[Spice-devel] [RFC spice-gtk 0/1] Direct rendering

Snir Sheriber ssheribe at redhat.com
Sun Mar 11 09:44:57 UTC 2018


This patch utilize the GstVideoOverlay interface when the
client is running under x window system and it receives a
full-screen stream that is decoded using gstreamer (gst =>
1.9.0)

Some notes
- It currently checks for full screen but probably a msg
  says it is streaming mode would make more sense (is it?
  i think frediano has a patch for that)
- Would it be possible to avoid spice rendering if it is not
  a full screen?
- Does rendering directly from the decoder (channel-element)
  breaks spice architecture?
- This currently seems stable and working well, it decreases
  cpu (no pixman-cairo stuff) mainly in high resolutions but
  needs to be tested with different plugins, windows...
- Not sure what is needed in order to make it to support
  multi-monitor in the future.
- Currently works only with x (xid is transferred from
  spice-widget to spice-gst-decoder which sets the overlay)

I'd be happy to hear more comments, ideas, patches ;)

Thanks, Snir.


Snir Sheriber (1):
  Gstreamer: Use GstVideoOverlay if possible

 src/channel-display-gst.c | 71 +++++++++++++++++++++++++++++++++++++----------
 src/channel-display.c     | 54 +++++++++++++++++++++++++++++++++++
 src/spice-widget.c        | 46 ++++++++++++++++++++++++++++++
 3 files changed, 156 insertions(+), 15 deletions(-)

-- 
2.14.3



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