libavformat/tiertexseq.c:159: error: Uninitialized Value
  The value read from buffer_num[_] was never initialized.

libavformat/tiertexseq.c:159:19: 
157.         if (offset_table[i]) {
158.             for (e = i + 1; e < 3 && offset_table[e] == 0; e++);
159.             err = seq_fill_buffer(seq, pb, buffer_num[1 + i],
                       ^
160.               offset_table[i],
161.               offset_table[e] - offset_table[i]);
