1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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_PARSER_H
27 #define AVCODEC_VORBIS_PARSER_H
28
29 #include <stdint.h>
30
32
33 /**
34 * Allocate and initialize the Vorbis parser using headers in the extradata.
35 */
37 int extradata_size);
38
39 /**
40 * Free the parser and everything associated with it.
41 */
43
44 #define VORBIS_FLAG_HEADER 0x00000001
45 #define VORBIS_FLAG_COMMENT 0x00000002
46 #define VORBIS_FLAG_SETUP 0x00000004
47
48 /**
49 * Get the duration for a Vorbis packet.
50 *
51 * If @p flags is @c NULL,
52 * special frames are considered invalid.
53 *
54 * @param s Vorbis parser context
55 * @param buf buffer containing a Vorbis frame
56 * @param buf_size size of the buffer
57 * @param flags flags for special frames
58 */
60 int buf_size,
int *
flags);
61
62 /**
63 * Get the duration for a Vorbis packet.
64 *
65 * @param s Vorbis parser context
66 * @param buf buffer containing a Vorbis frame
67 * @param buf_size size of the buffer
68 */
70 int buf_size);
71
73
74 #endif /* AVCODEC_VORBIS_PARSER_H */