code: def _run(self, cmd, output_file):
      out, _ = cmd.output(filename=output_file, crf=self.crf).run(
          quiet=True
      )
      video = None
      return video
  
imports: import torch
  import pandas
  import os
  import numpy
  import ffmpeg
  import random
  from torch.utils.data import Dataset
label_desc: Use image node_id 2 for calling the VideoCompressor obj's underlying member method code with example usage: obj._run(cmd, output_file) and returns: video