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)
The [MS-RDPESC] clearly states in section 2.2.2.18 that Status_Call's
cbAtrLen must not be used when generating Status_Return response. This
is also how FreeRDP 1.1 behaves.
My method was to find the LIBAVUTIL_VERSION_* at the commit where the
updated AV_ prefixed constants became available, add one "micro" version
to it, then if it's not at least that version, provide the unprefixed
constant. It just so happens that the same commit introduced all
the AV_* constants.
The AV_ prefixed constants have been available since
ffmpeg@def97856de6021965db86c25a732d78689bd6bb0 (2015-07-07), or version
2.8.
The non-prefixed constants are set to be removed in the next ffmpeg
release, and were removed in
ffmpeg@302554835e39b79b977ed60c9afe81b44590dfef (2016-12-05).
Since ec027bf dynamic resolution is broken when used with egfx. Before that commit
we were tracking a server sent resize by setting a DesktopResize callback. This callback
is called when the desktop is resized by the server. Anyway the problem was that when this
callback is called, the activation sequence is not always completed, which were leading to
some freeze with 2012r2 servers (sending packets before the sequence is finished).
So with the faulty commit, we are tracking server resizes by subscribing to the Actived
event, that is called at the end of a reactivation sequence, so we're sure to not send packets
when not fully activated.
Anyway the issue that shows on (#4330) is that when you use egfx, no reactivation sequence happens,
the server only sends a ResetGraphics message with the new size, and so we miss the resized event.
This fix introduces a new GraphicsReset event, makes the display channel subscribe to that event,
and react accordingly.
* fix StatusW_Call to rely and use SCardStatusW
* fix trace call in StatusW_Call - needs to be called after the sizes
are set
* unify SCardStatus functions for pcsc - let the internal function handle unicode directly
This fixes an issue with size calculations of SCardStatusW.
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.
