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Code Issues Releases Activity

avutil: add float_dsp.vector_dmul

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This commit is contained in:
Paul B Mahol 2018-09-12 12:29:02 +02:00
parent b69ea742ab
commit bb16a0624a
2 changed files with 25 additions and 0 deletions
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9
libavutil/float_dsp.c
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@ -32,6 +32,14 @@ static void vector_fmul_c(float *dst, const float *src0, const float *src1,
dst[i] = src0[i] * src1[i];
}
static void vector_dmul_c(double *dst, const double *src0, const double *src1,
int len)
{
int i;
for (i = 0; i < len; i++)
dst[i] = src0[i] * src1[i];
}
static void vector_fmac_scalar_c(float *dst, const float *src, float mul,
int len)
{
@ -131,6 +139,7 @@ av_cold AVFloatDSPContext *avpriv_float_dsp_alloc(int bit_exact)
return NULL;
fdsp->vector_fmul = vector_fmul_c;
fdsp->vector_dmul = vector_dmul_c;
fdsp->vector_fmac_scalar = vector_fmac_scalar_c;
fdsp->vector_fmul_scalar = vector_fmul_scalar_c;
fdsp->vector_dmac_scalar = vector_dmac_scalar_c;

16
libavutil/float_dsp.h
View File

@ -173,6 +173,22 @@ typedef struct AVFloatDSPContext {
* @return sum of elementwise products
*/
float (*scalarproduct_float)(const float *v1, const float *v2, int len);
/**
* Calculate the entry wise product of two vectors of doubles and store the result in
* a vector of doubles.
*
* @param dst output vector
* constraints: 32-byte aligned
* @param src0 first input vector
* constraints: 32-byte aligned
* @param src1 second input vector
* constraints: 32-byte aligned
* @param len number of elements in the input
* constraints: multiple of 16
*/
void (*vector_dmul)(double *dst, const double *src0, const double *src1,
int len);
} AVFloatDSPContext;
/**