class_docstr: Read/Write ImageResources using FFMPEG.
  
  See :mod:`imageio.plugins.ffmpeg`
code: def _can_read(self, request):
      # Read from video stream?
      # Note that we could write the _video flag here, but a user might
      # select this format explicitly (and this code is not run)
      if re.match(r"<video(\d+)>", request.filename):
          return True
  
      # Read from file that we know?
      if request.extension in self.extensions:
          return True
  
imports: import re
  import sys
  import time
  import logging
  import platform
  import threading
  import subprocess
  import imageio_ffmpeg
  import numpy
  from ..core import Format, image_as_uint
label_desc: Use image node_id 1 for calling the FfmpegFormat obj's underlying member method code with example usage: obj._can_read(request) and returns: True, True