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| Original file line number | Diff line number | Diff line change |
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| // | ||
| // RKAudioRecorder.h | ||
| // Pods | ||
| // | ||
| // Created by goccy on 2017/06/16. | ||
| // | ||
| // | ||
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| #import <Foundation/Foundation.h> | ||
| #import <AudioToolbox/AudioToolbox.h> | ||
| #import <AVFoundation/AVFoundation.h> | ||
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| @interface RKAudioRecorder : NSObject | ||
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| @property(nonatomic, readonly) BOOL isRecording; | ||
| @property(nonatomic, readonly) ExtAudioFileRef audioFile; | ||
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| + (instancetype)sharedInstance; | ||
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| - (BOOL)startRecording; | ||
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| - (void)stopRecording; | ||
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| @end |
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| // | ||
| // RKAudioRecorder.m | ||
| // Pods | ||
| // | ||
| // Created by goccy on 2017/06/16. | ||
| // | ||
| // | ||
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| #import "RKAudioRecorder.h" | ||
| #import "RKAudioUnitProxy.h" | ||
| #import "RKRecordFile.h" | ||
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| @interface RKAudioRecorder() | ||
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| @property(nonatomic, readwrite) BOOL isRecording; | ||
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| @property(nonatomic, readwrite) ExtAudioFileRef audioFile; | ||
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| @end | ||
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| @implementation RKAudioRecorder | ||
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| static RKAudioRecorder *g_sharedInstance = nil; | ||
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| + (instancetype)sharedInstance | ||
| { | ||
| static dispatch_once_t onceToken; | ||
| dispatch_once(&onceToken, ^{ | ||
| g_sharedInstance = [RKAudioRecorder new]; | ||
| }); | ||
| return g_sharedInstance; | ||
| } | ||
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| - (NSURL *)defaultRecordFileURL | ||
| { | ||
| return [RKRecordFile fileURL:@"audio.aiff"]; | ||
| } | ||
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| - (BOOL)startRecording | ||
| { | ||
| AudioStreamBasicDescription asbd; | ||
| asbd.mSampleRate = 44100.0; | ||
| asbd.mFormatID = kAudioFormatLinearPCM; | ||
| asbd.mFormatFlags = kAudioFormatFlagIsFloat|kAudioFormatFlagIsPacked|kAudioFormatFlagIsNonInterleaved; | ||
| asbd.mBitsPerChannel = 32; | ||
| asbd.mChannelsPerFrame = 2; | ||
| asbd.mFramesPerPacket = 1; | ||
| asbd.mBytesPerFrame = 4; | ||
| asbd.mBytesPerPacket = 4; | ||
| asbd.mReserved = 0; | ||
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| AudioStreamBasicDescription createASBD; | ||
| memcpy(&createASBD, &asbd, sizeof(AudioStreamBasicDescription)); | ||
| createASBD.mFormatFlags = kLinearPCMFormatFlagIsBigEndian|kLinearPCMFormatFlagIsSignedInteger|kLinearPCMFormatFlagIsPacked; | ||
| createASBD.mBitsPerChannel = 16; | ||
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| if (ExtAudioFileCreateWithURL((__bridge CFURLRef)[self defaultRecordFileURL], | ||
| kAudioFileAIFFType, | ||
| &createASBD, | ||
| NULL, | ||
| kAudioFileFlags_EraseFile, | ||
| &_audioFile) != noErr) { | ||
| return NO; | ||
| } | ||
| // Set up the converter | ||
| if (ExtAudioFileSetProperty(self.audioFile, | ||
| kExtAudioFileProperty_ClientDataFormat, | ||
| sizeof(AudioStreamBasicDescription), | ||
| &asbd) != noErr) { | ||
| return NO; | ||
| } | ||
| self.isRecording = YES; | ||
| return YES; | ||
| } | ||
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| - (void)stopRecording | ||
| { | ||
| self.isRecording = NO; | ||
| ExtAudioFileDispose(self.audioFile); | ||
| NSLog(@"write file %@", [self defaultRecordFileURL].path); | ||
| } | ||
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| + (void)injectAudioUnitProxy | ||
| { | ||
| // (1) Fetch all `AudioComponent` by `AudioComponentFindNext` | ||
| // (2) `AudioComponentRegister` can register customized AudioUnit defined lifecycle. | ||
| // (3) Define newer version of predefined AudioUnit | ||
| // (4) After this section, `AudioComponentFindNext(NULL, desc)` returns `newer` version for AudioUnit ( our customized AudioUnit ) | ||
| AudioComponentDescription allDesc = {0}; | ||
| AudioComponent component = NULL; | ||
| while ((component = AudioComponentFindNext(component, &allDesc)) != NULL) { | ||
| AudioComponentDescription outDesc; | ||
| AudioComponentGetDescription(component, &outDesc); | ||
| CFStringRef name; | ||
| AudioComponentCopyName(component, &name); | ||
| UInt32 version; | ||
| AudioComponentGetVersion(component, &version); | ||
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| // ignore not supported componentSubType | ||
| if (outDesc.componentSubType == kAudioUnitSubType_AUiPodTime) continue; | ||
| if (outDesc.componentSubType == kAudioUnitSubType_AUiPodEQ) continue; | ||
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| AudioComponentInstance instance; | ||
| assert(AudioComponentInstanceNew(component, &instance) == noErr); | ||
| if (AudioUnitInitialize(instance) == noErr) { | ||
| AudioComponentRegister(&outDesc, name, version + 1, &RKAudioUnitProxyPlugin::factory); | ||
| } | ||
| AudioUnitUninitialize(instance); | ||
| AudioComponentInstanceDispose(instance); | ||
| } | ||
| } | ||
|
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| + (void)load | ||
| { | ||
| [[self class] injectAudioUnitProxy]; | ||
| } | ||
|
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| @end |
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| // | ||
| // RKAudioUnitProxy.h | ||
| // Pods | ||
| // | ||
| // Created by goccy on 2017/06/16. | ||
| // | ||
| // | ||
|
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| #import <Foundation/Foundation.h> | ||
| #import <AudioToolbox/AudioToolbox.h> | ||
| #import <AVFoundation/AVFoundation.h> | ||
|
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| class RKAudioUnitProxy { | ||
| public: | ||
| AudioUnit __nonnull audioUnit; | ||
| AudioUnit __nonnull originalAudioUnit; | ||
| AudioComponentDescription audioComponentDescription; | ||
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| RKAudioUnitProxy(AudioComponentInstance __nonnull instance); | ||
| ~RKAudioUnitProxy(void); | ||
| void setAudioComponentDescription(AudioComponentDescription from); | ||
| }; | ||
|
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| class RKAudioUnitProxyPlugin { | ||
| public: | ||
| RKAudioUnitProxyPlugin(void); | ||
| ~RKAudioUnitProxyPlugin(void); | ||
| static AudioComponentPlugInInterface *__nonnull factory(const AudioComponentDescription *__nonnull inDesc); | ||
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| private: | ||
| RKAudioUnitProxy *__nonnull audioUnitProxy; | ||
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| static OSStatus open(AudioComponentPlugInInterface *__nonnull plugin, AudioComponentInstance __nonnull instance); | ||
| static OSStatus close(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static AudioComponentMethod __nonnull lookup(SInt16 selector); | ||
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| static OSStatus unInitialize(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus initialize(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus getPropertyInfo(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitPropertyID inID, | ||
| AudioUnitScope inScope, | ||
| AudioUnitElement inElement, | ||
| UInt32 *__nullable outDataSize, | ||
| Boolean *__nullable outWritable); | ||
| static OSStatus getProperty(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitPropertyID inID, | ||
| AudioUnitScope inScope, | ||
| AudioUnitElement inElement, | ||
| void *__nonnull outData, | ||
| UInt32 *__nonnull ioDataSize); | ||
| static OSStatus setProperty(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitPropertyID inID, | ||
| AudioUnitScope inScope, | ||
| AudioUnitElement inElement, | ||
| const void * __nullable inData, | ||
| UInt32 inDataSize); | ||
| static OSStatus addPropertyListener(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitPropertyID inID, | ||
| AudioUnitPropertyListenerProc __nonnull inProc, | ||
| void * __nullable inProcUserData); | ||
| static OSStatus removePropertyListenerWithUserData(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitPropertyID inID, | ||
| AudioUnitPropertyListenerProc __nonnull inProc, | ||
| void * __nullable inProcUserData); | ||
| static OSStatus addRenderNotify(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AURenderCallback __nonnull inProc, | ||
| void *__nullable inProcUserData); | ||
| static OSStatus removeRenderNotify(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AURenderCallback __nonnull inProc, | ||
| void *__nullable inProcUserData); | ||
| static OSStatus getParameter(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitParameterID inID, | ||
| AudioUnitScope inScope, | ||
| AudioUnitElement inElement, | ||
| AudioUnitParameterValue *__nonnull outValue); | ||
| static OSStatus setParameter(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitParameterID inID, | ||
| AudioUnitScope inScope, | ||
| AudioUnitElement inElement, | ||
| AudioUnitParameterValue inValue, | ||
| UInt32 inBufferOffsetInFrames); | ||
| static OSStatus scheduleParameters(AudioComponentPlugInInterface *__nonnull plugin, | ||
| const AudioUnitParameterEvent *__nonnull inParameterEvent, | ||
| UInt32 inNumParamEvents); | ||
| static OSStatus reset(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitScope inScope, | ||
| AudioUnitElement inElement); | ||
| static OSStatus process(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitRenderActionFlags *__nullable ioActionFlags, | ||
| const AudioTimeStamp *__nonnull inTimeStamp, | ||
| UInt32 inNumberFrames, | ||
| AudioBufferList *__nonnull ioData); | ||
| static OSStatus processMultiple(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitRenderActionFlags *__nullable ioActionFlags, | ||
| const AudioTimeStamp *__nonnull inTimeStamp, | ||
| UInt32 inNumberFrames, | ||
| UInt32 inNumberInputBufferLists, | ||
| const AudioBufferList * __nonnull * __nonnull inInputBufferLists, | ||
| UInt32 inNumberOutputBufferLists, | ||
| AudioBufferList * __nonnull * __nonnull ioOutputBufferLists); | ||
| static OSStatus render(AudioComponentPlugInInterface *__nonnull plugin, | ||
| AudioUnitRenderActionFlags *__nonnull ioActionFlags, | ||
| const AudioTimeStamp *__nonnull inTimeStamp, | ||
| UInt32 inOutputBusNumber, | ||
| UInt32 inNumberFrames, | ||
| AudioBufferList *__nonnull ioData); | ||
| static OSStatus start(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus stop(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus callback0x101(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus callback0x102(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus callback0x105(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus callback0x106(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus callback0x008(AudioComponentPlugInInterface *__nonnull plugin); | ||
| static OSStatus callback0x00c(AudioComponentPlugInInterface *__nonnull plugin); | ||
| }; |
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