On 02/23/2017 09:43 AM, John Y. wrote:
I learned that video and image compression can be chosen server
initiation from https://www.spice-space.org/spice-user-manual.html.
How can I change the configuration for the compression ?
I want to play 720p video smoothly in the guest(some loss or distortion
does not matter).
What is the best configuration for me?
I got that I can change option of graphics in libvirt like:
<graphics type='spice' port='-1' tlsPort='-1' autoport='yes'>
<channel name='main' mode='secure'/>
<channel name='record' mode='insecure'/>
<image compression='auto_glz'/>
<streaming mode='filter'/>
<clipboard copypaste='no'/>
<mouse mode='client'/>
<filetransfer enable='no'/>
<gl enable='yes' rendernode='/dev/dri/by-path/pci-0000:00:02.0-render'/>
</graphics>
Which option should I change ?
Can I also customize more parameter about the vga(such as fps, bitrate
...) ?
Regards,
John
Hi John,
What is the guest OS?
According to your configuration above, I assume you are
running the VM locally on your workstation.
Also I see you are trying to use virgl (gl enable=yes)
If this is the case, for Linux guests, you need not to worry about
image/video compression.
Just make sure you are using virtio-vga and that the
given 'rendernode' is correct and accessible,
and that you have new enough qemu-kvm/spice-server and
remote-viewer or virt-manager.
Regards,
Uri.
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