@@ -73,6 +73,9 @@ int swr_set_matrix(struct SwrContext *s, const double *matrix, int stride)
for (out = 0; out < nb_out; out++) {
for (in = 0; in < nb_in; in++)
s->matrix[out][in] = matrix[in];
+ if (s->int_sample_fmt == AV_SAMPLE_FMT_FLTP)
+ for (in = 0; in < nb_in; in++)
+ s->matrix_flt[out][in] = matrix[in];
matrix += stride;
}
s->rematrix_custom = 1;
@@ -354,6 +357,12 @@ av_cold static int auto_matrix(SwrContext *s)
}
av_log(s, AV_LOG_DEBUG, "\n");
}
+ if (s->int_sample_fmt == AV_SAMPLE_FMT_FLTP) {
+ int i;
+ for (i = 0; i < FF_ARRAY_ELEMS(s->matrix[0])*FF_ARRAY_ELEMS(s->matrix[0]); i++)
+ s->matrix_flt[0][i] = s->matrix[0][i];
+ }
+
return 0;
}
@@ -513,7 +522,7 @@ int swri_rematrix(SwrContext *s, AudioData *out, AudioData *in, int len, int mus
float v=0;
for(j=0; j<s->matrix_ch[out_i][0]; j++){
in_i= s->matrix_ch[out_i][1+j];
- v+= ((float*)in->ch[in_i])[i] * s->matrix[out_i][in_i];
+ v+= ((float*)in->ch[in_i])[i] * s->matrix_flt[out_i][in_i];
}
((float*)out->ch[out_i])[i]= v;
}
@@ -167,7 +167,8 @@ struct SwrContext {
struct ResampleContext *resample; ///< resampling context
struct Resampler const *resampler; ///< resampler virtual function table
- float matrix[SWR_CH_MAX][SWR_CH_MAX]; ///< floating point rematrixing coefficients
+ double matrix[SWR_CH_MAX][SWR_CH_MAX]; ///< floating point rematrixing coefficients
+ float matrix_flt[SWR_CH_MAX][SWR_CH_MAX]; ///< single precission floating point rematrixing coefficients
uint8_t *native_matrix;
uint8_t *native_one;
uint8_t *native_simd_one;
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libswresample/rematrix.c | 11 ++++++++++- libswresample/swresample_internal.h | 3 ++- 2 files changed, 12 insertions(+), 2 deletions(-)