On 2020-01-02 20:36 +0000, Ken Moffat via blfs-dev wrote:
> On Fri, Jan 03, 2020 at 12:58:22AM +0800, Xi Ruoyao via blfs-dev wrote:
> > On 2020-01-02 00:26 +0000, Ken Moffat via blfs-dev wrote:
> > 
> > I have a new Core i7-1065G7 laptop.  The legacy libva-intel-driver just
> > doesn't
> > work on Gen 11 graphic so I tried the new iHD driver.
> > 
> > Gstreamer refuses to use iHD driver with libva (by default it only utilizes
> > libva-intel-driver).  I tried to force Gstreamer to use iHD.  It works with
> > "gst-play-1.0" but breaks video replay in WebKitGTK (I tried 1080p videos on
> > YouTube and Bilibili).  So finally I had to build intel-media-sdk and gst-
> > msdk
> > plugin (in gst-plugins-bad) to use the Gen 11 iGPU to accelerate video
> > replay.
> > 
> 
> Useful to know, as with everything to do with media
> encoding/decoding the situation seems to be complex.
> 
> > My kernels (one from Arch and one built by myself) don't try to load GuC/HuC
> > firmwares.  /sys/kernel/debug says my iGPU doesn't need HuC, and GuC is
> > disabled.
> > 
> 
> OK, thanks for that.  Looking a bit more deeply at what I regard as
> a very hard to follow set of documentation (like some others, it's
> probably fine if you already understand all the details) I see that
> HuC is only needed for Hardware Encoding, Low Power
> Encoding(VDEnc/Huc) on Skylake and later, but only for limited AVC
> and jpeg on most existing platforms.
> https://github.com/intel/media-driver/blob/master/docs/media_features.md#supported-video-processing-cscscaling-format

Gstreamer msdk plugin is still causing problems in Web browser.

I'll just use my CPU to decode videos, for now.
-- 
Xi Ruoyao <xry...@mengyan1223.wang>
School of Aerospace Science and Technology, Xidian University

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