single/pair channel context for psychoacoustic model More...

Data Fields
AacPsyBand	band [128]
	bands information More...

AacPsyBand	prev_band [128]
	bands information from the previous frame More...

float	win_energy
	sliding average of channel energy More...

float	iir_state [2]
	hi-pass IIR filter state More...

uint8_t	next_grouping
	stored grouping scheme for the next frame (in case of 8 short window sequence) More...

enum WindowSequence	next_window_seq
	window sequence to be used in the next frame More...

float	attack_threshold
	attack threshold for this channel More...

float	prev_energy_subshort [AAC_NUM_BLOCKS_SHORT *PSY_LAME_NUM_SUBBLOCKS]

int	prev_attack
	attack value for the last short block in the previous sequence More...

Detailed Description

single/pair channel context for psychoacoustic model

Definition at line 124 of file aacpsy.c.

Field Documentation

◆ band

AacPsyBand AacPsyChannel::band[128]

bands information

Definition at line 125 of file aacpsy.c.

Referenced by calc_thr_3gpp().

◆ prev_band

AacPsyBand AacPsyChannel::prev_band[128]

bands information from the previous frame

Definition at line 126 of file aacpsy.c.

◆ win_energy

float AacPsyChannel::win_energy

sliding average of channel energy

Definition at line 128 of file aacpsy.c.

◆ iir_state

float AacPsyChannel::iir_state[2]

hi-pass IIR filter state

Definition at line 129 of file aacpsy.c.

◆ next_grouping

uint8_t AacPsyChannel::next_grouping

stored grouping scheme for the next frame (in case of 8 short window sequence)

Definition at line 130 of file aacpsy.c.

◆ next_window_seq

enum WindowSequence AacPsyChannel::next_window_seq

window sequence to be used in the next frame

Definition at line 131 of file aacpsy.c.

Referenced by psy_3gpp_window().

◆ attack_threshold

float AacPsyChannel::attack_threshold

attack threshold for this channel

Definition at line 133 of file aacpsy.c.

Referenced by lame_window_init().

◆ prev_energy_subshort

float AacPsyChannel::prev_energy_subshort[AAC_NUM_BLOCKS_SHORT *PSY_LAME_NUM_SUBBLOCKS]

Definition at line 134 of file aacpsy.c.

Referenced by lame_window_init().

◆ prev_attack

int AacPsyChannel::prev_attack

attack value for the last short block in the previous sequence

Definition at line 135 of file aacpsy.c.

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

libavcodec/aacpsy.c

Data Fields