On Fri, 2010-10-01 at 18:07 +0900, Yann wrote: > Dear all, > > I observe that I get better audio/video results with Gtalk plugin than > with Empathy 2.30.2 (on Lucid)
That's really non-specific. x264 was badly tune for video conferencing using in Lucid, Maverick might be better > Someone told me that it may be because Gtalk uses H264 SVC, and not Empathy. Probably someone not really understanding what's going on :).. H264 SVC doesn't actually result in better quality, it just makes it easier to scale to the available bandwidth if you send the video to multiple participants. For p2p it doesn't really help much as you can just change what your encoder outputs there. The reason the Gtalk webclient might have better quality is that they do some quality enhancements on their audio streams (which is being worked on for pulseaudio) and that they've tuned their h264 encoder better for use with voip.. The last part is getting better with newer gstreamer versions but it's partially a distribution question as it depends on which exact h264 encoder you're using. > As it is a norm, it could be possible to implement it in Telepathy, > isn't it ? Is it planned or started or maybe already done ? The fact that GTalk can use it doesn't make it a norm and the Telepathy projects doesn't create video codecs. That's a question for the X264 project for example, but also it won't help you :) -- Sjoerd Simons <[email protected]> Collabora Ltd. _______________________________________________ telepathy mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/telepathy
