aacsbr_template.c File Reference

AAC Spectral Band Replication decoding functions. More...

#include "libavutil/qsort.h"

Functions
av_cold void AAC_RENAME()	ff_aac_sbr_init (void)
	Initialize SBR. More...
av_cold void AAC_RENAME()	ff_aac_sbr_ctx_init (AACContext *ac, SpectralBandReplication *sbr, int id_aac)
	Initialize one SBR context. More...
av_cold void AAC_RENAME()	ff_aac_sbr_ctx_close (SpectralBandReplication *sbr)
	Close one SBR context. More...
int AAC_RENAME()	ff_decode_sbr_extension (AACContext *ac, SpectralBandReplication *sbr, GetBitContext *gb_host, int crc, int cnt, int id_aac)
	Decode Spectral Band Replication extension data; reference: table 4.55. More...
void AAC_RENAME()	ff_sbr_apply (AACContext *ac, SpectralBandReplication *sbr, int id_aac, INTFLOAT *L, INTFLOAT *R)
	Apply one SBR element to one AAC element. More...

Detailed Description

AAC Spectral Band Replication decoding functions.

Author

Robert Swain ( rob opendot cl )

Stanislav Ocovaj ( stani.nosp@m.slav.nosp@m..ocov.nosp@m.aj@i.nosp@m.mgtec.nosp@m..com )

Zoran Basaric ( zoran.nosp@m..bas.nosp@m.aric@.nosp@m.imgt.nosp@m.ec.co.nosp@m.m )

Function Documentation

ff_aac_sbr_ctx_close()

av_cold void AAC_RENAME() ff_aac_sbr_ctx_close

(

SpectralBandReplication *

sbr

)

Close one SBR context.

ff_aac_sbr_ctx_init()

av_cold void AAC_RENAME() ff_aac_sbr_ctx_init	(	AACContext *	ac,
		SpectralBandReplication *	sbr,
		int	id_aac
	)

Initialize one SBR context.

ff_aac_sbr_init()

av_cold void AAC_RENAME() ff_aac_sbr_init

(

void

)

Initialize SBR.

ff_decode_sbr_extension()

int AAC_RENAME() ff_decode_sbr_extension	(	AACContext *	ac,
		SpectralBandReplication *	sbr,
		GetBitContext *	gb_host,
		int	crc,
		int	cnt,
		int	id_aac
	)

Decode Spectral Band Replication extension data; reference: table 4.55.

Decode one SBR element.

Parameters

crc	flag indicating the presence of CRC checksum
cnt	length of TYPE_FIL syntactic element in bytes

Returns

Returns number of bytes consumed from the TYPE_FIL element.

ff_sbr_apply()

void AAC_RENAME() ff_sbr_apply	(	AACContext *	ac,
		SpectralBandReplication *	sbr,
		int	id_aac,
		INTFLOAT *	L,
		INTFLOAT *	R
	)

Apply one SBR element to one AAC element.