libavformat/movenc.c:3207: error: Uninitialized Value
  The value read from enabled[_] was never initialized.

libavformat/movenc.c:3207:17: 
3205.         case AVMEDIA_TYPE_AUDIO:
3206.         case AVMEDIA_TYPE_SUBTITLE:
3207.             if (enabled[i] > 1)
                      ^
3208.                 mov->per_stream_grouping = 1;
3209.             if (!enabled[i] && first[i] >= 0)
