double getSnapPointForPos(double pos, bool doSnap = true);
void setScale(double scale, double vscale);
QPointF scale() const;
int tracksCount() const;
MltVideoProfile profile() const;
double getSnapPointForPos(double pos, bool doSnap = true);
void setScale(double scale, double vscale);
QPointF scale() const;
int tracksCount() const;
MltVideoProfile profile() const;