[Spice-devel] question: how to test the gstreamer:h264 with qemu ?

[Li, ZhijianX]

> -----Original Message-----
> From: cfergeau at redhat.com [mailto:cfergeau at redhat.com]
> Sent: Friday, July 29, 2016 3:17 PM
> To: Li, ZhijianX <zhijianx.li at intel.com>
> Cc: gouget at codeweavers.com; Spice-devel at lists.freedesktop.org
> Subject: Re: [Spice-devel] question: how to test the gstreamer:h264 with
> qemu ?
> 
> Hey,
> 
> On Fri, Jul 29, 2016 at 03:05:21AM +0000, Li, ZhijianX wrote:
> > Hello  guys,
> >
> > Recently, I found that spice have supported gstremer:h264 encoding, so I
> want to have a try.
> > But I'm not sure how to test this feature(I am a spice newbie)
> >
> > If I play a h264 encoding video in the guest, how can I *confirm* that
> > the gstremer:h264 works or not ?
> >
> > If I miss something, please let me know.
> > Below is my environment:
> > Host, Ubuntu 16.04 lts
> > 1.  guest
> > Win7 +" Red Hat QXL GPU(6.1.0.10020)"
> > 2. qemu
> > Branch: master + gstreamer related
> > patch(https://lists.freedesktop.org/archives/spice-devel/2015-May/0197
> > 71.html) Start qemu with " -spice video-codes=gstreamer:h264" options
> > 3. spice
> > Branch: master(comit: 29caba2)
> > Configuration with "--enable-gstreamer=1.0"
> > 4. spice-gtk
> > Branch: master(commit: 9b82e92)
> > Configuration with "--enable-gstvideo=yes"
> > 5. spice-protocol
> > Branch: master
> 
> Usually I just change default_video_codecs in spice-server/server/reds.c so
> that it starts with gstreamer:h264.
That's interesting  :)	
More question: Does the spice-client side(remote-viewer) or the guest driver need some special options to notify the client 
to use the gstreamer:h264. 

> > If I play a h264 encoding video in the guest, how can I *confirm* that
> > the gstremer:h264 works or not ?
Can this operation will cover the gstreamer:h264 related code path.

Thanks
Zhijian

> We probably should add some logging to dcc_create_video_encoder() to
> make it easier to know which codec is used :)
> 
> Christophe