Globally rename the header inclusion guard names.
[libav.git] / libavcodec / mpeg4audio.h
1 /*
2 * MPEG-4 Audio common header
3 * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@free.fr>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #ifndef AVCODEC_MPEG4AUDIO_H
23 #define AVCODEC_MPEG4AUDIO_H
24
25 #include <stdint.h>
26
27 typedef struct {
28 int object_type;
29 int sampling_index;
30 int sample_rate;
31 int chan_config;
32 int sbr; //< -1 implicit, 1 presence
33 int ext_object_type;
34 int ext_sampling_index;
35 int ext_sample_rate;
36 } MPEG4AudioConfig;
37
38 extern const int ff_mpeg4audio_sample_rates[16];
39 extern const uint8_t ff_mpeg4audio_channels[8];
40 /**
41 * Parse MPEG-4 systems extradata to retrieve audio configuration.
42 * @param[in] c MPEG4AudioConfig structure to fill.
43 * @param[in] buf Extradata from container.
44 * @param[in] buf_size Extradata size.
45 * @return On error -1 is returned, on success AudioSpecificConfig bit index in extradata.
46 */
47 int ff_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf, int buf_size);
48
49 #endif /* AVCODEC_MPEG4AUDIO_H */