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Sameera Abeysinghe
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Hi all,
I am coding video conferencing software. And I am using the and files downloaded from sun site as code samples. Following is how I run the AV files

java AVTransmit2 vfw://0 45728

java AVReceive2

I connect to the internet using a dialup connection (download speed 1 kbps) and I try to send a live captured video to my other computer through the internet.
But the IP I am transmitting to is not a normal IP. It is a dynamic IP given by the ISP to the ADSL router at my home net work (I have 2 computers and ADSL inter net connection at home)

First I thought that this will not work because I am listing from a computer behind the router (in side LAN)

While chatting I fond out that what I thought is wrong and that Av files work. But it takes a long time to identify the sender. So I change the default send and receive values (60 seconds to 6000 seconds) and retried.
After about 3 minutes this massage showed on the receiver side
A new participant had just joined: ok4@sameera
And keep on waiting
I wait for about 10 to 15 minutes but the video never showed up.

But only ones only the first frames show on the receiver side and nothing else.

1.what is wrong with this I don�t think it is an a error with code (it worked fine in LAN) it a problem with the connection(transmitting from a dialup connection with 1 kbps download speed) the connection I am testing video transfer is too slow, then what is the minimum speed I need to test this
4.a friend of mine told me that by reducing the frame rat I might get video but I couldn�t find a place to change the frame rate
5.the AV files is capable of sending files can you tell me the dos command I must type to send the file. Simply replacing the vfw://0 with file:filename give a couldn�t create datasink error
6.then I try the file by typing
java AVTransmit3 42050 file:filename
but it give a error
D:\Sharing\New_JMF>java AVTransmit3 42050 file:/p1.mpeg
Exception in thread "main" java.lang.NumberFormatException: For input string: "file:/p1.mpeg"
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.valueOf(Unknown Source)
at AVTransmit3.<init>(
at AVTransmit3.main(


You will find entrees related to this entry all over the site try finding
Video conference, rtpsockets, JMF

Thanks Alot
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