On 17/11/12 13:33, Atte wrote:
Hi I'm trying to capture a screencast of a jack2 client (renoise), but it seems recordmydesktop and jack2 doesn't work well together. Anything I should do different? Any alternative to recordmydesktop that I should try instead?
For me screen-capturing with jack seems terribly broken at the moment... jack capture with (gtk)-recordmydesktop is broken since at least 1 year, and seems related to the funky width and height values reported when you use it with jack.
I had an ffmpeg (and newer avconv) script which worked very well until a few months ago which is now also broken on my system (debian wheezy):
ffmpeg -f jack -ac 2 -i ffmpeg -f x11grab -r 30 -s 1280x800 -i :0.0 -acodec pcm_s16le -vcodec libx264 -preset ultrafast -threads 0 output.avi
Adapded from some blog online I can't recall. Actually it seems the X11 grabbing part is broken there, as recording a wav file through jack works.
I had tried gstreamer, but couldn't really get it to work (audio was stuttery).
Lorenzo.
I'm running ubuntu 12.10... atte@blokhus:~$ jackd --version jackdmp 1.9.9 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2012 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details jackdmp version 1.9.9 tmpdir /dev/shm protocol 8 atte@blokhus:~$ recordmydesktop --version recordMyDesktop v0.3.8.1 atte@blokhus:~$ recordmydesktop --use-jack renoise:output_01_left renoise:output_01_right Initial recording window is set to: X:-27984 Y:0 Width:29008 Height:768 Adjusted recording window is set to: X:-27984 Y:0 Width:29008 Height:768 Your window manager appears to be Xfwm4 Detected compositing window manager. Reverting to full screen capture at every frame. To disable this check run with --no-wm-check (though that is not advised, since it will probably produce faulty results). Initializing... jack_client_new: deprecated Capturing! Failed to obtain Shared Memory segment!
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