| /* | |
| * 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 | |
| */ | |
| /** | |
| * @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); | |