Hi, On Fri, Mar 10, 2017 at 08:24:24PM +0800, Jayce Wong wrote: > Hi guys, > > I have built and installed the newest version of spice-server, spice-gtk, > and spice-protocol (*Fri Mar 10 07:00:00 UTC 2017*). When I set > "SPICE_DEBUG_LEVEL=5", and add "--spice-debug" when start spicy, and then I > found that the SPICE is using glz-decoder even when I change > prefer-video-codecs to vp9. Maybe you don't have vp8/vp9 decoders? You can check with gst-inspect-1.0 | grep -i vp8 > So I wonder how to know which video codecs is using by SPICE? If you have the following patches [0] applied in spice-gtk, you should get the 'streaming=something' in spicy. It is useful for testing. [0] https://lists.freedesktop.org/archives/spice-devel/2017-March/036202.html Without this patches, I only pay attention to which decoder is being used (gstvideo => vp8, vp9, h264 or mjepg for mjpeg stream) > Besides, when I set Qemu command "streaming-video=filter", there will be > many white lines on the screen of guest OS. After searching on google, I > found that the default value of "streaming-video" is off. Having streaming-video=all/filter is necessary to make spice-server stream. > If "streaming-video" is turned to off, will SPICE still detect the screen > of guest OS and send stream to client? No. > Thanks for answering and sorry for my English. Cheers, toso
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