2006-03-01 11:04:07 GMT
People say a picture worths thousand words. If that's true, then a screencast must worth probably millions of words. Seeing an application working in live, you can get a feel of it without any deployment on your part. Screencasts provide an immediate, solid proof that your application works and it's a uniquely powerful marketing, demonstration and teaching tool also.
I'm so satisfied with the first UC screencast I made yesterday, that I'm gonna detail how to setup an environment that is ideal for making flash screencasts in a streamlined fashion using
vnc2swf and GNOME Vino.
You may ask why flash is better than any other alternatives and I'll answer this question as short and conscise as I can:
So here are the steps to set up a perfect home "screencasting studio":
sh -c "zenity –question && gdmflexiserver"". Pressing this button should fork another X server with GDM. Thanks Dömi for letting me know about
xvidtune. Set the optimal values for your monitor for the given resolution and press the Show button that dumps the modeline of the actual settings to stdout which you should cut and paste to
sudo chvt 8" and "
sudo chvt 7" respectively. As a side note, if you hate
sudoas much as I do, you can also use power.
vnc2swf. I had to use
pyvnc2swf-0.8.2still couldn't capture mouse cursor despite what the documentation says.
#!/bin/sh RECORDINGDIR=~/screencasts OUTFILENAME=`date +%Y-%m-%d--%H-%M-%S` VNCHOST=localhost:0 cd $RECORDINGDIR killall vnc2swf \ && zenity --info --text "Recording successfully completed" \ || vnc2swf -nowindow $OUTFILENAME.swf $VNCHOST > $OUTFILENAME.html
10. Create a
screencasts directory in the home directory of cameraman. After a few screencasts, this directory should look like this:
laci@whisper:/home/cameraman/screencasts$ ls -l total 3619 -rw-r--r-- 1 cameraman cameraman 583 Feb 28 17:43 2006-02-28--17-43-38.html -rw-r--r-- 1 cameraman cameraman 97446 Feb 28 17:43 2006-02-28--17-43-38.swf -rw-r--r-- 1 cameraman cameraman 583 Feb 28 17:44 2006-02-28--17-43-54.html -rw-r--r-- 1 cameraman cameraman 104421 Feb 28 17:44 2006-02-28--17-43-54.swf -rw-r--r-- 1 cameraman cameraman 583 Feb 28 17:47 2006-02-28--17-47-26.html -rw-r--r-- 1 cameraman cameraman 124987 Feb 28 17:47 2006-02-28--17-47-26.swf -rw-r--r-- 1 cameraman cameraman 583 Feb 28 18:19 2006-02-28--18-17-40.html -rw-r--r-- 1 cameraman cameraman 3354217 Feb 28 18:19 2006-02-28--18-17-40.swf