def getFrameRate(self):
"""
Extracts the FPS from the physical file on first call and returns
the cached value thereafter as a float. Requires ffmpeg
"""
if not self._fps:
ffmpegParser = FFMPEG(
ffmpeg=self.settings.get('paths_ffmpeg'),
closeFDs=(type(self._platform) != util.WindowsPlatform)) # close_fds borked on windows
try:
metadata = ffmpegParser.get_metadata(self.getLocalPath())
except:
log.exception('ffmpeg parsing failed')
metadata = None
log.debug('ffmpeg metadata for %s = %s' % (self.getLocalPath(), metadata))
if metadata:
self._fps = float(metadata.frame_rate)
else:
self._fps = 29.97
log.error("""Could not determine FPS for file %s so defaulting to %s FPS.
Make sure you have the ffmpeg executable in your path.
Commercial skipping may be inaccurate""" % (self._fps, self.getLocalPath()))
ui.showPopup('Error', 'FFMpeg could not determine framerate. Comm skip may be inaccurate')
return self._fps
