libavcodec/ac3enc_template.c:260: error: Uninitialized Value
  The value read from blk1 was never initialized.

libavcodec/ac3enc_template.c:260:13: 
258.         blk = 0;
259.         while (blk < s->num_blocks) {
260.             int av_uninit(blk1);
                 ^
261.             AC3Block *block  = &s->blocks[blk];
262. 
