C++ System::getNumDrivers方法代码示例

/**
 * Create a map where the keys are the names of the devices
 * and the values are the id (0-x where x = num of devices)
 */
map<string,int> AudioDevice::getDeviceMap()
{
    FMOD_RESULT result;
    FMOD::System* sys;
    result = FMOD::System_Create( &sys );
    FMODErrorCheck(result);

    int numDrivers;
    result = sys->getNumDrivers(&numDrivers);
    FMODErrorCheck(result);

    map<string,int> deviceMap;
    //app::console() << "===========================" << endl;
    //app::console() << "Listing audio devices:" << endl;
    for(int i=0; i<numDrivers; i++)
    {
        FMOD_GUID guid;
        char deviceName[256];
        sys->getDriverInfo(i, deviceName, 256, &guid);
        //app::console() << "(" << i << ") " << deviceName << endl;
        deviceMap[string(deviceName)] = i;
    }
    //app::console() << "===========================" << endl;
    FMODErrorCheck( sys->close() );
    FMODErrorCheck( sys->release() );
    return deviceMap;
}

int main(int argc, char *argv[])
{
    FMOD::System          *system  = 0;
    FMOD::Sound           *sound   = 0;
    FMOD::Channel         *channel = 0;
    FMOD_RESULT            result;
    FMOD_CREATESOUNDEXINFO exinfo;
    int                    key, driver, recorddriver, numdrivers, count;
    unsigned int           version;    

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
        return 0;
    }

    /* 
        System initialization
    */
    printf("---------------------------------------------------------\n");    
    printf("Select OUTPUT type\n");    
    printf("---------------------------------------------------------\n");    
    printf("1 :  OSS        - Open Sound System\n");
    printf("2 :  ALSA       - Advanced Linux Sound Architecture\n");
    printf("3 :  ESD        - Enlightenment Sound Daemon\n");
    printf("4 :  PULSEAUDIO - Pulse Audio Sound Server\n");
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    do
    {
        key = getch();
    } while (key != 27 && key < '1' && key > '5');
    
    switch (key)
    {
        case '1' :  result = system->setOutput(FMOD_OUTPUTTYPE_OSS);
                    break;
        case '2' :  result = system->setOutput(FMOD_OUTPUTTYPE_ALSA);
                    break;
        case '3' :  result = system->setOutput(FMOD_OUTPUTTYPE_ESD);
                    break;
        case '4' :  result = system->setOutput(FMOD_OUTPUTTYPE_PULSEAUDIO);
                    break;
        default  :  return 1; 
    }  
    ERRCHECK(result);
    
    /*
        Enumerate playback devices
    */

    result = system->getNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
    printf("Choose a PLAYBACK driver\n");
    printf("---------------------------------------------------------\n");    
    for (count=0; count < numdrivers; count++)
    {
        char name[256];

        result = system->getDriverInfo(count, name, 256, 0);
        ERRCHECK(result);

        printf("%d : %s\n", count + 1, name);
    }
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    do
    {
        key = getch();
        if (key == 27)
        {
            return 0;
        }
        driver = key - '1';
    } while (driver < 0 || driver >= numdrivers);

    result = system->setDriver(driver);
    ERRCHECK(result);

    /*
        Enumerate record devices
    */

    result = system->getRecordNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
//.........这里部分代码省略.........

int main(int argc, char *argv[])
{
    FMOD::System          *system  = 0;
    FMOD::Sound           *sound   = 0;
    FMOD::Channel         *channel = 0;
    FMOD_RESULT            result;
    FMOD_CREATESOUNDEXINFO exinfo;
    int                    key, driver, recorddriver, numdrivers, count, outputfreq, bin;
    unsigned int           version;    

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
        return 0;
    }

    /* 
        System initialization
    */
    printf("---------------------------------------------------------\n");    
    printf("Select OUTPUT type\n");    
    printf("---------------------------------------------------------\n");    
    printf("1 :  OSS        - Open Sound System\n");
    printf("2 :  ALSA       - Advanced Linux Sound Architecture\n");
    printf("3 :  ESD        - Enlightenment Sound Daemon\n");
    printf("4 :  PULSEAUDIO - Pulse Audio Sound Server\n");
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    do
    {
        key = getch();
    } while (key != 27 && key < '1' && key > '5');
    
    switch (key)
    {
        case '1' :  result = system->setOutput(FMOD_OUTPUTTYPE_OSS);
                    break;
        case '2' :  result = system->setOutput(FMOD_OUTPUTTYPE_ALSA);
                    break;
        case '3' :  result = system->setOutput(FMOD_OUTPUTTYPE_ESD);
                    break;
        case '4' :  result = system->setOutput(FMOD_OUTPUTTYPE_PULSEAUDIO);
                    break;                   
        default  :  return 1; 
    }  
    ERRCHECK(result);
    
    /*
        Enumerate playback devices
    */

    result = system->getNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
    printf("Choose a PLAYBACK driver\n");
    printf("---------------------------------------------------------\n");    
    for (count=0; count < numdrivers; count++)
    {
        char name[256];

        result = system->getDriverInfo(count, name, 256, 0);
        ERRCHECK(result);

        printf("%d : %s\n", count + 1, name);
    }
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    do
    {
        key = getch();
        if (key == 27)
        {
            return 0;
        }
        driver = key - '1';
    } while (driver < 0 || driver >= numdrivers);

    result = system->setDriver(driver);
    ERRCHECK(result);

    /*
        Enumerate record devices
    */

    result = system->getRecordNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
//.........这里部分代码省略.........

int main(int argc, char *argv[])
{
    FMOD::System    *system;
    FMOD::Sound     *sound1, *sound2, *sound3;
    FMOD::Channel   *channel1 = 0, *channel2 = 0, *channel3 = 0;
    FMOD_RESULT      result;
    int              key, numdrivers;
    bool             listenerflag = true;
    FMOD_VECTOR      listenerpos  = { 0.0f, 0.0f, -1.0f * DISTANCEFACTOR };
    unsigned int     version;
    FMOD_SPEAKERMODE speakermode;
    FMOD_CAPS        caps;
    char             name[256];

    printf("===============================================================\n");
    printf("3d Example.  Copyright (c) Firelight Technologies 2004-2015.\n");
    printf("===============================================================\n");
    printf("This example plays 2 3D sounds in hardware.  Optionally you can\n");
    printf("play a 2D hardware sound as well.\n");
    printf("===============================================================\n\n");

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);
    
    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
        return 0;
    }
    
    result = system->getNumDrivers(&numdrivers);
    ERRCHECK(result);

    if (numdrivers == 0)
    {
        result = system->setOutput(FMOD_OUTPUTTYPE_NOSOUND);
        ERRCHECK(result);
    }
    else
    {
        result = system->getDriverCaps(0, &caps, 0, &speakermode);
        ERRCHECK(result);

        result = system->setSpeakerMode(speakermode);       /* Set the user selected speaker mode. */
        ERRCHECK(result);

        if (caps & FMOD_CAPS_HARDWARE_EMULATED)             /* The user has the 'Acceleration' slider set to off!  This is really bad for latency!. */
        {                                                   /* You might want to warn the user about this. */
            result = system->setDSPBufferSize(1024, 10);
            ERRCHECK(result);
        }

        result = system->getDriverInfo(0, name, 256, 0);
        ERRCHECK(result);

        if (strstr(name, "SigmaTel"))   /* Sigmatel sound devices crackle for some reason if the format is PCM 16bit.  PCM floating point output seems to solve it. */
        {
            result = system->setSoftwareFormat(48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0,0, FMOD_DSP_RESAMPLER_LINEAR);
            ERRCHECK(result);
        }
    }

    result = system->init(100, FMOD_INIT_NORMAL, 0);
    if (result == FMOD_ERR_OUTPUT_CREATEBUFFER)         /* Ok, the speaker mode selected isn't supported by this soundcard.  Switch it back to stereo... */
    {
        result = system->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
        ERRCHECK(result);
            
        result = system->init(100, FMOD_INIT_NORMAL, 0);/* ... and re-init. */
        ERRCHECK(result);
    }

    
    /*
        Set the distance units. (meters/feet etc).
    */
    result = system->set3DSettings(1.0, DISTANCEFACTOR, 1.0f);
    ERRCHECK(result);

    /*
        Load some sounds
    */
    result = system->createSound("../media/drumloop.wav", FMOD_3D, 0, &sound1);
    ERRCHECK(result);
    result = sound1->set3DMinMaxDistance(0.5f * DISTANCEFACTOR, 5000.0f * DISTANCEFACTOR);
    ERRCHECK(result);
    result = sound1->setMode(FMOD_LOOP_NORMAL);
    ERRCHECK(result);

    result = system->createSound("../media/jaguar.wav", FMOD_3D, 0, &sound2);
    ERRCHECK(result);
    result = sound2->set3DMinMaxDistance(0.5f * DISTANCEFACTOR, 5000.0f * DISTANCEFACTOR);
    ERRCHECK(result);
    result = sound2->setMode(FMOD_LOOP_NORMAL);
//.........这里部分代码省略.........

int PitchDetector::DetectPitch()
{
    FMOD::System          *system  = 0;
    FMOD::Sound           *sound   = 0;
    FMOD::Channel         *channel = 0;
    FMOD_RESULT            result;
    FMOD_CREATESOUNDEXINFO exinfo;
    int                    key, driver, recorddriver, numdrivers, count, bin;
    unsigned int           version;    
	
    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
		return(-1);
    }

    /* 
        System initialization
    */
    printf("---------------------------------------------------------\n");    
    printf("Select OUTPUT type\n");    
    printf("---------------------------------------------------------\n");    
    printf("1 :  DirectSound\n");
    printf("2 :  Windows Multimedia WaveOut\n");
    printf("3 :  ASIO\n");
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    do
    {
        //key = _getch();
		key = '1'; //TODO: this uses the default io device rather than using user input
    } while (key != 27 && key < '1' && key > '5');
    
    switch (key)
    {
        case '1' :  result = system->setOutput(FMOD_OUTPUTTYPE_DSOUND);
                    break;
        case '2' :  result = system->setOutput(FMOD_OUTPUTTYPE_WINMM);
                    break;
        case '3' :  result = system->setOutput(FMOD_OUTPUTTYPE_ASIO);
                    break;
        default  :  return(0); 
    }  
    ERRCHECK(result);
    
    /*
        Enumerate playback devices
    */

    result = system->getNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
    printf("Choose a PLAYBACK driver\n");
    printf("---------------------------------------------------------\n");    
    for (count=0; count < numdrivers; count++)
    {
        char name[256];

        result = system->getDriverInfo(count, name, 256, 0);
        ERRCHECK(result);

        printf("%d : %s\n", count + 1, name);
    }
    printf("---------------------------------------------------------\n");
    printf("Press a corresponding number or ESC to quit\n");

    do
    {
        //key = _getch();
		key = '1'; //TODO: io devices
        if (key == 27)
        {
            return(0);
        }
        driver = key - '1';
    } while (driver < 0 || driver >= numdrivers);

    result = system->setDriver(driver);
    ERRCHECK(result);

    /*
        Enumerate record devices
    */

    result = system->getRecordNumDrivers(&numdrivers);
    ERRCHECK(result);

    printf("---------------------------------------------------------\n");    
    printf("Choose a RECORD driver\n");
//.........这里部分代码省略.........

int main()
{
	// ================================================================================================
	// Application-independent initialization
	// ================================================================================================

	FMOD::System *system;
	FMOD_RESULT result;
	unsigned int version;
	int numDrivers;
	FMOD_SPEAKERMODE speakerMode;
	FMOD_CAPS caps;
	char name[256];

	// Create FMOD interface object
	result = FMOD::System_Create(&system);
	FMODErrorCheck(result);

	// Check version
	result = system->getVersion(&version);
	FMODErrorCheck(result);

	if (version < FMOD_VERSION)
	{
		std::cout << "Error! You are using an old version of FMOD " << version << ". This program requires " << FMOD_VERSION << std::endl;
		return 0;
	}
	
	// Get number of sound cards
	result = system->getNumDrivers(&numDrivers);
	FMODErrorCheck(result);
	
	// No sound cards (disable sound)
	if (numDrivers == 0)
	{
		result = system->setOutput(FMOD_OUTPUTTYPE_NOSOUND);
		FMODErrorCheck(result);
	}

	// At least one sound card
	else
	{
		// Get the capabilities of the default (0) sound card
		result = system->getDriverCaps(0, &caps, 0, &speakerMode);
		FMODErrorCheck(result);
	
		// Set the speaker mode to match that in Control Panel
		result = system->setSpeakerMode(speakerMode);
		FMODErrorCheck(result);
	
		// Increase buffer size if user has Acceleration slider set to off
		if (caps & FMOD_CAPS_HARDWARE_EMULATED)
		{
			result = system->setDSPBufferSize(1024, 10);
			FMODErrorCheck(result);
		}
	
		// Get name of driver
		result = system->getDriverInfo(0, name, 256, 0);
		FMODErrorCheck(result);
	
		// SigmaTel sound devices crackle for some reason if the format is PCM 16-bit.
		// PCM floating point output seems to solve it.
		if (strstr(name, "SigmaTel"))
		{
			result = system->setSoftwareFormat(48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0, 0, FMOD_DSP_RESAMPLER_LINEAR);
			FMODErrorCheck(result);
		}
	}

	// Initialise FMOD
	result = system->init(100, FMOD_INIT_NORMAL, 0);

	// If the selected speaker mode isn't supported by this sound card, switch it back to stereo
	if (result == FMOD_ERR_OUTPUT_CREATEBUFFER)
	{
		result = system->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
		FMODErrorCheck(result);
	
		result = system->init(100, FMOD_INIT_NORMAL, 0);
	}
	FMODErrorCheck(result);

	// ================================================================================================
	// Application-specific code
	// ================================================================================================

	bool quit = false;
	bool fading = false;
	int fadeLength = 3000;
	int fadeStartTick;

	// Open music as a stream
	FMOD::Sound *song1, *song2, *effect;
	result = system->createStream("Song1.mp3", FMOD_DEFAULT, 0, &song1);
	FMODErrorCheck(result);
	result = system->createStream("Song2.mp3", FMOD_DEFAULT, 0, &song2);
	FMODErrorCheck(result);

	// Load sound effects into memory (not streaming)
//.........这里部分代码省略.........

int main(int argc, char *argv[])
{
    FMOD::System          *system  = 0;
    FMOD::Sound           *sound   = 0;
    FMOD::Channel         *channel = 0;
    FMOD::DSP             *dsp     = 0;
    FMOD_RESULT            result;
    FMOD_CREATESOUNDEXINFO exinfo;
    FMOD_SPEAKERMODE       speakermode;
    FMOD_CAPS              caps;
    int                    key, numdrivers;
    unsigned int           version;    
    unsigned int           datalength = 0, soundlength;
    char                   name[256];
    unsigned int           adjustedlatency;

    /*
        Create a System object and initialize.
    */
    result = FMOD::System_Create(&system);
    ERRCHECK(result);

    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        printf("Error!  You are using an old version of FMOD %08x.  This program requires %08x\n", version, FMOD_VERSION);
        return 0;
    }

    /* 
        System initialization (recommended startup sequence)
    */
    result = system->getNumDrivers(&numdrivers);
    ERRCHECK(result);

    if (numdrivers == 0)
    {
        result = system->setOutput(FMOD_OUTPUTTYPE_NOSOUND);
        ERRCHECK(result);
    }
    else
    {
        result = system->getDriverCaps(0, &caps, 0, &speakermode);
        ERRCHECK(result);

        result = system->setSpeakerMode(speakermode);       /* Set the user selected speaker mode. */
        ERRCHECK(result);

        if (caps & FMOD_CAPS_HARDWARE_EMULATED)             /* The user has the 'Acceleration' slider set to off!  This is really bad for latency!. */
        {                                                   /* You might want to warn the user about this. */
            result = system->setDSPBufferSize(1024, 10);
            ERRCHECK(result);
        }
#ifdef LOWLATENCY
        else
        {
            result = system->setDSPBufferSize(256, 4);
        }
#endif
        result = system->getDriverInfo(0, name, 256, 0);
        ERRCHECK(result);

        if (strstr(name, "SigmaTel"))   /* Sigmatel sound devices crackle for some reason if the format is PCM 16bit.  PCM floating point output seems to solve it. */
        {
            result = system->setSoftwareFormat(48000, FMOD_SOUND_FORMAT_PCMFLOAT, 0,0, FMOD_DSP_RESAMPLER_LINEAR);
            ERRCHECK(result);
        }
    }

    result = system->init(100, FMOD_INIT_NORMAL, 0);
    if (result == FMOD_ERR_OUTPUT_CREATEBUFFER)         /* Ok, the speaker mode selected isn't supported by this soundcard.  Switch it back to stereo... */
    {
        result = system->setSpeakerMode(FMOD_SPEAKERMODE_STEREO);
        ERRCHECK(result);
            
        result = system->init(100, FMOD_INIT_NORMAL, 0);/* ... and re-init. */
        ERRCHECK(result);
    }
    /* 
        System initialization complete (recommended startup sequence)
    */
 

    /*
        Create user sound to record into.  Set it to loop for playback.
    */
    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));
    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 1;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = RECORDRATE;
    exinfo.length           = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 5; /* 5 second buffer, doesnt really matter how big this is, but not too small of course. */
    
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    printf("========================================================================\n");
    printf("Record with realtime playback example.\n");
//.........这里部分代码省略.........