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RTSP stream, what is possible?

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surferboy
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Joined: 2007-04-11

Hi.
I want to create a java application on mobile devices that makes it possible to send(stream) live video to a server(streaming server).
So far i have only discovered java applications that makes it possible to receive the video stream to the phone if the phone supports the rtsp protocol. Correct me if im wrong.

Im wondering if it is possible to do it the other way. Filming on the phone and do a live stream to the server.

any help would be much appreciated //Christian

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Hinkmond Wong

phonemeadvanced@mobileandembedded.org wrote:
> Hi.
> I want to create a java application on mobile devices that makes it possible to send(stream) live video to a server(streaming server).
> So far i have only discovered java applications that makes it possible to receive the video stream to the phone if the phone supports the rtsp protocol. Correct me if im wrong.

That's what I know also (you can receive video only, not send) using JSR
135 MMAPI, DataSource:

http://java.sun.com/products/mmapi/overview.html

> Im wondering if it is possible to do it the other way. Filming on the phone and do a live stream to the server.

You could technically create a proxy on a back-end server where you
would open a HTTP connection, and stream the video data there to that
server using HTTP POST but that probably won't give you a nice smooth
stream since you'd be using HTTP instead of something more appropriate
like rtsp.

But, being on a cell phone means your networking will be limited to what
the carriers (like Sprint, AT&T, Verizon, T-Mobile, etc.) say you can
do. Right now, they say you can do only limited functionality on their
wireless networks, like HTTP or their proprietary receive video streaming.

If you were on a notebook PC using WiFi, that would be a different story
and there you could (depending on your firewall settings) use the TCP/IP
stack any way you want (like use rtsp), instead of being in a walled
garden network that all the cell phone carriers have where you can
pretty much only use HTTP.

Hinkmond

> any help would be much appreciated //Christian
> [Message sent by forum member 'surferboy' (surferboy)]
>
> http://forums.java.net/jive/thread.jspa?messageID=211966
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