rtpsink: set properties on children early
The properties on the udpsink/udpsrc elements need to be set before there is any state change. If not, in a network without default gateway, udpsink tries to bind an a NULL interface and fails.
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The properties on the udpsink/udpsrc elements need to be set before there is any state change. If not, in a network without default gateway, udpsink tries to bind an a NULL interface and fails.