The current_sample field is meant to be the sample number, not an offset into

the sample data.  Don't increment it by multiples of sc->sample_size.
patch by Julian Scheid, julian _-at-_ sektor37 _-dot-_ de

Originally committed as revision 5037 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/mov.c

@@ -1835,7 +1835,7 @@ again:
 
         sc->current_sample++;
     }else if(idx + 1 < sc->sample_to_chunk_sz){
-        sc->current_sample += sc->sample_size * sc->sample_to_chunk[idx].count;
+        sc->current_sample += sc->sample_to_chunk[idx].count;
     }
 
 readchunk: