G726.cpp File Reference

Implementation of ITU-T (formerly CCITT) Recomendation G726. More...

#include "common.h"
#include "G726.h"
#include "G711.h"

Include dependency graph for G726.cpp:

Defines
#define	CHECK_SM(x, bits) ASSERT_DEBUG(((x)>>bits)==0)
#define	CHECK_UM(x, bits) ASSERT_DEBUG(((x)>>bits)==0)
#define	CHECK_TC(x, bits) ASSERT_DEBUG(((x)>>(bits-1))==((x)<0?-1:0))
#define	CHECK_FL(x, bits) ASSERT_DEBUG(((x)>>bits)==0)
#define	CHECK_UNSIGNED(x, bits) ASSERT_DEBUG(((x)>>bits)==0)
Functions
static void	EXPAND (unsigned S, unsigned LAW, int &SL)
	EXPAND function from G726 Section 4.2.1 - Input PCM format conversion and difference signal computation.
static void	SUBTA (int SL, int SE, int &D)
	SUBTA function from G726 Section 4.2.1 - Input PCM format conversion and difference signal computation.
static void	LOG (int D, unsigned &DL, int &DS)
	LOG function from G726 Section 4.2.2 - Adaptive quantizer.
static void	QUAN (unsigned RATE, int DLN, int DS, unsigned &I)
	QUAN function from G726 Section 4.2.2 - Adaptive quantizer.
static void	SUBTB (unsigned DL, unsigned Y, int &DLN)
	SUBTB function from G726 Section 4.2.2 - Adaptive quantizer.
static void	ADDA (int DQLN, unsigned Y, int &DQL)
	ADDA function from G726 Section 4.2.3 - Inverse adaptive quantizer.
static void	ANTILOG (int DQL, int DQS, unsigned &DQ)
	ANTILOG function from G726 Section 4.2.3 - Inverse adaptive quantizer.
static void	RECONST (unsigned RATE, unsigned I, int &DQLN, int &DQS)
	RECONST function from G726 Section 4.2.3 - Inverse adaptive quantizer.
static void	FILTD (int WI, unsigned Y, unsigned &YUT)
	FILTD function from G726 Section 4.2.4 - Quantizer scale factor adaptation.
static void	FILTE (unsigned YUP, unsigned YL, unsigned &YLP)
	FILTE function from G726 Section 4.2.4 - Quantizer scale factor adaptation.
static void	FUNCTW (unsigned RATE, unsigned I, int &WI)
	FUNCTW function from G726 Section 4.2.4 - Quantizer scale factor adaptation.
static void	LIMB (unsigned YUT, unsigned &YUP)
	LIMB function from G726 Section 4.2.4 - Quantizer scale factor adaptation.
static void	MIX (unsigned AL, unsigned YU, unsigned YL, unsigned &Y)
	MIX function from G726 Section 4.2.4 - Quantizer scale factor adaptation.
static void	FILTA (unsigned FI, unsigned DMS, unsigned &DMSP)
	FILTA function from G726 Section 4.2.5 - Adaptation speed control.
static void	FILTB (unsigned FI, unsigned DML, unsigned &DMLP)
	FILTB function from G726 Section 4.2.5 - Adaptation speed control.
static void	FILTC (unsigned AX, unsigned AP, unsigned &APP)
	FILTC function from G726 Section 4.2.5 - Adaptation speed control.
static void	FUNCTF (unsigned RATE, unsigned I, unsigned &FI)
	FUNCTF function from G726 Section 4.2.5 - Adaptation speed control.
static void	LIMA (unsigned AP, unsigned &AL)
	LIMA function from G726 Section 4.2.5 - Adaptation speed control.
static void	SUBTC (unsigned DMSP, unsigned DMLP, unsigned TDP, unsigned Y, unsigned &AX)
	SUBTC function from G726 Section 4.2.5 - Adaptation speed control.
static void	TRIGA (unsigned TR, unsigned APP, unsigned &APR)
	TRIGA function from G726 Section 4.2.5 - Adaptation speed control.
static void	ACCUM (int WAn[2], int WBn[6], int &SE, int &SEZ)
	ACCUM function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	ADDB (unsigned DQ, int SE, int &SR)
	ACCUM function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	ADDC (unsigned DQ, int SEZ, int &PK0, unsigned &SIGPK)
	ADDC function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	FLOATA (unsigned DQ, unsigned &DQ0)
	FLOATA function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	FLOATB (int SR, unsigned &SR0)
	FLOATB function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	FMULT (int An, unsigned SRn, int &WAn)
	FMULT function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	LIMC (int A2T, int &A2P)
	LIMC function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	LIMD (int A1T, int A2P, int &A1P)
	LIMD function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	TRIGB (unsigned TR, int AnP, int &AnR)
	TRIGB function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	UPA1 (int PK0, int PK1, int A1, unsigned SIGPK, int &A1T)
	UPA1 function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	UPA2 (int PK0, int PK1, int PK2, int A1, int A2, unsigned SIGPK, int &A2T)
	UPA2 function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	UPB (unsigned RATE, int Un, int Bn, unsigned DQ, int &BnP)
	UPB function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	XOR (unsigned DQn, unsigned DQ, int &Un)
	XOR function from G726 Section 4.2.6 - Adaptative predictor and reconstructed signal calculator.
static void	TONE (int A2P, unsigned &TDP)
	TONE function from G726 Section 4.2.7 - Tone and transition detector.
static void	TRANS (unsigned TD, unsigned YL, unsigned DQ, unsigned &TR)
	TRANS function from G726 Section 4.2.7 - Tone and transition detector.
static void	COMPRESS (int SR, unsigned LAW, unsigned &SP)
	COMPRESS function from G726 Section 4.2.8 - Output PCM format conversion and synchronous coding adjustment.
static void	SYNC (unsigned RATE, unsigned I, unsigned SP, int DLNX, int DSX, unsigned LAW, unsigned &SD)
	SYNC function from G726 Section 4.2.8 - Output PCM format conversion and synchronous coding adjustment.
static void	LIMO (int SR, int &SO)
	LIMO function from G726 Section A.3.5 - Output limiting (decoder only).

Detailed Description

Implementation of ITU-T (formerly CCITT) Recomendation G726.

Definition in file G726.cpp.

G726.cpp File Reference

Defines

Functions

Detailed Description