void slotTranscodeClipJob(const QString &condition, QString params, QString desc);
/** @brief Start an MLT process job. */
void slotStartFilterJob(ItemInfo, const QString&,const QString&,const QString&,const QString&,const QString&,const QString&,const QStringList&);
+ void slotSetThumbnail(const QString &id, int framePos, QImage img);
private: