mpegaudio.h File Reference

---

Detailed Description

mpeg audio declarations for both encoder and decoder.

Definition in file mpegaudio.h.

Go to the source code of this file.

Classes
struct	MPADecodeContext
struct	HuffTable
Typedefs
typedef int32_t	OUT_INT
typedef int16_t	MPA_INT
Functions
int	ff_mpa_l2_select_table (int bitrate, int nb_channels, int freq, int lsf)
int	ff_mpa_decode_header (AVCodecContext *avctx, uint32_t head, int *sample_rate)
void	ff_mpa_synth_init (MPA_INT *window)
void	ff_mpa_synth_filter (MPA_INT *synth_buf_ptr, int *synth_buf_offset, MPA_INT *window, int *dither_state, OUT_INT *samples, int incr, int32_t sb_samples[SBLIMIT])
static int	ff_mpa_check_header (uint32_t header)

---

Typedef Documentation

typedef int16_t OUT_INT

Definition at line 70 of file mpegaudio.h.

typedef int32_t MPA_INT

Definition at line 82 of file mpegaudio.h.

---

Function Documentation

int ff_mpa_l2_select_table	(	int	bitrate,
		int	nb_channels,
		int	freq,
		int	lsf
	)

Definition at line 31 of file mpegaudio.c.

Referenced by mp_decode_layer2(), and MPA_encode_init().

int ff_mpa_decode_header	(	AVCodecContext *	avctx,
		uint32_t	head,
		int *	sample_rate
	)

Definition at line 47 of file mpegaudio_parser.c.

Referenced by mp3_read_probe(), and mpegaudio_parse().

void ff_mpa_synth_init

(

MPA_INT *

window

)

Definition at line 774 of file mpegaudiodec.c.

Referenced by decode_init(), ff_mpc_init(), and qdm2_init().

void ff_mpa_synth_filter	(	MPA_INT *	synth_buf_ptr,
		int *	synth_buf_offset,
		MPA_INT *	window,
		int *	dither_state,
		OUT_INT *	samples,
		int	incr,
		int32_t	sb_samples[SBLIMIT]
	)

Definition at line 796 of file mpegaudiodec.c.

Referenced by mp_decode_frame(), mpc_synth(), and qdm2_synthesis_filter().

static int ff_mpa_check_header

(

uint32_t

header

)

[inline, static]

Definition at line 139 of file mpegaudio.h.

Referenced by decode_frame(), decode_frame_adu(), decode_frame_mp3on4(), ff_mpa_decode_header(), mp3_header_compress(), mp3_header_decompress(), and mp3_parse_vbr_tags().