[Mep-dev] Baseband Steps - Atom Smash

[Michelle]

On Fermi (which has the Moblin v2.0 beta installed) I was able to get a high-definition (borrowed) webcam piped to an xwindows output using Gstreamer.


the command line was:

gst-launch v4l2src ! ffmpegcolorspace ! ximagesink

The exclamation marks are pipe symbols. The v4l2src, ffmpegcolorspace, and ximagesink are blocks in a block diagram of where the video datastream goes.

v4l2src is the webcam source.
ffmpegcolorspace is a converter that converts one color space to another. 
ximagesink is the window on the desktop where the webcam shows up. 

So, what does this mean? Well, it means that I managed to figure out how to manipulate a video data stream on moblin and wanted to share the first steps of trying to figure out how to sling video around on an Atom Smash MEP.   :+)

If you are following along, you may have noticed a bit of a run on the Moblin v2.0 Beta. The mirror sites should be up Real Soon Now, according to the moblin irc channel. I'm interested to know what the list things of the visual presentation.

After you get moblin installed, grab a webcam, check it against the list at http://linux-uvc.berlios.de, see if the above command works, then let us know. 

More soon,
-Michelle W5NYV


Potestatem obscuri lateris nescis.