| /* | |
| * Copyright (c) 2014 Tim Walker <[email protected]> | |
| * | |
| * 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 | |
| * internal header for HEVC (de)muxer utilities | |
| */ | |
| /** | |
| * Writes Annex B formatted HEVC NAL units to the provided AVIOContext. | |
| * | |
| * The NAL units are converted to an MP4-compatible format (start code prefixes | |
| * are replaced by 4-byte size fields, as per ISO/IEC 14496-15). | |
| * | |
| * If filter_ps is non-zero, any HEVC parameter sets found in the input will be | |
| * discarded, and *ps_count will be set to the number of discarded PS NAL units. | |
| * | |
| * @param pb address of the AVIOContext where the data shall be written | |
| * @param buf_in address of the buffer holding the input data | |
| * @param size size (in bytes) of the input buffer | |
| * @param filter_ps whether to write parameter set NAL units to the output (0) | |
| * or to discard them (non-zero) | |
| * @param ps_count address of the variable where the number of discarded | |
| * parameter set NAL units shall be written, may be NULL | |
| * @return the amount (in bytes) of data written in case of success, a negative | |
| * value corresponding to an AVERROR code in case of failure | |
| */ | |
| int ff_hevc_annexb2mp4(AVIOContext *pb, const uint8_t *buf_in, | |
| int size, int filter_ps, int *ps_count); | |
| /** | |
| * Writes Annex B formatted HEVC NAL units to a data buffer. | |
| * | |
| * The NAL units are converted to an MP4-compatible format (start code prefixes | |
| * are replaced by 4-byte size fields, as per ISO/IEC 14496-15). | |
| * | |
| * If filter_ps is non-zero, any HEVC parameter sets found in the input will be | |
| * discarded, and *ps_count will be set to the number of discarded PS NAL units. | |
| * | |
| * On success, *size holds the size (in bytes) of the output data buffer. | |
| * | |
| * @param buf_in address of the buffer holding the input data | |
| * @param size address of the variable holding the size (in bytes) of the input | |
| * buffer (on input) and of the output buffer (on success) | |
| * @param buf_out on success, address of the variable holding the address of | |
| * the output buffer | |
| * @param filter_ps whether to write parameter set NAL units to the output (0) | |
| * or to discard them (non-zero) | |
| * @param ps_count address of the variable where the number of discarded | |
| * parameter set NAL units shall be written, may be NULL | |
| * @return 0 in case of success, a negative value corresponding to an AVERROR | |
| * code in case of failure | |
| * @note *buf_out will be treated as uninitialized on input and won't be freed. | |
| */ | |
| int ff_hevc_annexb2mp4_buf(const uint8_t *buf_in, uint8_t **buf_out, | |
| int *size, int filter_ps, int *ps_count); | |
| /** | |
| * Writes HEVC extradata (parameter sets, declarative SEI NAL units) to the | |
| * provided AVIOContext. | |
| * | |
| * If the extradata is Annex B format, it gets converted to hvcC format before | |
| * writing. | |
| * | |
| * @param pb address of the AVIOContext where the hvcC shall be written | |
| * @param data address of the buffer holding the data needed to write the hvcC | |
| * @param size size (in bytes) of the data buffer | |
| * @param ps_array_completeness whether all parameter sets are in the hvcC (1) | |
| * or there may be additional parameter sets in the bitstream (0) | |
| * @return >=0 in case of success, a negative value corresponding to an AVERROR | |
| * code in case of failure | |
| */ | |
| int ff_isom_write_hvcc(AVIOContext *pb, const uint8_t *data, | |
| int size, int ps_array_completeness); | |