class Transcode < XMorph::Base
  DEFAULT = "default"
  def set_profiles
    self.profiles = {
      DEFAULT => "ffmpeg -y -i %{IN} -vf \"fps=29.970000,scale=1920x1080\" -pix_fmt yuv420p  -vcodec h264 -g 13 -bf 2 -x264opts nal-hrd=cbr -profile:v high -vb 18000000 -minrate:v 18000000 -maxrate:v 18000000 -bufsize:v 36000000 -acodec libfdk_aac -profile:a aac_low -ab 192k -map 0:v -map 0:a:0  -muxrate 20011200  -streamid 0:2064  -streamid 1:2068  -vsync 1 -async 1 %{OUT} 2>&1"
    }
  end

  def video_checks
    {
      ALLOWED_ASPECT_RATIO => ["16:9"],
      ALLOWED_HEIGHT => [1080, 2160],
      ALLOWED_WIDTH => [1920, 3480], 
      ALLOWED_FRAME_RATE => IGNORE,
      ALLOWED_VIDEO_BIT_RATE => IGNORE, #Mbps
      ALLOWED_SCAN_TYPE => IGNORE, #all downcased
    }
  end

  def audio_checks
    {
      PRESENCE_OF_AUDIO_TRACK => VALIDATE,
      ALLOWED_NUMBER_OF_AUDIO_TRACKS => [1],
      ALLOWED_AUDIO_CODECS => ["pcm", "aac"],
      ALLOWED_AUDIO_BIT_RATE => IGNORE,
      ALLOWED_NUMBER_OF_AUDIO_CHANNELS => [2],
    }
  end

  # Same  transcode rule is applied for all assets.
  def set_profile_name
    self.profile_name = DEFAULT
    XMorph::Base.logger.debug("XMorph#set_profile_name#curiosity: using profile #{self.profile_name}") unless self.profile_name.nil?
    return true
  end
end