From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- media/ffvpx/libavcodec/atsc_a53.h | 56 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 media/ffvpx/libavcodec/atsc_a53.h (limited to 'media/ffvpx/libavcodec/atsc_a53.h') 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 +#include + +#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 */ -- cgit v1.2.3