# /home/bill/bin/gtk-record notes.txt   - record desktop realtime  (video screencapture)


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29Feb2012 Convert ogv to avi

http://ubuntuforums.org/showthread.php?t=806125
mencoder "$1" -ovc xvid -oac mp3lame -xvidencopts pass=1 -o "$2"

see script /home/bill/bin/convert_ogv_2_avi.sh

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28Feb2012 Still can't get this to work!

still bill wasn't in audio group?
sudo  usermod -a -G audio bill

in jackd setup -> Settings I put:
Timeout 500 msec (instead of 500) as recommended by https://help.ubuntu.com/community/HowToJACKConfiguration
Input& output devices ->  dev/audio  (instead of DEFAULT)
Force 16 bit (instead of not set)
in jackd Setup -> Misc  I put:

Oops - jackd message window says:
Your system has an audio group, but you are not a member of it.
Please add yourself to the audio group by executing (as root):
  usermod -a -G audio (null)
I did System -> admin -> users&groups to re-add myself!
Hmm - when I "started" jackd -> 


Check that no users (eg bill) are members of audio group:
fgrep -ie 'audio' /etc/group
should see:  audio:x:29:pulse

/usr/bin/jackd
to launch:
jackd -d alsa  -> "freezes" videos!!
jackd -r -d alsa -> doesn't work either
Try       -u, --unlock  Unlock libraries GTK+, QT, FLTK, Wine.
jackd -u -d alsa   -> doesn't work either
???? I probably don't want als - it's for midi???
jackd -u -d coreaudio   % -u, --unlock  Unlock libraries GTK+, QT, FLTK, Wine;  coreaudio - not alsa?
?? coreaudio not recognized
jackd -u -d dummy   % OK runs - but gtkrecord error about window!
kill jackd,  restart as root sudo -i in new terminal
jackd -u -d dummy   % OK runs - but gtkrecord error about window!
now gtk-record can't see audio   Advanced -> Sound tab -> Available ports :jack_lsp returned no ports"
                                 Record ->  parsing the arguments  (i.e. NOT the Window problem!)


from:  http://ubuntuforums.org/showthread.php?t=1337017
Okay here's the deal. If i run 'sudo qjackctl' everything seems to start okay.  % like me launching from root
           but - that was ecause he wasn't a member of audio (like me...)

I used Synaptic for qjackctl  (oops - it was already installed0
qjackctl from terminal  -> that's wht I was already using!!!

Setup - Jack audio connection kit:
I set Input & Output devices to hw:0
Just run Totem movie player -> that alone doesn't work (no sense testing gtk-recordMyDesktop!)








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Server configuration saved to "/home/bill/.jackdrc".


jackd - audio capture is needed
/etc/security/limits.d/audio.conf  (OLD Ubuntu versions! -> /etc/security/limits.conf) I added (based on jackd messages):
@audio          -       rtprio          100
@audio          -       rtprio          -10  -> later this was removed (in audio.conf)
@audio          -       memlock         1081600

also - one time (this seemed to fix gtk-record problem of not being able to open a window)
chmod a+rx   /usr/bin/jackd