C++ AudioUnitGetProperty函數代碼示例

本文整理匯總了C++中AudioUnitGetProperty函數的典型用法代碼示例。如果您正苦於以下問題：C++ AudioUnitGetProperty函數的具體用法？C++ AudioUnitGetProperty怎麽用？C++ AudioUnitGetProperty使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。

在下文中一共展示了AudioUnitGetProperty函數的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C++代碼示例。

示例1: sizeof

std::vector<AudioStreamBasicDescription> ofxAudioUnitMatrixMixer::getASBDs() const
{
	std::vector<AudioStreamBasicDescription> ASBDs;
	AudioStreamBasicDescription inputASBD, outputASBD;
	UInt32 inputSize, outputSize;
	inputSize = outputSize = sizeof(UInt32);
	
	OFXAU_PRINT(AudioUnitGetProperty(*_unit,
									 kAudioUnitProperty_StreamFormat,
									 kAudioUnitScope_Input,
									 0,
									 &inputASBD,
									 &inputSize),
				"getting matrix mixer input ASBD");
	
	OFXAU_PRINT(AudioUnitGetProperty(*_unit,
									 kAudioUnitProperty_StreamFormat,
									 kAudioUnitScope_Output,
									 0,
									 &outputASBD,
									 &outputSize),
				"getting matrix mixer output ASBD");
	
	ASBDs.push_back(inputASBD);
	ASBDs.push_back(outputASBD);
	return ASBDs;
}

開發者ID:CLOUDS-Interactive-Documentary，項目名稱:ofxAudioUnit，代碼行數:27，代碼來源:ofxAudioUnitMatrixMixer.cpp

示例2: Init

	// get the fast dispatch pointers
	void Init()
	{
		UInt32 size = sizeof(AudioUnitRenderProc);
		if (AudioUnitGetProperty(mUnit, kAudioUnitProperty_FastDispatch,
								kAudioUnitScope_Global, kAudioUnitRenderSelect,
								&mRenderProc, &size) != noErr)
			mRenderProc = NULL;
		if (AudioUnitGetProperty(mUnit, kAudioUnitProperty_FastDispatch,
								kAudioUnitScope_Global, kAudioUnitGetParameterSelect,
								&mGetParamProc, &size) != noErr)
			mGetParamProc = NULL;
		if (AudioUnitGetProperty(mUnit, kAudioUnitProperty_FastDispatch,
								kAudioUnitScope_Global, kAudioUnitSetParameterSelect,
								&mSetParamProc, &size) != noErr)
			mSetParamProc = NULL;

		if (AudioUnitGetProperty(mUnit, kAudioUnitProperty_FastDispatch,
								kAudioUnitScope_Global, kMusicDeviceMIDIEventSelect,
								&mMIDIEventProc, &size) != noErr)
			mMIDIEventProc = NULL;

		if (mRenderProc || mGetParamProc || mSetParamProc || mMIDIEventProc)
			mConnInstanceStorage = GetComponentInstanceStorage(mUnit);
		else
			mConnInstanceStorage = NULL;
	}

開發者ID:63n，項目名稱:ardour，代碼行數:27，代碼來源:CAAudioUnit.cpp

示例3: sizeof

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//	AUMixer3DView::SetRenderingFlagsCheckboxes
//
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void	AUMixer3DView::SetRenderingFlagsCheckboxes()
{
	// set the check boxes according to the current rendering flags
	UInt32 flags;
	UInt32 size = sizeof(flags);
	
	AudioUnitGetProperty(
		GetEditAudioUnit(),
		kAudioUnitProperty_3DMixerRenderingFlags,
		kAudioUnitScope_Input,
		0,
		&flags,
		&size );

	UInt32 usesReverb = 0;
	AudioUnitGetProperty(
		GetEditAudioUnit(),
		kAudioUnitProperty_UsesInternalReverb,
		kAudioUnitScope_Input,
		0,
		&usesReverb,
		&size );

	SetCheckbox('atr0', 1, flags & k3DMixerRenderingFlags_InterAuralDelay );
	SetCheckbox('atr1', 2, flags & k3DMixerRenderingFlags_DopplerShift );
	SetCheckbox('atr2', 3, flags & k3DMixerRenderingFlags_DistanceAttenuation );
	SetCheckbox('atr3', 4, flags & k3DMixerRenderingFlags_DistanceFilter );
	SetCheckbox('atr4', 5, flags & k3DMixerRenderingFlags_DistanceDiffusion );
	SetCheckbox('rvrb', 6, usesReverb );
	::UpdateControls(GetCarbonWindow(), NULL );
}

開發者ID:arnelh，項目名稱:Examples，代碼行數:35，代碼來源:AUMixer3DView.cpp

示例4: PrintMatrixMixerVolumes

void	PrintMatrixMixerVolumes (FILE* file, AudioUnit au)
{
	UInt32 dims[2];
	UInt32 theSize =  sizeof(UInt32) * 2;
	Float32 *theVols = NULL;
	OSStatus result;
	
// this call will fail if the unit is NOT initialized as it would present an incomplete state	
	ca_require_noerr (result = AudioUnitGetProperty (au, kAudioUnitProperty_MatrixDimensions,	
							kAudioUnitScope_Global, 0, dims, &theSize), home);

	theSize = ((dims[0] + 1) * (dims[1] + 1)) * sizeof(Float32);
	
	theVols	= static_cast<Float32*> (malloc (theSize));
	
	ca_require_noerr (result = AudioUnitGetProperty (au, kAudioUnitProperty_MatrixLevels,	
							kAudioUnitScope_Global, 0, theVols, &theSize), home);

home:
	if (result) {
		if (theVols)
			free(theVols);
		return;
	}
	
	theSize /= sizeof(Float32);
	
	unsigned int inputs = dims[0];
	unsigned int outputs = dims[1];

	fprintf (file, "\tInput Channels = %d, Output Channels = %d\n", (int)dims[0], (int)dims[1]);
	PrintBuses (file, "Input", au, kAudioUnitScope_Input);
	PrintBuses (file, "Output", au, kAudioUnitScope_Output);
	fprintf (file, "\tGlobal Volume: %.3f\n", theVols [theSize - 1]);
	for (unsigned int i = 0; i < (inputs + 1); ++i) {
		if (i < inputs) {
			fprintf (file, "\t%.3f   ", theVols[(i + 1) * (outputs + 1) - 1]);
			
			for (unsigned int j = 0; j < outputs; ++j)
				fprintf (file, "(%.3f) ", theVols[(i * (outputs  + 1)) + j]);
		} else {
			fprintf (file, "\t        ");
			for (unsigned int j = 0; j < outputs; ++j)
				fprintf (file, " %.3f  ", theVols[(i * (outputs + 1)) + j]);
		}
		fprintf (file, "\n");
	}

#if 0
	for (unsigned int i = 0; i < theSize; ++i)
		printf ("%f, ", theVols[i]);
#endif
	free(theVols);
}

開發者ID:abscura，項目名稱:audiounitjs，代碼行數:54，代碼來源:MatrixMixerVolumes.cpp

示例5: notification

static OSStatus notification(AudioDeviceID inDevice,
							UInt32 inChannel,
							Boolean	isInput,
							AudioDevicePropertyID inPropertyID,
							void* inClientData)
{
    coreaudio_driver_t* driver = (coreaudio_driver_t*)inClientData;
    switch (inPropertyID) {
	
		case kAudioDeviceProcessorOverload:
			driver->xrun_detected = 1;
			break;
			
		case kAudioDevicePropertyNominalSampleRate: {
			UInt32 outSize =  sizeof(Float64);
			Float64 sampleRate;
			AudioStreamBasicDescription srcFormat, dstFormat;
			OSStatus err = AudioDeviceGetProperty(driver->device_id, 0, kAudioDeviceSectionGlobal, kAudioDevicePropertyNominalSampleRate, &outSize, &sampleRate);
			if (err != noErr) {
				jack_error("Cannot get current sample rate");
				return kAudioHardwareUnsupportedOperationError;
			}
			JCALog("JackCoreAudioDriver::NotificationCallback kAudioDevicePropertyNominalSampleRate %ld\n", (long)sampleRate);
			outSize = sizeof(AudioStreamBasicDescription);
			
			// Update SR for input
			err = AudioUnitGetProperty(driver->au_hal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &srcFormat, &outSize);
			if (err != noErr) {
				jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Input");
			}
			srcFormat.mSampleRate = sampleRate;
			err = AudioUnitSetProperty(driver->au_hal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, &srcFormat, outSize);
			if (err != noErr) {
				jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Input");
			}
		
			// Update SR for output
			err = AudioUnitGetProperty(driver->au_hal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &dstFormat, &outSize);
			if (err != noErr) {
				jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Output");
			}
			dstFormat.mSampleRate = sampleRate;
			err = AudioUnitSetProperty(driver->au_hal, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 1, &dstFormat, outSize);
			if (err != noErr) {
				jack_error("Error calling AudioUnitSetProperty - kAudioUnitProperty_StreamFormat kAudioUnitScope_Output");
			}
			break;
		}
    }
    return noErr;
}

開發者ID:Llefjord，項目名稱:jack1，代碼行數:51，代碼來源:coreaudio_driver.c

示例6: sizeof

OSStatus	CAAudioUnit::GetAUPreset (CFPropertyListRef &outData) const
{
	UInt32 dataSize = sizeof(outData);
	return AudioUnitGetProperty (AU(), kAudioUnitProperty_ClassInfo,
								kAudioUnitScope_Global, 0,
								&outData, &dataSize);
}

開發者ID:63n，項目名稱:ardour，代碼行數:7，代碼來源:CAAudioUnit.cpp

示例7: AudioUnitGetPropertyInfo

bool CCoreAudioUnit::GetSupportedChannelLayouts(AudioChannelLayoutList* pLayouts)
{
  if (!m_audioUnit || !pLayouts)
    return false;

  UInt32 propSize = 0;
  Boolean writable = false;
  OSStatus ret = AudioUnitGetPropertyInfo(m_audioUnit,
    kAudioUnitProperty_SupportedChannelLayoutTags, kAudioUnitScope_Input, 0, &propSize, &writable);
  if (ret)
  {
    CLog::Log(LOGERROR, "CCoreAudioUnit::GetSupportedChannelLayouts: "
      "Unable to retrieve supported channel layout property info. Error = %s", GetError(ret).c_str());
    return false;
  }
  UInt32 layoutCount = propSize / sizeof(AudioChannelLayoutTag);
  AudioChannelLayoutTag* pSuppLayouts = new AudioChannelLayoutTag[layoutCount];
  ret = AudioUnitGetProperty(m_audioUnit,
    kAudioUnitProperty_SupportedChannelLayoutTags, kAudioUnitScope_Output, 0, pSuppLayouts, &propSize);
  if (ret)
  {
    CLog::Log(LOGERROR, "CCoreAudioUnit::GetSupportedChannelLayouts: "
      "Unable to retrieve supported channel layouts. Error = %s", GetError(ret).c_str());
    return false;
  }
  for (UInt32 layout = 0; layout < layoutCount; layout++)
    pLayouts->push_back(pSuppLayouts[layout]);
  delete[] pSuppLayouts;
  return true;
}

開發者ID:JohnsonAugustine，項目名稱:xbmc-rbp，代碼行數:30，代碼來源:CoreAudioUnit.cpp

示例8: sizeof

Float32 CAAUParameter::GetValueFromString(CFStringRef str) const
{
	if (ValuesHaveStrings()) 
	{
		AudioUnitParameterValueFromString valueString;
		valueString.inParamID = mParameterID;
		valueString.inString = str;
		UInt32 propertySize = sizeof(valueString);
		
		OSStatus err = AudioUnitGetProperty (mAudioUnit, 
										kAudioUnitProperty_ParameterValueFromString,
										mScope, 
										mParameterID, 
										&valueString, 
										&propertySize);
										
		if (err == noErr) {
			return valueString.outValue;
		}
	}
	
	Float32 paramValue = mParamInfo.defaultValue;
	char valstr[32];
	CFStringGetCString(str, valstr, sizeof(valstr), kCFStringEncodingUTF8);
	sscanf(valstr, "%f", &paramValue);
	return paramValue;
}

開發者ID:DanielAeolusLaude，項目名稱:ardour，代碼行數:27，代碼來源:CAAUParameter.cpp

示例9: sizeof

// ----------------------------------------------------------
void ofxAudioUnitInput::connectTo(ofxAudioUnit &otherUnit, int destinationBus, int sourceBus)
// ----------------------------------------------------------
{
	AURenderCallbackStruct callback;
	callback.inputProc = pullCallback;
	callback.inputProcRefCon = &_renderContext;
	
	AudioStreamBasicDescription ASBD;
	UInt32 ASBDSize = sizeof(ASBD);
	
	OFXAU_RETURN(AudioUnitGetProperty(*otherUnit.getUnit(),
									  kAudioUnitProperty_StreamFormat,
									  kAudioUnitScope_Input,
									  destinationBus,
									  &ASBD,
									  &ASBDSize),
				 "getting hardware input destination's format");
	
	OFXAU_RETURN(AudioUnitSetProperty(*_unit,
									  kAudioUnitProperty_StreamFormat,
									  kAudioUnitScope_Output,
									  1,
									  &ASBD,
									  sizeof(ASBD)),
				 "setting hardware input's output format");
	
	otherUnit.setRenderCallback(callback, destinationBus);
}

開發者ID:jasonlevine，項目名稱:ofxAudioUnit，代碼行數:29，代碼來源:ofxAudioUnitInput.cpp

示例10: sizeof

// ----------------------------------------------------------
ofxAudioUnit& ofxAudioUnitInput::connectTo(ofxAudioUnit &otherUnit, int destinationBus, int sourceBus)
// ----------------------------------------------------------
{
	AudioStreamBasicDescription ASBD;
	UInt32 ASBDSize = sizeof(ASBD);
	
	OFXAU_PRINT(AudioUnitGetProperty(otherUnit,
									 kAudioUnitProperty_StreamFormat,
									 kAudioUnitScope_Input,
									 destinationBus,
									 &ASBD,
									 &ASBDSize),
				"getting hardware input destination's format");
	
	OFXAU_PRINT(AudioUnitSetProperty(*_unit,
									 kAudioUnitProperty_StreamFormat,
									 kAudioUnitScope_Output,
									 1,
									 &ASBD,
									 sizeof(ASBD)),
				"setting hardware input's output format");
	
	AURenderCallbackStruct callback = {PullCallback, &_impl->ctx};
	otherUnit.setRenderCallback(callback, destinationBus);
	return otherUnit;
}

開發者ID:microcosm，項目名稱:ofxAudioUnit，代碼行數:27，代碼來源:ofxAudioUnitInput.cpp

示例11: AudioUnitSetProperty

void AudioDestinationIOS::configure()
{
    // Set render callback
    AURenderCallbackStruct input;
    input.inputProc = inputProc;
    input.inputProcRefCon = this;
    OSStatus result = AudioUnitSetProperty(m_outputUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input, 0, &input, sizeof(input));
    ASSERT(!result);

    // Set stream format
    AudioStreamBasicDescription streamFormat;

    UInt32 size = sizeof(AudioStreamBasicDescription);
    result = AudioUnitGetProperty(m_outputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Output, 0, (void*)&streamFormat, &size);
    ASSERT(!result);

    const int bytesPerFloat = sizeof(Float32);
    const int bitsPerByte = 8;
    streamFormat.mSampleRate = m_sampleRate;
    streamFormat.mFormatID = kAudioFormatLinearPCM;
    streamFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
    streamFormat.mBytesPerPacket = bytesPerFloat;
    streamFormat.mFramesPerPacket = 1;
    streamFormat.mBytesPerFrame = bytesPerFloat;
    streamFormat.mChannelsPerFrame = 2;
    streamFormat.mBitsPerChannel = bitsPerByte * bytesPerFloat;

    result = AudioUnitSetProperty(m_outputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, (void*)&streamFormat, sizeof(AudioStreamBasicDescription));
    ASSERT(!result);

    AudioSession::sharedSession().setPreferredBufferSize(kPreferredBufferSize);
}

開發者ID:AndriyKalashnykov，項目名稱:webkit，代碼行數:32，代碼來源:AudioDestinationIOS.cpp

示例12: sizeof

const Boolean AudioUnitNode::doBypass() const
{
    UInt32 doB;
    UInt32 size = sizeof(UInt32);
    AudioUnitGetProperty(mUnit, kAudioUnitProperty_BypassEffect, kAudioUnitScope_Global, 0, &doB, &size);
    return doB == 1 ? true : false;
}

開發者ID:satoshi-takano，項目名稱:ExtendedAudioUnit，代碼行數:7，代碼來源:AudioUnitNode.cpp

示例13: _impl

// ----------------------------------------------------------
ofxAudioUnitInput::ofxAudioUnitInput(unsigned int samplesToBuffer)
: _impl(new InputImpl)
// ----------------------------------------------------------
{
	_desc = inputDesc;
	initUnit();
	
	AudioStreamBasicDescription ASBD = {0};
	UInt32 ASBD_size = sizeof(ASBD);
	OFXAU_PRINT(AudioUnitGetProperty(*_unit,
									 kAudioUnitProperty_StreamFormat,
									 kAudioUnitScope_Output,
									 1,
									 &ASBD,
									 &ASBD_size),
				"getting input ASBD");
	
	_impl->ctx.inputUnit  = _unit;
	_impl->ctx.bufferList = AudioBufferListRef(AudioBufferListAlloc(ASBD.mChannelsPerFrame, 1024), AudioBufferListRelease);
	_impl->ctx.circularBuffers.resize(ASBD.mChannelsPerFrame);
	_impl->isReady = false;
	
#if !TARGET_OS_IPHONE
	_impl->inputDeviceID = DefaultAudioInputDevice();
#endif
	
	for(int i = 0; i < ASBD.mChannelsPerFrame; i++) {
		TPCircularBufferInit(&_impl->ctx.circularBuffers[i], samplesToBuffer * sizeof(Float32));
	}
}

開發者ID:microcosm，項目名稱:ofxAudioUnit，代碼行數:31，代碼來源:ofxAudioUnitInput.cpp

示例14: gst_core_audio_get_samples_and_latency_impl

static gboolean
gst_core_audio_get_samples_and_latency_impl (GstCoreAudio * core_audio,
    gdouble rate, guint * samples, gdouble * latency)
{
  OSStatus status;
  UInt32 size = sizeof (double);

  if (core_audio->is_passthrough) {
    *samples = _audio_device_get_latency (core_audio->device_id);
    *samples += _audio_stream_get_latency (core_audio->stream_id);
    *latency = (double) *samples / rate;
  } else {
    status = AudioUnitGetProperty (core_audio->audiounit, kAudioUnitProperty_Latency, kAudioUnitScope_Global, 0,        /* N/A for global */
        latency, &size);

    if (status) {
      GST_WARNING_OBJECT (core_audio->osxbuf, "Failed to get latency: %d",
          (int) status);
      *samples = 0;
      return FALSE;
    }

    *samples = *latency * rate;
  }
  return TRUE;
}

開發者ID:Distrotech，項目名稱:gst-plugins-good，代碼行數:26，代碼來源:gstosxcoreaudiohal.c

示例15: ca_get_hardware_latency

static int64_t ca_get_hardware_latency(struct ao *ao) {
    struct priv *p = ao->priv;

    double audiounit_latency_sec = 0.0;
    uint32_t size = sizeof(audiounit_latency_sec);
    OSStatus err = AudioUnitGetProperty(
            p->audio_unit,
            kAudioUnitProperty_Latency,
            kAudioUnitScope_Global,
            0,
            &audiounit_latency_sec,
            &size);
    CHECK_CA_ERROR("cannot get audio unit latency");

    uint32_t frames = 0;
    err = CA_GET_O(p->device, kAudioDevicePropertyLatency, &frames);
    CHECK_CA_ERROR("cannot get device latency");

    uint64_t audiounit_latency_us = audiounit_latency_sec * 1e6;
    uint64_t device_latency_us    = ca_frames_to_us(ao, frames);

    MP_VERBOSE(ao, "audiounit latency [us]: %lld\n", audiounit_latency_us);
    MP_VERBOSE(ao, "device latency [us]: %lld\n", device_latency_us);

    return audiounit_latency_us + device_latency_us;

coreaudio_error:
    return 0;
}

開發者ID:BILIHUBSU，項目名稱:mpv，代碼行數:29，代碼來源:ao_coreaudio.c

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