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Diffstat (limited to 'thirdparties/mac/include/libavcodec/vda.h')
| -rw-r--r-- | thirdparties/mac/include/libavcodec/vda.h | 226 |
1 files changed, 226 insertions, 0 deletions
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 */ |
