RTP and applets

Since rtp is a push protocol (unicast, multicast, broadcast)...what to do when you are connecting via an applet from a dynamic ip?
Does one need to 'register' one's ip (of the applet) and restart the video server (i.e. jmf)?
Since server requires destination address this must be pre-known, but when you are connecting from some coffeehouse browser...and maybe via dhcp with a changing ip, how does this happen?
I've got applets on the same network showing rtp video...however for dynamic ips outside of this network???

you should get the IP of the visitor through the Webserver. There are different methods in different languages like ASP/PHP to get this done ... once you get the IP of your visitor you can send the stream to that IP. I m gona give an example of ASP for your help.
Request.ServerVariables("REMOTE_HOST")this returns the IP
have fun .. since ur using Applets i might add my question here, JMF is very large to download if do not already have it installed on ur system when someone visites your webpage (with applet using JMF), is there anyway to customize the size of this JMF.
NOTE that i need to include the sound capturing feature in my applet too, so cant use the CROSSPLATFORM version of JMF :).
THANKS

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RTP and applet restrictions

Is RTP subject to the same limitations as regular socket network communication with applets, i.e. it is not possible to communicate with another computer than the one the applet was loaded from?

>
Correct. Part of the security model, I'm afraid. An
applet can only communicate with its original host.And, I belive, on the same port at that so you can't use another protocol even if it is on the same server.

Rtp stream applet

Hi !!
I'm new in JMF. I'd like to play rtp stream on remote machine by using applet . I've searched a lot for making java applet which could receive rtp stream but coldn't find easy to understand tutorial code etc.
If you have any good links, please write it on forum or paste code.
Thank you for any answers !!!

an applet needs nothing great ...As someone who ..
- has deployed 1.1-1.4 compatible applets,
applets that interact with JavaScript, full (browser)
window applets, applets that load screensavers
and launch applications, web-started applets,
applets that change PLAF..
- has dealt with (literally) hundreds of applet
related problems on usenet, including the
investigation of applet bugs, and (particularly)
bugs caused by the MSVM.
..I can assure you.
1) Applets are anything but easy to deploy
successfully on the wilds of the internet.
2) As someone who has dealt a little with the
JMF, I can add that JMF applets add a whole
new level of complications to the mix.
Generally, the end user needs to have
pre-installed JMF in order to see JMF
based applets. Even then, the browser
might not detect the JMF classes.
It is generally far more sensible, and reliable,
to launch such projects in a free floating frame
using web-start.
Here is an example of a webstart launch.
<http://www.javasaver.com/testjs/jmf/#test3>
Note that any such web-start launch might be
optimised in a variety of ways (to download less).
The most obvious would be to use the
customizer.jar to make a cut-down version
that handles only the required sources (e.g. RTP)
and formats (e.g. MOV).

Is it possible to run a website built in Java and applet from Safari browser in iPad

Is it possible to run a website built in Java and applet from Safari browser in iPad?

Java isn't supported on the iPad

JDev3.0's JSP and Applet works on NT but doesn't work on Win98, why?

JDeveloper3.0 works fine on WindowNT machine when I run JSP files and Applet, but at home the JDeveloper3.0 cannot trigger the browser to display the result on my Windows98 machine when I run the JSP files or Applet. Why? How can I make it works for me at home. Other tools, such as J++6.0 and JBuilder work with Applet on the same machine. Who can help me?

James,
The JDeveloper 3.0 design time environment is not supported on Windows98. Some functions might work under Win98 but they are not supported.
Sorry!
Regards,
Arun

Regarding communication between JSF and applet.

Hi all,
I have to send a array of int value from JSF to the applet method and vice versa,
so how can I do that?
Is there any straight forward way is there?
Or I need to use javascript in between applet and JSF for communicating.
If this is case can give some links so that I can go through it.
What I need is, I have jsf table(grid) when I select a row from table, for the selected row I have to display selected row ID in applet and vice versa.
Any suggestion or links will be appreciated, thanks in advance.
Thanks
daya

thanks and sorry for late reply, let me go through the link,
i have tried with JavaScript, i got stuck, i need to call a JavaScript method for JSF component event listener. I searched in Google but no help regarding same.
Actually what I need is, I have JSF Component i.e. GridView(Table) and applet in a page. And for each row selection in GridView(table) I need to call a javascript method (with column value), and vice versa.
Can you give suggestion or any link so that can proceed further.
and i am able to communicate between applet which are included in the page
Thanks
Daya

About rtp and jmf

Hello,I'm now working on my graduation paper which refers to the RTP,and JMF matter.Because this is my first time to deal with this, i don't know much about that.And what i'm now trying to transfer is a file like *.au by using the sample
code VideoTransmit.java. But it always says
-cannot create processor
(processor is an interface)
I don't know why.
can anyone help me?
Thank you.

.au is a sound file, VideoTransmitter wants a video file

Adf faces table and applet in jsf page navSubmit not working in IE

Hi
I have a jsf page with adf faces table and applet , previous / next navigation is not working for my table when i add the applet to the same page , it is working in firefox but not in IE .
I have no clue what to change , can any one help. below is the sample code for my jsf page
Best regards
Srinivas
Code follows, not sure how to format the code here
<h:form>
<af:panelPage title="Test Adf faces table and applet">
<af:panelHeader text="Orders">
<af:table value="#{bindings.Orders.collectionModel}" var="row"
rows="#{bindings.Orders.rangeSize}"
first="#{bindings.Orders.rangeStart}"
emptyText="#{bindings.Orders.viewable ? 'No rows yet.' : 'Access Denied.'}"
id="orders" >
<af:column sortProperty="order"
headerText="#{bindings.Orders.labels.order}">
<af:commandLink text="#{row.order}"
id="orderNumber"
onclick="showOrder(#{row.order})"
disabled="false"/>
</af:column>
               </af:table>
</af:panelHeader>
<af:objectSpacer width="10" height="10"/>
<af:panelBox>
<f:verbatim>
<div id="appletDiv">
                    <applet here />
                    </div>
</f:verbatim>
</af:panelBox>
</af:panelHorizontal>
</af:panelPage>
</h:form>

Sorry about the format, it looked okay when i previewed it , now it looks like terrible

Package and applet

I am reading about Zhiqun's Java Card book,
and I wonder about the relationship between a package and an applet.
Am I right in saying:
1. An applet comprises one or several packages
2. A package only belongs to one applet
3. One package is one group context
Hope to get your guidance.
B.R.
RuHE

Refers to your assertions,
Please help me..
Case 1
I have package A. Package A contains 2 class (A1 & A2 ) and 2 package (B and C).
Then, I make 2 applet, they are applet-B (for package B) and applet-C (for package C).
When simulationi in JCWDE, applet-B and applet-C have no problem. But, in CREF, applet throw exception and status word is 6443.
Case 2
When I try to include class A1 and A2 into package B and C, so package A is empy. Surprisingly, applet-B and applet-C can run in CREF and JCWDE. I don't know, what's wrong in case 1.
Can you give me explanation or explanation about problem in above...?
Best Regards,
Wiwit

RTP and RTSP

I have 2 question want to ask:
1)Is RTP and RTSP can pass through firewall?
Or can you tell me which TCP port no. be used for RTP and RTSP protocol?
2)Also,Is this possible to transfer video data thro' http protocol?

1a: Yes , (If firewall rules permit)port 554 for RTSP (http://www.chebucto.ns.ca/~rakerman/port-table.html)
1b: No, (if firewall rules disallow)
2:(see answers above)

Appletviewer and applets

Hi!
I am using j2sdk 1.4.0 under linux. I have been creating an applet. The screen refresh is tied to a timer. However, the screen refresh gets very slow after 2 - 5 seconds after the applet has been started. If I move mouse in applets window, the refresh gets fast during that time.
The applet code is very simple: timer calls repaint method of the applet and applet's paint method just draws new picture to the screen using drawImage.
Anyone run into same problem? What could be wrong?
Thanks
Sammy

ok but whats the problem the fast refreshing??
if so then u have two options:
1)double buffering
2)if u dont need the re-paint let the java do it for u dont overide it
denny

Can I use AWT and Applets in a J2EE project???

Hi,
I adore applets and the package AWT... And I would like to know if some way exists to integrate my applet with my application J2EE... I want to use these in the vision tier in a J2EE(EJB) project...
How can I make that my applet acts as an observing process of my model??? If the JVM will be informed on any alterations in the model will be the JVM of the server while my applet will be being executed for the JVM of browser...
[]'s
Ary Junior

I have a J2EE application, for which I have a module which is used by system administrators. this module is completly written in Java swing.
and it does talk to my EJBs.
If you don't have a firewall in your application, then you can directly make your applications in awt, swing and applets talk to EJBs. if you do have a firewall, then just write a web-service wrapper over your EJBs and other J2EE components and use them from desktop applications.
It seems that you want to implement a kind of a applet based monitor application for your J2EE EJBs on the server. Applets cannot directly monitor your EJBs.
Create a new module which has a service which acts as an event listener on the server. each j2ee component on the server notify it if there is a change to them. this service, can then write the data realted to the modification on a socket which is continiously being read by the applet. So you can implement a kind of a monitor for J2ee apps with applets.
hope this helps.
regards,
Abhishek.
PS:How did you manage to adore the AWT ;-) ? I found that it sucks (good performance.. very poor lnf) ... java swing sucks too (very poor performance ... avaerage lnf).

Xml and applets

I'm trying to use Sax in an applet to read an xml file. My application works fine, but when I convert it to an applet, I get errors.
Does anybody know where I can get info and examples using Xml, Sax, and Applets? Any info would be helpful. Thanks.

Probably nothing to do with XML. You use it in an applet precisely as you would use it in an application. You are probably running into one of the usual applet problems. Of course, this is all guesswork without any idea of what errors you are actually having.

Unable to execute and applet

I'm new programmer in java. There are somme applet that run with appletwier
but witch do not run with Internet explorer and Netscape. I'm always getting
this error : 'Class not found'. I want to know all the steps to run and applet
using Netscape or Internet explorer.
I'm french speaking. Sorry if my english is poor.
Thank's for your answers.

I think you can't solve your problem.
The fact is that appletviewer supports the java classes you have installed with the sun's jdk... if you are using jdk 1.3.1, it uses the java libraries included in your installed distribution. IE virtual machine, instead, uses its own library, so you can't use in your applets classes like: swing, graphics2d, and so on...
I know that it's not a great help. Sorry!
However, if someone could tell us how to include these classes in our CABs/JARs... i think we are really happy! :-)
Ciao,
Paolo.

Looking for WEB HOST that I can do servlets and applets on

Hello everyone,
Does anyone know where I can buy web space that will allow me to run a servlet and applet from. I have been shopping today and I had difficutly finding one.

Hmm.... well duffymo. I have gone to a number of sites through Google looking for web hosting sites that support java and I must be picking all the wrong ones to look at because I have only found one in Fremont out of 25-30 that I have looked at.
I guess duffymo you can say what you want in a forum, but usually answering a question with a question isn't very helpful nor appreciated.

RTP and applets

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