[linux-audio-dev] help with multiple control ports

[Artemio]

Hello all!

I have a problem with creating a plugin with more than one control 
port. In the attachment you'll find "booster-simple.c" which has one 
"Gain" port and my attempt to add a second port in "booster.c". For 
some reason the latter cannot be used - the sources seem to be 
correct, it compiles fine, but then if I test with "applyplugin" it 
segfaults and other hosts complain about a malloc() error and hang.

Debugging shows that ports are not properly connected:

[connectPortToBooster] setting BOOSTER_INPUT1
[connectPortToBooster] setting BOOSTER_OUTPUT1
[runMonoBooster]
applyplugin: booster.c:112: runMonoBooster: Assertion 
`psBooster->m_pfGainValue != 0' failed.

...but I cannot investigate further as my C is very basic.

I would really appreciate any help. I based my plugin on the amp.c 
from the SDK, and I see that in example plugins like simple delay 
(where there is more than one control port) memory allocation is done 
differently, but I just don't know how to properly apply these 
techniques to my plugin...

Thanks very much!


Artemiy.


P.S. I've sent a message with a 50Kb attachment and it's in moderation 
queue, but these sources are newer.
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