FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
vorbis_parser.h
Go to the documentation of this file.
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  *
36  * @param avctx codec context
37  * @param s Vorbis parser context
38  */
40  int extradata_size);
41 
42 /**
43  * Free the parser and everything associated with it.
44  */
46 
47 #define VORBIS_FLAG_HEADER 0x00000001
48 #define VORBIS_FLAG_COMMENT 0x00000002
49 #define VORBIS_FLAG_SETUP 0x00000004
50 
51 /**
52  * Get the duration for a Vorbis packet.
53  *
54  * If @p flags is @c NULL,
55  * special frames are considered invalid.
56  *
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
61  */
63  int buf_size, int *flags);
64 
65 /**
66  * Get the duration for a Vorbis packet.
67  *
68  * @param s Vorbis parser context
69  * @param buf buffer containing a Vorbis frame
70  * @param buf_size size of the buffer
71  */
73  int buf_size);
74 
76 
77 #endif /* AVCODEC_VORBIS_PARSER_H */
const char * s
Definition: avisynth_c.h:631
AVVorbisParseContext * av_vorbis_parse_init(const uint8_t *extradata, int extradata_size)
Allocate and initialize the Vorbis parser using headers in the extradata.
uint8_t
int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf, int buf_size, int *flags)
Get the duration for a Vorbis packet.
void av_vorbis_parse_free(AVVorbisParseContext **s)
Free the parser and everything associated with it.
void * buf
Definition: avisynth_c.h:553
void av_vorbis_parse_reset(AVVorbisParseContext *s)
static int flags
Definition: cpu.c:47
int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf, int buf_size)
Get the duration for a Vorbis packet.