diff options
Diffstat (limited to 'libavresample/audio_mix.c')
| -rw-r--r-- | libavresample/audio_mix.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/libavresample/audio_mix.c b/libavresample/audio_mix.c index 765bc73441..211e3c93a9 100644 --- a/libavresample/audio_mix.c +++ b/libavresample/audio_mix.c @@ -559,9 +559,12 @@ static void reduce_matrix(AudioMix *am, const double *matrix, int stride) if (zero) { am->output_zero[o] = 1; am->out_matrix_channels--; + if (o < am->in_channels) + am->in_matrix_channels--; } } - if (am->out_matrix_channels == 0) { + if (am->out_matrix_channels == 0 || am->in_matrix_channels == 0) { + am->out_matrix_channels = 0; am->in_matrix_channels = 0; return; } @@ -683,7 +686,7 @@ int ff_audio_mix_set_matrix(AudioMix *am, const double *matrix, int stride) am->in_matrix_channels; \ for (i = 0, i0 = 0; i < am->in_channels; i++) { \ double v; \ - if (am->input_skip[i]) \ + if (am->input_skip[i] || am->output_zero[i]) \ continue; \ v = matrix[o * stride + i]; \ am->matrix_## type[o0][i0] = expr; \ |