[Spice-devel] intel vgpu framebuffer encoding & spice

[Frediano Ziglio]

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).
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
> 
> 
> 
> 
> 
>