libavformat/mpeg.c:315: error: Uninitialized Value
  The value read from c was never initialized.

libavformat/mpeg.c:315:16: 
313.             len -= 5;
314.         }
315.     } else if ((c & 0xc0) == 0x80) {
                    ^
316.         /* mpeg 2 PES */
317. #if 0 /* some streams have this field set for no apparent reason */
