#include "aacdec.h"
#include "libavcodec/lpc_functions.h"
#include "libavcodec/aactab.h"

Macros
#define	SET(member)

Functions
static void AAC_RENAME	dequant_scalefactors (SingleChannelElement *sce)
	Convert integer scalefactors to the decoder's native expected scalefactor values.

static void AAC_RENAME	apply_mid_side_stereo (AACDecContext ac, ChannelElement cpe)
	Mid/Side stereo decoding; reference: 4.6.8.1.3.

static void AAC_RENAME	apply_intensity_stereo (AACDecContext ac, ChannelElement cpe, int ms_present)
	intensity stereo decoding; reference: 4.6.8.2.3

static void AAC_RENAME	apply_tns (void _coef_param, TemporalNoiseShaping tns, IndividualChannelStream *ics, int decode)
	Decode Temporal Noise Shaping filter coefficients and apply all-pole filters; reference: 4.6.9.3.

static void AAC_RENAME	windowing_and_mdct_ltp (AACDecContext ac, INTFLOAT out, INTFLOAT in, IndividualChannelStream ics)
	Apply windowing and MDCT to obtain the spectral coefficient from the predicted sample by LTP.

static void AAC_RENAME	apply_ltp (AACDecContext ac, SingleChannelElement sce)
	Apply the long term prediction.

static void AAC_RENAME	update_ltp (AACDecContext ac, SingleChannelElement sce)
	Update the LTP buffer for next frame.

static void AAC_RENAME	imdct_and_windowing (AACDecContext ac, SingleChannelElement sce)
	Conduct IMDCT and windowing.

static void AAC_RENAME	imdct_and_windowing_768 (AACDecContext ac, SingleChannelElement sce)
	Conduct IMDCT and windowing for 768-point frames.

static void AAC_RENAME	imdct_and_windowing_960 (AACDecContext ac, SingleChannelElement sce)
	Conduct IMDCT and windowing.

static void AAC_RENAME	imdct_and_windowing_ld (AACDecContext ac, SingleChannelElement sce)

static void AAC_RENAME	imdct_and_windowing_eld (AACDecContext ac, SingleChannelElement sce)

static void AAC_RENAME	clip_output (AACDecContext ac, ChannelElement che, int type, int samples)

static void	reset_all_predictors (PredictorState *ps)

static void	reset_predictor_group (PredictorState *ps, int group_num)

static void AAC_RENAME	apply_prediction (AACDecContext ac, SingleChannelElement sce)
	Apply AAC-Main style frequency domain prediction.

static av_cold void AAC_RENAME	aac_dsp_init (AACDecDSP *aac_dsp)

Macro Definition Documentation

◆ SET

#define SET ( member )

Value:

aac_dsp->member = AAC_RENAME(member)

AAC_RENAME

#define AAC_RENAME(x)

Definition aac_defines.h:99

Referenced by aac_dsp_init().

Function Documentation

◆ dequant_scalefactors()

static void AAC_RENAME dequant_scalefactors ( SingleChannelElement * sce )

static

Convert integer scalefactors to the decoder's native expected scalefactor values.

Definition at line 41 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and dequant_scalefactors().

◆ apply_mid_side_stereo()

static void AAC_RENAME apply_mid_side_stereo	(	AACDecContext *	ac,
		ChannelElement *	cpe )

static

Mid/Side stereo decoding; reference: 4.6.8.1.3.

Definition at line 84 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and apply_mid_side_stereo().

◆ apply_intensity_stereo()

static void AAC_RENAME apply_intensity_stereo	(	AACDecContext *	ac,
		ChannelElement *	cpe,
		int	ms_present )

static

intensity stereo decoding; reference: 4.6.8.2.3

Parameters

ms_present Indicates mid/side stereo presence. [0] mask is all 0s; [1] mask is decoded from bitstream; [2] mask is all 1s; [3] reserved for scalable AAC

Definition at line 120 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and apply_intensity_stereo().

◆ apply_tns()

static void AAC_RENAME apply_tns	(	void *	_coef_param,
		TemporalNoiseShaping *	tns,
		IndividualChannelStream *	ics,
		int	decode )

static

Decode Temporal Noise Shaping filter coefficients and apply all-pole filters; reference: 4.6.9.3.

Parameters

decode	1 if tool is used normally, 0 if tool is used in LTP.
coef	spectral coefficients

Definition at line 164 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), apply_ltp(), and apply_tns().

◆ windowing_and_mdct_ltp()

static void AAC_RENAME windowing_and_mdct_ltp	(	AACDecContext *	ac,
		INTFLOAT *	out,
		INTFLOAT *	in,
		IndividualChannelStream *	ics )

inlinestatic

Apply windowing and MDCT to obtain the spectral coefficient from the predicted sample by LTP.

Definition at line 225 of file aacdec_dsp_template.c.

Referenced by apply_ltp(), and windowing_and_mdct_ltp().

◆ apply_ltp()

static void AAC_RENAME apply_ltp	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Apply the long term prediction.

Definition at line 252 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and apply_ltp().

◆ update_ltp()

static void AAC_RENAME update_ltp	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Update the LTP buffer for next frame.

Definition at line 284 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and update_ltp().

◆ imdct_and_windowing()

static void AAC_RENAME imdct_and_windowing	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Conduct IMDCT and windowing.

Definition at line 325 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and imdct_and_windowing().

◆ imdct_and_windowing_768()

static void AAC_RENAME imdct_and_windowing_768	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Conduct IMDCT and windowing for 768-point frames.

Definition at line 389 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and imdct_and_windowing_768().

◆ imdct_and_windowing_960()

static void AAC_RENAME imdct_and_windowing_960	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Conduct IMDCT and windowing.

Definition at line 454 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and imdct_and_windowing_960().

◆ imdct_and_windowing_ld()

static void AAC_RENAME imdct_and_windowing_ld	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Definition at line 516 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and imdct_and_windowing_ld().

◆ imdct_and_windowing_eld()

static void AAC_RENAME imdct_and_windowing_eld	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Definition at line 541 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and imdct_and_windowing_eld().

◆ clip_output()

static void AAC_RENAME clip_output	(	AACDecContext *	ac,
		ChannelElement *	che,
		int	type,
		int	samples )

static

Definition at line 604 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and clip_output().

◆ reset_all_predictors()

static void reset_all_predictors ( PredictorState * ps )

inlinestatic

Definition at line 619 of file aacdec_dsp_template.c.

Referenced by apply_prediction().

◆ reset_predictor_group()

static void reset_predictor_group	(	PredictorState *	ps,
		int	group_num )

inlinestatic

Definition at line 626 of file aacdec_dsp_template.c.

Referenced by apply_prediction().

◆ apply_prediction()

static void AAC_RENAME apply_prediction	(	AACDecContext *	ac,
		SingleChannelElement *	sce )

static

Apply AAC-Main style frequency domain prediction.

Definition at line 636 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and apply_prediction().

◆ aac_dsp_init()

static av_cold void AAC_RENAME aac_dsp_init ( AACDecDSP * aac_dsp )

static

Definition at line 665 of file aacdec_dsp_template.c.

Referenced by aac_dsp_init(), and ff_aac_decode_init_float().

Macros

Functions

Macro Definition Documentation

◆ SET

Function Documentation

◆ dequant_scalefactors()

◆ apply_mid_side_stereo()

◆ apply_intensity_stereo()

◆ apply_tns()

◆ windowing_and_mdct_ltp()

◆ apply_ltp()

◆ update_ltp()

◆ imdct_and_windowing()

◆ imdct_and_windowing_768()

◆ imdct_and_windowing_960()

◆ imdct_and_windowing_ld()

◆ imdct_and_windowing_eld()

◆ clip_output()

◆ reset_all_predictors()

◆ reset_predictor_group()

◆ apply_prediction()

◆ aac_dsp_init()