> -----Original Message----- > From: cfergeau@xxxxxxxxxx [mailto:cfergeau@xxxxxxxxxx] > Sent: Friday, July 29, 2016 4:19 PM > To: Li, ZhijianX <zhijianx.li@xxxxxxxxx> > Cc: gouget@xxxxxxxxxxxxxxx; Spice-devel@xxxxxxxxxxxxxxxxxxxxx > Subject: Re: question: how to test the gstreamer:h264 with > qemu ? > > On Fri, Jul 29, 2016 at 08:10:46AM +0000, Li, ZhijianX wrote: > > > > > -----Original Message----- > > > From: cfergeau@xxxxxxxxxx [mailto:cfergeau@xxxxxxxxxx] > > > Sent: Friday, July 29, 2016 3:17 PM > > > To: Li, ZhijianX <zhijianx.li@xxxxxxxxx> > > > Cc: gouget@xxxxxxxxxxxxxxx; Spice-devel@xxxxxxxxxxxxxxxxxxxxx > > > Subject: Re: 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. > > Once the streaming code triggers, use of h264 instead of mjpeg should be > automatic if both the server and the client have the required gstreamer > plugins. In addition to hacking the default_video_codecs, it seems that we need to set the qemu spice option 'streaming-video=filter' Which is 'off' by default, to trigger the gstreamer:h264, right ? And how the libspice can know the guest is playing a video instead of staying at a static screen, is there a PV driver to tell the backend ? Thanks Zhijian > > Christophe _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel