Thanks for the response Victor, I guess from my limited (user) perspective I don't have much to contribute, but it's good to know I wasn't doing anything wrong and support could come in a later release.
Cheers! On Fri, 30 Jul 2021 at 22:02, Victor Toso <victort...@redhat.com> wrote: > Hi, > > On Mon, Jun 21, 2021 at 05:04:59PM +0700, Noah O'Donoghue wrote: > > Hi all, > > > > I'm trying to use gstreamer with spice to encode/decode video, > > as I think it will be much faster and smoother than MJPEG, > > > > I've installed these packages on both client and server (Ubuntu 20.04) > > gstreamer1.0-plugins-base > > gstreamer1.0-plugins-good, > > > > And with remote-viewer --spice-debug I can see that my > > client/server are advertising a range of protocols (including > > H264).. > > > > But for some reason it only uses MJPEG..? > > > > Any ideas? > > You need configure the server to do the encoding, that is not > enable by default. You can see in the code [0] that spice:mjpeg > is preferred and gstreamer is only enabled if spice compiled with > gstreamer. > > The second thing to keep in mind is how to set the preference of > video encoding with mjpeg. The application using spice should > use spice_server_set_video_codecs() introduced at [1] API but > QEMU never got to implement that so you are a bit limited to how > to configure that on the host side. > > As you have mentioned, there is some support in the protocol to > configure the server based on client's requests. It was > implemented first as a testing tool, to exchange video-codec on > the fly and later it could be used to rank video-codec based on > client's capabilities for hw decoding. You can test that in spicy > testing tool, there is a radio button list that you can reach > from the Menu. Sadly, this feature did not reach the stage we > wanted in order to implement for other clients like virt-viewer. > > [0] > https://gitlab.freedesktop.org/spice/spice/-/blob/master/server/reds.cpp#L3425 > [1] https://gitlab.freedesktop.org/spice/spice/-/commit/497fcbb0a > > Sorry delay. > > Cheers, > Victor >
