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videotoolbox.h
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/*
* Videotoolbox hardware acceleration
*
* copyright (c) 2012 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_VIDEOTOOLBOX_H
#define AVCODEC_VIDEOTOOLBOX_H
/**
* @file
* @ingroup lavc_codec_hwaccel_videotoolbox
* Public libavcodec Videotoolbox header.
*/
/**
* @defgroup lavc_codec_hwaccel_videotoolbox VideoToolbox Decoder
* @ingroup lavc_codec_hwaccel
*
* Hardware accelerated decoding using VideoToolbox on Apple Platforms
*
* @{
*/
#include <stdint.h>
#define Picture QuickdrawPicture
#include <VideoToolbox/VideoToolbox.h>
#undef Picture
#include "libavcodec/avcodec.h"
#include "libavutil/attributes.h"
/**
* This struct holds all the information that needs to be passed
* between the caller and libavcodec for initializing Videotoolbox decoding.
* Its size is not a part of the public ABI, it must be allocated with
* av_videotoolbox_alloc_context() and freed with av_free().
*/
typedef struct AVVideotoolboxContext {
/**
* Videotoolbox decompression session object.
*/
VTDecompressionSessionRef session;
/**
* CVPixelBuffer Format Type that Videotoolbox will use for decoded frames.
* set by the caller. If this is set to 0, then no specific format is
* requested from the decoder, and its native format is output.
*/
OSType cv_pix_fmt_type;
/**
* CoreMedia Format Description that Videotoolbox will use to create the decompression session.
*/
CMVideoFormatDescriptionRef cm_fmt_desc;
/**
* CoreMedia codec type that Videotoolbox will use to create the decompression session.
*/
int cm_codec_type;
} AVVideotoolboxContext;
/**
* @}
*/
#endif /* AVCODEC_VIDEOTOOLBOX_H */
attributes.h
Macro definitions for various function/variable attributes.
avcodec.h
Libavcodec external API header.
AVVideotoolboxContext
This struct holds all the information that needs to be passed between the caller and libavcodec for i...
Definition videotoolbox.h:57
AVVideotoolboxContext::cm_codec_type
int cm_codec_type
CoreMedia codec type that Videotoolbox will use to create the decompression session.
Definition videotoolbox.h:78
AVVideotoolboxContext::cm_fmt_desc
CMVideoFormatDescriptionRef cm_fmt_desc
CoreMedia Format Description that Videotoolbox will use to create the decompression session.
Definition videotoolbox.h:73
AVVideotoolboxContext::cv_pix_fmt_type
OSType cv_pix_fmt_type
CVPixelBuffer Format Type that Videotoolbox will use for decoded frames.
Definition videotoolbox.h:68
AVVideotoolboxContext::session
VTDecompressionSessionRef session
Videotoolbox decompression session object.
Definition videotoolbox.h:61