player.py 文件源码

def _spawn_ffmpeg(self):
        if self.streaming:
            url = self._stream_url
        elif self.playing:
            url = self._song_context.song_url
        else:
            raise RuntimeError('Player is in an invalid state')

        args = shlex.split(self._ffmpeg_command.format(shlex.quote(url)))
        try:
            self._ffmpeg = subprocess.Popen(args)
        except FileNotFoundError as e:
            raise RuntimeError('ffmpeg executable was not found') from e
        except subprocess.SubprocessError as e:
            raise RuntimeError('Popen failed: {0.__name__} {1}'.format(type(e), str(e))) from e

    #
    # Player FSM
    #