[winswitch] I need to video record session

Antoine Martin antoine at nagafix.co.uk
Sun Aug 20 05:16:15 BST 2017

On 20/08/17 03:04, Massimiliano Dal Cero via shifter-users wrote:
> Hi :)
> I'm new here, so I can repeat something that you've read in the past
> ​ about XPRA​
> (but I do not find anything about this).
> I need to execute an application and access it via a browser session (so I
> use the --html5 option).
> Ok, this work without a problem, but I have another need: record session on
> a video file.
> I tried with ffmpeg but I can only see the mouse, but the window of my app
> is an black box :(
Xpra is a compositing window manager that happens to composite the
windows on the client (ie: HTML5 client), so the windows are never
actually painted on the server's vfb.

> So i tried with "shadow + xvfb" options and the video now is ok, but with
> this option I lose some funtionality in html5 (ie: stretch area to full
> browser tab).
> So, the question is:
> Exist a solution for recording video without using shadow + xvfb and use
> native mode?
Yes, use "--sync-xvfb=DELAY", see:


> thanks and best regards :)
> ​Max​

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