libavcodec/aacdec.c:2392: error: Uninitialized Value
  The value read from err was never initialized.

libavcodec/aacdec.c:2392:13: 
2390. 
2391.         if (err)
2392.             return err;
                  ^
2393. 
2394.         if (get_bits_left(gb) < 3) {
