libavformat/tiertexseq.c:157: error: Uninitialized Value
  The value read from offset_table[_] was never initialized.

libavformat/tiertexseq.c:157:13: 
155. 
156.     for (i = 0; i < 3; i++) {
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],
