              _inputs = {input_: _input_opts}
          else:
              _inputs = {input_.path: _input_opts}
          ffp = FFprobe(inputs=_inputs)
          _fps = ffp.run(stdout=subprocess.PIPE)[0].decode("utf-8")
          _fps = _fps.strip()
          if "/" in _fps:
 
</s> remove             _inputs = {_input_path: _input_opts, ref_vid.path: None}
 </s> add             _inputs = OrderedDict([(_input_path, _input_opts), (ref_vid.path, None)]) </s> remove         _inputs = {input_.path: _input_opts, ref_vid.path: _ref_vid_opts}
 </s> add         _inputs = OrderedDict([(input_.path, _input_opts), (ref_vid.path, _ref_vid_opts)]) </s> remove         _output_opts = '-vf fps="' + str(fps) + '" '
 </s> add         _fps_arg = '-r ' + str(fps) + ' '
        _input_opts += _fps_arg + "-f image2 "
        _output_opts = _fps_arg </s> remove                                r"(?P<tme>\d+:\d+<.*),\W(?P<rte>.*)[a-zA-Z/]*\]")}
 </s> add                                r"(?P<tme>\d+:\d+<.*),\W(?P<rte>.*)[a-zA-Z/]*\]"),
            "ffmpeg": re.compile(r"([a-zA-Z]+)=\s*([\d|N/A]\S+)")}
        logger.debug(_inputs)
              _inputs = {input_: _input_opts}
          else:
              _inputs = {input_.path: _input_opts}
        logger.debug(_inputs)
          ffp = FFprobe(inputs=_inputs)
          _fps = ffp.run(stdout=subprocess.PIPE)[0].decode("utf-8")
          _fps = _fps.strip()
          if "/" in _fps:
keep keep add keep keep keep keep
 Fix effmpeg fps detection and better GUI handling 
tools/effmpeg.py