Then you need to send the video stream to the device /dev/video0 using a program like ffmpeg.In order to capture the desktop and forward it to /dev/video0 with ffmpeg, you can use the following command line: Change the value of -r from 15 to something else if you want a different frame rate. If you want to specify an offset from the upper-left corner of the screen, pass it in the -i parameter in the form "-i :0.0 x,y", where x and y are the horizontal and vertical offset respectively. I've had success with Web Cam Studio under Arch combined with the Livestream web-based "studio." It's been a little while since I've used it, though. ffmpeg compiled with x11grab can record the desktop.
Scott also discusses some of the common command-line tools, such as grep, awk, and sed, and command-line apps such as the nano and Vim text editors.
Note: The software included with Fedora changes frequently, and sometimes the Guest Additions installer will expect a different version of a particular package.
The log files can give you more specific information - they can be explored with the ‘cat’ command, or a text editor like gedit.
I've had limited success pushing that to Ustream, but again it's been a while and I think what I was doing won't work anymore.
If you just want to stream a file rather than your desktop (I'm thinking when you say, "A window," you mean, "VLC"), I can point you in the right direction to get that working with Livestream (maybe Ustream).