FFmpeg
hwcontext_videotoolbox.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H
20 #define AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H
21 
22 #include <stdint.h>
23 
24 #include <VideoToolbox/VideoToolbox.h>
25 
26 #include "pixfmt.h"
27 
28 /**
29  * @file
30  * An API-specific header for AV_HWDEVICE_TYPE_VIDEOTOOLBOX.
31  *
32  * This API currently does not support frame allocation, as the raw VideoToolbox
33  * API does allocation, and FFmpeg itself never has the need to allocate frames.
34  *
35  * If the API user sets a custom pool, AVHWFramesContext.pool must return
36  * AVBufferRefs whose data pointer is a CVImageBufferRef or CVPixelBufferRef.
37  *
38  * Currently AVHWDeviceContext.hwctx and AVHWFramesContext.hwctx are always
39  * NULL.
40  */
41 
42 /**
43  * Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat.
44  * Returns AV_PIX_FMT_NONE if no known equivalent was found.
45  */
47 
48 /**
49  * Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format.
50  * Returns 0 if no known equivalent was found.
51  */
53 
54 /**
55  * Same as av_map_videotoolbox_format_from_pixfmt function, but can map and
56  * return full range pixel formats via a flag.
57  */
59 
60 #endif /* AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H */
static enum AVPixelFormat pix_fmt
bool full_range
enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt(uint32_t cv_fmt)
Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat.
uint32_t av_map_videotoolbox_format_from_pixfmt(enum AVPixelFormat pix_fmt)
Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format.
uint32_t cv_fmt
uint32_t av_map_videotoolbox_format_from_pixfmt2(enum AVPixelFormat pix_fmt, bool full_range)
Same as av_map_videotoolbox_format_from_pixfmt function, but can map and return full range pixel form...
pixel format definitions
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64