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SBEncState Struct Reference
Data Fields

SBEncState Struct Reference

Structure representing the full state of the sub-band encoder. More...

#include <sb_celp.h>

Data Fields

const SpeexMode * mode
 Pointer to the mode (containing for vtable info)
void * st_low
 State of the low-band (narrowband) encoder.
int full_frame_size
 Length of full-band frames.
int frame_size
 Length of high-band frames.
int subframeSize
 Length of high-band sub-frames.
int nbSubframes
 Number of high-band sub-frames.
int windowSize
 Length of high-band LPC window.
int lpcSize
 Order of high-band LPC analysis.
int bufSize
 Buffer size.
int first
 First frame?
float lag_factor
 Lag-windowing control parameter.
spx_word16_t lpc_floor
 Controls LPC analysis noise floor.
spx_word16_t gamma1
 Perceptual weighting coef 1.
spx_word16_t gamma2
 Perceptual weighting coef 2.
char * stack
 Temporary allocation stack.
spx_word16_t * high
 High-band signal (buffer)
const spx_word16_t * window
 LPC analysis window.
spx_word16_t * lagWindow
 Auto-correlation window.
spx_lsp_t * old_lsp
 LSPs of previous frame.
spx_lsp_t * old_qlsp
 Quantized LSPs of previous frame.
spx_coef_t * interp_qlpc
 Interpolated quantized LPCs for current sub-frame.
spx_mem_t * mem_sp
 Synthesis signal memory.
spx_mem_t * mem_sw
 Perceptual signal memory.
spx_word16_t * innov_rms_save
 If non-NULL, innovation is copied here.
float vbr_quality
 Quality setting for VBR encoding.
int vbr_enabled
 1 for enabling VBR, 0 otherwise
spx_int32_t vbr_max
 Max bit-rate allowed in VBR mode (total)
spx_int32_t vbr_max_high
 Max bit-rate allowed in VBR mode for the high-band.
spx_int32_t abr_enabled
 ABR setting (in bps), 0 if off.
int vad_enabled
 1 for enabling VAD, 0 otherwise

Detailed Description

Structure representing the full state of the sub-band encoder.

Definition at line 44 of file sb_celp.h.

Field Documentation

spx_int32_t abr_enabled

ABR setting (in bps), 0 if off.

Definition at line 81 of file sb_celp.h.

int bufSize

Buffer size.

Definition at line 53 of file sb_celp.h.

int first

First frame?

Definition at line 54 of file sb_celp.h.

int frame_size

Length of high-band frames.

Definition at line 48 of file sb_celp.h.

int full_frame_size

Length of full-band frames.

Definition at line 47 of file sb_celp.h.

spx_word16_t gamma1

Perceptual weighting coef 1.

Definition at line 57 of file sb_celp.h.

spx_word16_t gamma2

Perceptual weighting coef 2.

Definition at line 58 of file sb_celp.h.

spx_word16_t* high

High-band signal (buffer)

Definition at line 61 of file sb_celp.h.

spx_word16_t* innov_rms_save

If non-NULL, innovation is copied here.

Definition at line 75 of file sb_celp.h.

spx_coef_t* interp_qlpc

Interpolated quantized LPCs for current sub-frame.

Definition at line 68 of file sb_celp.h.

float lag_factor

Lag-windowing control parameter.

Definition at line 55 of file sb_celp.h.

spx_word16_t* lagWindow

Auto-correlation window.

Definition at line 65 of file sb_celp.h.

spx_word16_t lpc_floor

Controls LPC analysis noise floor.

Definition at line 56 of file sb_celp.h.

int lpcSize

Order of high-band LPC analysis.

Definition at line 52 of file sb_celp.h.

spx_mem_t* mem_sp

Synthesis signal memory.

Definition at line 70 of file sb_celp.h.

spx_mem_t* mem_sw

Perceptual signal memory.

Definition at line 72 of file sb_celp.h.

const SpeexMode* mode

Pointer to the mode (containing for vtable info)

Definition at line 45 of file sb_celp.h.

int nbSubframes

Number of high-band sub-frames.

Definition at line 50 of file sb_celp.h.

spx_lsp_t* old_lsp

LSPs of previous frame.

Definition at line 66 of file sb_celp.h.

spx_lsp_t* old_qlsp

Quantized LSPs of previous frame.

Definition at line 67 of file sb_celp.h.

void* st_low

State of the low-band (narrowband) encoder.

Definition at line 46 of file sb_celp.h.

char* stack

Temporary allocation stack.

Definition at line 60 of file sb_celp.h.

int subframeSize

Length of high-band sub-frames.

Definition at line 49 of file sb_celp.h.

int vad_enabled

1 for enabling VAD, 0 otherwise

Definition at line 85 of file sb_celp.h.

int vbr_enabled

1 for enabling VBR, 0 otherwise

Definition at line 78 of file sb_celp.h.

spx_int32_t vbr_max

Max bit-rate allowed in VBR mode (total)

Definition at line 79 of file sb_celp.h.

spx_int32_t vbr_max_high

Max bit-rate allowed in VBR mode for the high-band.

Definition at line 80 of file sb_celp.h.

float vbr_quality

Quality setting for VBR encoding.

Definition at line 77 of file sb_celp.h.

const spx_word16_t* window

LPC analysis window.

Definition at line 64 of file sb_celp.h.

int windowSize

Length of high-band LPC window.

Definition at line 51 of file sb_celp.h.

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