g723_def.h

G.723在ARM上的实现。实现平台为Linux2.4.8+ Intel Xscal。包括源代码

#include <ipp_platform.h>
#include <ippdefs.h>
#include <ippsc.h>

/* Definitions missing from ippSC.h on IA IPP */
typedef struct {
	Ipp16s	adaptEnableFlag;		/* adaptation enable flag */
	Ipp32s	prevFltEnergy;			/* previous filtered signal energy */
	Ipp32s	prevNoiseLevel;			/* previous noise level */
	Ipp16s	hangoverCount;			/* count for hangover frames */
	Ipp16s	vadVoiceCount;			/* count for VAD voice frames */
} IppG723AVadState;

typedef struct {
	Ipp16s	sidLpcAutoCorrExp;		/* exponent of the autocorrelation */
									/* coefficient of SID LPC coefficients */
	Ipp16s	sidLpcAutoCorr[11];		/* SID LPC coefficients autocorrelation */
	Ipp16s	qSidGainIndex;			/* quantized SID gain index */
	Ipp16s	residualEnergy[3];		/* residual energy of previous 3 frames */
	Ipp16s	sumFrame;				/* summation frames number */
} IppG723ADtxState;