Mlt::Producer *checkSlowMotionProducer(Mlt::Producer *prod, QDomElement element);
int mltInsertClip(ItemInfo info, QDomElement element, Mlt::Producer *prod, bool overwrite = false, bool push = false);
bool mltUpdateClip(Mlt::Tractor *tractor, ItemInfo info, QDomElement element, Mlt::Producer *prod);
- void mltCutClip(int track, GenTime position);
+ bool mltCutClip(int track, GenTime position);
void mltInsertSpace(QMap <int, int> trackClipStartList, QMap <int, int> trackTransitionStartList, int track, const GenTime &duration, const GenTime &timeOffset);
int mltGetSpaceLength(const GenTime &pos, int track, bool fromBlankStart);