libavcodec/hq_hqa.c:276: error: Uninitialized Value
  The value read from slice_off[_] was never initialized.

libavcodec/hq_hqa.c:276:13: 
274. 
275.     for (slice = 0; slice < num_slices; slice++) {
276.         if (slice_off[slice] < (num_slices + 1) * 3 ||
                 ^
277.             slice_off[slice] >= slice_off[slice + 1] ||
278.             slice_off[slice + 1] > data_size) {
