3 * This file is part of FFmpeg.
5 * FFmpeg is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * FFmpeg is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with FFmpeg; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 * A public API for Vorbis parsing
24 * Determines the duration for each packet.
27 #ifndef AVCODEC_VORBIS_PARSE_H
28 #define AVCODEC_VORBIS_PARSE_H
32 typedef struct AVVorbisParseContext AVVorbisParseContext
;
35 * Allocate and initialize the Vorbis parser using headers in the extradata.
37 * @param avctx codec context
38 * @param s Vorbis parser context
40 AVVorbisParseContext
*av_vorbis_parse_init(const uint8_t *extradata
,
44 * Free the parser and everything associated with it.
46 void av_vorbis_parse_free(AVVorbisParseContext
**s
);
48 #define VORBIS_FLAG_HEADER 0x00000001
49 #define VORBIS_FLAG_COMMENT 0x00000002
52 * Get the duration for a Vorbis packet.
54 * If @p flags is @c NULL,
55 * special frames are considered invalid.
57 * @param s Vorbis parser context
58 * @param buf buffer containing a Vorbis frame
59 * @param buf_size size of the buffer
60 * @param flags flags for special frames
62 int av_vorbis_parse_frame_flags(AVVorbisParseContext
*s
, const uint8_t *buf
,
63 int buf_size
, int *flags
);
66 * Get the duration for a Vorbis packet.
68 * @param s Vorbis parser context
69 * @param buf buffer containing a Vorbis frame
70 * @param buf_size size of the buffer
72 int av_vorbis_parse_frame(AVVorbisParseContext
*s
, const uint8_t *buf
,
75 void av_vorbis_parse_reset(AVVorbisParseContext
*s
);
77 #endif /* AVCODEC_VORBIS_PARSE_H */