DSPlib.cpp File Reference

#include "mp/dsplib.h"

Include dependency graph for DSPlib.cpp:

Macros
#define	FILTER_N   7
#define	HALF_FILTER_N   (FILTER_N+1)/2

Functions
void	init_CNG ()
void	white_noise_generator (MpAudioSample *shpSamples, int iLength, uint32_t ulNoiseLevelAve)
void	comfort_noise_generator (MpAudioSample *shpSamples, int iLength, uint32_t ulNoiseLevelAve)
void	background_noise_level_estimation (uint32_t &ulNoiseLevel, MpAudioSample *shpSamples, int iLength)
int64_t	dspDotProd16x32 (const short *v1, const int *v2, int count, int64_t *res)
int64_t	dspDotProd16skip32 (const short *v1, const int *v2, int count, int64_t *res)
void	dspCoeffUpdate16x32 (const short *v1, int *v2, int count, int factor)
void	dspCoeffUpdate16skip32 (const short *v1, int *v2, int count, int factor)

Variables
short	shpLP500 [HALF_FILTER_N]
short	shpFilterBuf [SAMPLES_PER_FRAME+FILTER_N]

Macro Definition Documentation

#define FILTER_N   7

#define HALF_FILTER_N   (FILTER_N+1)/2

Function Documentation

void init_CNG

(

)

void white_noise_generator	(	MpAudioSample *	shpSamples,
		int	iLength,
		uint32_t	ulNoiseLevelAve
	)

void comfort_noise_generator	(	MpAudioSample *	shpSamples,
		int	iLength,
		uint32_t	ulNoiseLevelAve
	)

void background_noise_level_estimation	(	uint32_t &	ulNoiseLevel,
		MpAudioSample *	shpSamples,
		int	iLength
	)

int64_t dspDotProd16x32	(	const short *	v1,
		const int *	v2,
		int	count,
		int64_t *	res
	)

int64_t dspDotProd16skip32	(	const short *	v1,
		const int *	v2,
		int	count,
		int64_t *	res
	)

void dspCoeffUpdate16x32	(	const short *	v1,
		int *	v2,
		int	count,
		int	factor
	)

void dspCoeffUpdate16skip32	(	const short *	v1,
		int *	v2,
		int	count,
		int	factor
	)

Variable Documentation

short shpLP500[HALF_FILTER_N]

Initial value:

= {     
      
      
      
      
   115, 373, 961, 1440}

short shpFilterBuf[SAMPLES_PER_FRAME+FILTER_N]