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