Steven Yi wrote:
> I've been trying to debug what is going on here with blue and the
> Csound API.  It seem that after running a project a few times, after
> the project finishes rendering Csound crashes and it takes down blue
> with it.  I'm not sure if I'm doing something wrong with using the API
> though.  Currently, I'm creating a new Csound object for each render,
> and calling csound.Reset() after it is finished.  The ksmps loop part
> of the code, then the Reset call is shown below.  I tried also by
> using the CsoundCallbackWrapper and setting a YieldCallBack, but that
> didn't quite work.  When the crash occurs, I do get an error log from
> Java and it seems that the error might be from PerformKsmps.  I did
> try putting in a print out to system.err after the ksmps loop but
> before the Reset call and it did not show when Csound crashed.
>   
Steven, this problem sounds suspiciously like the problem I've had (and 
still have) with AVSynthesis. That program will run stably as long as I 
don't render anything via the Csound side, but as soon as I render audio 
the system is unstable. Sometimes it will continue to work without 
troubles, but most of the time it's a safe bet that at some point AVS 
will crash, and the only message I ever receive is a segfault from 
Csound, usually with a Pt_stop message before the segfault. I work with 
AVS much like you might in blue, i.e. I'm calling and recalling Csound 
performance many times during a session. At some point it appears that 
Csound simply gives up the ghost, but I don't really know why yet.

Btw, I can look into the AVS sources now, I'll see if the Csound code is 
similar to your examples. And as Michael G indicates, this problem 
appears to cause no troubles on Windows. I should also note that I've 
seen the same behaviour with Rubato when I've run its Csound rubettes, 
i.e. the system becomes unstable and prone to wild segfaults.

Best,

dp


-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Csound-devel mailing list
Csound-devel@lists.sourceforge.net