vorbis_parser.c File Reference

Vorbis audio parser. More...

#include "get_bits.h"
#include "parser.h"
#include "xiph.h"
#include "vorbis_parser.h"

Go to the source code of this file.

Functions
static int	parse_id_header (AVCodecContext *avctx, VorbisParseContext *s, const uint8_t *buf, int buf_size)
static int	parse_setup_header (AVCodecContext *avctx, VorbisParseContext *s, const uint8_t *buf, int buf_size)
int	avpriv_vorbis_parse_extradata (AVCodecContext *avctx, VorbisParseContext *s)
	Initialize the Vorbis parser using headers in the extradata.
int	avpriv_vorbis_parse_frame_flags (VorbisParseContext *s, const uint8_t *buf, int buf_size, int *flags)
	Get the duration for a Vorbis packet.
int	avpriv_vorbis_parse_frame (VorbisParseContext *s, const uint8_t *buf, int buf_size)
	Get the duration for a Vorbis packet.
void	avpriv_vorbis_parse_reset (VorbisParseContext *s)

Detailed Description

Vorbis audio parser.

Determines the duration for each packet.

Definition in file vorbis_parser.c.

Function Documentation

static int parse_id_header ( AVCodecContext *  avctx, VorbisParseContext *  s, const uint8_t *  buf, int  buf_size  )

static

Definition at line 33 of file vorbis_parser.c.

Referenced by avpriv_vorbis_parse_extradata().

static int parse_setup_header ( AVCodecContext *  avctx, VorbisParseContext *  s, const uint8_t *  buf, int  buf_size  )

static

Definition at line 65 of file vorbis_parser.c.

Referenced by avpriv_vorbis_parse_extradata().

int avpriv_vorbis_parse_extradata	(	AVCodecContext *	avctx,
		VorbisParseContext *	s
	)

Initialize the Vorbis parser using headers in the extradata.

Parameters

avctx	codec context
s	Vorbis parser context

Definition at line 176 of file vorbis_parser.c.

Referenced by libvorbis_encode_init(), and vorbis_header().

int avpriv_vorbis_parse_frame_flags	(	VorbisParseContext *	s,
		const uint8_t *	buf,
		int	buf_size,
		int *	flags
	)

Get the duration for a Vorbis packet.

avpriv_vorbis_parse_extradata() must have been successfully called prior to this in order for a correct duration to be returned. If flags is NULL, special frames are considered invalid.

Parameters

s	Vorbis parser context
buf	buffer containing a Vorbis frame
buf_size	size of the buffer
flags	flags for special frames

Definition at line 204 of file vorbis_parser.c.

Referenced by avpriv_vorbis_parse_frame(), and vorbis_packet().

int avpriv_vorbis_parse_frame	(	VorbisParseContext *	s,
		const uint8_t *	buf,
		int	buf_size
	)

Get the duration for a Vorbis packet.

avpriv_vorbis_parse_extradata() must have been successfully called prior to this in order for a correct duration to be returned.

Parameters

s	Vorbis parser context
buf	buffer containing a Vorbis frame
buf_size	size of the buffer

Definition at line 253 of file vorbis_parser.c.

Referenced by libvorbis_encode_frame().

void avpriv_vorbis_parse_reset

(

VorbisParseContext *

s

)

Definition at line 259 of file vorbis_parser.c.

Referenced by vorbis_packet().