Screenshots and work samples
Since the Gnome screenshot utility can not grab the content of
overlay buffers only one screenshot for first. You have to
imagine a video image
instead of the blue box on the left. The screenshot gives an
impression of the main GUI elements in version 0.1
Fig. 1: The main GUI elements. Main window (top),
binarisation dialog (botton left),
region/trigger preferences for the
first region, selected in main window
Fig. 2: The main window with configuration
dialogs for each region grouped around it, as in version
Those who are curious about what Wechselspieler is good for, a
Quicktime movie (5.2MB) gives an impression of
what can be done with the software. Although it is artistically
not that sophisticated it shows
the key point of wechselspieler: Generating sound from video.
In this case, the waves of the ocean play a simple tune.
Download and installation instructions
Currently Wechselspieler is available only as tar.gz Source archive
and Debian package at
. The Debian package can also be installed from T. Kulessa's
APT repository. Check the Resources section on his hompage to read how you can access it.
If you want to contribute to the development, or just the
absolutly latest, but untested source, check out the instructions,
how to access the CVS.
To install wechselspieler from source code follow these steps:
- Download the file
to a directory of your choice.
<Version> is the release number
- Open the Terminal program (On the Gnome desktop
you can find under the
"Applications/System Tools" menu).
- Change to the directory where you downloaded
the archiv by typing cd <directoryname>
on the prompt and hitting the Return key.
<directoryname> is the name of the
- Extract the archive by typing
tar xzf wechselspieler-<Version>.tar.gz.
- Change to the freshly created directory.
- Type ./configure && make to
configure and compile the package for
your system. If the configure process
exists with an error saying that a
package is missing, make sure that all
- If the build process didn't fail, wechselspieler
is ready to install. Do this by executing
su -c "make install". You will
be asked for the root password. Enter it.
- The software should now installed under the
- Type gst-register-0.8
- Executing /usr/local/bin/wechselspieler
should start the program.
To be able to compile and run wechselspieler on your computer the
following software has to be installed on your machine:
- gtkmm 2.4.x, the C++ bindings
for the GTK+ toolkit.
- libxml++ 1.0.x, the C++ bindings for the
libxml XML library.
- gstreamer 0.8.x, a media processing
- libglademm 2.4, C++ for the libglade
- liblo, support for the OpenSoundControl (OSC) protocol.
- ALSA kernel modules, they are part
of the Linux kernel 2.6.x and above.
Thomas Kule▀a, is computer scientist and works camera based user
interfaces, especially in the the context of media art for years. Check
for more details.
For all content on this
site and the
2007 by Thomas Kule▀a