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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.
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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
50 #define VORBIS_FLAG_SETUP 0x00000004
53 * Get the duration for a Vorbis packet.
55 * If @p flags is @c NULL,
56 * special frames are considered invalid.
58 * @param s Vorbis parser context
59 * @param buf buffer containing a Vorbis frame
60 * @param buf_size size of the buffer
61 * @param flags flags for special frames
63 int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
64 int buf_size, int *flags);
67 * Get the duration for a Vorbis packet.
69 * @param s Vorbis parser context
70 * @param buf buffer containing a Vorbis frame
71 * @param buf_size size of the buffer
73 int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
76 void av_vorbis_parse_reset(AVVorbisParseContext *s);
78 #endif /* AVCODEC_VORBIS_PARSE_H */