2 * AV1 helper functions for muxers
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef AVFORMAT_AV1_H
22 #define AVFORMAT_AV1_H
29 * Filter out AV1 OBUs not meant to be present in ISOBMFF sample data and write
30 * the resulting bitstream to the provided AVIOContext.
32 * @param pb pointer to the AVIOContext where the filtered bitstream shall be
34 * @param buf input data buffer
35 * @param size size of the input data buffer
37 * @return the amount of bytes written in case of success, a negative AVERROR
38 * code in case of failure
40 int ff_av1_filter_obus(AVIOContext *pb, const uint8_t *buf, int size);
43 * Filter out AV1 OBUs not meant to be present in ISOBMFF sample data and write
44 * the resulting bitstream to a newly allocated data buffer.
46 * @param pb pointer to the AVIOContext where the filtered bitstream shall be
48 * @param buf input data buffer
49 * @param out pointer to pointer that will hold the allocated data buffer
50 * @param size size of the input data buffer. The size of the resulting output
51 data buffer will be written here
53 * @return the amount of bytes written in case of success, a negative AVERROR
54 * code in case of failure. On failure, out and size are unchanged
56 int ff_av1_filter_obus_buf(const uint8_t *buf, uint8_t **out, int *size);
59 * Writes AV1 extradata (Sequence Header and Metadata OBUs) to the provided
62 * @param pb pointer to the AVIOContext where the hvcC shall be written
63 * @param buf input data buffer
64 * @param size size in bytes of the input data buffer
66 * @return >= 0 in case of success, a negative AVERROR code in case of failure
68 int ff_isom_write_av1c(AVIOContext *pb, const uint8_t *buf, int size);
70 #endif /* AVFORMAT_AV1_H */