[fix] trigger usage of EVS decoder commandline in case -stereo_dmx_evs is specified

            # done this way to ensure `output_format` is replaced in the correct position

            cmd.remove("-stereo_dmx_evs")

            cmd[cmd.index("-stereo")] = "-stereo_dmx_evs"

            self.use_evs_dec = True # signal the decoder to use EVS commandline

        run(cmd, logger=logger)

        else:

            output_format = self.out_fmt.name

        if output_format == "":

        if output_format == "" or getattr(self, "use_evs_dec", None):

            cmd.extend(

                [

                    str(self.out_fs // 1000),