Multicast rtp on Windows with multiple ethernet interfaces

[Myzhar]

Hi all,

I need to receive a multicast RTP stream on windows on a system that has multiple ethernet peripherals, but I cannot select the correct multicast interface using "multicast-iface" parameter.

Under ubuntu I can correctly receive the strean using
gst-launch-1.0 udpsrc multicast-iface=eth0 multicast-group=239.0.0.105 auto-multicast=true port=16000 ! 'application/x-rtp, encoding-name=H264, payload=96' ! rtph264depay ! h264parse ! avdec_h264 ! xvimagesink sync=false async=false

The equivalent windows version does not work:
.\gst-launch-1.0.exe udpsrc multicast-iface="ethernet_2" multicast-group=239.0.0.105 auto-multicast=true port=16000 ! 'application/x-rtp, encoding-name=H264, payload=96' ! rtph264depay ! h264parse ! avdec_h264 ! videoconvert ! autovideosink

The ethernet interface is named "Scheda Ethernet Connessione alla rete locale (LAN) 2"

If I replace the multicast with a "simple" broadcast I can receive the stream correctly

Thank you in advance
Walter

[Myzhar]

Hi all,
I'm using GStreamer 1.13.90 today and after one year and one half this
problem seems to be always present.

I'm receiving a stream from a network card and I need to re-stream it on
another network card. Under Linux it works without problems, but under
Windows the "multicast-iface" parameter is ignored.

Wiresharks confirms that the multicast stream is transmitted on the same
network card where it is received.

Does anyone have a solution?

Thank you
Walter



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