libavcodec/aacsbr.c:719: error: Uninitialized Value
  The value read from num_rel_lead was never initialized.

libavcodec/aacsbr.c:719:21: 
717.             ch_data->t_env[i + 1] = ch_data->t_env[i] + temp;
718.     } else if (ch_data->bs_frame_class > 1) { // VARFIX or VARVAR
719.         for (i = 0; i < num_rel_lead; i++)
                         ^
720.             ch_data->t_env[i + 1] = ch_data->t_env[i] + bs_rel_bord[0][i];
721.     }
