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DecState Struct Reference

#include <nb_celp.h>

List of all members.

Public Attributes
SpeexMode *	mode
int	first
int	count_lost
int	frameSize
int	subframeSize
int	nbSubframes
int	windowSize
int	lpcSize
int	bufSize
int	min_pitch
int	max_pitch
int	sampling_rate
float	last_ol_gain
float	gamma1
float	gamma2
float	preemph
float	pre_mem
char *	stack
float *	inBuf
float *	frame
float *	excBuf
float *	exc
float *	innov
float *	qlsp
float *	old_qlsp
float *	interp_qlsp
float *	interp_qlpc
float *	mem_sp
float *	pi_gain
int	last_pitch
float	last_pitch_gain
float	pitch_gain_buf [3]
int	pitch_gain_buf_idx
SpeexSubmode **	submodes
int	submodeID
int	lpc_enh_enabled
CombFilterMem *	comb_mem
SpeexCallback	speex_callbacks [SPEEX_MAX_CALLBACKS]
SpeexCallback	user_callback
float	voc_m1
float	voc_m2
float	voc_mean
int	voc_offset
int	dtx_enabled

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Detailed Description

Structure representing the full state of the narrowband decoder

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Member Data Documentation

int DecState::bufSize

Buffer size

CombFilterMem* DecState::comb_mem

int DecState::count_lost

Was the last frame lost?

int DecState::dtx_enabled

float* DecState::exc

Start of excitation frame

float* DecState::excBuf

Excitation buffer

int DecState::first

Is this the first frame?

float* DecState::frame

Start of original frame

int DecState::frameSize

Size of frames

float DecState::gamma1

Perceptual filter: A(z/gamma1)

float DecState::gamma2

Perceptual filter: A(z/gamma2)

float* DecState::inBuf

Input buffer (original signal)

float* DecState::innov

Innovation for the frame

float* DecState::interp_qlpc

Interpolated quantized LPCs

float* DecState::interp_qlsp

Interpolated quantized LSPs

float DecState::last_ol_gain

Open-loop gain for previous frame

int DecState::last_pitch

Pitch of last correctly decoded frame

float DecState::last_pitch_gain

Pitch gain of last correctly decoded frame

int DecState::lpc_enh_enabled

1 when LPC enhancer is on, 0 otherwise

int DecState::lpcSize

LPC order

int DecState::max_pitch

Maximum pitch value allowed

float* DecState::mem_sp

Filter memory for synthesis signal

int DecState::min_pitch

Minimum pitch value allowed

SpeexMode* DecState::mode

Mode corresponding to the state

int DecState::nbSubframes

Number of sub-frames

float* DecState::old_qlsp

Quantized LSPs for previous frame

float* DecState::pi_gain

Gain of LPC filter at theta=pi (fe/2)

float DecState::pitch_gain_buf[3]

Pitch gain of last decoded frames

int DecState::pitch_gain_buf_idx

Tail of the buffer

float DecState::pre_mem

1-element memory for pre-emphasis

float DecState::preemph

Pre-emphasis: P(z) = 1 - a*z^-1

float* DecState::qlsp

Quantized LSPs for current frame

int DecState::sampling_rate

SpeexCallback DecState::speex_callbacks[SPEEX_MAX_CALLBACKS]

char* DecState::stack

Pseudo-stack allocation for temporary memory

int DecState::subframeSize

Size of sub-frames

int DecState::submodeID

Activated sub-mode

SpeexSubmode** DecState::submodes

Sub-mode data

SpeexCallback DecState::user_callback

float DecState::voc_m1

float DecState::voc_m2

float DecState::voc_mean

int DecState::voc_offset

int DecState::windowSize

Analysis (LPC) window length

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

• nb_celp.h

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