libavformat/movenc.c:3240: error: Uninitialized Value
  The value read from palette[_] was never initialized.

libavformat/movenc.c:3240:13: 
3238.             return AVERROR(ENOMEM);
3239.         for (i = 0; i < 16; i++) {
3240.             AV_WB32(track->vos_data + i * 4, palette[i]);
                  ^
3241.         }
3242.         track->vos_len = 16 * 4;
