shithub: aubio

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src/io/source_sndfile.c: mono to stereo, copying last channel of file to all remaining output matrix channels

--- a/src/io/source_sndfile.c

+++ b/src/io/source_sndfile.c

@@ -204,6 +204,15 @@

       data[i][j] = (smpl_t)s->scratch_data[input_channels*j+i];

     }

   }

+  // if read_data has more channels than the file

+  if (read_data->height > input_channels) {

+    // copy last channel to all additional channels

+    for (j = 0; j < read_samples / input_channels; j++) {

+      for (i = input_channels; i < read_to->height; i++) {

+        data[i][v] = s->scratch_data[ j * input_channels + (input_channels - 1)];

+      }

+    }

+  }

 #ifdef HAVE_SAMPLERATE

   if (s->resampler) {