If no JMF installed in clent PC

Question

Hello All,
We are working on video chat using JMF. We are facing a strange problem, i.e the applet runs fine on our own PC but when we want to run it through client PC where no JMF is installed it raises exception of
1)can't find out linear device
2)Error occured while processing java.lang.NullPointerException
Can somebody help me in this issue.
Regards,
Rajat Dasgupta
[email protected]

Answer 1

i am deploying jmf with java web start It works on client's machine where JMf is installed.
As told in java tech forum i bundled all jmf.jars sound.jars customizer.jar mediaplayer multiplayer .jar and all dlls(native)with my own voice chat jar thr jnlp.
my jnlp is as follows (i embed it in asp page)
it is as follows..
<%Response.ContentType="application/x-java-jnlp-file"%><jnlp spec="1.0+"
codebase="http://VClient.rsrsoft.com/"
>
<information>
<title>Video Conferencing Sample Application</title>
<vendor>Powered by RSRSOFT</vendor>
<homepage href="www.rsrsoft.com" />
<description>Video Conferencing application based on JMF</description>
</information>
<offline-allowed/>
<security>
<all-permissions/>
</security>
<resources>
<j2se href="http://java.sun.com/update/1.5.0/jinstall-1_5_0-windows-i586.cab#Version=1,5,0,0"/>
<j2se version="1.5"/>
<jar href="http://VClient.rsrsoft.com/s_client.jar"/>
<jar href="http://VClient.rsrsoft.com/jmf.jar"/>
<nativelib href="http://VClient.rsrsoft.com/corelib.jar"/>
<jar href="http://VClient.rsrsoft.com/customizer.jar"/>
</resources>
<application-desc main-class="VCClient">
<argument><%=Response.write(Request.ServerVariables("REMOTE_ADDR"))%></argument>
<argument><%=Response.write(Request.queryString("IP")%></argument>
<argument><%=Response.write(Request.queryString("username")%></argument>
</application-desc>
</jnlp>
still video device can't be found.
i added these dlls again
in my code
as System.loadlibrary("jmutil")
likewise ie all for 21 dlls..
still no luck..
can anyone help me in this regards
i had tried to run JMFInit but that also couldn't find any video device without jmf installed
but when jmf is installed everything works...
where i ma going wrong can anyone take alook at..
Thnaks in advance
Archana Pachakawade
Nagpur