Error when setting sockfd of udpsink

[abue.gst.dev at googlemail.com]

Hello,

I created a socket and want to set this sockfd to udpsink so that
udpsink does not generate a socket itself with random port. But when
setting sockfd property of udpsink I only get "Error: Could not get/set
settings from/on resource." Did anybody already use sockfd of udpsink?
Is it a bug that it's not working? Just for information: my application
is linked against GStreamer 0.10.25

Thanks so far!

Tobias