[AG-TECH] ScreenStreamer error
Andrew Rowley
Andrew.Rowley at manchester.ac.uk
Wed Jun 8 06:28:03 CDT 2005
Hi,
This will depend on a few factors:
1) Ensure both computers have multicast connectivity (or use a bridge).
2) Ensure that you are using the same venue for both.
3) If the sending computer is slow i.e. the sending frame-rate is below 1
fps, you might need to wait a bit at the receiver for enough data to get
through for a single frame (this is a JPEG video requirement).
Andrew :)
============================================
Access Grid Support Centre,
RSS Group,
Manchester Computing,
Kilburn Building,
University of Manchester,
Oxford Road,
Manchester,
M13 9PL,
UK
Tel: +44(0)161-275 0685
Email: Andrew.Rowley at manchester.ac.uk
> -----Original Message-----
> From: Natalia Costas Lago [mailto:natalia at cesga.es]
> Sent: 08 June 2005 10:42
> To: Andrew Rowley
> Cc: ag-tech
> Subject: Re: [AG-TECH] ScreenStreamer error
>
>
> Hi Andy,
>
>
> Now the window pops up, but i cant c the stream from other computer. I'll
> try later to send.
>
> ----- Original Message -----
> From: "Andrew Rowley" <Andrew.Rowley at manchester.ac.uk>
> To: "'Natalia Costas Lago'" <natalia at cesga.es>; "'ag-tech'"
> <ag-tech at mcs.anl.gov>; "'Mike 'Mike' Jones'" <mike.jones at manchester.ac.uk>
> Sent: Tuesday, June 07, 2005 11:41 AM
> Subject: RE: [AG-TECH] ScreenStreamer error
>
>
> > Hi,
> >
> > I have just done some experimenting and have found the solution.
> >
> > Firstly, you need to set some environment variables as described in:
> > http://java.sun.com/products/java-media/jmf/2.1.1/setup-linux.html
> >
> > You absolutely need the JMFHOME and LD_LIBRARY_PATH variables and these
> > must
> > be set so that they can be read by the browser used to launch
> > ScreenStreamer. The CLASSPATH variable appears to be unimportant.
> >
> > Second, you need to copy/link jmf.jar to the ext directory of the JRE
> that
> > you are using to run ScreenStreamer. This will depend on where you
> > installed Java 1.5 and if you installed the JRE or the JDK. For
> example,
> > I
> > installed Java JDK in /usr/java/jdk1.5.0_01/ and JMF in
> > /usr/java/JMF-2.1.1e. I therefore had to copy/link
> > /usr/java/JMF-2.1.1e/lib/jmf.jar to /usr/java/jdk1.5.0_01/jre/lib/ext/.
> >
> > Third, you need to make sure that your browser launches the correct
> > version
> > of Java. When I was using Mozilla, it prompted me for an application to
> > open the application/x-java-jnlp-file. I chose
> > /usr/java/jdk1.5.0_01/bin/javaws. This therefore uses java version 1.5.
> > If
> > you have installed java previously, and are not given this prompt, you
> may
> > need to go to "Edit"-->"Preferences" then select "Helper Applications"
> > from
> > the "Navigator" list, then select "application/x-java-jnlp-file" and
> > select
> > "Edit". From here, you can change the application used to open the jnlp
> > file.
> >
> > Let me know if you have any more problems with this.
> >
> > Andrew :)
> >
> > ============================================
> > Access Grid Support Centre,
> > RSS Group,
> > Manchester Computing,
> > Kilburn Building,
> > University of Manchester,
> > Oxford Road,
> > Manchester,
> > M13 9PL,
> > UK
> > Tel: +44(0)161-275 0685
> > Email: Andrew.Rowley at manchester.ac.uk
> >
> >> -----Original Message-----
> >> From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov] On
> >> Behalf Of Andrew Rowley
> >> Sent: 06 June 2005 17:00
> >> To: 'Natalia Costas Lago'; 'ag-tech'
> >> Subject: RE: [AG-TECH] ScreenStreamer error
> >>
> >> Hi,
> >>
> >> It looks like Java Media Framework is not installed, or is not in the
> >> classpath of the Java Runtime Environment you are using to launch this.
> >> Check that the file jmf.jar is in your Java classpath - particularly
> note
> >> that there can be more than one JRE installed - you want the one that
> is
> >> run
> >> by the browser that is launching the code. I *think* this can be done
> by
> >> copying the jmf.jar file to the java lib directory.
> >>
> >> I will do some experimenting and get back to you. Let me know if you
> get
> >> it
> >> working before this.
> >>
> >> Andrew :)
> >>
> >> ============================================
> >> Access Grid Support Centre,
> >> RSS Group,
> >> Manchester Computing,
> >> Kilburn Building,
> >> University of Manchester,
> >> Oxford Road,
> >> Manchester,
> >> M13 9PL,
> >> UK
> >> Tel: +44(0)161-275 0685
> >> Email: Andrew.Rowley at manchester.ac.uk
> >>
> >> > -----Original Message-----
> >> > From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov] On
> >> > Behalf Of Natalia Costas Lago
> >> > Sent: 06 June 2005 16:19
> >> > To: ag-tech
> >> > Subject: [AG-TECH] ScreenStreamer error
> >> >
> >> >
> >> >
> >> > Running the ScreenStreamer under linux (Fedora Core 2) I got this
> >> > error:
> >> >
> >> > * "General" tab:
> >> >
> >> > "An error occurred while launching/running the application.
> >> >
> >> > Title: Memetic ScreenStreamer
> >> > Vendor: Memetic
> >> > Category: Unexpected Error
> >> >
> >> > Unexpected exception: java.lang.Exception"
> >> >
> >> > * "Launch file" tab:
> >> >
> >> > <jnlp spec="1.0+"
> >> > codebase="http://memetic-vre.net/software/ScreenStreamer">
> >> > <information>
> >> > <title>Memetic ScreenStreamer</title>
> >> > <vendor>Memetic</vendor>
> >> > <homepage href=""/>
> >> > <description>Memetic ScreenStreamer</description>
> >> > <description kind="short">A tool for sharing your
> >> > screen</description>
> >> > <offline-allowed/>
> >> > </information>
> >> > <security>
> >> > <all-permissions/>
> >> > </security>
> >> > <resources>
> >> > <j2se version="1.5.0+"/>
> >> > <jar href="ScreenStreamer.jar"/>
> >> > </resources>
> >> > <application-desc main-class="ScreenStreamer">
> >> > <argument>239.194.200.200/1234/127</argument>
> >> > </application-desc>
> >> > </jnlp>
> >> >
> >> > * "Exception" tab:
> >> >
> >> > java.lang.Exception
> >> > at com.sun.javaws.Launcher.continueLaunch(Unknown Source)
> >> > at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
> >> > at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
> >> > at com.sun.javaws.Launcher.run(Unknown Source)
> >> > at java.lang.Thread.run(Unknown Source)
> >> >
> >> >
> >> > Any hint about the problem??
> >> >
> >> > -----------------------------------
> >> > Natalia Costas Lago
> >> > email: natalia at cesga.es
> >> >
> >> > Centro de Supercomputacion de Galicia (CESGA)
> >> > Avenida de Vigo, s/n Campus Sur
> >> > 15706 Santiago de Compostela - SPAIN
> >> > Tel: +34 981 56 98 10
> >> > Fax: +34 981 59 46 16
> >> > http://www.cesga.es/
> >> >
> >>
> >>
> >
> >
> >
>
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