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swresample/rematrix: print custom downmix matrix coefficients

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Similar to how it's done to the matrix built in auto_matrix().

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer
2026-06-04 14:44:15 -03:00
parent 6336cffdce
commit 9646228fd6
1 changed files with 14 additions and 0 deletions
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14
libswresample/rematrix.c
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@@ -465,6 +465,20 @@ av_cold int swri_rematrix_init(SwrContext *s){
int r = auto_matrix(s);
if (r)
return r;
} else {
char buf[128];
av_log(s, AV_LOG_DEBUG, "Custom matrix coefficients:\n");
double *matrix_param = (double*)s->matrix;
ptrdiff_t stride = s->matrix[1] - s->matrix[0];
for (i = 0; i < s->out_ch_layout.nb_channels; i++) {
av_channel_name(buf, sizeof(buf), av_channel_layout_channel_from_index(&s->out_ch_layout, i));
av_log(s, AV_LOG_DEBUG, "%s: ", buf);
for (j = 0; j < s->in_ch_layout.nb_channels; j++){
av_channel_name(buf, sizeof(buf), av_channel_layout_channel_from_index(&s->in_ch_layout, j));
av_log(s, AV_LOG_DEBUG, "%s:%f ", buf, matrix_param[stride*i + j]);
}
av_log(s, AV_LOG_DEBUG, "\n");
}
}
if (s->midbuf.fmt == AV_SAMPLE_FMT_S16P){
int maxsum = 0;