code: def test_video_ffmpeg(self):
      video_path = os.path.join(self._test_data_path, "video.mkv")
      video_json_path = os.path.join(self._test_data_path, "video.json")
      with epath.Path(video_json_path).open() as fp:
          video_array = np.asarray(json.load(fp))
  
      self.assertFeature(
          feature=features.Video(shape=(5, 4, 2, 3)),
          shape=(5, 4, 2, 3),
          dtype=tf.uint8,
          tests=[
              testing.FeatureExpectationItem(
                  value=video_path,
                  expected=video_array,
              ),
              testing.FeatureExpectationItem(
                  value=pathlib.Path(video_path),
                  expected=video_array,
              ),
          ],
      )
  
      class GFileWithSeekOnRead(tf.io.gfile.GFile):
          def read(self, *args, **kwargs):
              data_read = super(GFileWithSeekOnRead, self).read(
                  *args, **kwargs
              )
              self.seek(0)
              return data_read
  
      with GFileWithSeekOnRead(video_path, "rb") as video_fp:
          self.assertFeature(
              feature=features.Video(shape=(5, 4, 2, 3)),
              shape=(5, 4, 2, 3),
              dtype=tf.uint8,
              tests=[
                  testing.FeatureExpectationItem(
                      value=video_fp,
                      expected=video_array,
                  ),
              ],
          )
  
file_path: datasets/tensorflow_datasets/core/features/video_feature_test.py
imports: import json
  import os
  import pathlib
  from etils import epath
  import numpy
  import tensorflow
  from tensorflow_datasets import testing
  from tensorflow_datasets.core import features
label_desc: Use image node_id 4 for calling the VideoFeatureTest obj's underlying member method code with example usage: obj.test_video_ffmpeg() and returns: data_read