libavcodec/hevc.c:1093: error: Uninitialized Value
  The value read from significant_coeff_flag_idx[_] was never initialized.

libavcodec/hevc.c:1093:17: 
1091. 
1092.             for (m = 0; m < (n_end > 8 ? 8 : n_end); m++) {
1093.                 int n_idx = significant_coeff_flag_idx[m];
                      ^
1094.                 int inc   = (ctx_set << 2) + greater1_ctx;
1095.                 coeff_abs_level_greater1_flag[n_idx] =
