tc->start = (hh*3600 + mm*60 + ss) * tc->fps + ff;
if (tc->flags & AV_TIMECODE_FLAG_DROPFRAME) { /* adjust frame number */
int tmins = 60*hh + mm;
tc->start = (hh*3600 + mm*60 + ss) * tc->fps + ff;
if (tc->flags & AV_TIMECODE_FLAG_DROPFRAME) { /* adjust frame number */
int tmins = 60*hh + mm;