f97a523fb795fa2ec5a8dd16411286e8d94b0394
[libav.git] / libavcodec / vorbis_parser.h
1 /*
2 * This file is part of Libav.
3 *
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /**
20 * @file
21 * A public API for Vorbis parsing
22 *
23 * Determines the duration for each packet.
24 */
25
26 #ifndef AVCODEC_VORBIS_PARSE_H
27 #define AVCODEC_VORBIS_PARSE_H
28
29 #include <stdint.h>
30
31 typedef struct AVVorbisParseContext AVVorbisParseContext;
32
33 /**
34 * Allocate and initialize the Vorbis parser using headers in the extradata.
35 *
36 * @param avctx codec context
37 * @param s Vorbis parser context
38 */
39 AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
40 int extradata_size);
41
42 /**
43 * Free the parser and everything associated with it.
44 */
45 void av_vorbis_parse_free(AVVorbisParseContext **s);
46
47 /**
48 * Get the duration for a Vorbis packet.
49 *
50 * @param s Vorbis parser context
51 * @param buf buffer containing a Vorbis frame
52 * @param buf_size size of the buffer
53 */
54 int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
55 int buf_size);
56
57 void av_vorbis_parse_reset(AVVorbisParseContext *s);
58
59 #endif /* AVCODEC_VORBIS_PARSE_H */