code: def loadFile(self, filePath):
          
          self._filePath = filePath
  
          if self._proc.state() != QProcess.Running:
              self._kill()
              self._run(self._filePath)
          else:
              self._execute("pausing_keep_force pt_step 1")
              self._execute("get_property pause")
              self._execute("loadfile \"%s\"" % self._filePath)
  
          self._data.reset()
          self.videoDataChanged.emit(False)
          self._changePlayingState(True)
docs: Loads a file