FMT_YUVJ420P: + case PIX_FMT_YUV420P9: + case PIX_FMT_YUV420P10: + case PIX_FMT_YUV444P: + return 3; + + case PIX_FMT_BGR24: + case PIX_FMT_RGB24: + return 1; + + default: + return 3; + } +} + static int X264_frame(AVCodecContext *ctx, uint8_t *buf, - int bufsize, void *data) + int orig_bufsize, void *data) { X264Context *x4 = ctx->priv_data; AVFrame *frame = data; x264_nal_t *nal; int nnal, i; x264_picture_t pic_out; + int bufsize; x264_picture_init( &x4->pic ); x4->pic.img.i_csp = x4->params.i_csp; if (x264_bit_depth > 8) x4->pic.img.i_csp |= X264_CSP_HIGH_DEPTH; - x4->pic.img.i_plane = 3; + x4->pic.img.i_plane = avfmt2_num_planes(ctx->pix_fmt); if (frame) { - for (i = 0; i < 3; i++) { + for (i = 0; i < x4->pic.img.i_plane; i++) { x4->pic.img.plane[i] = frame->data[i]; x4->pic.img.i_stride[i] = frame->linesize[i]; } @@ -144,9 +178,16 @@ static int X264_frame(AVCodecContext *ctx, uint8_t *buf, x4->params.b_tff = frame->top_field_first; x264_encoder_reconfig(x4->enc, &x4->params); } + if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den + || x4->params.vui.i_sar_width != ctx->sample_aspect_ratio.num) { + x4->params.vui.i_sar_height = ctx->sample_aspect_ratio.den; + x4->params.vui.i_sar_width = ctx->sample_aspect_ratio.num; + x264_encoder_reconfig(x4->enc, &x4->params); + } } do { + bufsize = orig_bufsize; if (x264_encoder_encode(x4->enc, &nal, &nnal, frame? &x4->pic: NULL, &pic_out) < 0) return -1; @@ -192,6 +233,20 @@ static av_cold int X264_close(AVCodecContext *avctx) return 0; } +#define OPT_STR(opt, param) \ + do { \ + int ret; \ + if (param && (ret = x264_param_parse(&x4->params, opt, param)) < 0) { \ + if(ret == X264_PARAM_BAD_NAME) \ + av_log(avctx, AV_LOG_ERROR, \ + "bad option '%s': '%s'\n", opt, param); \ + else \ + av_log(avctx, AV_LOG_ERROR, \ + "bad value for '%s': '%s'\n", opt, param); \ + return -1; \ + } \ + } while (0); + static int convert_pix_fmt(enum PixelFormat pix_fmt) { switch (pix_fmt) { @@ -204,6 +259,13 @@ static int convert_pix_fmt(enum PixelFormat pix_fmt) case PIX_FMT_YUV444P: case PIX_FMT_YUV444P9: case PIX_FMT_YUV444P10: return X264_CSP_I444; +#ifdef X264_CSP_BGR + case PIX_FMT_BGR24: + return X264_CSP_BGR; + + case PIX_FMT_RGB24: + return X264_CSP_RGB; +#endif }; return 0; } @@ -222,6 +284,9 @@ static av_cold int X264_init(AVCodecContext *avctx) x4->params.b_deblocking_filter = avctx->flags & CODEC_FLAG_LOOP_FILTER; + x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor); + x4->params.rc.f_pb_factor = avctx->b_quant_factor; + x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset; if (x4->preset || x4->tune) if (x264_param_default_preset(&x4->params, x4->preset, x4->tune) < 0) { av_log(avctx, AV_LOG_ERROR, "Error setting preset/tune %s/%s.\n", x4->preset, x4->tune); @@ -236,6 +301,8 @@ static av_cold int X264_init(AVCodecContext *avctx) x4->params.i_log_level = X264_LOG_DEBUG; x4->params.i_csp = convert_pix_fmt(avctx->pix_fmt); + OPT_STR("weightp", x4->wpredp); + if (avctx->bit_rate) { x4->params.rc.i_bitrate = avctx->bit_rate / 1000; x4->params.rc.i_rc_method = X264_RC_ABR; @@ -269,15 +336,26 @@ static av_cold int X264_init(AVCodecContext *avctx) x4->params.rc.f_rf_constant_max = x4->crf_max; } + OPT_STR("stats", x4->stats); + if (avctx->rc_buffer_size && avctx->rc_initial_buffer_occupancy && (avctx->rc_initial_buffer_occupancy <= avctx->rc_buffer_size)) { x4->params.rc.f_vbv_buffer_init = (float)avctx->rc_initial_buffer_occupancy / avctx->rc_buffer_size; } - x4->params.rc.f_ip_factor = 1 / fabs(avctx->i_quant_factor); - x4->params.rc.f_pb_factor = avctx->b_quant_factor; - x4->params.analyse.i_chroma_qp_offset = avctx->chromaoffset; + OPT_STR("level", x4->level); + + if(x4->x264opts){ + const char *p= x4->x264opts; + while(p){ + char param[256]={0}, val[256]={0}; + sscanf(p, "%255[^:=]=%255[^:]", param, val); + OPT_STR(param, val); + p= strchr(p, ':'); + p+=!!p; + } + } #if FF_API_X264_GLOBAL_OPTS if (avctx->aq_mode >= 0) @@ -314,16 +392,18 @@ static av_cold int X264_init(AVCodecContext *avctx) if (avctx->partitions & X264_PART_B8X8) x4->params.analyse.inter |= X264_ANALYSE_BSUB16x16; } - x4->params.analyse.b_ssim = avctx->flags2 & CODEC_FLAG2_SSIM; - x4->params.b_intra_refresh = avctx->flags2 & CODEC_FLAG2_INTRA_REFRESH; - x4->params.i_bframe_pyramid = avctx->flags2 & CODEC_FLAG2_BPYRAMID ? X264_B_PYRAMID_NORMAL : X264_B_PYRAMID_NONE; - x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED; - x4->params.analyse.b_mixed_references = avctx->flags2 & CODEC_FLAG2_MIXED_REFS; - x4->params.analyse.b_transform_8x8 = avctx->flags2 & CODEC_FLAG2_8X8DCT; - x4->params.analyse.b_fast_pskip = avctx->flags2 & CODEC_FLAG2_FASTPSKIP; - x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD; - x4->params.analyse.b_psy = avctx->flags2 & CODEC_FLAG2_PSY; - x4->params.rc.b_mb_tree = !!(avctx->flags2 & CODEC_FLAG2_MBTREE); + if (avctx->flags2) { + x4->params.analyse.b_ssim = avctx->flags2 & CODEC_FLAG2_SSIM; + x4->params.b_intra_refresh = avctx->flags2 & CODEC_FLAG2_INTRA_REFRESH; + x4->params.i_bframe_pyramid = avctx->flags2 & CODEC_FLAG2_BPYRAMID ? X264_B_PYRAMID_NORMAL : X264_B_PYRAMID_NONE; + x4->params.analyse.b_weighted_bipred = avctx->flags2 & CODEC_FLAG2_WPRED; + x4->params.analyse.b_mixed_references = avctx->flags2 & CODEC_FLAG2_MIXED_REFS; + x4->params.analyse.b_transform_8x8 = avctx->flags2 & CODEC_FLAG2_8X8DCT; + x4->params.analyse.b_fast_pskip = avctx->flags2 & CODEC_FLAG2_FASTPSKIP; + x4->params.b_aud = avctx->flags2 & CODEC_FLAG2_AUD; + x4->params.analyse.b_psy = avctx->flags2 & CODEC_FLAG2_PSY; + x4->params.rc.b_mb_tree = !!(avctx->flags2 & CODEC_FLAG2_MBTREE); + } #endif if (avctx->me_method == ME_EPZS) @@ -436,7 +516,7 @@ static av_cold int X264_init(AVCodecContext *avctx) x4->params.b_interlaced = avctx->flags & CODEC_FLAG_INTERLACED_DCT; - x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP); +// x4->params.b_open_gop = !(avctx->flags & CODEC_FLAG_CLOSED_GOP); x4->params.i_slice_count = avctx->slices; @@ -481,6 +561,10 @@ static const enum PixelFormat pix_fmts_8bit[] = { PIX_FMT_YUVJ420P, PIX_FMT_YUV422P, PIX_FMT_YUV444P, +#ifdef X264_CSP_BGR + PIX_FMT_BGR24, + PIX_FMT_RGB24, +#endif PIX_FMT_NONE }; static const enum PixelFormat pix_fmts_9bit[] = { @@ -512,6 +596,10 @@ static const AVOption options[] = { { "tune", "Tune the encoding params (cf. x264 --fullhelp)", OFFSET(tune), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, { "profile", "Set profile restrictions (cf. x264 --fullhelp) ", OFFSET(profile), AV_OPT_TYPE_STRING, { 0 }, 0, 0, VE}, { "fastfirstpass", "Use fast settings when encoding first pass", OFFSET(fastfirstpass), AV_OPT_TYPE_INT, { 1 }, 0, 1, VE}, + {"level", "Specify level (as defined by Annex A)", OFFSET(level), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE}, + {"passlogfile", "Filename for 2 pass stats", OFFSET(stats), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE}, + {"wpredp", "Weighted prediction for P-frames", OFFSET(wpredp), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE}, + {"x264opts", "x264 options", OFFSET(x264opts), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE}, { "crf", "Select the quality for constant quality mode", OFFSET(crf), AV_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE }, { "crf_max", "In CRF mode, prevents VBV from lowering quality beyond this point.",OFFSET(crf_max), AV_OPT_TYPE_FLOAT, {-1 }, -1, FLT_MAX, VE }, { "qp", "Constant quantization parameter rate control method",OFFSET(cqp), AV_OPT_TYPE_INT, {-1 }, -1, INT_MAX, VE }, @@ -563,12 +651,14 @@ static const AVClass class = { static const AVCodecDefault x264_defaults[] = { { "b", "0" }, { "bf", "-1" }, + { "flags2", "0" }, { "g", "-1" }, { "qmin", "-1" }, { "qmax", "-1" }, { "qdiff", "-1" }, { "qblur", "-1" }, { "qcomp", "-1" }, + { "rc_lookahead", "-1" }, { "refs", "-1" }, { "sc_threshold", "-1" }, { "trellis", "-1" }, |