Dear Sir: Multicast applications on Windows platform seem to have a problem. After doing some experiments with your test program, I found the openRTSP agent compiled with VC6 fails to receive video stream multicast by testMPEG4VideoStreamer on Linux(that is, getNextFrame() never get a frame after RTSP PLAY response). However, the cross-compiled(mingw32) version of openRTSP succeeds! Since VLC for win32 is also cross-compiled, it also has no problem.
Using wireshark(previous ethreal) to capture the network packets, I found that the cross-compiled version sent IGMP V3 membership message to join the multicast group but the VC6 compiled version doesn't. I am not familiar with Windows socket programming but there seems something missing or wrong. Do you ever get into this trouble and solve it? BTW, all the tests link to the latest live555. BR. Brain Lai
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