I have a singleton class that creates and manages a remoteIO. What happens in the class is I set up a remoteIO and ask for render callbacks. I do some manipulating of (float *) buffers, specifically with some loop being/end and LFO concepts using basic mathematical operations on the buffer.
Recently, I've been experiencing VERY problematic behavior where the app freezes up, seemingly continues to run, awkwardly prints out some print() statements in the callback, yet not others, and then my whole system (xcode + iphone) goes to hell. The app is unresponsive, xcode won't build it again (gets "process timed out"), and the iphone itself basically crashes. Then I need to restart Xcode, often restart the Iphone and the whole process sets me back some 5-10 minutes every time. Currently, I'm still trying to debug but I thought I'd post a description of the problematic behavior as well as a code sample. I've added comments to clarify what is important. One thing to note is that at the begin I access 4 properties as instance variables on my class. Those are changed as the app is running via my UI. At first the loop begin/end points are 0 - 0. Therefore, the callback returns noErr, (at this point everything is fine). As soon as I use the UI to set a valid loop duration say 1 - 100, this whole crashing process commences. Whats weird is the print statement further down the callback continues to print (awkwardly, very slowly and fragmented..) while the print at the front of the callback does not. Also, break points don't get called. However, no OSStatus is returned nor exception is thrown. Here is a sample (the render callback code). I would really appreciate some help and if more information is needed please let me know. https://gist.github.com/AlexanderBollbach/1c931df3c4ebf571e473
_______________________________________________ Do not post admin requests to the list. They will be ignored. Coreaudio-api mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/coreaudio-api/archive%40mail-archive.com This email sent to [email protected]
