SingleChannelElement Struct Reference

Single Channel Element - used for both SCE and LFE elements. More...

#include <aac.h>

Collaboration diagram for SingleChannelElement:

Public Member Functions
	DECLARE_ALIGNED (32, float, coeffs)[1024]
	coefficients for IMDCT More...
	DECLARE_ALIGNED (32, float, saved)[1024]
	overlap More...
	DECLARE_ALIGNED (32, float, ret_buf)[2048]
	PCM output buffer. More...
	DECLARE_ALIGNED (16, float, ltp_state)[3072]
	time signal for LTP More...

Data Fields
IndividualChannelStream	ics
TemporalNoiseShaping	tns
Pulse	pulse
enum BandType	band_type [128]
	band types More...
int	band_type_run_end [120]
	band type run end points More...
float	sf [120]
	scalefactors More...
int	sf_idx [128]
	scalefactor indices (used by encoder) More...
uint8_t	zeroes [128]
	band is not coded (used by encoder) More...
PredictorState	predictor_state [MAX_PREDICTORS]
float *	ret
	PCM output. More...

Detailed Description

Single Channel Element - used for both SCE and LFE elements.

Definition at line 227 of file aac.h.

Member Function Documentation

SingleChannelElement::DECLARE_ALIGNED	(	32	,
		float	,
		coeffs
	)

coefficients for IMDCT

SingleChannelElement::DECLARE_ALIGNED	(	32	,
		float	,
		saved
	)

overlap

SingleChannelElement::DECLARE_ALIGNED	(	32	,
		float	,
		ret_buf
	)

PCM output buffer.

SingleChannelElement::DECLARE_ALIGNED	(	16	,
		float	,
		ltp_state
	)

time signal for LTP

Field Documentation

enum BandType SingleChannelElement::band_type[128]

band types

Definition at line 231 of file aac.h.

Referenced by apply_dependent_coupling(), apply_intensity_stereo(), apply_mid_side_stereo(), codebook_trellis_rate(), decode_cce(), decode_ics(), encode_spectral_coeffs(), encode_window_bands_info(), search_for_ms(), and search_for_quantizers_twoloop().

int SingleChannelElement::band_type_run_end[120]

band type run end points

Definition at line 232 of file aac.h.

Referenced by apply_intensity_stereo(), and decode_ics().

IndividualChannelStream SingleChannelElement::ics

Definition at line 228 of file aac.h.

Referenced by aac_encode_frame(), adjust_frame_information(), apply_dependent_coupling(), apply_intensity_stereo(), apply_ltp(), apply_mid_side_stereo(), apply_prediction(), apply_window_and_mdct(), codebook_trellis_rate(), decode_cce(), decode_cpe(), decode_ics(), decode_mid_side_stereo(), encode_band_info(), encode_individual_channel(), encode_ms_info(), encode_scale_factors(), encode_spectral_coeffs(), encode_window_bands_info(), imdct_and_windowing(), search_for_ms(), search_for_quantizers_anmr(), search_for_quantizers_faac(), search_for_quantizers_fast(), search_for_quantizers_twoloop(), spectral_to_sample(), and update_ltp().

PredictorState SingleChannelElement::predictor_state[MAX_PREDICTORS]

Definition at line 240 of file aac.h.

Referenced by apply_prediction().

Pulse SingleChannelElement::pulse

Definition at line 230 of file aac.h.

Referenced by adjust_frame_information(), and encode_individual_channel().

float* SingleChannelElement::ret

PCM output.

Definition at line 241 of file aac.h.

Referenced by apply_independent_coupling(), apply_ltp(), frame_configure_elements(), imdct_and_windowing(), spectral_to_sample(), and update_ltp().

float SingleChannelElement::sf[120]

scalefactors

Definition at line 233 of file aac.h.

Referenced by apply_intensity_stereo(), and decode_ics().

int SingleChannelElement::sf_idx[128]

scalefactor indices (used by encoder)

Definition at line 234 of file aac.h.

Referenced by codebook_trellis_rate(), encode_individual_channel(), encode_scale_factors(), encode_spectral_coeffs(), encode_window_bands_info(), search_for_ms(), search_for_quantizers_anmr(), search_for_quantizers_faac(), search_for_quantizers_fast(), and search_for_quantizers_twoloop().

TemporalNoiseShaping SingleChannelElement::tns

Definition at line 229 of file aac.h.

Referenced by apply_ltp(), decode_ics(), and spectral_to_sample().

uint8_t SingleChannelElement::zeroes[128]

band is not coded (used by encoder)

Definition at line 235 of file aac.h.

Referenced by adjust_frame_information(), codebook_trellis_rate(), encode_scale_factors(), encode_spectral_coeffs(), encode_window_bands_info(), search_for_ms(), search_for_quantizers_anmr(), search_for_quantizers_faac(), search_for_quantizers_fast(), and search_for_quantizers_twoloop().

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The documentation for this struct was generated from the following file:

• aac.h