+ av_free(cblk->lengthinc);
+ cblk->lengthinc = av_mallocz_array(newpasses , sizeof(*cblk->lengthinc));
+ if (!cblk->lengthinc)
+ return AVERROR(ENOMEM);
+ tmp = av_realloc_array(cblk->data_start, cblk->nb_terminations + newpasses + 1, sizeof(*cblk->data_start));
+ if (!tmp)
+ return AVERROR(ENOMEM);
+ cblk->data_start = tmp;