[Spice-devel] KVM-SPICE: View youtube videos smoothly

[Oscar Segarra]

Hi!

Thanks a lot for your clarifications.

Nevertheless, I thought that spice protocol was suited to work over the
Internet. Is it right?

Is there any document/advice for configuring spice server (or kvm guest) to
work properly over the Internet?

Thanks a lot!


2017-03-09 12:43 GMT+01:00 Frediano Ziglio <fziglio at redhat.com>:

>
>
> It's not a small addition. Usually wifi has a much higher latency then
> wired lan. For comparison on lan usually you
> have 2-4 ms latency while on wifi 80-100 ms unless you have powerful and
> quite idle network infrastructure
> (but still higher than wired).
>
> Unfortunately currently the protocol implementation is quite latency
> dependent.
>
> I don't think the latency here is an issue if you are using a recent
> encoder (here some client
> guy should help on how to know the encoder used).
>
> Sorry, was meaning bandwidth in the above sentence.
>
> About the lag recently we detected another issue in the protocol
> implementation, hope
> we can tune and fix it in a short period.
>
> Frediano
>
>
> I'd like to add that the connection is via wi-fi (54Mbps).
>
> Is it enough for spice videos?
>
> thanks a lot.
>
> 2017-03-08 19:14 GMT+01:00 Oscar Segarra <oscar.segarra at gmail.com>:
>
>> Hi,
>>
>> Youtuve videos from virt-manager (locally) has an acceptable bejaviour...
>> but If I try to connect from the LAN, the behaviour is not acceptable...
>> the sound goes much faster than the image.
>>
>> I have increased the video memory up to 64MB but I have not experienced
>> any improvement.
>>
>> Is there any way to diagnose this lag problems?
>>
>> Thanks a lot.
>>
>> 2017-03-03 22:45 GMT+01:00 Oscar Segarra <oscar.segarra at gmail.com>:
>>
>>> Hi,
>>>
>>> After some research, I have been able to install a newer version from:
>>>
>>> https://fedorapeople.org/groups/virt/virtio-win/direct-
>>> downloads/archive-virtio/virtio-win-0.1.133-1/
>>>
>>> Now, Video has experienced a nice improvement... but sound still
>>> "hangs"...
>>>
>>> Is there any advice to customize sound?
>>>
>>> Thanks a lot.
>>>
>>> 2017-03-03 21:45 GMT+01:00 Pavel Grunt <pgrunt at redhat.com>:
>>>
>>>> On Fri, 2017-03-03 at 20:19 +0100, Oscar Segarra wrote:
>>>> > I must say the version is weird.
>>>> > It is the version that comes with 2K8. I have not been able to find
>>>> > the W10 qxl driver... ¿Can you paste the link?
>>>> >
>>>> It is on our page
>>>> https://www.spice-space.org/download.html#windows-binaries
>>>>
>>>> Windows QXL-WDDM-DOD driver
>>>>
>>>> > Beside that which versions (kvm, spice) are you using? Are you using
>>>> > a recent viewer?
>>>> >
>>>> > qemu-kvm.x86_64                10:1.5.3-126.el7
>>>> >           @base
>>>> > qemu-kvm-common.x86_64         10:1.5.3-126.el7
>>>> >
>>>> > spice-glib.x86_64              0.31-6.el7
>>>> >           @base
>>>> > spice-gtk3.x86_64              0.31-6.el7
>>>> >           @base
>>>> > spice-protocol.noarch          0.12.11-1.el7
>>>> >          @base
>>>> > spice-server.x86_64            0.12.4-19.el7
>>>> >          @base
>>>> >
>>>> > Regarding to the viewer version:
>>>> >
>>>> > remote-viewer.exe version 5.0-256
>>>> >
>>>> > Thanks a lot!
>>>> >
>>>> >
>>>> > 2017-03-03 18:04 GMT+01:00 Frediano Ziglio <fziglio at redhat.com>:
>>>> > > Hi,
>>>> > >
>>>> > > In my environment I have a W10 guest running on a centos 7 KVM
>>>> > > host.
>>>> > >
>>>> > > I have installed the following QXL Video driver:
>>>> > >
>>>> > >
>>>> > >
>>>> > > But when I try to see (on LAN) a youtube video, it doesn't play
>>>> > > smoothly, even video and sound stops for a while and continues a
>>>> > > little bit later. It looks I can see the video rendering as i can
>>>> > > see a the half of one frame and the half of the following frame on
>>>> > > the same "image".
>>>> > >
>>>> > > If I minimize the internet explorer (or chrome) to the task-bar
>>>> > > image and sound goes better (not the perfect).
>>>> > >
>>>> > > ¿Is there any advice to improve video and sound experience in KVM
>>>> > > with spice?
>>>> > >
>>>> > > Thanks a lot,
>>>> > >
>>>> > > I must say the version is weird.
>>>> > > We released a Windows 10 driver not much ago.
>>>> > > Beside that which versions (kvm, spice) are you using? Are you
>>>> > > using a recent viewer?
>>>> > > New versions implements different code which requires less
>>>> > > bandwidth (should not
>>>> > > be a big problem with LAN but you would make sure).
>>>> > >
>>>> > > Frediano
>>>> > >
>>>> > >
>>>
>>>
>
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