How to use rtp to transmit data other than audio / video

hi all,
as you all know the jmf is based upon a specific paradigm:
data source -> player (processor) -> renderer.
i am not being very precise on this but that does not matter.
i want (for testing purposes) to create a tool that transmit some custom data
(maybe even nonsense) over the rtp packages.
so as you may now see this would not work quite right with the mentioned
paradigm since there would be no audio/video to play-process-render.
so how would i go about to utilise the rtp abilities of the jmf without adhering
to the whole player-whatever shebang.
what i have figured out is that there is a way to transmit custom rtp-payload.
there is even an example on the jmf solutions page but even this one uses
an audio format (pcm).
i hope what it is clear to the dear reader what i want to do and maybe some-
one can help me with this.
p.s. i am not one who wants to get the whole source code (like so many
others do on this forum) for a project someone may have done on this, what
i need is a hint in the right direction.
thanks for your attention and thanks in advance for any useful hints.

Hi, I would like to make some comments that may help
you to find out how to manage your problem.
If you have a look to the JMF 2.0 API, Guide,
"Understanding the JMF RTP API", Figure 8-2
http://java.sun.com/products/java-media/jmf/2.1.1/guide/RTPArchitecture.html#105171
you can notice that the processor is not essential.
In this pciture, the processor is inserted between two datasources,
to let you perform some operations on the media that is read from
a file or a capture device.
But the SessionManager just needs a DataSource.
With what you say, I can imagine that you want to transmit
real-time data that is not related to standard media formats.
In principle, the only think you must do is to extend the
javax.media.protocol.DataSource abstract class and implement
it at your own convenience.
Once your custom class is written, you can call the SessionManager's
method createSendStream(DataSource ds, int streamindex) passing
for argument an instance of your mentioned custom implementation.
Hope this helps.
Good Luck ;-) !

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