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Diffstat (limited to 'libavutil/hwcontext_videotoolbox.h')
-rw-r--r-- | libavutil/hwcontext_videotoolbox.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/libavutil/hwcontext_videotoolbox.h b/libavutil/hwcontext_videotoolbox.h new file mode 100644 index 0000000000..7b4de4b7e1 --- /dev/null +++ b/libavutil/hwcontext_videotoolbox.h @@ -0,0 +1,54 @@ +/* + * 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_VT_H +#define AVUTIL_HWCONTEXT_VT_H + +#include <stdint.h> + +#include <VideoToolbox/VideoToolbox.h> + +#include "pixfmt.h" + +/** + * @file + * An API-specific header for AV_HWDEVICE_TYPE_VIDEOTOOLBOX. + * + * This API currently does not support frame allocation, as the raw VideoToolbox + * API does allocation, and FFmpeg itself never has the need to allocate frames. + * + * If the API user sets a custom pool, AVHWFramesContext.pool must return + * AVBufferRefs whose data pointer is a CVImageBufferRef or CVPixelBufferRef. + * + * 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); + +#endif /* AVUTIL_HWCONTEXT_VT_H */ |