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95 lines
3.3 KiB
95 lines
3.3 KiB
/* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H |
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#define AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H |
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#include <stdint.h> |
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#include <VideoToolbox/VideoToolbox.h> |
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#include "pixfmt.h" |
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/** |
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* @file |
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* An API-specific header for AV_HWDEVICE_TYPE_VIDEOTOOLBOX. |
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* |
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* This API supports frame allocation using a native CVPixelBufferPool |
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* instead of an AVBufferPool. |
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* |
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* If the API user sets a custom pool, AVHWFramesContext.pool must return |
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* AVBufferRefs whose data pointer is a CVImageBufferRef or CVPixelBufferRef. |
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* Note that the underlying CVPixelBuffer could be retained by OS frameworks |
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* depending on application usage, so it is preferable to let CoreVideo manage |
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* the pool using the default implementation. |
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* |
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* Currently AVHWDeviceContext.hwctx and AVHWFramesContext.hwctx are always |
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* NULL. |
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*/ |
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/** |
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* Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat. |
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* Returns AV_PIX_FMT_NONE if no known equivalent was found. |
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*/ |
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enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt(uint32_t cv_fmt); |
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/** |
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* Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format. |
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* Returns 0 if no known equivalent was found. |
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*/ |
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uint32_t av_map_videotoolbox_format_from_pixfmt(enum AVPixelFormat pix_fmt); |
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/** |
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* Same as av_map_videotoolbox_format_from_pixfmt function, but can map and |
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* return full range pixel formats via a flag. |
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*/ |
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uint32_t av_map_videotoolbox_format_from_pixfmt2(enum AVPixelFormat pix_fmt, bool full_range); |
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/** |
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* Convert an AVChromaLocation to a VideoToolbox/CoreVideo chroma location string. |
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* Returns 0 if no known equivalent was found. |
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*/ |
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CFStringRef av_map_videotoolbox_chroma_loc_from_av(enum AVChromaLocation loc); |
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/** |
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* Convert an AVColorSpace to a VideoToolbox/CoreVideo color matrix string. |
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* Returns 0 if no known equivalent was found. |
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*/ |
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CFStringRef av_map_videotoolbox_color_matrix_from_av(enum AVColorSpace space); |
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/** |
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* Convert an AVColorPrimaries to a VideoToolbox/CoreVideo color primaries string. |
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* Returns 0 if no known equivalent was found. |
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*/ |
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CFStringRef av_map_videotoolbox_color_primaries_from_av(enum AVColorPrimaries pri); |
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/** |
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* Convert an AVColorTransferCharacteristic to a VideoToolbox/CoreVideo color transfer |
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* function string. |
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* Returns 0 if no known equivalent was found. |
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*/ |
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CFStringRef av_map_videotoolbox_color_trc_from_av(enum AVColorTransferCharacteristic trc); |
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/** |
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* Update a CVPixelBufferRef's metadata to based on an AVFrame. |
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* Returns 0 if no known equivalent was found. |
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*/ |
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int av_vt_pixbuf_set_attachments(void *log_ctx, |
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CVPixelBufferRef pixbuf, const struct AVFrame *src); |
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#endif /* AVUTIL_HWCONTEXT_VIDEOTOOLBOX_H */
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