entropy_coding.c File Reference

#include "entropy_coding.h"
#include "settings.h"
#include "arith_routines.h"
#include "signal_processing_library.h"
#include "spectrum_ar_model_tables.h"
#include "lpc_tables.h"
#include "pitch_gain_tables.h"
#include "pitch_lag_tables.h"
#include "encode_lpc_swb.h"
#include "lpc_shape_swb12_tables.h"
#include "lpc_shape_swb16_tables.h"
#include "lpc_gain_swb_tables.h"
#include "os_specific_inline.h"
#include <math.h>
#include <string.h>

Macros
#define	MAX_ORDER   100

Functions
int	WebRtcIsac_DecodeSpec (Bitstr *streamdata, int16_t AvgPitchGain_Q12, enum ISACBand band, double *fr, double *fi)
int	WebRtcIsac_EncodeSpec (const int16_t *fr, const int16_t *fi, int16_t AvgPitchGain_Q12, enum ISACBand band, Bitstr *streamdata)
void	WebRtcIsac_Rc2Poly (double *RC, int N, double *a)
void	WebRtcIsac_Poly2Rc (double *a, int N, double *RC)
void	WebRtcIsac_Rc2Lar (const double *refc, double *lar, int order)
void	WebRtcIsac_Lar2Rc (const double *lar, double *refc, int order)
void	WebRtcIsac_Poly2Lar (double *lowband, int orderLo, double *hiband, int orderHi, int Nsub, double *lars)
int16_t	WebRtcIsac_Poly2LarUB (double *lpcVecs, int16_t bandwidth)
void	WebRtcIsac_Lar2Poly (double *lars, double *lowband, int orderLo, double *hiband, int orderHi, int Nsub)
void	WebRtcIsac_Lar2PolyInterpolUB (double *larVecs, double *percepFilterParams, int numPolyVecs)
int	WebRtcIsac_DecodeLpc (Bitstr *streamdata, double *LPCCoef_lo, double *LPCCoef_hi)
int16_t	WebRtcIsac_DecodeInterpolLpcUb (Bitstr *streamdata, double *percepFilterParams, int16_t bandwidth)
int	WebRtcIsac_DecodeLpcCoef (Bitstr *streamdata, double *LPCCoef)
void	WebRtcIsac_EncodeLar (double *LPCCoef, Bitstr *streamdata, IsacSaveEncoderData *encData)
void	WebRtcIsac_EncodeLpcLb (double *LPCCoef_lo, double *LPCCoef_hi, Bitstr *streamdata, IsacSaveEncoderData *encData)
int16_t	WebRtcIsac_EncodeLpcUB (double *lpcVecs, Bitstr *streamdata, double *interpolLPCCoeff, int16_t bandwidth, ISACUBSaveEncDataStruct *encData)
void	WebRtcIsac_EncodeLpcGainLb (double *LPCCoef_lo, double *LPCCoef_hi, Bitstr *streamdata, IsacSaveEncoderData *encData)
void	WebRtcIsac_EncodeLpcGainUb (double *lpGains, Bitstr *streamdata, int *lpcGainIndex)
void	WebRtcIsac_StoreLpcGainUb (double *lpGains, Bitstr *streamdata)
int16_t	WebRtcIsac_DecodeLpcGainUb (double *lpGains, Bitstr *streamdata)
int	WebRtcIsac_DecodeRc (Bitstr *streamdata, int16_t *RCQ15)
void	WebRtcIsac_EncodeRc (int16_t *RCQ15, Bitstr *streamdata)
int	WebRtcIsac_DecodeGain2 (Bitstr *streamdata, int32_t *gainQ10)
int	WebRtcIsac_EncodeGain2 (int32_t *gainQ10, Bitstr *streamdata)
int	WebRtcIsac_DecodePitchGain (Bitstr *streamdata, int16_t *PitchGains_Q12)
void	WebRtcIsac_EncodePitchGain (int16_t *PitchGains_Q12, Bitstr *streamdata, IsacSaveEncoderData *encData)
int	WebRtcIsac_DecodePitchLag (Bitstr *streamdata, int16_t *PitchGain_Q12, double *PitchLags)
void	WebRtcIsac_EncodePitchLag (double *PitchLags, int16_t *PitchGain_Q12, Bitstr *streamdata, IsacSaveEncoderData *encData)
int	WebRtcIsac_DecodeFrameLen (Bitstr *streamdata, int16_t *framesamples)
int	WebRtcIsac_EncodeFrameLen (int16_t framesamples, Bitstr *streamdata)
int	WebRtcIsac_DecodeSendBW (Bitstr *streamdata, int16_t *BWno)
void	WebRtcIsac_EncodeReceiveBw (int *BWno, Bitstr *streamdata)
void	WebRtcIsac_TranscodeLPCCoef (double *LPCCoef_lo, double *LPCCoef_hi, int *index_g)
int	WebRtcIsac_DecodeLpcCoefUB (Bitstr *streamdata, double *lpcVecs, double *percepFilterGains, int16_t bandwidth)
int16_t	WebRtcIsac_EncodeBandwidth (enum ISACBandwidth bandwidth, Bitstr *streamData)
int16_t	WebRtcIsac_DecodeBandwidth (Bitstr *streamData, enum ISACBandwidth *bandwidth)
int16_t	WebRtcIsac_EncodeJitterInfo (int32_t jitterIndex, Bitstr *streamData)
int16_t	WebRtcIsac_DecodeJitterInfo (Bitstr *streamData, int32_t *jitterInfo)

Variables
const uint16_t	WebRtcIsac_kFrameLengthCdf [4]
const uint16_t *	WebRtcIsac_kFrameLengthCdf_ptr [1]
const uint16_t	WebRtcIsac_kFrameLengthInitIndex [1] = { 1 }

Macro Definition Documentation

MAX_ORDER

#define MAX_ORDER   100

Function Documentation

WebRtcIsac_DecodeBandwidth()

int16_t WebRtcIsac_DecodeBandwidth	(	Bitstr *	streamData,
		enum ISACBandwidth *	bandwidth
	)

WebRtcIsac_DecodeFrameLen()

int WebRtcIsac_DecodeFrameLen	(	Bitstr *	streamdata,
		int16_t *	framesamples
	)

WebRtcIsac_DecodeGain2()

int WebRtcIsac_DecodeGain2	(	Bitstr *	streamdata,
		int32_t *	gainQ10
	)

WebRtcIsac_DecodeInterpolLpcUb()

int16_t WebRtcIsac_DecodeInterpolLpcUb	(	Bitstr *	streamdata,
		double *	percepFilterParams,
		int16_t	bandwidth
	)

WebRtcIsac_DecodeJitterInfo()

int16_t WebRtcIsac_DecodeJitterInfo	(	Bitstr *	streamData,
		int32_t *	jitterInfo
	)

WebRtcIsac_DecodeLpc()

int WebRtcIsac_DecodeLpc	(	Bitstr *	streamdata,
		double *	LPCCoef_lo,
		double *	LPCCoef_hi
	)

WebRtcIsac_DecodeLpcCoef()

int WebRtcIsac_DecodeLpcCoef	(	Bitstr *	streamdata,
		double *	LPCCoef
	)

WebRtcIsac_DecodeLpcCoefUB()

int WebRtcIsac_DecodeLpcCoefUB	(	Bitstr *	streamdata,
		double *	lpcVecs,
		double *	percepFilterGains,
		int16_t	bandwidth
	)

WebRtcIsac_DecodeLpcGainUb()

int16_t WebRtcIsac_DecodeLpcGainUb	(	double *	lpGains,
		Bitstr *	streamdata
	)

WebRtcIsac_DecodePitchGain()

int WebRtcIsac_DecodePitchGain	(	Bitstr *	streamdata,
		int16_t *	PitchGains_Q12
	)

WebRtcIsac_DecodePitchLag()

int WebRtcIsac_DecodePitchLag	(	Bitstr *	streamdata,
		int16_t *	PitchGain_Q12,
		double *	PitchLags
	)

WebRtcIsac_DecodeRc()

int WebRtcIsac_DecodeRc	(	Bitstr *	streamdata,
		int16_t *	RCQ15
	)

WebRtcIsac_DecodeSendBW()

int WebRtcIsac_DecodeSendBW	(	Bitstr *	streamdata,
		int16_t *	BWno
	)

WebRtcIsac_DecodeSpec()

int WebRtcIsac_DecodeSpec	(	Bitstr *	streamdata,
		int16_t	AvgPitchGain_Q12,
		enum ISACBand	band,
		double *	fr,
		double *	fi
	)

WebRtcIsac_EncodeBandwidth()

int16_t WebRtcIsac_EncodeBandwidth	(	enum ISACBandwidth	bandwidth,
		Bitstr *	streamData
	)

WebRtcIsac_EncodeFrameLen()

int WebRtcIsac_EncodeFrameLen	(	int16_t	framesamples,
		Bitstr *	streamdata
	)

WebRtcIsac_EncodeGain2()

int WebRtcIsac_EncodeGain2	(	int32_t *	gainQ10,
		Bitstr *	streamdata
	)

WebRtcIsac_EncodeJitterInfo()

int16_t WebRtcIsac_EncodeJitterInfo	(	int32_t	jitterIndex,
		Bitstr *	streamData
	)

WebRtcIsac_EncodeLar()

void WebRtcIsac_EncodeLar	(	double *	LPCCoef,
		Bitstr *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsac_EncodeLpcGainLb()

void WebRtcIsac_EncodeLpcGainLb	(	double *	LPCCoef_lo,
		double *	LPCCoef_hi,
		Bitstr *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsac_EncodeLpcGainUb()

void WebRtcIsac_EncodeLpcGainUb	(	double *	lpGains,
		Bitstr *	streamdata,
		int *	lpcGainIndex
	)

WebRtcIsac_EncodeLpcLb()

void WebRtcIsac_EncodeLpcLb	(	double *	LPCCoef_lo,
		double *	LPCCoef_hi,
		Bitstr *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsac_EncodeLpcUB()

int16_t WebRtcIsac_EncodeLpcUB	(	double *	lpcVecs,
		Bitstr *	streamdata,
		double *	interpolLPCCoeff,
		int16_t	bandwidth,
		ISACUBSaveEncDataStruct *	encData
	)

WebRtcIsac_EncodePitchGain()

void WebRtcIsac_EncodePitchGain	(	int16_t *	PitchGains_Q12,
		Bitstr *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsac_EncodePitchLag()

void WebRtcIsac_EncodePitchLag	(	double *	PitchLags,
		int16_t *	PitchGain_Q12,
		Bitstr *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsac_EncodeRc()

void WebRtcIsac_EncodeRc	(	int16_t *	RCQ15,
		Bitstr *	streamdata
	)

WebRtcIsac_EncodeReceiveBw()

void WebRtcIsac_EncodeReceiveBw	(	int *	BWno,
		Bitstr *	streamdata
	)

WebRtcIsac_EncodeSpec()

int WebRtcIsac_EncodeSpec	(	const int16_t *	fr,
		const int16_t *	fi,
		int16_t	AvgPitchGain_Q12,
		enum ISACBand	band,
		Bitstr *	streamdata
	)

WebRtcIsac_Lar2Poly()

void WebRtcIsac_Lar2Poly	(	double *	lars,
		double *	lowband,
		int	orderLo,
		double *	hiband,
		int	orderHi,
		int	Nsub
	)

WebRtcIsac_Lar2PolyInterpolUB()

void WebRtcIsac_Lar2PolyInterpolUB	(	double *	larVecs,
		double *	percepFilterParams,
		int	numPolyVecs
	)

WebRtcIsac_Lar2Rc()

void WebRtcIsac_Lar2Rc	(	const double *	lar,
		double *	refc,
		int	order
	)

WebRtcIsac_Poly2Lar()

void WebRtcIsac_Poly2Lar	(	double *	lowband,
		int	orderLo,
		double *	hiband,
		int	orderHi,
		int	Nsub,
		double *	lars
	)

WebRtcIsac_Poly2LarUB()

int16_t WebRtcIsac_Poly2LarUB	(	double *	lpcVecs,
		int16_t	bandwidth
	)

WebRtcIsac_Poly2Rc()

void WebRtcIsac_Poly2Rc	(	double *	a,
		int	N,
		double *	RC
	)

WebRtcIsac_Rc2Lar()

void WebRtcIsac_Rc2Lar	(	const double *	refc,
		double *	lar,
		int	order
	)

WebRtcIsac_Rc2Poly()

void WebRtcIsac_Rc2Poly	(	double *	RC,
		int	N,
		double *	a
	)

WebRtcIsac_StoreLpcGainUb()

void WebRtcIsac_StoreLpcGainUb	(	double *	lpGains,
		Bitstr *	streamdata
	)

WebRtcIsac_TranscodeLPCCoef()

void WebRtcIsac_TranscodeLPCCoef	(	double *	LPCCoef_lo,
		double *	LPCCoef_hi,
		int *	index_g
	)

Variable Documentation

WebRtcIsac_kFrameLengthCdf

const uint16_t WebRtcIsac_kFrameLengthCdf[4]

Initial value:

= {
    0, 21845, 43690, 65535 }

WebRtcIsac_kFrameLengthCdf_ptr

const uint16_t* WebRtcIsac_kFrameLengthCdf_ptr[1]

Initial value:

= {
    WebRtcIsac_kFrameLengthCdf }

WebRtcIsac_kFrameLengthInitIndex

const uint16_t WebRtcIsac_kFrameLengthInitIndex[1] = { 1 }