C++ System::recordStart方法代码示例

//.........这里部分代码省略.........
    printf("Recording example.  Copyright (c) Firelight Technologies 2004-2011.\n");
    printf("===================================================================\n");
    printf("\n");
    printf("Press 'r' to record a 5 second segment of audio and write it to a wav file.\n");
    printf("Press 'p' to play the 5 second segment of audio.\n");
    printf("Press 'l' to turn looping on/off.\n");
    printf("Press 's' to stop recording and playback.\n");
    printf("Press 'w' to save the 5 second segment to a wav file.\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    /*
        Main loop.
    */
    do
    {
        static FMOD::Channel *channel = 0;
        static bool  looping    = false;
        bool         recording  = false;
        bool         playing    = false;
        unsigned int recordpos = 0;
        unsigned int playpos = 0;
        unsigned int length;

        if (kbhit())
        {
            key = getch();

            switch (key)
            {
                case 'r' :
                case 'R' :
                {
                    result = system->recordStart(recorddriver, sound, looping);
                    ERRCHECK(result);
                    break;
                }
                case 'p' :
                case 'P' :
                {
                    if (looping)
                    {
                        sound->setMode(FMOD_LOOP_NORMAL);
                    }
                    else
                    {
                        sound->setMode(FMOD_LOOP_OFF);
                    }
                    ERRCHECK(result);

                    result = system->playSound(FMOD_CHANNEL_REUSE, sound, false, &channel);
                    ERRCHECK(result);
                    break;
                }
                case 'l' :
                case 'L' :
                {
                    looping = !looping;
                    break;
                }
                case 's' :
                case 'S' :
                {
                    result = system->recordStop(recorddriver);
                    if (channel)
                    {

//.........这里部分代码省略.........
    result = system->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    system->getSoftwareFormat(&outputfreq, 0, 0, 0, 0, 0);
    ERRCHECK(result);

    /*
        Create a sound to record to.
    */
    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));

    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 1;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = OUTPUTRATE;
    exinfo.length           = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 5;
    
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    /*
        Start the interface
    */
    printf("=========================================================================\n");
    printf("Pitch detection example.  Copyright (c) Firelight Technologies 2004-2014.\n");
    printf("=========================================================================\n");
    printf("\n");
    printf("Record something through the selected recording device and FMOD will\n");
    printf("Determine the pitch.  Sustain the tone for at least a second to get an\n");
    printf("accurate reading.\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    result = system->recordStart(recorddriver, sound, true);
    ERRCHECK(result);
    
    Sleep(200);      /* Give it some time to record something */
    
    result = system->playSound(FMOD_CHANNEL_REUSE, sound, false, &channel);
    ERRCHECK(result);

    /* Dont hear what is being recorded otherwise it will feedback.  Spectrum analysis is done before volume scaling in the DSP chain */
    result = channel->setVolume(0);
    ERRCHECK(result);

    bin = 0;

    /*
        Main loop.
    */
    do
    {
        static float spectrum[SPECTRUMSIZE];
        float        dominanthz = 0;
        float        max;
        int          dominantnote = 0;
        float        binsize = BINSIZE;

        if (kbhit())
        {
            key = getch();
        }

        result = channel->getSpectrum(spectrum, SPECTRUMSIZE, 0, FMOD_DSP_FFT_WINDOW_TRIANGLE);
        ERRCHECK(result);

int FMOD_Main()
{
    FMOD::Channel *channel = NULL;
    unsigned int samplesRecorded = 0;
    unsigned int samplesPlayed = 0;
    bool dspEnabled = false;

    void *extraDriverData = NULL;
    Common_Init(&extraDriverData);

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

    unsigned int version = 0;
    result = system->getVersion(&version);
    ERRCHECK(result);

    if (version < FMOD_VERSION)
    {
        Common_Fatal("FMOD lib version %08x doesn't match header version %08x", version, FMOD_VERSION);
    }

    result = system->init(100, FMOD_INIT_NORMAL, extraDriverData);
    ERRCHECK(result);

    int numDrivers = 0;
    result = system->getRecordNumDrivers(NULL, &numDrivers);
    ERRCHECK(result);

    if (numDrivers == 0)
    {
        Common_Fatal("No recording devices found/plugged in!  Aborting.");
    }

    /*
        Determine latency in samples.
    */
    int nativeRate = 0;
    int nativeChannels = 0;
    result = system->getRecordDriverInfo(DEVICE_INDEX, NULL, 0, NULL, &nativeRate, NULL, &nativeChannels, NULL);
    ERRCHECK(result);

    unsigned int driftThreshold = (nativeRate * DRIFT_MS) / 1000;       /* The point where we start compensating for drift */
    unsigned int desiredLatency = (nativeRate * LATENCY_MS) / 1000;     /* User specified latency */
    unsigned int adjustedLatency = desiredLatency;                      /* User specified latency adjusted for driver update granularity */
    int actualLatency = desiredLatency;                                 /* Latency measured once playback begins (smoothened for jitter) */

    /*
        Create user sound to record into, then start recording.
    */
    FMOD_CREATESOUNDEXINFO exinfo = {0};
    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = nativeChannels;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = nativeRate;
    exinfo.length           = nativeRate * sizeof(short) * nativeChannels; /* 1 second buffer, size here doesn't change latency */
    
    FMOD::Sound *sound = NULL;
    result = system->createSound(0, FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    result = system->recordStart(DEVICE_INDEX, sound, true);
    ERRCHECK(result);

    unsigned int soundLength = 0;
    result = sound->getLength(&soundLength, FMOD_TIMEUNIT_PCM);
    ERRCHECK(result);

    /*
        Main loop
    */
    do
    {
        Common_Update();

        /*
            Add a DSP effect -- just for fun
        */
        if (Common_BtnPress(BTN_ACTION1))
        {
            FMOD_REVERB_PROPERTIES propOn = FMOD_PRESET_CONCERTHALL;
            FMOD_REVERB_PROPERTIES propOff = FMOD_PRESET_OFF;

            dspEnabled = !dspEnabled;

            result = system->setReverbProperties(0, dspEnabled ? &propOn : &propOff);
            ERRCHECK(result);
        }

        result = system->update();
        ERRCHECK(result);
       
        /*
            Determine how much has been recorded since we last checked
        */
        unsigned int recordPos = 0;
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        key = _getch();
        if (key == 27)
        {
            return 0;
        }
        recorddriver = key - '1';
    } while (recorddriver < 0 || recorddriver >= numdrivers);

    printf("\n");
  
    result = system->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));

    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 1;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = 44100;
    exinfo.length           = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 2;
    
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    printf("========================================================================\n");
    printf("Record to disk example.  Copyright (c) Firelight Technologies 2004-2014.\n");
    printf("========================================================================\n");
    printf("\n");
    printf("Press a key to start recording to record.wav\n");
    printf("\n");

    _getch();

    result = system->recordStart(recorddriver, sound, true);
    ERRCHECK(result);

    printf("Press 'Esc' to quit\n");
    printf("\n");

    fp = fopen("record.wav", "wb");
    if (!fp)
    {
        printf("ERROR : could not open record.wav for writing.\n");
        return 1;
    }

    /*
        Write out the wav header.  As we don't know the length yet it will be 0.
    */
    WriteWavHeader(fp, sound, datalength);

    result = sound->getLength(&soundlength, FMOD_TIMEUNIT_PCM);
    ERRCHECK(result);

    /*
        Main loop.
    */
    do
    {
        static unsigned int lastrecordpos = 0;
        unsigned int recordpos = 0;

        if (_kbhit())
        {
            key = _getch();
        }

int main(int argc, char *argv[])
{
    FMOD::System          *system  = 0;
    FMOD::Sound           *sound   = 0;
    FMOD_RESULT            result;
    FMOD_CREATESOUNDEXINFO exinfo;
    int                    key, recorddriver, numdrivers, count;
    unsigned int           version;    
    FILE                  *fp;
    unsigned int           datalength = 0, soundlength;
    bool                   iscoreaudio = false;

    /*
        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->setOutput(FMOD_OUTPUTTYPE_COREAUDIO);
    ERRCHECK(result);

    /*
        Enumerate record devices
    */

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

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

        result = system->getRecordDriverInfo(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");

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

    printf("\n");

    result = system->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));

    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 2;
    exinfo.defaultfrequency = 44100;
   
    if (iscoreaudio)
    {
        exinfo.format = FMOD_SOUND_FORMAT_PCMFLOAT;
        exinfo.length = exinfo.defaultfrequency * sizeof(float) * exinfo.numchannels * 2;
    }
    else
    {
        exinfo.format = FMOD_SOUND_FORMAT_PCM16;
        exinfo.length = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 2;
    }
 
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    printf("========================================================================\n");
    printf("Record to disk example.  Copyright (c) Firelight Technologies 2004-2014.\n");
    printf("========================================================================\n");
    printf("\n");
    printf("Press a key to start recording to record.wav\n");
    printf("\n");

    getch();

    result = system->recordStart(recorddriver, sound, true);
    ERRCHECK(result);

//.........这里部分代码省略.........

//.........这里部分代码省略.........
    result = system->setSoftwareFormat(OUTPUT_RATE, FMOD_SOUND_FORMAT_PCM16, 1, 0, FMOD_DSP_RESAMPLER_LINEAR);
    ERRCHECK(result);

    result = system->init(32, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    /*
        Create a sound to record to.
    */
    memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));

    exinfo.cbsize           = sizeof(FMOD_CREATESOUNDEXINFO);
    exinfo.numchannels      = 1;
    exinfo.format           = FMOD_SOUND_FORMAT_PCM16;
    exinfo.defaultfrequency = OUTPUT_RATE;
    exinfo.length           = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 5;
    
    result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_OPENUSER, &exinfo, &sound);
    ERRCHECK(result);

    /*
        Start the interface
    */
    printf("=========================================================================\n");
    printf("Pitch detection example.  Copyright (c) Firelight Technologies 2004-2011.\n");
    printf("=========================================================================\n");
    printf("\n");
    printf("Record something through the selected recording device and FMOD will\n");
    printf("Determine the pitch.  Sustain the tone for at least a second to get an\n");
    printf("accurate reading.\n");
    printf("Press 'Esc' to quit\n");
    printf("\n");

    result = system->recordStart(recorddriver, sound, true);
    ERRCHECK(result);
    
    Sleep(100);      /* Give it some time to record something */
    
    result = system->playSound(FMOD_CHANNEL_REUSE, sound, false, &channel);
    ERRCHECK(result);

    /* Dont hear what is being recorded otherwise it will feedback.  Spectrum analysis is done before volume scaling in the DSP chain */
    result = channel->setVolume(0);
    ERRCHECK(result);

    bin = 0;

    /*
        Main loop.
    */
    do
    {
        static float spectrum[SPECTRUM_SIZE];
        float       dominantHz = 0;
        float       max;
        int         dominantNote = 0;
        float       binSize = BIN_SIZE;
		bool		hasUpdated = false;
		char		windowTitle[sizeof("Pitch Detector: ---")] = "Pitch Detector: ---";
		int			noteIndex;
		double		noteDeviation;
		
        if (_kbhit())
        {
            key = _getch();
        }