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C++ Pa_GetDefaultInputDevice函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中Pa_GetDefaultInputDevice函数的典型用法代码示例。如果您正苦于以下问题：C++ Pa_GetDefaultInputDevice函数的具体用法？C++ Pa_GetDefaultInputDevice怎么用？C++ Pa_GetDefaultInputDevice使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了Pa_GetDefaultInputDevice函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: main

int main(void)
{
    PaStreamParameters inputParameters, outputParameters;
    PaStream *stream;
    PaError err;

    err = Pa_Initialize();
    if( err != paNoError ) goto error;

    inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
    if (inputParameters.device == paNoDevice) {
      fprintf(stderr,"Error: No default input device.\n");
      goto error;
    }
    inputParameters.channelCount = 2;       /* stereo input */
    inputParameters.sampleFormat = PA_SAMPLE_TYPE;
    inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
    inputParameters.hostApiSpecificStreamInfo = NULL;

    outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
    if (outputParameters.device == paNoDevice) {
      fprintf(stderr,"Error: No default output device.\n");
      goto error;
    }
    outputParameters.channelCount = 2;       /* stereo output */
    outputParameters.sampleFormat = PA_SAMPLE_TYPE;
    outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
    outputParameters.hostApiSpecificStreamInfo = NULL;

    err = Pa_OpenStream(
              &stream,
              &inputParameters,
              &outputParameters,
              SAMPLE_RATE,
              FRAMES_PER_BUFFER,
              0, /* paClipOff, */  /* we won't output out of range samples so don't bother clipping them */
              fuzzCallback,
              NULL );
    if( err != paNoError ) goto error;

    err = Pa_StartStream( stream );
    if( err != paNoError ) goto error;

    printf("Hit ENTER to stop program.\n");
    getchar();
    err = Pa_CloseStream( stream );
    if( err != paNoError ) goto error;

    printf("Finished. gNumNoInputs = %d\n", gNumNoInputs );
    Pa_Terminate();
    return 0;

error:
    Pa_Terminate();
    fprintf( stderr, "An error occured while using the portaudio stream\n" );
    fprintf( stderr, "Error number: %d\n", err );
    fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
    return -1;
}
开发者ID:edd83，项目名称:Skype-like，代码行数:59，代码来源:pa_fuzz.c


示例2: initializeAudio

bool initializeAudio()
{
	PaError err=Pa_Initialize();

#ifdef MAKETEST
	printf("Devs: %d\ndefInp: %d\n", Pa_GetDeviceCount(), Pa_GetDefaultInputDevice());

	const PaDeviceInfo*di=Pa_GetDeviceInfo(Pa_GetDefaultInputDevice());
	printf("defNfo: %s\ndefHostApi: %d\n", di->name, di->hostApi);
#endif

	pthread_spin_init(&recBufferLock, 0);
	recBuffer=0;
	audioStream=0;
	
	return (err==paNoError);
}
开发者ID:detlevn，项目名称:qgismapper，代码行数:17，代码来源:PluginAudioWorker.cpp


示例3: Pa_GetDefaultInputDevice

bool AudioStream::setInputDevice(int device, AudioSample::eChannel channel, eLatency latency)
{
    if (device < 0)
        device = Pa_GetDefaultInputDevice();

    _inputDevice = device;
    return _setDevice(device, channel, latency, _inputParameter, INPUT_STREAM, _inputDeviceInfo);
}
开发者ID:Wayt，项目名称:Skypy，代码行数:8，代码来源:audiostream.cpp


示例4: default_device_names

    std::pair<std::string, std::string> default_device_names()
    {
        const PaDeviceIndex default_input = Pa_GetDefaultInputDevice();
        const PaDeviceIndex default_output = Pa_GetDefaultOutputDevice();

        std::cout << default_input << " " << default_output;

        return std::make_pair(device_name(default_input), device_name(default_output));
    }
开发者ID:giuliomoro，项目名称:supercollider，代码行数:9，代码来源:portaudio_backend.hpp


示例5: Pa_Initialize

bool AudioCapturePortAudio::initialize()
{
    PaError err;
    PaStreamParameters inputParameters;

    err = Pa_Initialize();
    if( err != paNoError )
        return false;

    QSettings settings;
    QVariant var = settings.value(SETTINGS_AUDIO_INPUT_DEVICE);
    if (var.isValid() == true)
        inputParameters.device = QString(var.toString()).toInt();
    else
        inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */

    if (inputParameters.device == paNoDevice)
    {
        qWarning("Error: No default input device found.\n");
        Pa_Terminate();
        return false;
    }

    inputParameters.channelCount = m_channels;
    inputParameters.sampleFormat = paInt16;
    inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
    inputParameters.hostApiSpecificStreamInfo = NULL;

    // ensure initialize() has not been called multiple times
    Q_ASSERT(stream == NULL);

    /* -- setup stream -- */
    err = Pa_OpenStream( &stream, &inputParameters, NULL, m_sampleRate, paFramesPerBufferUnspecified,
              paClipOff, /* we won't output out of range samples so don't bother clipping them */
              NULL, /* no callback, use blocking API */
              NULL ); /* no callback, so no callback userData */
    if( err != paNoError )
    {
        qWarning("Cannot open audio input stream (%s)\n",  Pa_GetErrorText(err));
        Pa_Terminate();
        return false;
    }

    /* -- start capture -- */
    err = Pa_StartStream( stream );
    if( err != paNoError )
    {
        qWarning("Cannot start stream capture (%s)\n",  Pa_GetErrorText(err));
        Pa_CloseStream( stream );
        stream = NULL;
        Pa_Terminate();
        return false;
    }

    return true;
}
开发者ID:PML369，项目名称:qlcplus，代码行数:56，代码来源:audiocapture_portaudio.cpp


示例6: snd_open_stream

int snd_open_stream()
{
	  faacEncConfigurationPtr pConfiguration; 
    hEncoder = faacEncOpen(samplerate, channel, &nInputSamples, &nMaxOutputBytes);
    if(hEncoder == NULL)
    {
        printf("[ERROR] Failed to call faacEncOpen()\n");
        return -1;
    }

    // (2.1) Get current encoding configuration
    pConfiguration = faacEncGetCurrentConfiguration(hEncoder);
    pConfiguration->inputFormat = FAAC_INPUT_16BIT;

    // (2.2) Set encoding configuration
    int nRet = faacEncSetConfiguration(hEncoder, pConfiguration);
    
    pbAACBuffer = new unsigned char [nMaxOutputBytes];


		////////////////////////
    char info_buf[256];

    PaStreamParameters pa_params;
    PaError pa_err;
    
    pa_params.device = Pa_GetDefaultInputDevice(); /* default input device */
    if (pa_params.device == paNoDevice) {
        fprintf(stderr,"Error: No default input device.\n");
        return 1;
    }
    pa_params.channelCount = channel;
    pa_params.sampleFormat = paInt16;
    pa_params.suggestedLatency = Pa_GetDeviceInfo(pa_params.device)->defaultHighInputLatency;
    pa_params.hostApiSpecificStreamInfo = NULL;

    pa_err = Pa_IsFormatSupported(&pa_params, NULL, samplerate);
    if(pa_err != paFormatIsSupported)
    {
    	  printf("Samplerate not supported: %dHz\n", samplerate);
        return 1;
    }

    pa_err = Pa_OpenStream(&stream, &pa_params, NULL,
                            samplerate, PA_FRAMES,
                            paNoFlag, snd_callback, NULL);

    if(pa_err != paNoError)
    {
        printf("error opening sound device: \n%s\n", Pa_GetErrorText(pa_err));
        return 1;
    }
    
    Pa_StartStream(stream);
    return 0;
}
开发者ID:leslie-wang，项目名称:faac-test，代码行数:56，代码来源:liveaac.cpp


示例7: Pa_Initialize

int AudioStreamManager::StreamAudio(ISoundDelegate* delegate)
{
	PaStreamParameters inputParameters, outputParameters;
	PaError err;

	soundDelegate = delegate;

	err = Pa_Initialize();
	if (err != paNoError) goto error;

	inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
	if (inputParameters.device == paNoDevice) {
		fprintf(stderr, "Error: No default input device.\n");
		goto error;
	}
	inputParameters.channelCount = 2;       /* stereo input */
	inputParameters.sampleFormat = PA_SAMPLE_TYPE;
	inputParameters.suggestedLatency = Pa_GetDeviceInfo(inputParameters.device)->defaultLowInputLatency;
	inputParameters.hostApiSpecificStreamInfo = NULL;

	outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
	if (outputParameters.device == paNoDevice) {
		fprintf(stderr, "Error: No default output device.\n");
		goto error;
	}
	outputParameters.channelCount = 2;       /* stereo output */
	outputParameters.sampleFormat = PA_SAMPLE_TYPE;
	outputParameters.suggestedLatency = Pa_GetDeviceInfo(outputParameters.device)->defaultLowOutputLatency;
	outputParameters.hostApiSpecificStreamInfo = NULL;
	
	err = Pa_OpenStream(
		&audioStream,
		&inputParameters,
		&outputParameters,
		SAMPLE_RATE,
		FRAMES_PER_BUFFER,
		0, /* paClipOff, */  /* we won't output out of range samples so don't bother clipping them */
		readStreamCallback,
		NULL);
	if (err != paNoError) goto error;

	delegate->willBeginPlay();

	err = Pa_StartStream(audioStream);
	if (err != paNoError) goto error;	
	return 0;

error:
	Pa_Terminate();
	fprintf(stderr, "An error occured while using the portaudio stream\n");
	fprintf(stderr, "Error number: %d\n", err);
	fprintf(stderr, "Error message: %s\n", Pa_GetErrorText(err));
	delegate->didEndPlay();
	return -1;
}
开发者ID:garbagemza，项目名称:fv1-emu，代码行数:55，代码来源:AudioStreamManager.cpp


示例8: freeBuffers

void GuitarSori::init( const int mFramesPerBuffer, const int mNumChannels, const int mSampleSize, PaSampleFormat mSampleFormat, const double mSampleRate)
{
	int numBytes, numBytesConverted;

	framesPerBuffer = mFramesPerBuffer;
	numChannels = mNumChannels;
	sampleSize = mSampleSize;
	sampleFormat = mSampleFormat;
	sampleRate = mSampleRate;

	numBytes = mFramesPerBuffer * mNumChannels * mSampleSize;
	numBytesConverted = mFramesPerBuffer * mNumChannels * 8;

	freeBuffers();
	sampleBlock = (char *)malloc(numBytes);
	sampleBlockConverted = (double *)malloc(numBytesConverted);
	sampleBlockFFT = (double *)malloc(numBytesConverted / 2);

	if ( !isBuffersReady() )
	{
		printf("Cannot allocate sample block\n");
		return;
	}

	memset(sampleBlock, 0x00, numBytes);
	memset(sampleBlockConverted, 0x00, numBytesConverted);
	memset(sampleBlockFFT, 0x00, numBytesConverted / 2);

	err = Pa_Initialize();

	printf("──────────────────────────────\n");
	inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
	inputParameters.device = 1;
	printf("Input device # %d. : %s\n", inputParameters.device, Pa_GetDeviceInfo(inputParameters.device)->name);
	printf("Input LL: %g s\n", Pa_GetDeviceInfo(inputParameters.device)->defaultLowInputLatency);
	printf("Input HL: %g s\n", Pa_GetDeviceInfo(inputParameters.device)->defaultHighInputLatency);
	printf("Input HL: %g s\n", Pa_GetDeviceInfo(inputParameters.device)->defaultHighInputLatency);
	printf("Input Channel(MAX.) : %d ", Pa_GetDeviceInfo(inputParameters.device)->maxInputChannels);
	inputParameters.channelCount = numChannels;
	inputParameters.sampleFormat = sampleFormat;
	inputParameters.suggestedLatency = Pa_GetDeviceInfo(inputParameters.device)->defaultHighInputLatency;
	inputParameters.hostApiSpecificStreamInfo = NULL;

	outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
	printf("Output device # %d.\n", outputParameters.device);
	printf("Output LL: %g s\n", Pa_GetDeviceInfo(outputParameters.device)->defaultLowOutputLatency);
	printf("Output HL: %g s\n", Pa_GetDeviceInfo(outputParameters.device)->defaultHighOutputLatency);
	outputParameters.channelCount = numChannels;
	outputParameters.sampleFormat = sampleFormat;
	outputParameters.suggestedLatency = Pa_GetDeviceInfo(outputParameters.device)->defaultHighOutputLatency;
	outputParameters.hostApiSpecificStreamInfo = NULL;

	err = Pa_OpenStream(&stream, &inputParameters, &outputParameters, sampleRate, framesPerBuffer, paClipOff, NULL, NULL);
	err = Pa_StartStream(stream);
}
开发者ID:flpeng00，项目名称:GuitarSori，代码行数:55，代码来源:GuitarSori.cpp


示例9: quisk_pa_name2index

static int quisk_pa_name2index (struct sound_dev * dev, int is_capture)
{	// Based on the device name, set the portaudio index, or -1.
	// Return non-zero for error.  Not a portaudio device is not an error.
	const PaDeviceInfo * pInfo;
	int i, count;

	if (strncmp (dev->name, "portaudio", 9)) {
		dev->portaudio_index = -1;	// Name does not start with "portaudio"
		return 0;		// Not a portaudio device, not an error
	}
	if ( ! strcmp (dev->name, "portaudiodefault")) {
		if (is_capture)		// Fill in the default device index
			dev->portaudio_index = Pa_GetDefaultInputDevice();
		else
			dev->portaudio_index = Pa_GetDefaultOutputDevice();
		strncpy (dev->msg1, "Using default portaudio device", QUISK_SC_SIZE);
		return 0;
	}
	if ( ! strncmp (dev->name, "portaudio#", 10)) {		// Integer index follows "#"
		dev->portaudio_index = i = atoi(dev->name + 10);
		pInfo = Pa_GetDeviceInfo(i);
		if (pInfo) {
			snprintf (dev->msg1, QUISK_SC_SIZE, "PortAudio device %s",  pInfo->name);
			return 0;
		}
		else {
			snprintf (quisk_sound_state.err_msg, QUISK_SC_SIZE,
				"Can not find portaudio device number %s", dev->name + 10);
		}
		return 1;
	}
	if ( ! strncmp (dev->name, "portaudio:", 10)) {
		dev->portaudio_index = -1;
		count = Pa_GetDeviceCount();		// Search for string in device name
		for (i = 0; i < count; i++) {
			pInfo = Pa_GetDeviceInfo(i);
			if (pInfo && strstr(pInfo->name, dev->name + 10)) {
				dev->portaudio_index = i;
				snprintf (dev->msg1, QUISK_SC_SIZE, "PortAudio device %s",  pInfo->name);
				break;
			}
		}
		if (dev->portaudio_index == -1)	{	// Error
			snprintf (quisk_sound_state.err_msg, QUISK_SC_SIZE,
				"Can not find portaudio device named %s", dev->name + 10);
			return 1;
		}
		return 0;
	}
	snprintf (quisk_sound_state.err_msg, QUISK_SC_SIZE,
		"Did not recognize portaudio device %s", dev->name);
	return 1;
}
开发者ID:JeremyGrosser，项目名称:quisk，代码行数:53，代码来源:sound_portaudio.c


示例10: Pa_GetDefaultInputDevice

PaDeviceIndex SoundcardDialog::getInputSource()
{
    int index = ui->inputComboBox->currentIndex();
    if (index == -1)
    {
        // no item was selected, so we return the
        // default input device
        return Pa_GetDefaultInputDevice();
    }
    else
    {
        bool ok;
        PaDeviceIndex idx = ui->inputComboBox->itemData(index).toInt(&ok);
        if (!ok)
        {
            // conversion to int not succesfull
            // return the default input device .. :(
            return Pa_GetDefaultInputDevice();
        }
        return idx;
    }
}
开发者ID:trcwm，项目名称:BasicDSP，代码行数:22，代码来源:soundcarddialog.cpp


示例11: FindInputOnlyDevice

static PaDeviceIndex FindInputOnlyDevice(void)
{
    PaDeviceIndex result = Pa_GetDefaultInputDevice();
    if( result != paNoDevice && Pa_GetDeviceInfo(result)->maxOutputChannels == 0 )
        return result;

    for( result = 0; result < Pa_GetDeviceCount(); ++result )
    {
        if( Pa_GetDeviceInfo(result)->maxOutputChannels == 0 )
            return result;
    }

    return paNoDevice;
}
开发者ID:Kirushanr，项目名称:audacity，代码行数:14，代码来源:paqa_errs.c


示例12: Pa_GetDeviceCount

void PortAudioHelper::loadDevices() {
    DEVICE_COUNT = Pa_GetDeviceCount();
    DEFAULT_INPUT_DEVICE = Pa_GetDefaultInputDevice();
    DEFAULT_OUTPUT_DEVICE = Pa_GetDefaultOutputDevice();
    for (PaDeviceIndex i=0; i<DEVICE_COUNT; i++) {
        AudioDeviceInfo deviceInfo;
        deviceInfo.deviceInfo = *Pa_GetDeviceInfo(i);
        deviceInfo.supportedSampleRates = getSupportedSampleRate(i);
        DEVICES.append(deviceInfo);
    }

    CURRENT_INPUT_DEVICE = loadFromSettings(keyDefaultInputDevice, DEFAULT_INPUT_DEVICE).toInt();
    CURRENT_OUTPUT_DEVICE = loadFromSettings(keyDefaultOutputDevice, DEFAULT_OUTPUT_DEVICE).toInt();
}
开发者ID:mohabouje，项目名称:phonospeechstudio，代码行数:14，代码来源:portaudiohelper.cpp


示例13: strlen

int AudioRecorder::open(const char* file)
{
  size_t s = strlen(file);
  char* filename = new char[s];
  strncpy(filename, file, s);
  PaError err;
  file_ = new AudioFile(filename);

  if ((err = file_->open(AudioFile::Write))) {
    HANDLE_PA_ERROR(err);
    return err;
  }

  ring_buffer_ = new RingBuffer<SamplesType, 4>(chunk_size_);

  err = Pa_Initialize();
  if(err != paNoError) {
    HANDLE_PA_ERROR(err);
  }

  input_params_.device = Pa_GetDefaultInputDevice();
  if (input_params_.device == paNoDevice) {
    HANDLE_PA_ERROR(err);
  }

  input_params_.channelCount = 1;
  input_params_.sampleFormat = paFloat32;
  input_params_.suggestedLatency = Pa_GetDeviceInfo( input_params_.device )->defaultLowInputLatency;
  input_params_.hostApiSpecificStreamInfo = NULL;

  err = Pa_OpenStream(
      &stream_,
      &input_params_,
      NULL,
      file_->samplerate(),
      chunk_size_,
      paClipOff,
      audio_callback,
      this);

  if(err != paNoError) {
    HANDLE_PA_ERROR(err);
  }

  err = Pa_SetStreamFinishedCallback(stream_, &finished_callback);
  if(err != paNoError) {
    HANDLE_PA_ERROR(err);
  }
  return 0;
}
开发者ID:padenot，项目名称:AudioTechnology，代码行数:50，代码来源:AudioRecorder.cpp


示例14: Pa_GetDefaultInputDevice

QString DevicePortAudio::deviceInputDefaultName()
{
	PaDeviceIndex		 DevIdx = Pa_GetDefaultInputDevice();

	if( DevIdx == paNoDevice )
	{
		return( QString() );
	}

	const PaDeviceInfo	*DevInf = Pa_GetDeviceInfo( DevIdx );

	const PaHostApiInfo *HstInf = Pa_GetHostApiInfo( DevInf->hostApi );

	return( QString( "%1: %2" ).arg( HstInf->name ).arg( DevInf->name ) );
}
开发者ID:Daandelange，项目名称:Fugio，代码行数:15，代码来源:deviceportaudio.cpp


示例15: return

bool			PAudioStream::initInput()
{
  if (_buffer->input == NULL)
    return (false);
  if ((_inputParam.device = Pa_GetDefaultInputDevice()) == paNoDevice)
    {
      qDebug() << "No default input device.";
      return (false);
    }
  _inputParam.channelCount = NUM_CHANNELS;
  _inputParam.sampleFormat = PA_SAMPLE_TYPE;
  _inputParam.suggestedLatency = (Pa_GetDeviceInfo(_inputParam.device))->defaultLowInputLatency;
  _inputParam.hostApiSpecificStreamInfo = NULL;
  return (true);
}
开发者ID:AGuismo，项目名称:V-and-Co-Babel，代码行数:15，代码来源:PAudioStream.cpp


示例16: stream

AudioInput::AudioInput()
    : stream(0)
{
    PaStreamParameters  inputParameters;
    PaError             err = paNoError;
 
    std::cout << "Initializing PortAudio\n";

    err = Pa_Initialize();
    if( err != paNoError ) return;

    std::cout << "Getting default audio input device\n";

    inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
    if (inputParameters.device == paNoDevice) {
        std::cerr << "Error: No default input device.\n";
        return;
    }
    
    inputParameters.channelCount = 1;                    /* mono input */
    inputParameters.sampleFormat = paInt16;
    inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency;
    inputParameters.hostApiSpecificStreamInfo = NULL;
 
    std::cout << "Opening stream\n";

    /* Open audio stream. -------------------------------------------- */
    err = Pa_OpenStream(
        &stream,
        &inputParameters,
        NULL,                  /* &outputParameters, */
        SAMPLE_RATE,
        CHUNK_SIZE,
        paNoFlag,
        NULL,
        NULL);

    if (err != paNoError) {
        std::cerr << "Error opening stream: " << Pa_GetErrorText(err) << '\n';
        return;
    }

    std::cout << "Audio device open\n";

    if ((err = Pa_StartStream(stream)) != paNoError) {
        std::cerr << "Error starting stream: " << Pa_GetErrorText(err) << '\n';
    }
}
开发者ID:ollisal，项目名称:soundnunni，代码行数:48，代码来源:AudioInput.cpp


示例17: portaudio_manager_t

    portaudio_manager_t(int p_sample_rate, int p_size) :
        sample_rate(p_sample_rate), size(p_size),
        input_stream_parameters(), input_stream(NULL) {

        // initialize portaudio to stream from the default audio device
        PaError pa_error;
        pa_error = Pa_Initialize();
        if (pa_error != 0) {
            std::ostringstream ss;
            ss << "failure initializing portaudio " << pa_error;
            throw std::runtime_error(ss.str());
        }
        input_stream_parameters.device = Pa_GetDefaultInputDevice();
        if (input_stream_parameters.device == paNoDevice) {
            throw std::runtime_error("No device.  Cannot continue.");
        }
        input_stream_parameters.channelCount = 1;
        input_stream_parameters.sampleFormat = paFloat32;
        input_stream_parameters.suggestedLatency =
            Pa_GetDeviceInfo(input_stream_parameters.device)->defaultHighInputLatency;
        input_stream_parameters.hostApiSpecificStreamInfo = NULL;

        std::cout << "Opening input "
                  << Pa_GetDeviceInfo(input_stream_parameters.device)->name
                  << "\n";

        pa_error = Pa_OpenStream(&input_stream,
                                 &input_stream_parameters,
                                 NULL,
                                 sample_rate,
                                 size,
                                 paClipOff, // ?
                                 NULL,
                                 NULL);
        if (pa_error != 0) {
            std::ostringstream ss2;
            ss2 << "failure opening input stream " << pa_error;
            throw std::runtime_error(ss2.str());
        }

        // start the input stream
        pa_error = Pa_StartStream(input_stream);
        if (pa_error != 0) {
            std::ostringstream ss3;
            ss3 << "failure starting input stream " << pa_error;
            throw std::runtime_error(ss3.str());
        }
    }
开发者ID:BruceMty，项目名称:soundcheck，代码行数:48，代码来源:portaudio_manager.hpp


示例18: 

void		AudioManager::initInput()
{
    if ((this->_inputParam.device = Pa_GetDefaultInputDevice()) == paNoDevice)
    {
//        std::cout << "ZIZI" << std::endl;
        this->errorAudio();
        return ;
    }
	this->_inputParam.channelCount = 1;
	this->_inputParam.sampleFormat = PA_SAMPLE_TYPE;
	this->_inputParam.suggestedLatency = Pa_GetDeviceInfo(this->_inputParam.device)->defaultHighInputLatency;
	this->_inputParam.hostApiSpecificStreamInfo = NULL;
//	std::cout << "Input device # " << this->_inputParam.device << std::endl;
//	std::cout << "Input LowLatency : " << Pa_GetDeviceInfo(this->_inputParam.device)->defaultLowInputLatency << std::endl;
//	std::cout << "Input HighLatency : " << Pa_GetDeviceInfo(this->_inputParam.device)->defaultHighInputLatency << std::endl;
}
开发者ID:stephanemombuleau，项目名称:babelEpitech，代码行数:16，代码来源:AudioManager.cpp


示例19: pa_defaultinputdevice

static int pa_defaultinputdevice(lua_State *L)
{
  int narg = lua_gettop(L);
  PaDeviceIndex dev;

  if(narg != 0)
    luaL_error(L, "invalid arguments: no argument expected");

  dev = Pa_GetDefaultInputDevice();

  if(dev == paNoDevice)
    return 0;
  else
    lua_pushnumber(L, dev+1);

  return 1;
}
开发者ID:andresy，项目名称:lua---pa，代码行数:17，代码来源:init.c


示例20: audio_pa_run

int audio_pa_run(audio_callback_fn_pt callback, double sample_rate, unsigned long chunk_size) {
    chunk = calloc(chunk_size, sizeof *chunk);
    if(chunk == NULL) MEMFAIL();

    PaError err = Pa_Initialize();
    if(err != paNoError) FAIL("Could not initialize PortAudio\n");

    PaStreamParameters inputParameters;
    inputParameters.device = Pa_GetDefaultInputDevice();
    inputParameters.channelCount = NUM_CHANNELS;
    inputParameters.sampleFormat = PA_SAMPLE_TYPE;
    inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultHighInputLatency ;
    inputParameters.hostApiSpecificStreamInfo = NULL;

    PaStream *stream = NULL;
    err = Pa_OpenStream(&stream,
                        &inputParameters,
                        0,
                        sample_rate,
                        chunk_size,
                        paClipOff,
                        0,
                        0);
    if(err != paNoError) FAIL("Could not open PortAudio input stream\n");

    err = Pa_StartStream(stream);
    if(err != paNoError) FAIL("Could not open audio input stream\n");

    /*
    printf("Gracefully terminated PortAudio\n");
    */

    int cb_err = 0;
    while(cb_err == 0){
        err = Pa_ReadStream(stream, chunk, chunk_size );
        if(err != paNoError) FAIL("Could not read audio chunk\n");
        cb_err = callback(chunk);
    }

    err = Pa_Terminate();
    if(err != paNoError) FAIL("Could not terminate PortAudio\n");

    free(chunk);
    return 0;
}
开发者ID:zbanks，项目名称:radiance，代码行数:45，代码来源:input_pa.c



注：本文中的Pa_GetDefaultInputDevice函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ Pa_GetDefaultOutputDevice函数代码示例发布时间：2022-05-30
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