[Qtractor-devel] DSSI Plugin on audio track mono, and some other (more DSSI specific) questions

[Mathias K. <mat...@we...>]

Hey Rui,

at the moment, i am writing a small DSSI plugin ... and as soon as i 
started, i ran into some problems, where i need your help:

1. I can start my plugin with "jack-dssi-host" without problems. It has 
1 MIDI and 1 Audio input. When i load the dssi plugin into qtractor on a 
MIDI track, everything seems to work fine. But when i try to load it on 
an audio track, qtractor exits with a segmentation fault.

Do you have any idea, that could help me? Du I need to write the plugin 
in a stereo-version?

2. The plugin also needs a GUI i've written in QT. This works fine, and 
qtractor does start the GUI. But the DSSI ports which are set by 
qtractor are not send to the GUI? Is there a special mechanism to load 
all the data for the GUI on startup? I think, the host (qtractor) calls 
something like an update-method?


3. My plugin has some control ports, and they all seem to work fine. But 
i do need a control port output at the plugin, so that a response can be 
sent to the plugin gui (which is also started fine by qtractor). So i 
created a control port as output of the plugin. Now, when i change the 
data of this port from within the plugin, the GUI and qtractor do not 
recognize that the value has changed. Do you know if there's such a 
mechanism?


If my questions are to annoying for you, please do just forget them. But 
maybe you got the hint for me, that i am missing all the time ...

Regards,
gizzmo