Hello, I've done differents tests, with the differents combinaisons between qemu X and spice-server, I can say that is since video adaptative streaming, the video streaming is bad compare to the old version (spice 0.12.3 / qemu 1.7 ). When i set SPICE_DISABLE_ADAPTIVE_STREAMING=Y , my tests shows that's a lot of frames are dropping, because of sound synchronisation, The only way to get good streaming performance is to desactivate audio from client side. ( --spice-disable-audio).
An other point, when you disable streaming detection from server side, video is good, but the sound is very bad. Regards, Nicolas 2014-09-08 16:57 GMT+02:00 Jeremy White <jwh...@codeweavers.com>: > On Sat, Sep 06, 2014 at 08:59:47AM -0500, Jeremy White wrote: >>> >>>> I think there actually is the same issue when running within QEMU: sound >>>>> is emitted from a QEMU thread: >>>>> >>>> >>>> Is there a bug or someone that is working on that issue? I'd be >>>> curious to >>>> see if my patch resolves the problem for them. >>>> >>> >>> I've only noticed this through code inspection/gdb breakpoints after you >>> pointed out the issue you found. However, I'm fairly sure there has >>> been reports on this mailing list of sound stopping after a while when >>> watching a video. This matches very closely what you described. >>> >> >> I was thinking of >> http://lists.freedesktop.org/archives/spice-devel/2014-July/017132.html >> Maybe there was another email. >> > > I couldn't quickly figure out the threading arrangement in qemu, but if > the main channel is being driven by a different thread than the audio > channel, then I think this patch would have introduced a bug: > > --- > commit bf9e210b21a66210b19f69fcaa4542b393b7dc22 > Author: Yonit Halperin <yhalp...@redhat.com> > Date: Fri Jan 25 09:34:19 2013 -0500 > > red_worker: video streams - adjust client playback latency > > -- > > Of course, that's 18 months ago, so it seems to me we would have found it > by now (despite it being a subtle, unpredictable bug that only occurs > during video playback). > > But, just to be sure, Nicolas, would you mind setting the > SPICE_DISABLE_ADAPTIVE_STREAMING environment variable prior to running > the client and seeing if that changes anything? > > Cheers, > > Jeremy >
_______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
