Can you zip up the MIDI file and attach it to a reply here? In addition, if you would please file a radar (and attach the MIDI file there as well) and include the ID of that radar in your reply here, it would really help move this issue along.
Thanks!! -DS > On Sep 11, 2016, at 7:25 AM, down to this <[email protected]> wrote: > > I've encountered a crash when invoking the AudioToolbox / MusicPlayer API > method "MusicSequenceFileLoad()" to load the contents of a MIDI file (from > the given URL) into a music sequence on an iOS10 device and would greatly > appreciate some assistance from the community. > > Observations I've been able to make thus far: > > * The first time the VC is displayed which uses this MIDI file all processing > runs without any issues. It's only the second time that the VC is loaded > where the app crashes. (Which makes me believe that this may be related to > memory management.) The issue can be recreated consistently. > > * This code has been working without issue in production on iOS7, 8, and 9 > for 2+ years and also runs without issue on the iOS 10 Simulator but crashes > silently on a iOS 10 device (iPad Pro). Device is running iOS 10.0.1. > > * No crash report is created on the device when this issue is encountered. No > exception information or call stack is available when debugging within Xcode. > > * Checking the OSStatus result code from calling this function simply returns > a value of -1 and does not indicate the reason for the failure. > > * Profiling for memory management issues (allocations, leaks, zombies), has > not shown any information related to the crash. > > * Turning on the Zombie Objects option did not reveal any Zombie Objects. > > * Analyzing the application did not reveal any areas where memory was not > being released. > > I'm at a bit of a loss given the lack of information when the crash occurs. > If anyone has any suggestions on other ways in which I could debug this issue > it would be greatly appreciated. I feel like it could be related to memory > management however from what I can see I am handling memory appropriately > (using ARC for the application and releasing C-API objects as needed) and > profiling has not revealed any issues that I can see. > > Thanks in advance for your assistance! > > Best, > > Derek _______________________________________________ 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]
