+ if (!(st->codec->time_base.num > 0 && st->codec->time_base.den > 0)) {
+ av_log(s, AV_LOG_WARNING, "Invalid time base in theora stream, assuming 25 FPS\n");
+ st->codec->time_base.num = 1;
+ st->codec->time_base.den = 25;
+ }
+ av_set_pts_info(st, 64, st->codec->time_base.num, st->codec->time_base.den);