polyphase.c File Reference

#include "coder.h"
#include "assembly.h"

Go to the source code of this file.

Macros
#define	DEF_NFRACBITS   (DQ_FRACBITS_OUT - 2 - 2 - 15)
#define	CSHIFT   12 /* coefficients have 12 leading sign bits for early-terminating mulitplies */
#define	MC0M(x)
#define	MC1M(x)
#define	MC2M(x)
#define	MC0S(x)
#define	MC1S(x)
#define	MC2S(x)

Functions
void	PolyphaseMono (short *pcm, int *vbuf, const int *coefBase)
void	PolyphaseStereo (short *pcm, int *vbuf, const int *coefBase)

Macro Definition Documentation

CSHIFT

#define CSHIFT   12 /* coefficients have 12 leading sign bits for early-terminating mulitplies */

Definition at line 57 of file polyphase.c.

DEF_NFRACBITS

#define DEF_NFRACBITS   (DQ_FRACBITS_OUT - 2 - 2 - 15)

Definition at line 56 of file polyphase.c.

MC0M

#define MC0M

(

x

)

Value:

  { \
  c1 = *coef;   coef++;   c2 = *coef;   coef++; \
  vLo = *(vb1+(x));     vHi = *(vb1+(23-(x))); \
  sum1L = MADD64(sum1L, vLo,  c1);  sum1L = MADD64(sum1L, vHi, -c2); \
}

Definition at line 74 of file polyphase.c.

MC0S

#define MC0S

(

x

)

Value:

  { \
  c1 = *coef;   coef++;   c2 = *coef;   coef++; \
  vLo = *(vb1+(x));   vHi = *(vb1+(23-(x))); \
  sum1L = MADD64(sum1L, vLo,  c1);  sum1L = MADD64(sum1L, vHi, -c2); \
  vLo = *(vb1+32+(x));  vHi = *(vb1+32+(23-(x))); \
  sum1R = MADD64(sum1R, vLo,  c1);  sum1R = MADD64(sum1R, vHi, -c2); \
}

Definition at line 179 of file polyphase.c.

MC1M

#define MC1M

(

x

)

Value:

  { \
  c1 = *coef;   coef++; \
  vLo = *(vb1+(x)); \
  sum1L = MADD64(sum1L, vLo,  c1); \
}

Definition at line 80 of file polyphase.c.

MC1S

#define MC1S

(

x

)

Value:

  { \
  c1 = *coef;   coef++; \
  vLo = *(vb1+(x)); \
  sum1L = MADD64(sum1L, vLo,  c1); \
  vLo = *(vb1+32+(x)); \
  sum1R = MADD64(sum1R, vLo,  c1); \
}

Definition at line 187 of file polyphase.c.

MC2M

#define MC2M

(

x

)

Value:

    { \
    c1 = *coef;   coef++;   c2 = *coef;   coef++; \
    vLo = *(vb1+(x)); vHi = *(vb1+(23-(x))); \
    sum1L = MADD64(sum1L, vLo,  c1);  sum2L = MADD64(sum2L, vLo,  c2); \
    sum1L = MADD64(sum1L, vHi, -c2);  sum2L = MADD64(sum2L, vHi,  c1); \
}

Definition at line 86 of file polyphase.c.

MC2S

#define MC2S

(

x

)

Value:

    { \
    c1 = *coef;   coef++;   c2 = *coef;   coef++; \
    vLo = *(vb1+(x)); vHi = *(vb1+(23-(x))); \
    sum1L = MADD64(sum1L, vLo,  c1);  sum2L = MADD64(sum2L, vLo,  c2); \
    sum1L = MADD64(sum1L, vHi, -c2);  sum2L = MADD64(sum2L, vHi,  c1); \
    vLo = *(vb1+32+(x));  vHi = *(vb1+32+(23-(x))); \
    sum1R = MADD64(sum1R, vLo,  c1);  sum2R = MADD64(sum2R, vLo,  c2); \
    sum1R = MADD64(sum1R, vHi, -c2);  sum2R = MADD64(sum2R, vHi,  c1); \
}

Definition at line 195 of file polyphase.c.

Function Documentation

PolyphaseMono()

void PolyphaseMono	(	short *	pcm,
		int *	vbuf,
		const int *	coefBase )

Definition at line 112 of file polyphase.c.

PolyphaseStereo()

void PolyphaseStereo	(	short *	pcm,
		int *	vbuf,
		const int *	coefBase )

Definition at line 225 of file polyphase.c.