FFmpeg: QCELPFrame Struct Reference

FFmpeg

QCELPFrame Struct Reference

QCELP unpacked data frame. More...

#include <qcelpdata.h>

Data Fields

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().

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

libavcodec/qcelpdata.h

Generated on Sun Mar 8 2015 02:35:42 for FFmpeg by doxygen 1.8.2