caseClassParsing.scala

case class SplitOnce(inputVideoUrl: String,
                     outputFolder: String,
                     outputFilename: String,
                     startTime: String,
                     stopTime: String) extends Inputs{
  require(inputVideoUrl != null, "input video must not be null.")
  require(outputFolder != null, "output folder must not be null.")
  require(outputFilename != null, "output Filename must not be null.")
  require(startTime != null, "start time must not be null.")
  require(stopTime != null, "stop time must not be null")
}

class VideoSplitter{

  def apply(input: SplitOnce): String = {...}
  
}