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

Clem Taylor clem.taylor at gmail.com
Fri May 5 21:14:25 CEST 2006


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).

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.

                                  Any ideas,
                                  Clem

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