AacPsyContext Struct Reference

3GPP TS26.403-inspired psychoacoustic model specific data More...

Data Fields
int	chan_bitrate
	bitrate per channel More...
int	frame_bits
	average bits per frame More...
int	fill_level
	bit reservoir fill level More...
struct {
float   min
	minimum allowed PE for bit factor calculation More...
float   max
	maximum allowed PE for bit factor calculation More...
float   previous
	allowed PE of the previous frame More...
float   correction
	PE correction factor. More...
}	pe
AacPsyCoeffs	psy_coef [2][64]
AacPsyChannel *	ch
float	global_quality
	normalized global quality taken from avctx More...

Detailed Description

3GPP TS26.403-inspired psychoacoustic model specific data

Definition at line 151 of file aacpsy.c.

Field Documentation

int AacPsyContext::chan_bitrate

bitrate per channel

Definition at line 152 of file aacpsy.c.

Referenced by psy_3gpp_init().

int AacPsyContext::frame_bits

average bits per frame

Definition at line 153 of file aacpsy.c.

Referenced by calc_bit_demand(), and psy_3gpp_init().

int AacPsyContext::fill_level

bit reservoir fill level

Definition at line 154 of file aacpsy.c.

Referenced by calc_bit_demand(), and psy_3gpp_init().

float AacPsyContext::min

minimum allowed PE for bit factor calculation

Definition at line 156 of file aacpsy.c.

Referenced by calc_bit_demand(), and psy_3gpp_init().

float AacPsyContext::max

maximum allowed PE for bit factor calculation

Definition at line 157 of file aacpsy.c.

Referenced by calc_bit_demand(), and psy_3gpp_init().

float AacPsyContext::previous

allowed PE of the previous frame

Definition at line 158 of file aacpsy.c.

float AacPsyContext::correction

PE correction factor.

Definition at line 159 of file aacpsy.c.

struct { ... } AacPsyContext::pe

Referenced by calc_bit_demand(), and psy_3gpp_init().

AacPsyCoeffs AacPsyContext::psy_coef[2][64]

Definition at line 161 of file aacpsy.c.

Referenced by psy_3gpp_init().

AacPsyChannel* AacPsyContext::ch

Definition at line 162 of file aacpsy.c.

Referenced by lame_window_init(), psy_3gpp_analyze_channel(), psy_3gpp_end(), psy_3gpp_init(), psy_3gpp_window(), and psy_lame_window().

float AacPsyContext::global_quality

normalized global quality taken from avctx

Definition at line 163 of file aacpsy.c.

Referenced by psy_3gpp_init().

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

• libavcodec/aacpsy.c