Hello list ,
The OpenSoundControl protocol
(http://www.cnmat.berkeley.edu/OpenSoundControl/) would make a great
extension to libvisual.
Using the OSC would bring a few benefits to libvisual:
1. Flexible (external/remote) control of libvisual plugins
2. Application programmers dont have to hardcode parameter/event handling
but can send messages to libvisual actor/plugin instead
At audio analyzer level (not needing the visualization plugins):
3. Users can setup OSC messages to be sent to other applications
to trigger bangs/events on sound events ( kick, beat, frequency ... )
Looking at the morph sdl example, I can imagine an osc structure for
flexible control of libvisual plugins:
/visual/morph/setup/
depth
dimension
pitch
duration <in frames>
/visual/morph/set/
freeze <num>
alpha <float>
speed <float>
reverse
...
(3. Users sets up OSC messages to be sent to other applications)
/visual/analyzer/setup
destination_host <host>
destination_port <port>
/visual/analyzer/on
kick <message>
beat <message>
roll <message>
vol <message>
I guess that the latter (nr. 3) would be most usefull for libvisual ; it
would greatly improve interoperability with other applications without
needing to implement libvisual in those applications (the user can simply
connect them).
Best,
Niels Elburg
(main developer of Veejay, http://veejay.sourceforge.net)
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