class_docstr: Smoke test for ffmpeg_utils module
docstr: get_encoders|decoders|muxers|demuxers|devices function does not segfault
code: def test_available_stuff(self):
      """get_encoders|decoders|muxers|demuxers|devices function does not segfault"""
  
      ffmpeg_utils.get_demuxers()
      ffmpeg_utils.get_muxers()
      ffmpeg_utils.get_audio_decoders()
      ffmpeg_utils.get_audio_encoders()
      ffmpeg_utils.get_video_decoders()
      ffmpeg_utils.get_video_encoders()
      ffmpeg_utils.get_input_devices()
      ffmpeg_utils.get_output_devices()
      ffmpeg_utils.get_input_protocols()
      ffmpeg_utils.get_output_protocols()
  
file_path: audio/test/torchaudio_unittest/utils/ffmpeg_utils_test.py
imports: from torchaudio.utils import ffmpeg_utils
  from torchaudio_unittest.common_utils import PytorchTestCase, skipIfNoFFmpeg
label_desc: Use image node_id 5 for calling the TestFFmpegUtils obj's underlying member method code with example usage: obj.test_available_stuff() without return types