Re: intel vgpu framebuffer encoding & spice

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> On 2018.01.24 03:59:27 -0500, Frediano Ziglio wrote:
> > There's not currently a remote solution as far as I know.
> > The experimental patches sent on September 2016 were already using
> > correcly gst_dmabuf_* functions without texture read back, the problem
> > with GStreamer are stability and licensing.
> > Licensing as missing some package (due to license) for encoding
> > (like Intel encoding vaapi).
> 
> Could you elaborate on this? We're not awared of this issue before,
> and if this is intel gst-vaapi issue, we may see if there's possible
> solution on that.
> 
> thanks
> 

See https://bugzilla.redhat.com/show_bug.cgi?id=770371

Frediano

> > Stability as using GStreamer using libvirt causes some initialization
> > crash due to some internal library (orc) refusing to work with
> > a log an abort call.
> > 
> > We are pushing to get the required packages into the system.
> > 
> > Jonathon is working on separating GStreamer in another process
> > to make it work.
> > 
> > Uri and Snir are working on the H/W encoding/decoding part.
> > 
> > Frediano
> > 
> > > 
> > > Hi,
> > > 
> > > We'd like to know if there is a plan or any progress on proper remote
> > > display
> > > by encoding vgpu's framebuffers as video directly through dma-buf file
> > > descriptors.
> > > 
> > > The current remote display solution is using texture readback, which has
> > > performance loss.
> > > 
> > > As SPICE can use GStreamer to encode and GStreamer has APIs like
> > > "gst_dmabuf_*" which can be used to encode through dma-buf file
> > > descriptors,
> > > can SPICE support APIs to
> > > encode vgpu's framebuffer directly through dma-buf file descriptors,
> > > without
> > > any copy?
> > > 
> > > Thanks.
> > > 
> > > BR,
> > > Tina
> > > 
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