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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /media/ffvpx/libavcodec/atsc_a53.h | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | media/ffvpx/libavcodec/atsc_a53.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/atsc_a53.h b/media/ffvpx/libavcodec/atsc_a53.h new file mode 100644 index 0000000000..0622a55549 --- /dev/null +++ b/media/ffvpx/libavcodec/atsc_a53.h @@ -0,0 +1,56 @@ +/* + * 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 AVCODEC_ATSC_A53_H +#define AVCODEC_ATSC_A53_H + +#include <stddef.h> +#include <stdint.h> + +#include "libavutil/buffer.h" +#include "libavutil/frame.h" + +/** + * Check AVFrame for A53 side data and allocate and fill SEI message with A53 info + * + * @param frame Raw frame to get A53 side data from + * @param prefix_len Number of bytes to allocate before SEI message + * @param data Pointer to a variable to store allocated memory + * Upon return the variable will hold NULL on error or if frame has no A53 info. + * Otherwise it will point to prefix_len uninitialized bytes followed by + * *sei_size SEI message + * @param sei_size Pointer to a variable to store generated SEI message length + * @return Zero on success, negative error code on failure + */ +int ff_alloc_a53_sei(const AVFrame *frame, size_t prefix_len, + void **data, size_t *sei_size); + +/** + * Parse a data array for ATSC A53 Part 4 Closed Captions and store them in an AVBufferRef. + * + * @param pbuf Pointer to an AVBufferRef to append the closed captions. *pbuf may be NULL, in + * which case a new buffer will be allocated and put in it. + * @param data The data array containing the raw A53 data. + * @param size Size of the data array in bytes. + * + * @return Number of closed captions parsed on success, negative error code on failure. + * If no Closed Captions are parsed, *pbuf is untouched. + */ +int ff_parse_a53_cc(AVBufferRef **pbuf, const uint8_t *data, int size); + +#endif /* AVCODEC_ATSC_A53_H */ |