QCELPFrame Struct Reference

QCELP unpacked data frame. More...

#include <qcelpdata.h>

Data Fields
uint8_t	lspv [10]
	line spectral pair frequencies (LSP) for RATE_OCTAVE, line spectral pair frequencies grouped into five vectors of dimension two (LSPV) for other rates
uint8_t	reserved
	reserved bits only present in bitrate 1, 1/4 and 1/8 packets
QCELP excitation codebook parameters
uint8_t	cbsign [16]
	sign of the codebook gain for each codebook subframe
uint8_t	cbgain [16]
	unsigned codebook gain for each codebook subframe
uint8_t	cindex [16]
	codebook index for each codebook subframe
QCELP pitch prediction parameters
uint8_t	plag [4]
	pitch lag for each pitch subframe
uint8_t	pfrac [4]
	fractional pitch lag for each pitch subframe
uint8_t	pgain [4]
	pitch gain for each pitch subframe

Detailed Description

QCELP unpacked data frame.

Definition at line 40 of file qcelpdata.h.

Field Documentation

uint8_t QCELPFrame::cbsign[16]

sign of the codebook gain for each codebook subframe

Definition at line 43 of file qcelpdata.h.

Referenced by decode_gain_and_index().

uint8_t QCELPFrame::cbgain[16]

unsigned codebook gain for each codebook subframe

Definition at line 44 of file qcelpdata.h.

Referenced by decode_gain_and_index(), and qcelp_decode_frame().

uint8_t QCELPFrame::cindex[16]

codebook index for each codebook subframe

Definition at line 45 of file qcelpdata.h.

Referenced by compute_svector(), and decode_gain_and_index().

uint8_t QCELPFrame::plag[4]

pitch lag for each pitch subframe

Definition at line 50 of file qcelpdata.h.

Referenced by apply_pitch_filters(), and qcelp_decode_frame().

uint8_t QCELPFrame::pfrac[4]

fractional pitch lag for each pitch subframe

Definition at line 51 of file qcelpdata.h.

Referenced by apply_pitch_filters(), and qcelp_decode_frame().

uint8_t QCELPFrame::pgain[4]

pitch gain for each pitch subframe

Definition at line 52 of file qcelpdata.h.

Referenced by apply_pitch_filters().

uint8_t QCELPFrame::lspv[10]

line spectral pair frequencies (LSP) for RATE_OCTAVE, line spectral pair frequencies grouped into five vectors of dimension two (LSPV) for other rates

Definition at line 60 of file qcelpdata.h.

Referenced by compute_svector(), and decode_lspf().

uint8_t QCELPFrame::reserved

reserved bits only present in bitrate 1, 1/4 and 1/8 packets

Definition at line 65 of file qcelpdata.h.

Referenced by qcelp_decode_frame().

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

• libavcodec/qcelpdata.h