2 <effect tag="crop" id="crop">
4 <description>Trim the edges of a clip</description>
5 <author>Dan Dennedy</author>
6 <parameter type="constant" name="top" max="5000" min="0" default="0">
9 <parameter type="constant" name="left" max="5000" min="0" default="0">
12 <parameter type="constant" name="bottom" max="5000" min="0" default="0">
15 <parameter type="constant" name="right" max="5000" min="0" default="0">