libavcodec/mpegaudiodecheader.h File Reference

MPEG Audio header decoder. More...

#include "avcodec.h"

Go to the source code of this file.

Data Structures
struct	MPADecodeHeader
Defines
#define	MP3_MASK   0xFFFE0CCF
#define	MPA_DECODE_HEADER
Functions
int	avpriv_mpegaudio_decode_header (MPADecodeHeader *s, uint32_t header)
int	avpriv_mpa_decode_header (AVCodecContext *avctx, uint32_t head, int *sample_rate, int *channels, int *frame_size, int *bitrate)
static int	ff_mpa_check_header (uint32_t header)

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Detailed Description

MPEG Audio header decoder.

Definition in file mpegaudiodecheader.h.

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Define Documentation

#define MP3_MASK   0xFFFE0CCF

Definition at line 32 of file mpegaudiodecheader.h.

Referenced by mp3_header_compress(), and mp3_header_decompress().

#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 34 of file mpegaudiodecheader.h.

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Function Documentation

int avpriv_mpa_decode_header	(	AVCodecContext *	avctx,
		uint32_t	head,
		int *	sample_rate,
		int *	channels,
		int *	frame_size,
		int *	bitrate
	)

Definition at line 112 of file mpegaudiodecheader.c.

Referenced by mp3_read_probe(), and mpegaudio_parse().

int avpriv_mpegaudio_decode_header	(	MPADecodeHeader *	s,
		uint32_t	header
	)

Definition at line 34 of file mpegaudiodecheader.c.

Referenced by avpriv_mpa_decode_header(), decode_frame(), mp3_parse_vbr_tags(), mp3_write_packet_internal(), mp3_write_xing(), and mp3lame_encode_frame().

static int ff_mpa_check_header

(

uint32_t

header

)

[inline, static]

Definition at line 60 of file mpegaudiodecheader.h.

Referenced by avpriv_mpa_decode_header(), decode_frame(), mp3_header_compress(), mp3_header_decompress(), and mp3_parse_vbr_tags().