mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
97 lines
3.4 KiB
C
97 lines
3.4 KiB
C
/*
|
|
* 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 AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H
|
|
#define AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <VideoToolbox/VideoToolbox.h>
|
|
|
|
#include "frame.h"
|
|
#include "pixfmt.h"
|
|
|
|
/**
|
|
* @file
|
|
* An API-specific header for AV_HWDEVICE_TYPE_VIDEOTOOLBOX.
|
|
*
|
|
* This API supports frame allocation using a native CVPixelBufferPool
|
|
* instead of an AVBufferPool.
|
|
*
|
|
* If the API user sets a custom pool, AVHWFramesContext.pool must return
|
|
* AVBufferRefs whose data pointer is a CVImageBufferRef or CVPixelBufferRef.
|
|
* Note that the underlying CVPixelBuffer could be retained by OS frameworks
|
|
* depending on application usage, so it is preferable to let CoreVideo manage
|
|
* the pool using the default implementation.
|
|
*
|
|
* Currently AVHWDeviceContext.hwctx and AVHWFramesContext.hwctx are always
|
|
* NULL.
|
|
*/
|
|
|
|
/**
|
|
* Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat.
|
|
* Returns AV_PIX_FMT_NONE if no known equivalent was found.
|
|
*/
|
|
enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt(uint32_t cv_fmt);
|
|
|
|
/**
|
|
* Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format.
|
|
* Returns 0 if no known equivalent was found.
|
|
*/
|
|
uint32_t av_map_videotoolbox_format_from_pixfmt(enum AVPixelFormat pix_fmt);
|
|
|
|
/**
|
|
* Same as av_map_videotoolbox_format_from_pixfmt function, but can map and
|
|
* return full range pixel formats via a flag.
|
|
*/
|
|
uint32_t av_map_videotoolbox_format_from_pixfmt2(enum AVPixelFormat pix_fmt, bool full_range);
|
|
|
|
/**
|
|
* Convert an AVChromaLocation to a VideoToolbox/CoreVideo chroma location string.
|
|
* Returns 0 if no known equivalent was found.
|
|
*/
|
|
CFStringRef av_map_videotoolbox_chroma_loc_from_av(enum AVChromaLocation loc);
|
|
|
|
/**
|
|
* Convert an AVColorSpace to a VideoToolbox/CoreVideo color matrix string.
|
|
* Returns 0 if no known equivalent was found.
|
|
*/
|
|
CFStringRef av_map_videotoolbox_color_matrix_from_av(enum AVColorSpace space);
|
|
|
|
/**
|
|
* Convert an AVColorPrimaries to a VideoToolbox/CoreVideo color primaries string.
|
|
* Returns 0 if no known equivalent was found.
|
|
*/
|
|
CFStringRef av_map_videotoolbox_color_primaries_from_av(enum AVColorPrimaries pri);
|
|
|
|
/**
|
|
* Convert an AVColorTransferCharacteristic to a VideoToolbox/CoreVideo color transfer
|
|
* function string.
|
|
* Returns 0 if no known equivalent was found.
|
|
*/
|
|
CFStringRef av_map_videotoolbox_color_trc_from_av(enum AVColorTransferCharacteristic trc);
|
|
|
|
/**
|
|
* Update a CVPixelBufferRef's metadata to based on an AVFrame.
|
|
* Returns 0 if no known equivalent was found.
|
|
*/
|
|
int av_vt_pixbuf_set_attachments(void *log_ctx,
|
|
CVPixelBufferRef pixbuf, const struct AVFrame *src);
|
|
|
|
#endif /* AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H */
|