[Libva] [ANNOUNCE] libva/libva-intel-driver 1.7.3.pre1

[Xiang, Haihao]

Hi all,

libva 1.7.3 and libva-intel-driver 1.7.3 are planned for release within
the next two weeks. Please report any critical problem or regression
against v1.7-branch or the following test packages:

libva
=====
https://www.freedesktop.org/software/vaapi/testing/libva/libva-1.7.3.pr
e1.tar.bz2

* Bump VA API version to 0.39.4
* API: add support for bitrate control per temporal layer
* API: update the usage for framerate in VAEncMiscParameterFrameRate to
  support non-integer frame-rate
* Add has_prime_sharing flag in VADriverVTableWayland to indicate if  
  buffer sharing with prime fd can be used in the backend driver

libva-intel-driver
==================
https://www.freedesktop.org/software/vaapi/testing/libva-intel-driver/l
ibva-intel-driver-1.7.3.pre1.tar.bz2

* Add support for HEVC 10bit encoding on KBL
* Integrate the Google Test Framework for unit testing
* Add support for bitrate control per temporal layer for SVC-T
* Fix VA_STATUS_ERROR_UNIMPLEMENTED when sharpening with I420
  surface                                                              
  (https://bugs.freedesktop.org/show_bug.cgi?id=96987)
* Fix crop issue when sharpening with NV12 surface
  (https://bugs.freedesktop.org/show_bug.cgi?id=96988)
* Fix GPU hang issue when using encoding with low power on SKL GT3+
  (https://bugs.freedesktop.org/show_bug.cgi?id=97872)


Thanks
Haihao