I was changing width and height but it's only change resolution in openlaszlo application.
<videoview id="vr" url="" type="rtmp" align="center">
<camera id="ca1" name="ca1" width="640" height="480" show="false" />
<microphone id="mi1" name="mi1" capturing="false"/>
</videoview>
Maybe I have to change somthing in Red5 configuration ! Robert Pieprzny from Poland (PCG)
