[Spice-devel] How to config video and image compression?

[John Y.]

Not locally, the guest run in server A.
I remote control the guest from my laptop.

 Regards,
John

2017-02-28 0:22 GMT+08:00 Uri Lublin <uril at redhat.com>:

> On 02/27/2017 04:01 AM, John Y. wrote:
>
>> I'm sorry that I misled you.
>> The guest OS is windows 7 so that I cannot use virgl.
>> I got the configuration from libvirt.org <http://libvirt.org> and I
>> don't know which configuration will work for me, so I pasted all in the
>> mail.
>>
>> Do you mean the default configuration the best suited for my case?
>>
>
>
> If you run your VM "locally" (the server and the client
> are running on the same machine) you probably do not gain
> from image-compression/video-streaming.
>
>
>
>> 2017-02-27 0:58 GMT+08:00 Uri Lublin <uril at redhat.com
>> <mailto:uril at redhat.com>>:
>>
>>     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
>>         <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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