MusicSequenceFileCreate fails to save tracks

Subject: MusicSequenceFileCreate fails to save tracks
From: Valentin Radu <email@hidden>
Date: Fri, 12 Dec 2014 03:07:31 +0200

Hi everybody,

I’m trying to save a sequence to disk but it seems MusicSequenceFileCreate doesn’t work for some reason. In the code below, there is no error thrown, however, when doing a CAShow on the testSequence, I can see it's not the same as the old sequence, all the tracks are missing. The only, let’s say odd, thing about the tracks is that they have a user event with some data at timestamp 0. Did anyone encountered issue this before? Any pointers on why this is happening? Is is a bug?

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,

                                                             NSUserDomainMask, YES);

        NSString *documentsDirectory = [paths objectAtIndex:0];

        NSString *midiPath = [documentsDirectory

                              stringByAppendingPathComponent:@"test.mid"];

        NSURL* url = "" style="font-variant-ligatures: no-common-ligatures; color: #c35900" class="">NSURL alloc] initFileURLWithPath:midiPath];

        VRC(MusicSequenceFileCreate(sequence, (__bridge CFURLRef)url, kMusicSequenceFile_MIDIType, kMusicSequenceFileFlags_EraseFile, 0));

        MusicSequence testSequence;

        VRC(NewMusicSequence(&testSequence));

        VRC(MusicSequenceFileLoad(testSequence, (__bridge CFURLRef)url, kMusicSequenceFile_MIDIType, 0));

Valentin Radu

codewisesystems.com
cocoaexposed.com

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