VapoursynthSource(JobObject *jobObject, const OptionsModel *options, const SysinfoModel *const sysinfo, const PreferencesModel *const preferences, JobStatus &jobStatus, volatile bool *abort, volatile bool *pause, QSemaphore *semaphorePause, const QString &sourceFile);
virtual ~VapoursynthSource(void);
+ virtual bool isSourceAvailable(void);
virtual void printVersion(const unsigned int &revision, const bool &modified);
virtual bool isVersionSupported(const unsigned int &revision, const bool &modified);