input bus 数量通过 set kAudioUnitProperty_ElementCount 属性设置: UInt32 mixer_input_buses_num = 2; AudioUnitSetProperty...AudioUnitSetProperty(export_mixer_unit_, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input...i, &desc, sizeof(desc) ); } result = AudioUnitGetProperty...UInt32 dims[2]; UInt32 theSize = sizeof(UInt32) * 2; OSStatus result = AudioUnitGetProperty(matrixMixing...1) * (dims[1] + 1)) * sizeof(Float32); Float32 *theVols = static_cast(malloc(theSize)); AudioUnitGetProperty
mFramesPerPacket = 1 mBytesPerFrame = 4 mChannelsPerFrame = 2 mBitsPerChannel = 32 mReserved = 0 } AudioUnitGetProperty...和 AudioUnitSetProperty 可以获取和设置AudioUnit属性; AudioUnitGetPropertyInfo 用于在设置或者读取属性之前,获取属性可以修改的大小和是否可写
使用 AudioUnitSetProperty函数为录制和回放开启IO。...使用 AudioStreamBasicDescription 结构体描述音频格式,并使用AudioUnitSetProperty进行设置。...使用 AudioUnitSetProperty 设置音频录制与放播的回调函数。 分配缓冲区。 初始化 Audio Unit。 启动 Audio Unit。 初始化 初始化看起来像下面这样。...callbackStruct; callbackStruct.inputProc = recordingCallback; callbackStruct.inputProcRefCon = self; status = AudioUnitSetProperty...callbackStruct.inputProc = playbackCallback; callbackStruct.inputProcRefCon = self; status = AudioUnitSetProperty
DebugLog(@"%@",@(success)); } 分别尝试了 AUGraphAddNode AudioOutputUnitStart AudioComponentInstanceNew AudioUnitSetProperty...UInt32 maxFPS = (UInt32)maxFrames; //设置input和output status = AudioUnitSetProperty...processingFormat, sizeof(AudioStreamBasicDescription)); UInt32 flag = 1; status = AudioUnitSetProperty...outputUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Output, 0, &flag, sizeof(flag)); AudioUnitSetProperty...processingFormat, sizeof(AudioStreamBasicDescription)); //设置maxFrame status = AudioUnitSetProperty
AudioUnitGetProperty(...)[19]:获取 AudioUnit 的属性。 AudioUnitSetProperty(...)[20]:设置 AudioUnit 的属性。...language=objc [19]AudioUnitGetProperty(...): https://developer.apple.com/documentation/audiotoolbox/1439840...-audiounitgetproperty?...language=objc [20]AudioUnitSetProperty(...): https://developer.apple.com/documentation/audiotoolbox/1440371...-audiounitsetproperty?
遇到的问题 1、AUGraphNodeInfo无法初始化AudioUnit 实际运行时,报错是AudioUnitSetProperty方法,返回了-50的错误码。...检查错误码,是AudioUnitSetProperty的audio unit参数为空。...往上回溯,定位到AUGraphNodeInfo没正确初始化传入的audio unit参数,导致audio unit为空,并且当时没有报错,直到AudioUnitSetProperty时才报错。...2、AUGraphSetNodeInputCallback给RemoteI/O Unit设置回调无效 如下,给RemoteI/O Unit设置回调可以用AudioUnitSetProperty方法修改kAudioOutputUnitProperty_SetInputCallback...outputNode, INPUT_BUS, &recordCallback), "record callback set fail"); // 这个不行,因为scope不一致 CheckError(AudioUnitSetProperty
UInt32 enable_input = 1; if (CheckHasError(AudioUnitSetProperty(io_unit_, kAudioOutputUnitProperty_EnableIO...scope of the output element. // 因为只录制, 所以关闭 output UInt32 enable_output = 0; if (CheckHasError(AudioUnitSetProperty...UInt32 flag = 0; if (CheckHasError(AudioUnitSetProperty( io_unit...if (CheckHasError(AudioUnitSetProperty(io_unit_, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output...代码示例: ... // 这里我们需要 enable output UInt32 enable_output = 1; if (CheckHasError(AudioUnitSetProperty
使用属性配置Audio Units UInt32 busCount = 2; OSStatus result = AudioUnitSetProperty ( mixerUnit,...AudioUnitGetProperty,AudioUnitSetProperty: 获取,设置一个属性值 AudioUnitAddPropertyListener,AudioUnitRemovePropertyListenerWithUserData...调用AudioUnitGetProperty从mixer的输入端检索 kAudioUnitProperty_StreamFormat流格式....调用两次AudioUnitSetProperty,一次设置iPod EQ unit’s input流格式,一次设置输出流格式....callbackStruct.inputProc = &renderCallback; callbackStruct.inputProcRefCon = soundStructArray; AudioUnitSetProperty
image.png AudioUnitSetProperty( AudioUnit inUnit,...UInt32 one = 1; AudioUnitSetProperty(outputUnit, kAudioOutputUnitProperty_EnableIO, kAudioUnitScope_Input..., sizeof(one)); 三、数据处理 3.1、AURenderCallbackStruct 在Audio Unit存储输入的数据和提供播放输出数据都是通过RenderCallback函数,通过AudioUnitSetProperty...callBackStruct.inputProc = BXAURenderCallback; callBackStruct.inputProcRefCon = (__bridge void * _Nullable)(self); AudioUnitSetProperty
UInt32 flag = 1; // 为播放打开 IO status = AudioUnitSetProperty(audioUnit,...&flag, sizeof(flag)); checkStatus(status); // 设置播放格式 status = AudioUnitSetProperty...callbackStruct.inputProc = playbackCallback; callbackStruct.inputProcRefCon = self; status = AudioUnitSetProperty
UInt32 flagOne = 1; AudioUnitSetProperty(_audioCaptureInstance, kAudioOutputUnitProperty_EnableIO...每个包的字节数 asbd.mSampleRate = self.config.sampleRate; // 采样率 self.audioFormat = asbd; status = AudioUnitSetProperty...cb.inputProcRefCon = (__bridge void *) self; cb.inputProc = audioBufferCallBack; status = AudioUnitSetProperty
UInt32 flag = 1; status = AudioUnitSetProperty(_audioRenderInstance, kAudioOutputUnitProperty_EnableIO...inputFormat.mSampleRate = self.audioSampleRate; // 采样率 status = AudioUnitSetProperty(_audioRenderInstance...}; status = AudioUnitSetProperty(_audioRenderInstance, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global
使用 provideUserInterface 属性来确定 AUAudioUnit 是否具有用户界面。
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