Remember the callback state to avoid calling reerdp_channels_post_connect
before the corresponding client callback has benn called.
This might happen during redirection and reconnection.
Implements the decoding of video streams using common H264 decoders. We also implement
a trivial feedback algorithm.
Sponsored by: Rangee GmbH (http://www.rangee.de)
If the display channel is available we use it to allow the user to resize the
xfreerdp window. When the window is resized we announce a new monitor layout and
the server reacts by doing a reactivation sequence to the new size.
The minimum window size is limited to 300x300 as 2012 servers crash horribly
if we send them a smaller layout.
