entropy_coding.c File Reference

#include <stddef.h>
#include "arith_routins.h"
#include "spectrum_ar_model_tables.h"
#include "pitch_gain_tables.h"
#include "pitch_lag_tables.h"
#include "entropy_coding.h"
#include "lpc_tables.h"
#include "settings.h"
#include "signal_processing_library.h"
#include "webrtc/base/checks.h"

Enumerations
enum	matrix_index_factor { kTIndexFactor1 = 1, kTIndexFactor2 = 2, kTIndexFactor3 = SUBFRAMES, kTIndexFactor4 = LPC_SHAPE_ORDER }
enum	matrix_index_step { kTIndexStep1 = 1, kTIndexStep2 = SUBFRAMES, kTIndexStep3 = LPC_SHAPE_ORDER }
enum	matrixprod_loop_count { kTLoopCount1 = SUBFRAMES, kTLoopCount2 = 2, kTLoopCount3 = LPC_SHAPE_ORDER }
enum	matrix1_shift_value { kTMatrix1_shift0 = 0, kTMatrix1_shift1 = 1, kTMatrix1_shift5 = 5 }
enum	matrixprod_init_case { kTInitCase0 = 0, kTInitCase1 = 1 }

Functions
int	WebRtcIsacfix_DecodeSpec (Bitstr_dec *streamdata, int16_t *frQ7, int16_t *fiQ7, int16_t AvgPitchGain_Q12)
int	WebRtcIsacfix_EncodeSpec (const int16_t *fr, const int16_t *fi, Bitstr_enc *streamdata, int16_t AvgPitchGain_Q12)
void	WebRtcIsacfix_MatrixProduct1C (const int16_t matrix0[], const int32_t matrix1[], int32_t matrix_product[], const int matrix1_index_factor1, const int matrix0_index_factor1, const int matrix1_index_init_case, const int matrix1_index_step, const int matrix0_index_step, const int inner_loop_count, const int mid_loop_count, const int shift)
void	WebRtcIsacfix_MatrixProduct2C (const int16_t matrix0[], const int32_t matrix1[], int32_t matrix_product[], const int matrix0_index_factor, const int matrix0_index_step)
int	WebRtcIsacfix_DecodeLpc (int32_t *gain_lo_hiQ17, int16_t *LPCCoef_loQ15, int16_t *LPCCoef_hiQ15, Bitstr_dec *streamdata, int16_t *outmodel)
int	WebRtcIsacfix_DecodeLpcCoef (Bitstr_dec *streamdata, int32_t *LPCCoefQ17, int32_t *gain_lo_hiQ17, int16_t *outmodel)
int	WebRtcIsacfix_EstCodeLpcGain (int32_t *gain_lo_hiQ17, Bitstr_enc *streamdata, IsacSaveEncoderData *encData)
int	WebRtcIsacfix_EncodeLpc (int32_t *gain_lo_hiQ17, int16_t *LPCCoef_loQ15, int16_t *LPCCoef_hiQ15, int16_t *model, int32_t *sizeQ11, Bitstr_enc *streamdata, IsacSaveEncoderData *encData, transcode_obj *transcodeParam)
int	WebRtcIsacfix_DecodeRcCoef (Bitstr_dec *streamdata, int16_t *RCQ15)
int	WebRtcIsacfix_EncodeRcCoef (int16_t *RCQ15, Bitstr_enc *streamdata)
int	WebRtcIsacfix_DecodeGain2 (Bitstr_dec *streamdata, int32_t *gainQ10)
int	WebRtcIsacfix_EncodeGain2 (int32_t *gainQ10, Bitstr_enc *streamdata)
int	WebRtcIsacfix_DecodePitchGain (Bitstr_dec *streamdata, int16_t *PitchGains_Q12)
int	WebRtcIsacfix_EncodePitchGain (int16_t *PitchGains_Q12, Bitstr_enc *streamdata, IsacSaveEncoderData *encData)
int	WebRtcIsacfix_DecodePitchLag (Bitstr_dec *streamdata, int16_t *PitchGain_Q12, int16_t *PitchLags_Q7)
int	WebRtcIsacfix_EncodePitchLag (int16_t *PitchLagsQ7, int16_t *PitchGain_Q12, Bitstr_enc *streamdata, IsacSaveEncoderData *encData)
int	WebRtcIsacfix_DecodeFrameLen (Bitstr_dec *streamdata, size_t *framesamples)
int	WebRtcIsacfix_EncodeFrameLen (int16_t framesamples, Bitstr_enc *streamdata)
int	WebRtcIsacfix_DecodeSendBandwidth (Bitstr_dec *streamdata, int16_t *BWno)
int	WebRtcIsacfix_EncodeReceiveBandwidth (int16_t *BWno, Bitstr_enc *streamdata)
void	WebRtcIsacfix_TranscodeLpcCoef (int32_t *gain_lo_hiQ17, int16_t *index_gQQ)

Variables
const uint16_t	kFrameLenCdf [4]
const uint16_t *	kFrameLenCdfPtr [1] = {kFrameLenCdf}
const uint16_t	kFrameLenInitIndex [1] = {1}
const uint16_t	kBwCdf [25]
const uint16_t *	kBwCdfPtr [1] = {kBwCdf}
const uint16_t	kBwInitIndex [1] = {7}

Enumeration Type Documentation

matrix1_shift_value

enum matrix1_shift_value

Enumerator
kTMatrix1_shift0
kTMatrix1_shift1
kTMatrix1_shift5

matrix_index_factor

enum matrix_index_factor

Enumerator
kTIndexFactor1
kTIndexFactor2
kTIndexFactor3
kTIndexFactor4

matrix_index_step

enum matrix_index_step

Enumerator
kTIndexStep1
kTIndexStep2
kTIndexStep3

matrixprod_init_case

enum matrixprod_init_case

Enumerator
kTInitCase0
kTInitCase1

matrixprod_loop_count

enum matrixprod_loop_count

Enumerator
kTLoopCount1
kTLoopCount2
kTLoopCount3

Function Documentation

WebRtcIsacfix_DecodeFrameLen()

int WebRtcIsacfix_DecodeFrameLen	(	Bitstr_dec *	streamdata,
		size_t *	framesamples
	)

WebRtcIsacfix_DecodeGain2()

int WebRtcIsacfix_DecodeGain2	(	Bitstr_dec *	streamdata,
		int32_t *	gainQ10
	)

WebRtcIsacfix_DecodeLpc()

int WebRtcIsacfix_DecodeLpc	(	int32_t *	gain_lo_hiQ17,
		int16_t *	LPCCoef_loQ15,
		int16_t *	LPCCoef_hiQ15,
		Bitstr_dec *	streamdata,
		int16_t *	outmodel
	)

WebRtcIsacfix_DecodeLpcCoef()

int WebRtcIsacfix_DecodeLpcCoef	(	Bitstr_dec *	streamdata,
		int32_t *	LPCCoefQ17,
		int32_t *	gain_lo_hiQ17,
		int16_t *	outmodel
	)

WebRtcIsacfix_DecodePitchGain()

int WebRtcIsacfix_DecodePitchGain	(	Bitstr_dec *	streamdata,
		int16_t *	PitchGains_Q12
	)

WebRtcIsacfix_DecodePitchLag()

int WebRtcIsacfix_DecodePitchLag	(	Bitstr_dec *	streamdata,
		int16_t *	PitchGain_Q12,
		int16_t *	PitchLags_Q7
	)

WebRtcIsacfix_DecodeRcCoef()

int WebRtcIsacfix_DecodeRcCoef	(	Bitstr_dec *	streamdata,
		int16_t *	RCQ15
	)

WebRtcIsacfix_DecodeSendBandwidth()

int WebRtcIsacfix_DecodeSendBandwidth	(	Bitstr_dec *	streamdata,
		int16_t *	BWno
	)

WebRtcIsacfix_DecodeSpec()

int WebRtcIsacfix_DecodeSpec	(	Bitstr_dec *	streamdata,
		int16_t *	frQ7,
		int16_t *	fiQ7,
		int16_t	AvgPitchGain_Q12
	)

WebRtcIsacfix_EncodeFrameLen()

int WebRtcIsacfix_EncodeFrameLen	(	int16_t	framesamples,
		Bitstr_enc *	streamdata
	)

WebRtcIsacfix_EncodeGain2()

int WebRtcIsacfix_EncodeGain2	(	int32_t *	gainQ10,
		Bitstr_enc *	streamdata
	)

WebRtcIsacfix_EncodeLpc()

int WebRtcIsacfix_EncodeLpc	(	int32_t *	gain_lo_hiQ17,
		int16_t *	LPCCoef_loQ15,
		int16_t *	LPCCoef_hiQ15,
		int16_t *	model,
		int32_t *	sizeQ11,
		Bitstr_enc *	streamdata,
		IsacSaveEncoderData *	encData,
		transcode_obj *	transcodeParam
	)

WebRtcIsacfix_EncodePitchGain()

int WebRtcIsacfix_EncodePitchGain	(	int16_t *	PitchGains_Q12,
		Bitstr_enc *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsacfix_EncodePitchLag()

int WebRtcIsacfix_EncodePitchLag	(	int16_t *	PitchLagsQ7,
		int16_t *	PitchGain_Q12,
		Bitstr_enc *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsacfix_EncodeRcCoef()

int WebRtcIsacfix_EncodeRcCoef	(	int16_t *	RCQ15,
		Bitstr_enc *	streamdata
	)

WebRtcIsacfix_EncodeReceiveBandwidth()

int WebRtcIsacfix_EncodeReceiveBandwidth	(	int16_t *	BWno,
		Bitstr_enc *	streamdata
	)

WebRtcIsacfix_EncodeSpec()

int WebRtcIsacfix_EncodeSpec	(	const int16_t *	fr,
		const int16_t *	fi,
		Bitstr_enc *	streamdata,
		int16_t	AvgPitchGain_Q12
	)

WebRtcIsacfix_EstCodeLpcGain()

int WebRtcIsacfix_EstCodeLpcGain	(	int32_t *	gain_lo_hiQ17,
		Bitstr_enc *	streamdata,
		IsacSaveEncoderData *	encData
	)

WebRtcIsacfix_MatrixProduct1C()

void WebRtcIsacfix_MatrixProduct1C	(	const int16_t	matrix0[],
		const int32_t	matrix1[],
		int32_t	matrix_product[],
		const int	matrix1_index_factor1,
		const int	matrix0_index_factor1,
		const int	matrix1_index_init_case,
		const int	matrix1_index_step,
		const int	matrix0_index_step,
		const int	inner_loop_count,
		const int	mid_loop_count,
		const int	shift
	)

WebRtcIsacfix_MatrixProduct2C()

void WebRtcIsacfix_MatrixProduct2C	(	const int16_t	matrix0[],
		const int32_t	matrix1[],
		int32_t	matrix_product[],
		const int	matrix0_index_factor,
		const int	matrix0_index_step
	)

WebRtcIsacfix_TranscodeLpcCoef()

void WebRtcIsacfix_TranscodeLpcCoef	(	int32_t *	gain_lo_hiQ17,
		int16_t *	index_gQQ
	)

Variable Documentation

kBwCdf

const uint16_t kBwCdf[25]

Initial value:

= {
  0, 2731, 5461, 8192, 10923, 13653, 16384, 19114, 21845, 24576, 27306, 30037,
  32768, 35498, 38229, 40959, 43690, 46421, 49151, 51882, 54613, 57343, 60074,
  62804, 65535}

kBwCdfPtr

const uint16_t* kBwCdfPtr[1] = {kBwCdf}

kBwInitIndex

const uint16_t kBwInitIndex[1] = {7}

kFrameLenCdf

const uint16_t kFrameLenCdf[4]

Initial value:

= {
  0, 21845, 43690, 65535}

kFrameLenCdfPtr

const uint16_t* kFrameLenCdfPtr[1] = {kFrameLenCdf}

kFrameLenInitIndex

const uint16_t kFrameLenInitIndex[1] = {1}