[Spice-devel] Adaptive video compression by default?
mkrcmari at redhat.com
Thu Jun 16 10:50:46 PDT 2011
----- Original Message -----
> From: "John A. Sullivan III" <jsullivan at opensourcedevel.com>
> To: "Marian Krcmarik" <mkrcmari at redhat.com>
> Cc: spice-devel at lists.freedesktop.org
> Sent: Thursday, June 16, 2011 7:18:18 PM
> Subject: Re: [Spice-devel] Adaptive video compression by default?
> On Thu, 2011-06-16 at 12:42 -0400, Marian Krcmarik wrote:
> > ----- Original Message -----
> > > From: "John A. Sullivan III" <jsullivan at opensourcedevel.com>
> > > To: spice-devel at lists.freedesktop.org
> > > Sent: Thursday, June 16, 2011 6:34:49 PM
> > > Subject: [Spice-devel] Adaptive video compression by default?
> > > Hello, all. One of the technologies which completely intrigued us
> > > about
> > > SPICE is the adaptive video compression. We thought HP had the
> > > lock on
> > > that!
> > >
> > > Is that enabled by default? We are trying to stay with Fedora 15
> > > out
> > > of
> > > the box as much as possible so are running libvirt 0.8.8 and I do
> > > not
> > > think libvirt supports the compression parameters until 0.9.2.
> > "Spice supports variable compression settings for audio, images and
> > streaming, since 0.9.1. These settings are accessible via the
> > compression attribute in all following elements: image to set image
> > compression (accepts auto_glz, auto_lz, quic, glz, lz, off), jpeg
> > for JPEG compression for images over wan (accepts auto, never,
> > always), zlib for configuring wan image compression (accepts auto,
> > never, always) and playback for enabling audio stream compression
> > (accepts on or off).
> > Streaming mode is set by the streaming element, settings it's mode
> > attribute to one of filter, all or off, since 0.9.2."
> > - http://libvirt.org/formatdomain.html
> Exactly. So I am assuming our version of libvirt does not support
> parameters and thus we are using defaults. What are the defaults? No
> great pressure for anyone to answer unless one knows it off the top of
> their head. We'll keep experimenting to find out. Thanks - John
Please see man qemu.
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