This change adapts pion/ice to use a new interface for most network
related operations. The interface was formerly a simple struct vnet.Net
which was originally intended to facilicate testing. By replacing it
with an interface we have greater flexibility and allow users to hook
into the networking stack by providing their own implementation of
the interface.
It isn't possible to send media if a MediaEngine has no codecs. This
catches a common misconfiguration issues that users find themselves in.
Resolves#1702
ReadDeadline is supported by RTPReceiver but not RTPSender. This
commit attempts to provide similar method for RTPSender.
If SetReadDeadine is called with:
- an empty time.Time: it will clear all previous set deadline.
- a non-empty time.Time: it will abort all pending "ReadRTCP" calls if
the specified time is up.
Previously, Reading RTP or RTCP packets from a peer
would block until a packet was received, or the
connection was terminated. This change allows you to
set a deadline, after which the read function will
return a timeout error and you can get on with other
things.
Resolves#1553
