C++ Pa_GetErrorText函数代码示例

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本文整理汇总了C++中Pa_GetErrorText函数的典型用法代码示例。如果您正苦于以下问题：C++ Pa_GetErrorText函数的具体用法？C++ Pa_GetErrorText怎么用？C++ Pa_GetErrorText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_GetErrorText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: PAOpenStream

static int PAOpenStream( aout_instance_t *p_aout )
{
    aout_sys_t *p_sys = p_aout->output.p_sys;
    const PaHostErrorInfo* paLastHostErrorInfo = Pa_GetLastHostErrorInfo();
    PaStreamParameters paStreamParameters;
    vlc_value_t val;
    int i_channels, i_err;
    uint32_t i_channel_mask;

    if( var_Get( p_aout, "audio-device", &val ) < 0 )
    {
        return VLC_EGENERIC;
    }

    if( val.i_int == AOUT_VAR_5_1 )
    {
        p_aout->output.output.i_physical_channels
            = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
              | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
              | AOUT_CHAN_LFE;
    }
    else if( val.i_int == AOUT_VAR_3F2R )
    {
        p_aout->output.output.i_physical_channels
            = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
            | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
    }
    else if( val.i_int == AOUT_VAR_2F2R )
    {
        p_aout->output.output.i_physical_channels
            = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
            | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
    }
    else if( val.i_int == AOUT_VAR_MONO )
    {
        p_aout->output.output.i_physical_channels = AOUT_CHAN_CENTER;
    }
    else
    {
        p_aout->output.output.i_physical_channels
            = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
    }

    i_channels = aout_FormatNbChannels( &p_aout->output.output );
    msg_Dbg( p_aout, "nb_channels requested = %d", i_channels );
    i_channel_mask = p_aout->output.output.i_physical_channels;

    /* Calculate the frame size in bytes */
    p_sys->i_sample_size = 4 * i_channels;
    p_aout->output.i_nb_samples = FRAME_SIZE;
    aout_FormatPrepare( &p_aout->output.output );
    aout_VolumeSoftInit( p_aout );

    /* Check for channel reordering */
    p_aout->output.p_sys->i_channel_mask = i_channel_mask;
    p_aout->output.p_sys->i_bits_per_sample = 32; /* forced to paFloat32 */
    p_aout->output.p_sys->i_channels = i_channels;

    p_aout->output.p_sys->b_chan_reorder =
        aout_CheckChannelReorder( NULL, pi_channels_out,
                                  i_channel_mask, i_channels,
                                  p_aout->output.p_sys->pi_chan_table );

    if( p_aout->output.p_sys->b_chan_reorder )
    {
        msg_Dbg( p_aout, "channel reordering needed" );
    }

    paStreamParameters.device = p_sys->i_device_id;
    paStreamParameters.channelCount = i_channels;
    paStreamParameters.sampleFormat = paFloat32;
    paStreamParameters.suggestedLatency =
        p_sys->deviceInfo->defaultLowOutputLatency;
    paStreamParameters.hostApiSpecificStreamInfo = NULL;

    i_err = Pa_OpenStream( &p_sys->p_stream, NULL /* no input */,
                &paStreamParameters, (double)p_aout->output.output.i_rate,
                FRAME_SIZE, paClipOff, paCallback, p_sys );
    if( i_err != paNoError )
    {
        msg_Err( p_aout, "Pa_OpenStream returns %d : %s", i_err,
                 Pa_GetErrorText( i_err ) );
        if( i_err == paUnanticipatedHostError )
        {
            msg_Err( p_aout, "type %d code %ld : %s",
                     paLastHostErrorInfo->hostApiType,
                     paLastHostErrorInfo->errorCode,
                     paLastHostErrorInfo->errorText );
        }
        p_sys->p_stream = 0;
        return VLC_EGENERIC;
    }

    i_err = Pa_StartStream( p_sys->p_stream );
    if( i_err != paNoError )
    {
        msg_Err( p_aout, "Pa_StartStream() failed" );
        Pa_CloseStream( p_sys->p_stream );
        return VLC_EGENERIC;
    }
//.........这里部分代码省略.........

开发者ID:Kafay，项目名称:vlc，代码行数:101，代码来源:portaudio.c

示例2: main


//.........这里部分代码省略.........
    outputParameters.hostApiSpecificStreamInfo = NULL;

    err = Pa_OpenStream(
              &stream,
              NULL,         /* no input */
              &outputParameters,
              SAMPLE_RATE,
              FRAMES_PER_BUFFER,
              paClipOff,    /* we won't output out of range samples so don't bother clipping them */
              patestCallback,
              &data );    
    if( err != paNoError ) goto error;
    err = Pa_StartStream( stream );
    if( err != paNoError ) goto error;

    printf("Establishing load conditions...\n" );

    /* Determine number of sines required to get to 50% */
    do
    {
        Pa_Sleep( 100 );

        load = Pa_GetStreamCpuLoad( stream );
        printf("sineCount = %d, CPU load = %f\n", data.sineCount, load );
		
		if( load < 0.3 )
		{
			data.sineCount += 10;
    }
		else if( load < 0.4 )
		{
			data.sineCount += 2;
		}
		else
		{
			data.sineCount += 1;
		}
		
    }
    while( load < 0.5 && data.sineCount < (MAX_SINES-1));

    safeSineCount = data.sineCount;

    /* Calculate target stress value then ramp up to that level*/
    stressedSineCount = (int) (2.0 * data.sineCount * MAX_LOAD );
    if( stressedSineCount > MAX_SINES )
        stressedSineCount = MAX_SINES;
    for( ; data.sineCount < stressedSineCount; data.sineCount+=4 )
    {
        Pa_Sleep( 100 );
        load = Pa_GetStreamCpuLoad( stream );
        printf("STRESSING: sineCount = %d, CPU load = %f\n", data.sineCount, load );
    }
    
    printf("Counting underflows for 5 seconds.\n");
    data.countUnderflows = 1;
    Pa_Sleep( 5000 );

    stressedUnderflowCount = data.outputUnderflowCount;

    data.countUnderflows = 0;
    data.sineCount = safeSineCount;

    printf("Resuming safe load...\n");
    Pa_Sleep( 1500 );
    data.outputUnderflowCount = 0;
    Pa_Sleep( 1500 );
    load = Pa_GetStreamCpuLoad( stream );
    printf("sineCount = %d, CPU load = %f\n", data.sineCount, load );

    printf("Counting underflows for 5 seconds.\n");
    data.countUnderflows = 1;
    Pa_Sleep( 5000 );

    safeUnderflowCount = data.outputUnderflowCount;
    
    printf("Stop stream.\n");
    err = Pa_StopStream( stream );
    if( err != paNoError ) goto error;
    
    err = Pa_CloseStream( stream );
    if( err != paNoError ) goto error;
    
    Pa_Terminate();

    if( stressedUnderflowCount == 0 )
        printf("Test failed, no output underflows detected under stress.\n");
    else if( safeUnderflowCount != 0 )
        printf("Test failed, %d unexpected underflows detected under safe load.\n", safeUnderflowCount);
    else
        printf("Test passed, %d expected output underflows detected under stress, 0 unexpected underflows detected under safe load.\n", stressedUnderflowCount );

    return err;
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 err;
}

开发者ID:Excalibur201010，项目名称:sharpsdr，代码行数:101，代码来源:patest_out_underflow.c

示例3: main

int main(void)
{
    PaError    err;
    paTestData data = { 0 };
    long       totalFrames;
    long       numBytes;
    long       i;
    printf("patest_record.c\n"); fflush(stdout);

/* Set up test data structure and sample array. */
    data.frameIndex = 0;
    data.samplesPerFrame = 2;
    data.maxFrameIndex = totalFrames = NUM_SECONDS*SAMPLE_RATE;

    printf("totalFrames = %d\n", totalFrames ); fflush(stdout);
    data.numSamples = totalFrames * data.samplesPerFrame;

    numBytes = data.numSamples * sizeof(SAMPLE);
    data.recordedSamples = (SAMPLE *) malloc( numBytes );
    if( data.recordedSamples == NULL )
    {
        printf("Could not allocate record array.\n");
        exit(1);
    }
    for( i=0; i<data.numSamples; i++ ) data.recordedSamples[i] = 0;

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

/* Record and playback multiple times. */
    for( i=0; i<2; i++ )
    {
        err = TestRecording( &data );
        if( err != paNoError ) goto error;

        err = TestPlayback( &data );
        if( err != paNoError ) goto error;
    }

/* Clean up. */
    err = Pa_CloseStream( data.inputStream );
    if( err != paNoError ) goto error;

    err = Pa_CloseStream( data.outputStream );
    if( err != paNoError ) goto error;

    if( err != paNoError ) goto error;

    free( data.recordedSamples );
    Pa_Terminate();
    
    printf("Test complete.\n"); fflush(stdout);
    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 ) );
    if( err == paHostError )
    {
        fprintf( stderr, "Host Error number: %d\n", Pa_GetHostError() );
    }
    return -1;
}

开发者ID:andreipaga，项目名称:audacity，代码行数:65，代码来源:debug_record_reuse.c

示例4: OpenStream

PaError OpenStream(PaStream **mStream, PaDeviceIndex Device, double Rate, void* Sound, double &dLatency, PaStreamCallback Callback)
{
	PaStreamParameters outputParams;

	outputParams.device = Device;
	outputParams.channelCount = 2;
	outputParams.sampleFormat = paFloat32;

	if (!Configuration::GetConfigf("UseHighLatency", "Audio"))
		outputParams.suggestedLatency = Pa_GetDeviceInfo(outputParams.device)->defaultLowOutputLatency;
	else
		outputParams.suggestedLatency = Pa_GetDeviceInfo(outputParams.device)->defaultHighOutputLatency;


#ifndef WIN32

	outputParams.hostApiSpecificStreamInfo = NULL;

#else
	PaWasapiStreamInfo StreamInfo;
	PaWinDirectSoundStreamInfo DSStreamInfo;
	if (UseWasapi)
	{
		outputParams.hostApiSpecificStreamInfo = &StreamInfo;
		StreamInfo.hostApiType = paWASAPI;
		StreamInfo.size = sizeof(PaWasapiStreamInfo);
		StreamInfo.version = 1;
		if (!Configuration::GetConfigf("WasapiDontUseExclusiveMode", "Audio"))
		{
			StreamInfo.threadPriority = eThreadPriorityProAudio;
			StreamInfo.flags = paWinWasapiExclusive;
		}
		else
		{
			StreamInfo.threadPriority = eThreadPriorityAudio;
			StreamInfo.flags = 0;
		}

		StreamInfo.hostProcessorOutput = NULL;
		StreamInfo.hostProcessorInput = NULL;
	}
	else
	{
		outputParams.hostApiSpecificStreamInfo = &DSStreamInfo;

		DSStreamInfo.size = sizeof(PaWinDirectSoundStreamInfo);
		DSStreamInfo.hostApiType = paDirectSound;
		DSStreamInfo.version = 2;
		DSStreamInfo.flags = 0;
	}
#endif

	dLatency = outputParams.suggestedLatency;

	// fire up portaudio
	PaError Err = Pa_OpenStream(mStream, NULL, &outputParams, Rate, 0, paClipOff, Callback, (void*)Sound);

	if (Err)
	{
		Log::Logf("%ls\n", Utility::Widen(Pa_GetErrorText(Err)).c_str());
		Log::Logf("Device Selected %d\n", Device);
	}
#ifdef LINUX
	else
	{
		Log::Logf("Audio: Enabling real time scheduling\n");
		PaAlsa_EnableRealtimeScheduling( mStream, true );
	}	
#endif

	return Err;
}

开发者ID:Sp3ct3r2k11，项目名称:raindrop，代码行数:72，代码来源:Audio.cpp

示例5: main


//.........这里部分代码省略.........
	{  //else, it's a button press
		buttonPress = FALSE; //acknowledged, reset flag
		//printf("button pressed\n"); //fflush(stdout);					 			
	}
	
	
	// Measure maximum peak amplitude. 
	// we could indicate over-driving/clipping the audio
	// or AGC it
	max = 0;
	average = 0.0;
	for( i=0; i<numSamples; i++ )
	{
		val = data.recordedSamples[i];
		if( val < 0 ) val = -val; // ABS 
		if( val > max )
		{
			max = val;
		}
		average += val;
	}
	
	average = average / (double)numSamples;
	
	//printf("sample max amplitude = "PRINTF_S_FORMAT"\n", max );
	//printf("sample average = %lf\n", average );
	
	
	// Write recorded data to a file. 
#if WRITE_TO_FILE
	{   // the file size should be 5 minutes of 8K samples * 2
	    // the entire ring buffer is recorded without regard to the 
	    // read/write pointers. Make sense of the file by editing it in
	    // Audacity
	    // todo: write the file in correct time order using rd/wr pointers
		FILE  *fid;				
		fid = fopen("recorded.raw", "wb");
		if( fid == NULL )
		{
			//printf("Could not open file.");
		}
		else
		{
			fwrite( data.recordedSamples, NUM_CHANNELS * sizeof(SAMPLE), 
				   totalFrames, fid );
			fclose( fid );
			//printf("Wrote data to 'recorded.raw'\n");
		}
	}
#endif
	

// initial state after recording
// all future state changes from within state machine
    if(buttonHold == FALSE)
    {
        // ******************************************
		doState(S_REWIND_10, (void*) NULL);
		// ******************************************	   
    }
    else
    {
        // ******************************************
		doState(S_REWIND_PLAYBACK, (void*) NULL);	
		// ******************************************    
    }
// |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||	
// |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||	
    while (1)
    {
        // advance state in the state machine
        // ******************************************
		doState(currentSTATE, (void*) NULL);    
		// ******************************************	
		Pa_Sleep(100);
		if(terminate != FALSE)
		 goto done;
		 
    }
// |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||	
// |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
	
	
done:
	Pa_Terminate();
	if( data.recordedSamples )       // Sure it is NULL or valid. 
		free( data.recordedSamples );
	if( err != paNoError )
	{
		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 ) );
		
		fatalError();
		
		err = 1;          // Always return 0 or 1, but no other return codes. 
	}
	return err;
}

开发者ID:bobh，项目名称:ILooperPiZero，代码行数:101，代码来源:LoopRecord.c

示例6: main

int main(void)
{
    char  pad[256];
    PortAudioStream *stream;
    PaError err;
    const PaDeviceInfo *pdi;
    paTestData data = {0};
    printf("PortAudio Test: output sine wave on each channel.\n" );

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

    pdi = Pa_GetDeviceInfo( OUTPUT_DEVICE );
    data.numChannels = pdi->maxOutputChannels;
    if( data.numChannels > MAX_CHANNELS ) data.numChannels = MAX_CHANNELS;
    printf("Number of Channels = %d\n", data.numChannels );
    data.amplitude = 1.0;
    
    err = Pa_OpenStream(
              &stream,
              paNoDevice, /* default input device */
              0,              /* no input */
              paFloat32,  /* 32 bit floating point input */
              NULL,
              OUTPUT_DEVICE,
              data.numChannels,
              paFloat32,  /* 32 bit floating point output */
              NULL,
              SAMPLE_RATE,
              FRAMES_PER_BUFFER,  /* frames per buffer */
              0,    /* number of buffers, if zero then use default minimum */
              paClipOff,      /* we won't output out of range samples so don't bother clipping them */
              patestCallback,
              &data );
    if( err != paNoError ) goto error;

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

    do
    {
        printf("Current amplitude = %f\n", data.amplitude );
        printf("Enter new amplitude or 'q' to quit.\n");
        fflush(stdout);
        gets( pad );
        if( pad[0] != 'q' )
        {
        // I tried to use atof but it seems to be broken on Mac OS X 10.1
            float amp;
            sscanf( pad, "%f", &amp );
            data.amplitude = amp;
        }
    } while( pad[0] != 'q' );

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

    Pa_CloseStream( stream );
    Pa_Terminate();
    printf("Test finished.\n");
    return err;
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 err;
}

开发者ID:ruthmagnus，项目名称:audacity，代码行数:68，代码来源:debug_sine_amp.c

示例7: Init

	s32 Init()
	{
		started=false;
		stream=NULL;

		ReadSettings();

		PaError err = Pa_Initialize();
		if( err != paNoError )
		{
			fprintf(stderr,"* SPU2-X: PortAudio error: %s\n", Pa_GetErrorText( err ) );
			return -1;
		}
		started=true;

		int deviceIndex = -1;

		fprintf(stderr,"* SPU2-X: Enumerating PortAudio devices:");
		for(int i=0;i<Pa_GetDeviceCount();i++)
		{
			const PaDeviceInfo * info = Pa_GetDeviceInfo(i);

			const PaHostApiInfo * apiinfo = Pa_GetHostApiInfo(info->hostApi);

			fprintf(stderr," *** Device %d: '%s' (%s)", i, info->name, apiinfo->name);

			if(apiinfo->type == m_ApiId)
			{
				static wchar_t buffer [1000];
				mbstowcs(buffer,info->name,1000);
				buffer[999]=0;

				if(m_Device == buffer)
				{
					deviceIndex = i;
					fprintf(stderr," (selected)");
				}

			}
			fprintf(stderr,"\n");
		}

		if(deviceIndex<0 && m_ApiId>=0)
		{
			for(int i=0;i<Pa_GetHostApiCount();i++)
			{
				const PaHostApiInfo * apiinfo = Pa_GetHostApiInfo(i);
				if(apiinfo->type == m_ApiId)
				{
					deviceIndex = apiinfo->defaultOutputDevice;
				}
			}
		}

		if(deviceIndex>=0)
		{
			void* infoPtr = NULL;

#ifdef __WIN32__
			PaWasapiStreamInfo info = {
				sizeof(PaWasapiStreamInfo),
				paWASAPI,
				1,
				paWinWasapiExclusive
			};

			if((m_ApiId == paWASAPI) && m_WasapiExclusiveMode)
			{
				// Pass it the Exclusive mode enable flag
				infoPtr = &info;
			}
#endif

			PaStreamParameters outParams = {

			//	PaDeviceIndex device;
			//	int channelCount;
			//	PaSampleFormat sampleFormat;
			//	PaTime suggestedLatency;
			//	void *hostApiSpecificStreamInfo;
				deviceIndex,
				2,
				paInt32,
				0.2f,
				infoPtr
			};

			err = Pa_OpenStream(&stream,
				NULL, &outParams, SampleRate,
				SndOutPacketSize,
				paNoFlag,
#ifndef __LINUX__
				PaCallback,
#else
				PaLinuxCallback,
#endif
				NULL);
		}
		else
		{
//.........这里部分代码省略.........

开发者ID:madnessw，项目名称:thesnow，代码行数:101，代码来源:SndOut_Portaudio.cpp

示例8: main

int main(void)
{
    PaStream *stream;
    PaStreamParameters outputParameters;
    PaError err;
    paTestData data;
    int i;    
    printf("Play different tone sine waves that alternate between left and right channel.\n");
    printf("The low tone should be on the left channel.\n");
    
    /* initialise sinusoidal wavetable */
    for( i=0; i<TABLE_SIZE; i++ )
    {
        data.sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
    }
    data.left_phase = data.right_phase = 0;
    data.currentBalance = 0.0;
    data.targetBalance = 0.0;

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

    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 = paFloat32; /* 32 bit floating point output */
    outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
    outputParameters.hostApiSpecificStreamInfo = NULL;

    err = Pa_OpenStream( &stream,
                         NULL,                  /* No input. */
                         &outputParameters,     /* As above. */
                         SAMPLE_RATE,
                         FRAMES_PER_BUFFER,
                         paClipOff,      /* we won't output out of range samples so don't bother clipping them */
                         patestCallback,
                         &data );
    if( err != paNoError ) goto error;
    
    err = Pa_StartStream( stream );
    if( err != paNoError ) goto error;
    
    printf("Play for several seconds.\n");
    for( i=0; i<4; i++ )
	{
		printf("Hear low sound on left side.\n");
		data.targetBalance = 0.01;
        Pa_Sleep( 1000 );
		
		printf("Hear high sound on right side.\n");
		data.targetBalance = 0.99;
        Pa_Sleep( 1000 ); 
	}

    err = Pa_StopStream( stream );
    if( err != paNoError ) goto error;
    err = Pa_CloseStream( stream );
    if( err != paNoError ) goto error;
    Pa_Terminate();
    printf("Test finished.\n");
    return err;
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 err;
}

开发者ID:AntiMoron，项目名称:portaudio，代码行数:71，代码来源:patest_leftright.c

示例9: main

int main(void)
{
    PaStreamParameters outputParameters;
    PaStream *stream;
    PaError err;
    paTestData data;
#ifdef __APPLE__
    PaMacCoreStreamInfo macInfo;
    const SInt32 channelMap[4] = { -1, -1, 0, 1 };
#endif
    int i;


    printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
    printf("Output will be mapped to channels 2 and 3 instead of 0 and 1.\n");

    /* initialise sinusoidal wavetable */
    for( i=0; i<TABLE_SIZE; i++ )
    {
        data.sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. );
    }
    data.left_phase = data.right_phase = 0;

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

    /** setup host specific info */
#ifdef __APPLE__
    PaMacCore_SetupStreamInfo( &macInfo, paMacCorePlayNice );
    PaMacCore_SetupChannelMap( &macInfo, channelMap, 4 );

    for( i=0; i<4; ++i )
        printf( "channel %d name: %s\n", i, PaMacCore_GetChannelName( Pa_GetDefaultOutputDevice(), i, false ) );
#else
    printf( "Channel mapping not supported on this platform. Reverting to normal sine test.\n" );
#endif

    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 = paFloat32; /* 32 bit floating point output */
    outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
#ifdef __APPLE__
    outputParameters.hostApiSpecificStreamInfo = &macInfo;
#else
    outputParameters.hostApiSpecificStreamInfo = NULL;
#endif

    err = Pa_OpenStream(
              &stream,
              NULL, /* no input */
              &outputParameters,
              SAMPLE_RATE,
              FRAMES_PER_BUFFER,
              paClipOff,      /* we won't output out of range samples so don't bother clipping them */
              patestCallback,
              &data );
    if( err != paNoError ) goto error;

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

    printf("Play for %d seconds.\n", NUM_SECONDS );
    Pa_Sleep( NUM_SECONDS * 1000 );

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

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

    Pa_Terminate();
    printf("Test finished.\n");

    return err;
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 err;
}

开发者ID:NewCell，项目名称:Call-Text-v1，代码行数:85，代码来源:patest_sine_channelmaps.c

示例10: pa_open_capture

static ALCenum pa_open_capture(ALCdevice *device, const ALCchar *deviceName)
{
    PaStreamParameters inParams;
    ALuint frame_size;
    pa_data *data;
    PaError err;

    if(!deviceName)
        deviceName = pa_device;
    else if(strcmp(deviceName, pa_device) != 0)
        return ALC_INVALID_VALUE;

    data = (pa_data*)calloc(1, sizeof(pa_data));
    if(data == NULL)
        return ALC_OUT_OF_MEMORY;

    frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
    data->ring = CreateRingBuffer(frame_size, device->UpdateSize*device->NumUpdates);
    if(data->ring == NULL)
        goto error;

    inParams.device = -1;
    if(!ConfigValueInt("port", "capture", &inParams.device) || inParams.device < 0)
        inParams.device = Pa_GetDefaultOutputDevice();
    inParams.suggestedLatency = 0.0f;
    inParams.hostApiSpecificStreamInfo = NULL;

    switch(device->FmtType)
    {
        case DevFmtByte:
            inParams.sampleFormat = paInt8;
            break;
        case DevFmtUByte:
            inParams.sampleFormat = paUInt8;
            break;
        case DevFmtShort:
            inParams.sampleFormat = paInt16;
            break;
        case DevFmtFloat:
            inParams.sampleFormat = paFloat32;
            break;
        case DevFmtUShort:
            ERR("Unsigned short samples not supported\n");
            goto error;
    }
    inParams.channelCount = ChannelsFromDevFmt(device->FmtChans);

    err = Pa_OpenStream(&data->stream, &inParams, NULL, device->Frequency,
                        paFramesPerBufferUnspecified, paNoFlag, pa_capture_cb, device);
    if(err != paNoError)
    {
        ERR("Pa_OpenStream() returned an error: %s\n", Pa_GetErrorText(err));
        goto error;
    }

    device->szDeviceName = strdup(deviceName);

    device->ExtraData = data;
    return ALC_NO_ERROR;

error:
    DestroyRingBuffer(data->ring);
    free(data);
    return ALC_INVALID_VALUE;
}

开发者ID:GlenDC，项目名称:love-native-android，代码行数:65，代码来源:portaudio.c

示例11: main


//.........这里部分代码省略.........

    while( Pa_StreamActive( stream ) )
    {
        Pa_Sleep(1000);
        printf("index = %d\n", data.frameIndex ); fflush(stdout);
    }

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

    /* Measure maximum peak amplitude. */
    max = 0;
    average = 0;
    for( i=0; i<numSamples; i++ )
    {
        val = data.recordedSamples[i];
        if( val < 0 ) val = -val; /* ABS */
        if( val > max )
        {
            max = val;
        }
        average += val;
    }
    
    average = average / numSamples;

    if( PA_SAMPLE_TYPE == paFloat32 )   /* This should be done at compile-time with "#if" ?? */
    {                                   /* MIPS-compiler warns at the int-version below.     */
        printf("sample max amplitude = %f\n", max );
        printf("sample average = %f\n", average );
    }
    else
    {
        printf("sample max amplitude = %d\n", max );    /* <-- This IS compiled anyhow. */
        printf("sample average = %d\n", average );
    }
    
    /* Write recorded data to a file. */
#if 0
    {
        FILE  *fid;
        fid = fopen("recorded.raw", "wb");
        if( fid == NULL )
        {
            printf("Could not open file.");
        }
        else
        {
            fwrite( data.recordedSamples, NUM_CHANNELS * sizeof(SAMPLE), totalFrames, fid );
            fclose( fid );
            printf("Wrote data to 'recorded.raw'\n");
        }
    }
#endif

    /* Playback recorded data.  -------------------------------------------- */
    data.frameIndex = 0;
    printf("Begin playback.\n"); fflush(stdout);
    err = Pa_OpenStream(
              &stream,
              paNoDevice,
              0,               /* NO input */
              PA_SAMPLE_TYPE,
              NULL,
              Pa_GetDefaultOutputDeviceID(),
              NUM_CHANNELS,
              PA_SAMPLE_TYPE,
              NULL,
              SAMPLE_RATE,
              FRAMES_PER_BUFFER,            /* frames per buffer */
              0,               /* number of buffers, if zero then use default minimum */
              paClipOff,       /* we won't output out of range samples so don't bother clipping them */
              playCallback,
              &data );
    if( err != paNoError ) goto error;

    if( stream )
    {
        err = Pa_StartStream( stream );
        if( err != paNoError ) goto error;
        printf("Waiting for playback to finish.\n"); fflush(stdout);

        while( Pa_StreamActive( stream ) ) Pa_Sleep(100);

        err = Pa_CloseStream( stream );
        if( err != paNoError ) goto error;
        printf("Done.\n"); fflush(stdout);
    }
    free( data.recordedSamples );

    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:vinay，项目名称:Transcend，代码行数:101，代码来源:patest_record.c

示例12: pa_open_playback

static ALCenum pa_open_playback(ALCdevice *device, const ALCchar *deviceName)
{
    PaStreamParameters outParams;
    pa_data *data;
    PaError err;

    if(!deviceName)
        deviceName = pa_device;
    else if(strcmp(deviceName, pa_device) != 0)
        return ALC_INVALID_VALUE;

    data = (pa_data*)calloc(1, sizeof(pa_data));
    data->update_size = device->UpdateSize;

    device->ExtraData = data;

    outParams.device = -1;
    if(!ConfigValueInt("port", "device", &outParams.device) || outParams.device < 0)
        outParams.device = Pa_GetDefaultOutputDevice();
    outParams.suggestedLatency = (device->UpdateSize*device->NumUpdates) /
                                 (float)device->Frequency;
    outParams.hostApiSpecificStreamInfo = NULL;

    switch(device->FmtType)
    {
        case DevFmtByte:
            outParams.sampleFormat = paInt8;
            break;
        case DevFmtUByte:
            outParams.sampleFormat = paUInt8;
            break;
        case DevFmtUShort:
            device->FmtType = DevFmtShort;
            /* fall-through */
        case DevFmtShort:
            outParams.sampleFormat = paInt16;
            break;
        case DevFmtFloat:
            outParams.sampleFormat = paFloat32;
            break;
    }
    outParams.channelCount = ((device->FmtChans == DevFmtMono) ? 1 : 2);

    SetDefaultChannelOrder(device);

    err = Pa_OpenStream(&data->stream, NULL, &outParams, device->Frequency,
                        device->UpdateSize, paNoFlag, pa_callback, device);
    if(err != paNoError)
    {
        ERR("Pa_OpenStream() returned an error: %s\n", Pa_GetErrorText(err));
        device->ExtraData = NULL;
        free(data);
        return ALC_INVALID_VALUE;
    }

    device->szDeviceName = strdup(deviceName);

    if((ALuint)outParams.channelCount != ChannelsFromDevFmt(device->FmtChans))
    {
        if(outParams.channelCount != 1 && outParams.channelCount != 2)
        {
            ERR("Unhandled channel count: %u\n", outParams.channelCount);
            Pa_CloseStream(data->stream);
            device->ExtraData = NULL;
            free(data);
            return ALC_INVALID_VALUE;
        }
        if((device->Flags&DEVICE_CHANNELS_REQUEST))
            ERR("Failed to set %s, got %u channels instead\n", DevFmtChannelsString(device->FmtChans), outParams.channelCount);
        device->Flags &= ~DEVICE_CHANNELS_REQUEST;
        device->FmtChans = ((outParams.channelCount==1) ? DevFmtMono : DevFmtStereo);
    }

    return ALC_NO_ERROR;
}

开发者ID:GlenDC，项目名称:love-native-android，代码行数:75，代码来源:portaudio.c

示例13: Java_com_github_rjeschke_jpa_JPA_paGetErrorText

JNIEXPORT jstring JNICALL Java_com_github_rjeschke_jpa_JPA_paGetErrorText(JNIEnv *env, jclass clazz, jint error)
{
    return makeString(env, (char*)Pa_GetErrorText((PaError)error));
}

开发者ID:rjeschke，项目名称:jpa，代码行数:4，代码来源:jpa.c

示例14: PORTAUDIOThread

/*****************************************************************************
 * PORTAUDIOThread: all interactions with libportaudio.a are handled
 * in this single thread.  Otherwise libportaudio.a is _not_ happy :-(
 *****************************************************************************/
static void* PORTAUDIOThread( vlc_object_t *p_this )
{
    pa_thread_t *pa_thread = (pa_thread_t*)p_this;
    aout_instance_t *p_aout;
    aout_sys_t *p_sys;
    int i_err;
    int canc = vlc_savecancel ();

    while( vlc_object_alive (pa_thread) )
    {
        /* Wait for start of stream */
        vlc_mutex_lock( &pa_thread->lock_signal );
        if( !pa_thread->b_signal )
            vlc_cond_wait( &pa_thread->signal, &pa_thread->lock_signal );
        vlc_mutex_unlock( &pa_thread->lock_signal );
        pa_thread->b_signal = false;

        p_aout = pa_thread->p_aout;
        p_sys = p_aout->output.p_sys;

        if( PAOpenDevice( p_aout ) != VLC_SUCCESS )
        {
            msg_Err( p_aout, "cannot open portaudio device" );
            pa_thread->b_error = true;
        }

        if( !pa_thread->b_error && PAOpenStream( p_aout ) != VLC_SUCCESS )
        {
            msg_Err( p_aout, "cannot open portaudio device" );
            pa_thread->b_error = true;

            i_err = Pa_Terminate();
            if( i_err != paNoError )
            {
                msg_Err( p_aout, "Pa_Terminate: %d (%s)", i_err,
                         Pa_GetErrorText( i_err ) );
            }
        }

        /* Tell the main thread that we are ready */
        vlc_mutex_lock( &pa_thread->lock_wait );
        pa_thread->b_wait = true;
        vlc_cond_signal( &pa_thread->wait );
        vlc_mutex_unlock( &pa_thread->lock_wait );

        /* Wait for end of stream */
        vlc_mutex_lock( &pa_thread->lock_signal );
        if( !pa_thread->b_signal )
            vlc_cond_wait( &pa_thread->signal, &pa_thread->lock_signal );
        vlc_mutex_unlock( &pa_thread->lock_signal );
        pa_thread->b_signal = false;

        if( pa_thread->b_error ) continue;

        i_err = Pa_StopStream( p_sys->p_stream );
        if( i_err != paNoError )
        {
            msg_Err( p_aout, "Pa_StopStream: %d (%s)", i_err,
                     Pa_GetErrorText( i_err ) );
        }
        i_err = Pa_CloseStream( p_sys->p_stream );
        if( i_err != paNoError )
        {
            msg_Err( p_aout, "Pa_CloseStream: %d (%s)", i_err,
                     Pa_GetErrorText( i_err ) );
        }
        i_err = Pa_Terminate();
        if( i_err != paNoError )
        {
            msg_Err( p_aout, "Pa_Terminate: %d (%s)", i_err,
                     Pa_GetErrorText( i_err ) );
        }

        /* Tell the main thread that we are ready */
        vlc_mutex_lock( &pa_thread->lock_wait );
        pa_thread->b_wait = true;
        vlc_cond_signal( &pa_thread->wait );
        vlc_mutex_unlock( &pa_thread->lock_wait );
    }
    vlc_restorecancel (canc);
    return NULL;
}

开发者ID:Kafay，项目名称:vlc，代码行数:86，代码来源:portaudio.c

示例15: main

int main(int argc, char *argv[])
{
    QString         cfg_file;
    std::string     conf;
    std::string     style;
    bool            clierr = false;
    bool            edit_conf = false;
    int             return_code;

    QApplication app(argc, argv);
    QCoreApplication::setOrganizationName(GQRX_ORG_NAME);
    QCoreApplication::setOrganizationDomain(GQRX_ORG_DOMAIN);
    QCoreApplication::setApplicationName(GQRX_APP_NAME);
    QCoreApplication::setApplicationVersion(VERSION);

    // setup controlport via environment variables
    // see http://lists.gnu.org/archive/html/discuss-gnuradio/2013-05/msg00270.html
    // Note: tried using gr::prefs().save() but that doesn't have effect until the next time
    if (qputenv("GR_CONF_CONTROLPORT_ON", "False"))
        qDebug() << "Controlport disabled";
    else
        qDebug() << "Failed to disable controlport";

    // setup the program options
    po::options_description desc("Command line options");
    desc.add_options()
            ("help,h", "This help message")
            ("style,s", po::value<std::string>(&style), "Use the give style (fusion, windows)")
            ("list,l", "List existing configurations")
            ("conf,c", po::value<std::string>(&conf), "Start with this config file")
            ("edit,e", "Edit the config file before using it")
            ("reset,r", "Reset configuration file")
    ;

    po::variables_map vm;
    try
    {
        po::store(po::parse_command_line(argc, argv, desc), vm);
    }
    catch(const boost::program_options::invalid_command_line_syntax& ex)
    {
        /* happens if e.g. -c without file name */
        clierr = true;
    }
    catch(const boost::program_options::unknown_option& ex)
    {
        /* happens if e.g. -c without file name */
        clierr = true;
    }

    po::notify(vm);

    // print the help message
    if (vm.count("help") || clierr)
    {
        std::cout << "Gqrx software defined radio receiver " << VERSION << std::endl;
        std::cout << desc << std::endl;
        return 1;
    }

    if (vm.count("style"))
        QApplication::setStyle(QString::fromStdString(style));

    if (vm.count("list"))
    {
        list_conf();
        return 0;
    }

    // check whether audio backend is functional
#ifdef WITH_PORTAUDIO
    PaError     err = Pa_Initialize();
    if (err != paNoError)
    {
        QString message = QString("Portaudio error: %1").arg(Pa_GetErrorText(err));
        qCritical() << message;
        QMessageBox::critical(0, "Audio Error", message,
                              QMessageBox::Abort, QMessageBox::NoButton);
        return 1;
    }
#endif

#ifdef WITH_PULSEAUDIO
    int         error = 0;
    pa_simple  *test_sink;
    pa_sample_spec ss;

    ss.format = PA_SAMPLE_FLOAT32LE;
    ss.rate = 48000;
    ss.channels = 2;
    test_sink =  pa_simple_new(NULL, "Gqrx Test", PA_STREAM_PLAYBACK, NULL,
                               "Test stream", &ss, NULL, NULL, &error);
    if (!test_sink)
    {
        QString message = QString("Pulseaudio error: %1").arg(pa_strerror(error));
        qCritical() << message;
        QMessageBox::critical(0, "Audio Error", message,
                              QMessageBox::Abort, QMessageBox::NoButton);
        return 1;
    }
//.........这里部分代码省略.........

开发者ID:Cat-Ion，项目名称:gqrx，代码行数:101，代码来源:main.cpp

示例16: main

int main(int argc, char** argv)
{
    struct sockaddr_in server;
    int chan;
    PaStream *stream;
    PaStreamParameters output_parameters;
    PaError err;

    voice = NULL;
    srand(time(NULL));
    atexit(at_exit);
    set_signal_handlers();
    init();

    if (argc != 4)
        return usage(argv[0]);

    set_output_parameters(&output_parameters, atoi(argv[3]));

    /* connect to server */
    sock = udp_create_socket(&server, sizeof(server), inet_addr(argv[1]), atoi(argv[2]), WAIT_FOR_RECEIVE);
    if (sock < 0)
        error_and_exit("Cannot create socket", __FILE__, __LINE__);
    
    /* create speech thingies */
    si.w          = malloc(sizeof(cst_wave) * si.channel_count);
    si.pos        = malloc(sizeof(long) * si.channel_count);
    si.done       = malloc(sizeof(int) * si.channel_count);
    si.cur_delay  = malloc(sizeof(double) * si.channel_count);
    si.rate_delay = malloc(sizeof(double) * si.channel_count);
    for (chan = 0; chan < si.channel_count; ++chan) {
        si.w[chan] = NULL;
        next_tweet(&server, chan);
    }

    err = Pa_OpenStream(&stream, NULL, &output_parameters,
            44100., 0, paNoFlag, say_text_callback, &si);
    if (paNoError != err) {
        fprintf(stderr, "Cannot open stream: %s\n", Pa_GetErrorText(err));
        exit(-1);
    }
/*        Pa_OpenDefaultStream(&stream, 0, si.channel_count, paInt16,
            si.w->sample_rate, 0, say_text_callback, &si); */
    err = Pa_StartStream(stream);
    if (paNoError != err) {
        fprintf(stderr, "Cannot start stream: %s\n", Pa_GetErrorText(err));
        exit(-1);
    }
    
    while (1)
    {
        usleep(100);
        for (chan = 0; chan < si.channel_count; ++chan) 
        {
            if (si.done[chan])
                next_tweet(&server, chan);
        }
    }
    //Pa_StopStream(stream);

    return 0;
}

开发者ID:vrld，项目名称:twat，代码行数:62，代码来源:twatc.c

示例17: main


//.........这里部分代码省略.........
        }
        
        if( i == Pa_GetDefaultOutputDevice() )
        {
            printf( (defaultDisplayed ? "," : "[") );
            printf( " Default Output" );
            defaultDisplayed = 1;
        }
        else if( i == Pa_GetHostApiInfo( deviceInfo->hostApi )->defaultOutputDevice )
        {
            const PaHostApiInfo

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C++ Pa_GetErrorText函数代码示例

示例1: PAOpenStream

示例2: main

示例3: main

示例4: OpenStream

示例5: main

示例6: main

示例7: Init

示例8: main

示例9: main

示例10: pa_open_capture

示例11: main

示例12: pa_open_playback

示例13: Java_com_github_rjeschke_jpa_JPA_paGetErrorText

示例14: PORTAUDIOThread

示例15: main

示例16: main

示例17: main

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