def _interpolateVideo(self):
print "Interpolating video..."
dialog = QMessageBox(self)
dialog.setText("Attendi mentre ricostruisco il video...")
dialog.show()
start_time = time.time()
interpolator = VideoInterpolator(self.video)
#self._discared_frames = [1, 2, 3] #TODO: remove me
frames_path = interpolator.interpolate(self._discared_frames, self.searcher(), self.ui.blockSizeSpinBox.value(), self.ui.MADThresholdSpingBox.value())
klog("L'interpolazione del video ha impiegato: %.2f secondi" % (time.time()-start_time))
interpolated_video = Video(frames_path=frames_path)
#interpolated_video = Video(frames_path="/tmp/pallone.mov.interpolated")
interpolated_video.load()
dialog.close()
self.ui.interpolatedFramesTimelineListView.setModel( QFramesTimelineListModel( interpolated_video ) )
self.ui.interpolatedFramesTimelineListView.setItemDelegate( QFramesTimelineDelegate() )
klog("Calculating PSNR for frames...")
summed_PSNR = 0
for i in xrange(interpolated_video.frames_count()):
original_frame = self.video.frames[i]
new_frame = interpolated_video.frames[i]
PSNR = ImageComparator.calculate_PSNR( original_frame.image(), new_frame.image(), interpolated_video.width(), interpolated_video.height() )
klog("Frame %d\t\tPSNR:%d" %(i, PSNR))
if PSNR > 1000:
PSNR = 50
summed_PSNR += PSNR
PSNR = summed_PSNR/interpolated_video.frames_count()
klog("The interpolated video has a PSNR of %f" %PSNR)
self.ui.interpolatedVideoPSNRLabel.setText("%f" %PSNR )
klog("Saving the interpolated video...")
FFMpegWrapper.generate_video(frames_path, "interpolated_video.mp4")
