[vlc] Re: problems with multiple multicast rtsp streams on the same port...

[Ross Finlayson]

At 12:14 PM 5/5/2006, you wrote:
>I have a MP4 video source that is serving out two streams of multicast
>RTSP video. The two streams are coming from different destination
>multicast addresses, but the same source/destination port.
>
>For example:
>192.168.50.112:47806 -> 224.16.54.9:47806      [rtsp://192.168.50.112/mpeg0]
>192.168.50.112:47806 -> 224.16.54.12:47806    [rtsp://192.168.50.112/mpeg1]
>
>I open up two vlc windows, one for each rtsp url and it seems that the
>video from the two streams are being interleaved together. I see a
>corrupt mix of video from the two streams.
>
>I'm using a linux (FC4 2.6.16) build of vlc (r15197) with the
>2006.03.16 live code. I don't see this problem with 0.8.4a win32 (in
>vmware on the same linux box) and I don't remember seeing this problem
>with an older linux build (not sure which one).

As your testing shows, this is an operating system problem.  Some OSs 
allow you to receive data on the same port, using different multicast 
addresses; others do not.

>If the streams are on different destination ports everything works
>fine, but to be compatible with some 3rd party software, we need use
>the same port for both streams.

If you want to continue using this OS version, then you may have no 
choice here....


	Ross Finlayson
	Live Networks, Inc. (LIVE555.COM)
	<http://www.live555.com/>

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