52 lines
1.5 KiB
Objective-C
52 lines
1.5 KiB
Objective-C
//
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// MIKMIDIMetronome.m
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// MIKMIDI
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//
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// Created by Chris Flesner on 11/24/14.
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// Copyright (c) 2014 Mixed In Key. All rights reserved.
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//
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#import "MIKMIDIMetronome.h"
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#import "MIKMIDISynthesizer_SubclassMethods.h"
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#import "MIKMIDINoteEvent.h"
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#if !__has_feature(objc_arc)
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#error MIKMIDIMetronome.m must be compiled with ARC. Either turn on ARC for the project or set the -fobjc-arc flag for MIKMIDIMetronome.m in the Build Phases for this target
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#endif
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@implementation MIKMIDIMetronome
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#if TARGET_OS_IPHONE && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_8_0
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+ (AudioComponentDescription)appleSynthComponentDescription
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{
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AudioComponentDescription instrumentcd = (AudioComponentDescription){0};
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instrumentcd.componentManufacturer = kAudioUnitManufacturer_Apple;
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instrumentcd.componentType = kAudioUnitType_MusicDevice;
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instrumentcd.componentSubType = kAudioUnitSubType_Sampler;
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return instrumentcd;
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}
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#endif
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- (BOOL)setupMetronome
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{
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self.tickMessage = (MIDINoteMessage){ .channel = 0, .note = 57, .velocity = 127, .duration = 0.5, .releaseVelocity = 0 };
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self.tockMessage = (MIDINoteMessage){ .channel = 0, .note = 56, .velocity = 127, .duration = 0.5, .releaseVelocity = 0 };
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NSError *error = nil;
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if (![self sendBankSelectAndProgramChangeForInstrumentID:7864376 error:&error]) {
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NSLog(@"Unable to set up MIKMIDIMetronome (%@): %@", self, error);
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return NO;
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}
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return YES;
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}
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- (instancetype)initWithError:(NSError **)error
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{
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if (self = [super initWithError:error]) {
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if (![self setupMetronome]) return nil;
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}
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return self;
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}
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@end
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