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src/onset/onset.c: quick fix to get very first frame of file

--- a/src/onset/onset.c

+++ b/src/onset/onset.c

@@ -65,6 +65,12 @@

       }

     }

   } else {

+    if (wasonset == -1 && aubio_silence_detection(input, o->silence) == 0) {

+      //AUBIO_MSG("beginning of file is not silent, marking as onset\n",

+      //  wasonset, aubio_silence_detection(input, o->silence));

+      isonset = 4;

+      wasonset = 0;

+    }

     wasonset++;

   }

   o->wasonset->data[0] = wasonset;

@@ -107,6 +113,7 @@

   o->minioi    = 4;

   o->silence   = -70;

   o->wasonset  = new_fvec(1);

+  o->wasonset->data[0] = -1.;

   o->samplerate = samplerate;

   o->hop_size = hop_size;

   o->pv = new_aubio_pvoc(buf_size, hop_size);