libavformat/mp3dec.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "avformat.h"
#include "internal.h"
#include "id3v2.h"
#include "id3v1.h"
#include "libavcodec/mpegaudiodecheader.h"

Go to the source code of this file.

Data Structures
struct	MP3Context
Defines
#define	XING_FLAG_FRAMES   0x01
#define	XING_FLAG_SIZE   0x02
#define	XING_FLAG_TOC   0x04
#define	XING_TOC_COUNT   100
#define	MP3_PACKET_SIZE   1024
Functions
static int	mp3_read_probe (AVProbeData *p)
static void	read_xing_toc (AVFormatContext *s, int64_t filesize, int64_t duration)
static int	mp3_parse_vbr_tags (AVFormatContext *s, AVStream *st, int64_t base)
	Try to find Xing/Info/VBRI tags and compute duration from info therein.
static int	mp3_read_header (AVFormatContext *s)
static int	mp3_read_packet (AVFormatContext *s, AVPacket *pkt)
static int	mp3_seek (AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
Variables
AVInputFormat	ff_mp3_demuxer

---

Define Documentation

#define MP3_PACKET_SIZE   1024

Definition at line 223 of file mp3dec.c.

Referenced by mp3_read_packet().

#define XING_FLAG_FRAMES   0x01

Definition at line 32 of file mp3dec.c.

Referenced by mp3_parse_vbr_tags().

#define XING_FLAG_SIZE   0x02

Definition at line 33 of file mp3dec.c.

Referenced by mp3_parse_vbr_tags().

#define XING_FLAG_TOC   0x04

Definition at line 34 of file mp3dec.c.

Referenced by mp3_parse_vbr_tags().

#define XING_TOC_COUNT   100

Definition at line 36 of file mp3dec.c.

Referenced by read_xing_toc().

---

Function Documentation

static int mp3_parse_vbr_tags	(	AVFormatContext *	s,
		AVStream *	st,
		int64_t	base
	)			[static]

Try to find Xing/Info/VBRI tags and compute duration from info therein.

Definition at line 114 of file mp3dec.c.

Referenced by mp3_read_header().

static int mp3_read_header

(

AVFormatContext *

s

)

[static]

Definition at line 189 of file mp3dec.c.

static int mp3_read_packet	(	AVFormatContext *	s,
		AVPacket *	pkt
	)			[static]

Definition at line 225 of file mp3dec.c.

static int mp3_read_probe

(

AVProbeData *

p

)

[static]

Definition at line 47 of file mp3dec.c.

static int mp3_seek	(	AVFormatContext *	s,
		int	stream_index,
		int64_t	timestamp,
		int	flags
	)			[static]

Definition at line 256 of file mp3dec.c.

static void read_xing_toc	(	AVFormatContext *	s,
		int64_t	filesize,
		int64_t	duration
	)			[static]

Definition at line 89 of file mp3dec.c.

Referenced by mp3_parse_vbr_tags().

---

Variable Documentation

AVInputFormat ff_mp3_demuxer

Initial value:

 {
    .name           = "mp3",
    .long_name      = NULL_IF_CONFIG_SMALL("MP2/3 (MPEG audio layer 2/3)"),
    .priv_data_size = sizeof(MP3Context),
    .read_probe     = mp3_read_probe,
    .read_header    = mp3_read_header,
    .read_packet    = mp3_read_packet,
    .read_seek      = mp3_seek,
    .flags          = AVFMT_GENERIC_INDEX,
    .extensions     = "mp2,mp3,m2a", 
}

Definition at line 294 of file mp3dec.c.