FFmpeg
videotoolbox.h
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1 /*
2  * Videotoolbox hardware acceleration
3  *
4  * copyright (c) 2012 Sebastien Zwickert
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #ifndef AVCODEC_VIDEOTOOLBOX_H
24 #define AVCODEC_VIDEOTOOLBOX_H
25 
32 #include <stdint.h>
33 
34 #define Picture QuickdrawPicture
35 #include <VideoToolbox/VideoToolbox.h>
36 #undef Picture
37 
38 #include "libavcodec/avcodec.h"
39 
46 typedef struct AVVideotoolboxContext {
51  VTDecompressionSessionRef session;
52 
57  VTDecompressionOutputCallback output_callback;
58 
65 
70  CMVideoFormatDescriptionRef cm_fmt_desc;
71 
78 
93 
103 
114 
122 
127 #endif /* AVCODEC_VIDEOTOOLBOX_H */
int cm_codec_type
CoreMedia codec type that Videotoolbox will use to create the decompression session.
Definition: videotoolbox.h:76
AVVideotoolboxContext * av_videotoolbox_alloc_context(void)
Allocate and initialize a Videotoolbox context.
struct AVVideotoolboxContext AVVideotoolboxContext
This struct holds all the information that needs to be passed between the caller and libavcodec for i...
int av_videotoolbox_default_init(AVCodecContext *avctx)
This is a convenience function that creates and sets up the Videotoolbox context using an internal im...
VTDecompressionSessionRef session
Videotoolbox decompression session object.
Definition: videotoolbox.h:51
int av_videotoolbox_default_init2(AVCodecContext *avctx, AVVideotoolboxContext *vtctx)
This is a convenience function that creates and sets up the Videotoolbox context using an internal im...
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1518
CMVideoFormatDescriptionRef cm_fmt_desc
CoreMedia Format Description that Videotoolbox will use to create the decompression session...
Definition: videotoolbox.h:70
OSType cv_pix_fmt_type
CVPixelBuffer Format Type that Videotoolbox will use for decoded frames.
Definition: videotoolbox.h:64
VTDecompressionOutputCallback output_callback
The output callback that must be passed to the session.
Definition: videotoolbox.h:57
void av_videotoolbox_default_free(AVCodecContext *avctx)
This function must be called to free the Videotoolbox context initialized with av_videotoolbox_defaul...
This struct holds all the information that needs to be passed between the caller and libavcodec for i...
Definition: videotoolbox.h:46