def h264_tune=(h264_tune)
      validator = EnumAttributeValidator.new('String', ["film", "animation", "grain", "psnr", "ssim", "fastdecode", "zerolatency"])
      unless validator.valid?(h264_tune)
        fail ArgumentError, "invalid value for 'h264_tune', must be one of #{validator.allowable_values}."
      end
      @h264_tune = h264_tune
    end
def h264_tune=(h264_tune)
      validator = EnumAttributeValidator.new('String', ["film", "animation", "grain", "psnr", "ssim", "fastdecode", "zerolatency"])
      unless validator.valid?(h264_tune)
        fail ArgumentError, "invalid value for 'h264_tune', must be one of #{validator.allowable_values}."
      end
      @h264_tune = h264_tune
    end
Custom attribute writer method checking allowed values (enum).
 @param [Object] h264_tune Object to be assigned