libavcodec/hq_hqa.c:278: error: Uninitialized Value
  The value read from slice_off[_] was never initialized.

libavcodec/hq_hqa.c:278:13: 
276.         if (slice_off[slice] < (num_slices + 1) * 3 ||
277.             slice_off[slice] >= slice_off[slice + 1] ||
278.             slice_off[slice + 1] > data_size) {
                 ^
279.             av_log(ctx->avctx, AV_LOG_ERROR,
280.                    "Invalid slice size %zu.\n", data_size);
