libavformat/tiertexseq.c:168: error: Uninitialized Value
  The value read from buffer_num[_] was never initialized.

libavformat/tiertexseq.c:168:13: 
166. 
167.     if (buffer_num[0] != 255) {
168.         if (buffer_num[0] >= SEQ_NUM_FRAME_BUFFERS)
                 ^
169.             return AVERROR_INVALIDDATA;
170. 
