libavformat/mpeg.c:311: error: Uninitialized Value
  The value read from c was never initialized.

libavformat/mpeg.c:311:13: 
309.         dts = pts = get_pts(s->pb, c);
310.         len -= 4;
311.         if (c & 0x10){
                 ^
312.             dts = get_pts(s->pb, -1);
313.             len -= 5;
