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Description of problem:
The code upstream had a good amount of work and testing in order to enable hardware decoding support for video streaming, specifically for h264 on intel based systems, using vaapi.

- Related to bug 1471000

Shortlog: channel-display: implement preferred video codec msgc
Commit  : 71bdeec42297dbba8765a5180c83dc96790d4279
-> New API, based on new protocol message for ranking video codecs preference for encoding based on client's preference for decoding.

Shortlog: display-gst: Use Playbin for GStreamer 1.9.0 onwards
Commit  : ed697dd7fa165632bd0cbdb34c971c8001c433fa
-> Changing GStreamer's pipeline to detect available video decoders instead of relying on a subset of plugins which was hardcoded.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0672