mpegaudiodecheader.h File Reference

MPEG Audio header decoder. More...

#include <stdint.h>
#include "codec_id.h"

Go to the source code of this file.

Data Structures
struct	MPADecodeHeader

Macros
#define	MP3_MASK   0xFFFE0CCF
#define	MPA_DECODE_HEADER

Functions
int	avpriv_mpegaudio_decode_header (MPADecodeHeader *s, uint32_t header)
int	ff_mpa_decode_header (uint32_t head, int *sample_rate, int *channels, int *frame_size, int *bitrate, enum AVCodecID *codec_id)
static int	ff_mpa_check_header (uint32_t header)

Detailed Description

MPEG Audio header decoder.

Definition in file mpegaudiodecheader.h.

Macro Definition Documentation

MP3_MASK

#define MP3_MASK   0xFFFE0CCF

Definition at line 33 of file mpegaudiodecheader.h.

Referenced by mp3_read_header(), and mp3_read_probe().

MPA_DECODE_HEADER

#define MPA_DECODE_HEADER

Value:

    int frame_size; \
    int error_protection; \
    int layer; \
    int sample_rate; \
    int sample_rate_index; /* between 0 and 8 */ \
    int bit_rate; \
    int nb_channels; \
    int mode; \
    int mode_ext; \
    int lsf;

Definition at line 35 of file mpegaudiodecheader.h.

Function Documentation

avpriv_mpegaudio_decode_header()

int avpriv_mpegaudio_decode_header	(	MPADecodeHeader *	s,
		uint32_t	header )

Definition at line 34 of file mpegaudiodecheader.c.

Referenced by check(), decode_frame(), ff_mpa_decode_header(), libshine_encode_frame(), mp3_parse_vbr_tags(), mp3_read_probe(), mp3_write_audio_packet(), mp3_write_xing(), and mp3lame_encode_frame().

ff_mpa_decode_header()

int ff_mpa_decode_header	(	uint32_t	head,
		int *	sample_rate,
		int *	channels,
		int *	frame_size,
		int *	bitrate,
		enum AVCodecID *	codec_id )

Definition at line 120 of file mpegaudiodecheader.c.

Referenced by ffat_create_decoder(), and mpegaudio_parse().

ff_mpa_check_header()

static int ff_mpa_check_header ( uint32_t header )

inlinestatic

Definition at line 62 of file mpegaudiodecheader.h.

Referenced by avpriv_mpegaudio_decode_header(), check(), and mov_read_packet().