The API forced uvgRTP to both bind to local port even if user does not
need or want this and it also expects the user to know the remote
remote address which is not always possible.
This commit adds API to session for specifying only one port when
creating media_stream. This commit also adds RCE_SEND_ONLY and
RCE_RECEIVE_ONLY flags which can be used to prevent binding and specify
the meaning of single address and port parameters.
I've already created one bug by not being able to distinguish between
different flags. uvgRTP has four types of flags: enable, context, rtp
and socket. I'm planning on adding one more flag type which makes this
a good point to rename all flags.
Heikki Tampio
Joni Räsänen