&& (is->iformat->flags & AVFMT_TS_DISCONT)) {
int64_t pkt_dts= av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
int64_t delta= pkt_dts - ist->next_pts;
- if((FFABS(delta) > 1LL*dts_delta_threshold*AV_TIME_BASE || pkt_dts+1<ist->pts)&& !copy_ts){
+ if((delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
+ (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
+ ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
+ pkt_dts+1<ist->pts)&& !copy_ts){
input_files[ist->file_index].ts_offset -= delta;
if (verbose > 2)
fprintf(stderr, "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",