Warning, /multimedia/kdenlive/data/effects/speed.xml is written in an unsupported language. File is not indexed.

 <?xml version="1.0"?>
 <!DOCTYPE kpartgui>
 <effect tag="timewarp" id="speed" type="av" unique="1">
     <name>Speed</name>
     <description>Make clip play faster or slower</description>
     <author>Brian Matherly</author>
     <parameter type="constant" name="speed" max="2000" min="-2000" default="1" factor="100" suffix="%">
         <name>Speed</name>
     </parameter>
 </effect>