class_docstr: Finite state ffmpeg `-i` command option file information parser.
  Is designed to parse the output fast, in one loop. Iterates line by
  line of the `ffmpeg -i <filename> [-f null -]` command output changing
  the internal state of the parser.
  
  Parameters
  ----------
  
  filename
    Name of the file parsed, only used to raise accurate error messages.
  
  infos
    Information returned by FFmpeg.
  
  fps_source
    Indicates what source data will be preferably used to retrieve fps data.
  
  check_duration
    Enable or disable the parsing of the duration of the file. Useful to
    skip the duration check, for example, for images.
  
  decode_file
    Indicates if the whole file has been decoded. The duration parsing strategy
    will differ depending on this argument.
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code: def __init__(
      self,
      infos,
      filename,
      fps_source="fps",
      check_duration=True,
      decode_file=False,
  ):
      self.infos = infos
      self.filename = filename
      self.check_duration = check_duration
      self.fps_source = fps_source
      self.duration_tag_separator = (
          "time=" if decode_file else "Duration: "
      )
  
      self._reset_state()
  
imports: import os
  import re
  import subprocess
  import warnings
  import numpy
  from moviepy.config import FFMPEG_BINARY
  from moviepy.tools import convert_to_seconds, cross_platform_popen_params
label_desc: Use image node_id 1 to create a new FFmpegInfosParser object  with example: obj = FFmpegInfosParser(infos, filename, fps_source, check_duration, decode_file)