ffmpeg.c_pts_codeBit

01562                     ist->next_pts = ist->pts = picture.best_effort_timestamp;
01563                     if (ist->st->codec->time_base.num != 0) {
01564                         int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
01565                         ist->next_pts += ((int64_t)AV_TIME_BASE *
01566                                           ist->st->codec->time_base.num * ticks) /
01567                             ist->st->codec->time_base.den;
01568                     }