FFmpeg 6.1.1
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
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15 * License along with FFmpeg; if not, write to the Free Software
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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 "frame.h"
27#include "pixfmt.h"
28
29/**
30 * @file
31 * An API-specific header for AV_HWDEVICE_TYPE_VIDEOTOOLBOX.
32 *
33 * This API supports frame allocation using a native CVPixelBufferPool
34 * instead of an AVBufferPool.
35 *
36 * If the API user sets a custom pool, AVHWFramesContext.pool must return
37 * AVBufferRefs whose data pointer is a CVImageBufferRef or CVPixelBufferRef.
38 * Note that the underlying CVPixelBuffer could be retained by OS frameworks
39 * depending on application usage, so it is preferable to let CoreVideo manage
40 * the pool using the default implementation.
41 *
42 * Currently AVHWDeviceContext.hwctx and AVHWFramesContext.hwctx are always
43 * NULL.
44 */
45
46/**
47 * Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat.
48 * Returns AV_PIX_FMT_NONE if no known equivalent was found.
49 */
51
52/**
53 * Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format.
54 * Returns 0 if no known equivalent was found.
55 */
57
58/**
59 * Same as av_map_videotoolbox_format_from_pixfmt function, but can map and
60 * return full range pixel formats via a flag.
61 */
63
64/**
65 * Convert an AVChromaLocation to a VideoToolbox/CoreVideo chroma location string.
66 * Returns 0 if no known equivalent was found.
67 */
69
70/**
71 * Convert an AVColorSpace to a VideoToolbox/CoreVideo color matrix string.
72 * Returns 0 if no known equivalent was found.
73 */
75
76/**
77 * Convert an AVColorPrimaries to a VideoToolbox/CoreVideo color primaries string.
78 * Returns 0 if no known equivalent was found.
79 */
81
82/**
83 * Convert an AVColorTransferCharacteristic to a VideoToolbox/CoreVideo color transfer
84 * function string.
85 * Returns 0 if no known equivalent was found.
86 */
88
89/**
90 * Update a CVPixelBufferRef's metadata to based on an AVFrame.
91 * Returns 0 if no known equivalent was found.
92 */
94 CVPixelBufferRef pixbuf, const struct AVFrame *src);
95
96#endif /* AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H */
static enum AVPixelFormat pix_fmt
Definition: demux_decode.c:41
reference-counted frame API
CFStringRef av_map_videotoolbox_chroma_loc_from_av(enum AVChromaLocation loc)
Convert an AVChromaLocation to a VideoToolbox/CoreVideo chroma location string.
int av_vt_pixbuf_set_attachments(void *log_ctx, CVPixelBufferRef pixbuf, const struct AVFrame *src)
Update a CVPixelBufferRef's metadata to based on an AVFrame.
enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt(uint32_t cv_fmt)
Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat.
CFStringRef av_map_videotoolbox_color_matrix_from_av(enum AVColorSpace space)
Convert an AVColorSpace to a VideoToolbox/CoreVideo color matrix string.
CFStringRef av_map_videotoolbox_color_primaries_from_av(enum AVColorPrimaries pri)
Convert an AVColorPrimaries to a VideoToolbox/CoreVideo color primaries string.
uint32_t av_map_videotoolbox_format_from_pixfmt(enum AVPixelFormat pix_fmt)
Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format.
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...
CFStringRef av_map_videotoolbox_color_trc_from_av(enum AVColorTransferCharacteristic trc)
Convert an AVColorTransferCharacteristic to a VideoToolbox/CoreVideo color transfer function string.
pixel format definitions
AVChromaLocation
Location of chroma samples.
Definition: pixfmt.h:692
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
AVColorPrimaries
Chromaticity coordinates of the source primaries.
Definition: pixfmt.h:545
AVColorTransferCharacteristic
Color Transfer Characteristic.
Definition: pixfmt.h:570
AVColorSpace
YUV colorspace type.
Definition: pixfmt.h:599
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340