<?xml version="1.0" encoding="ISO-8859-1"?>

<screensaver name="vfeedback" _label="VFeedback">

  <command arg="-root"/>

  <video href="https://www.youtube.com/watch?v=I_MkW0CW4QM"/>

  <hgroup>
   <vgroup>
    <number id="tvcolor" type="slider" arg="-tv-color %"
            _label="Color Knob" _low-label="Low" _high-label="High"
            low="0" high="400" default="70"/>
    <number id="tvtint" type="slider" arg="-tv-tint %"
            _label="Tint Knob" _low-label="Low" _high-label="High"
            low="0" high="360" default="5"/>
    <number id="noise" type="slider" arg="-noise %"
            _label="Noise" _low-label="Low" _high-label="High"
            low="0.0" high="0.2" default="0.02"/>
   </vgroup>
   <vgroup>
    <number id="tvbrightness" type="slider" arg="-tv-brightness %"
            _label="Brightness Knob" _low-label="Low" _high-label="High"
            low="-75.0" high="100.0" default="1.5"/>
    <number id="tvcontrast" type="slider" arg="-tv-contrast %"
            _label="Contrast Knob" _low-label="Low" _high-label="High"
            low="0" high="500" default="150"/>
    <boolean id="showfps" _label="Show frame rate" arg-set="-fps"/>
   </vgroup>
  </hgroup>

  <xscreensaver-updater />

  <_description>
Simulates video feedback: pointing a video camera at an NTSC television.

Written by Jamie Zawinski; 2018.
  </_description>
</screensaver>
