      def rescale(input_=None, output=None, scale=None,  # pylint:disable=unused-argument
                  preview=False, exe=None, **kwargs):
          """ Rescale Video """
          _input_opts = Effmpeg._common_ffmpeg_args[:]
          _output_opts = '-vf scale="' + str(scale) + '"'
          if not preview:
              _output_opts = '-y ' + _output_opts
          _inputs = {input_.path: _input_opts}
          _outputs = {output.path: _output_opts}
          Effmpeg.__run_ffmpeg(exe=exe, inputs=_inputs, outputs=_outputs)
  
      @staticmethod
 
</s> remove                 preview=False, exe=None, **kwargs):
 </s> add                 exe=None, **kwargs): </s> remove         if not preview:
            _output_opts = '-y ' + _output_opts + "-vcodec copy -acodec copy"
 </s> add  </s> remove         if preview:
            raise ValueError("Preview with audio muxing is not supported.")
        # if not preview:
        #    _output_opts = '-y ' + _output_opts
 </s> add  </s> remove               duration=None, preview=None, exe=None, **kwargs):
 </s> add               duration=None, exe=None, **kwargs): </s> remove             if preview:
                raise ValueError("Preview for gen-vid with audio muxing is "
                                 "not supported.")
 </s> add 
        _output_opts = '-y -vf scale="' + str(scale) + '"'
      def rescale(input_=None, output=None, scale=None,  # pylint:disable=unused-argument
                  preview=False, exe=None, **kwargs):
          """ Rescale Video """
          _input_opts = Effmpeg._common_ffmpeg_args[:]
        _output_opts = '-y -vf scale="' + str(scale) + '"'
        _output_opts = '-y -vf scale="' + str(scale) + '"'
        _output_opts = '-y -vf scale="' + str(scale) + '"'
          _inputs = {input_.path: _input_opts}
          _outputs = {output.path: _output_opts}
          Effmpeg.__run_ffmpeg(exe=exe, inputs=_inputs, outputs=_outputs)
  
      @staticmethod
keep keep keep keep replace replace replace keep keep keep keep keep
 Bugfixes and minor updates:
  - Remove preview option from effmpeg tool
  - Remove json filetypes from GUI for alignments files
  - Capture and raise empty timelapse folder errors
  - Move convert to use centralized ImagesLoader 
tools/effmpeg/effmpeg.py