C++ System::release方法代码示例

	int Game::playEnvironment()
	{
			bool soundDone=false;
			FMOD::System* system;
			FMOD_RESULT result = FMOD::System_Create(&system);
			system->init(32, FMOD_INIT_NORMAL, NULL);
			FMOD::Sound* sound;
			
			result = system->createSound("Ocean.WAV",FMOD_LOOP_NORMAL,NULL, &sound);
			FMOD::Channel* channel = 0;
			bool pauseSound = false;


			channel->isPlaying(&pauseSound);

			result = system->playSound(FMOD_CHANNEL_FREE, sound,false, &channel);
			soundDone=true;


			while (soundDone!=true)
			{
			channel->setPaused(false);
			system->update();

			result = sound->release();
			result = system->close();
			result = system->release();
			}
			return 0;
	}

/**
 * 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;
}

void AudioVisualizerApp::shutdown()
{
	// properly shut down FMOD
	stopAudio();

	if( mFMODSystem )
		mFMODSystem->release();
}

void StepTwoApp::shutdown()
{
    // 4. Release resources!
    for(auto& sound : mSounds) {
		FMODErrorCheck(sound->release());
	}
	FMODErrorCheck( mSystem->close() );
	FMODErrorCheck( mSystem->release() );
}

    ~Audio()
    {
      // Invoke the AudioShutdown event. This lets the EventListener objects
      //  release so that they don't try to release after the FMOD Studio
      //  system is released below.
      EventData eventData;
      eventData["Audio"] = this;
      InvokeEvent("AudioShutdown", eventData);

      // Destroy the FMOD Studio system.
      FmodCall(system->release());
    }

	int Game::playSound(bool Sound)
	{

			bool soundDone= false;
			//declare variable for FMOD system object
			FMOD::System* system;
			//allocate memory for the FMOD system object
			FMOD_RESULT result = FMOD::System_Create(&system);
			//initialize the FMOD system object
			system->init(32, FMOD_INIT_NORMAL, NULL);
			//declare variable for the sound object
			FMOD::Sound* sound;
			//created sound object and specify the sound 
			
			result = system->createSound("Cathedral_of_Light.mp3",FMOD_LOOP_NORMAL,NULL, &sound);
			// play sound - 1st parameter can be combined flags (| separator)
			FMOD::Channel* channel = 0;

			//start sound

			bool pauseSound=false;

			channel->isPlaying(&pauseSound);

			result = system->playSound(FMOD_CHANNEL_FREE, sound, Sound, &channel);
			soundDone=true;


			while (soundDone!=true)
			{
			channel->setPaused(false);
			system->update();

			//}
			// release resources
			result = sound->release();
			result = system->close();
			result = system->release();
			}
			return 0;

	}

//.........这里部分代码省略.........
    */
    do
    {
        if (kbhit())
        {
            key = getch();

            switch (key)
            {
                case '1' :
                {
                    result = system->playSound(FMOD_CHANNEL_FREE, sound1, 0, &channel);
                    ERRCHECK(result);
                    break;
                }
                case '2' :
                {
                    result = system->playSound(FMOD_CHANNEL_FREE, sound2, 0, &channel);
                    ERRCHECK(result);
                    break;
                }
                case '3' :
                {
                    result = system->playSound(FMOD_CHANNEL_FREE, sound3, 0, &channel);
                    ERRCHECK(result);
                    break;
                }
            }
        }

        system->update();

        {
            unsigned int ms = 0;
            unsigned int lenms = 0;
            bool         playing = 0;
            bool         paused = 0;
            int          channelsplaying = 0;

            if (channel)
            {
                FMOD::Sound *currentsound = 0;

                result = channel->isPlaying(&playing);
                if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE) && (result != FMOD_ERR_CHANNEL_STOLEN))
                {
                    ERRCHECK(result);
                }

                result = channel->getPaused(&paused);
                if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE) && (result != FMOD_ERR_CHANNEL_STOLEN))
                {
                    ERRCHECK(result);
                }

                result = channel->getPosition(&ms, FMOD_TIMEUNIT_MS);
                if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE) && (result != FMOD_ERR_CHANNEL_STOLEN))
                {
                    ERRCHECK(result);
                }
               
                channel->getCurrentSound(&currentsound);
                if (currentsound)
                {
                    result = currentsound->getLength(&lenms, FMOD_TIMEUNIT_MS);
                    if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE) && (result != FMOD_ERR_CHANNEL_STOLEN))
                    {
                        ERRCHECK(result);
                    }
                }
            }

            system->getChannelsPlaying(&channelsplaying);

            printf("\rTime %02d:%02d:%02d/%02d:%02d:%02d : %s : Channels Playing %2d", ms / 1000 / 60, ms / 1000 % 60, ms / 10 % 100, lenms / 1000 / 60, lenms / 1000 % 60, lenms / 10 % 100, paused ? "Paused " : playing ? "Playing" : "Stopped", channelsplaying);
            fflush(stdout);
        }

        Sleep(10);

    } while (key != 27);

    printf("\n");

    /*
        Shut down
    */
    result = sound1->release();
    ERRCHECK(result);
    result = sound2->release();
    ERRCHECK(result);
    result = sound3->release();
    ERRCHECK(result);
    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    return 0;
}

//.........这里部分代码省略.........
    */
    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->init(1, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    result = system->createStream("../media/wave.mp3", FMOD_OPENONLY | FMOD_ACCURATETIME, 0, &sound);
    ERRCHECK(result);

    printf("==========================================================================\n");
    printf("Offline Decoding Example.  Copyright (c) Firelight Technologies 2004-2011.\n");
    printf("==========================================================================\n");
    printf("\n");
    printf("This program will open wave.mp3 and decode it into wave.raw using the\n");
    printf("Sound::readData function.\n");
    printf("\n");

    /*
        Decode the sound and write it to a .raw file.
    */
    {
        void *data;
        unsigned int length = 0, read;
        unsigned int bytesread;
        FILE *outfp;

        #define CHUNKSIZE 4096

        result = sound->getLength(&length, FMOD_TIMEUNIT_PCMBYTES);
        ERRCHECK(result);

        outfp = fopen("output.raw", "wb");
        if (!outfp)
        {
            printf("Error!  Could not open output.raw output file.\n");
            return 0;
        }

        data = malloc(CHUNKSIZE);
        if (!data)
        {
            printf("Error!  Failed to allocate %d bytes.\n", CHUNKSIZE);
            return 0;
        }

        bytesread = 0;
        do
        {
            result = sound->readData((char *)data, CHUNKSIZE, &read);

            fwrite((char *)data, read, 1, outfp);
                       
            bytesread += read;

            printf("writing %d bytes of %d to output.raw\r", bytesread, length);
        }
        while (result == FMOD_OK && read == CHUNKSIZE);

        /*
            Loop terminates when either 
            1. the read function returns an error.  (ie FMOD_ERR_FILE_EOF etc).
            2. the amount requested was different to the amount returned. (somehow got an EOF without the file error, maybe a non stream file format like mod/s3m/xm/it/midi).

            If 'bytesread' is bigger than 'length' then it just means that FMOD miscalculated the size, 
            but this will not usually happen if FMOD_ACCURATETIME is used.  (this will give the correct length for VBR formats)
        */

        printf("\n");

        if (outfp)
        {
            fclose(outfp);
        }
    }
        

    printf("\n");

    /*
        Shut down
    */
    result = sound->release();
    ERRCHECK(result);
    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    return 0;
}

int main(int argc, char *argv[])
{
    FMOD::System     *system;
    FMOD::Sound      *sound;
    FMOD::Channel    *channel = 0;
    FMOD_RESULT       result;
    int               key;
    unsigned int      version;
    HANDLE            threadhandle;

    InitializeCriticalSection(&gCrit);
    
	threadhandle = (HANDLE)_beginthreadex(NULL, 0, ProcessQueue, 0, 0, 0);
    if (!threadhandle)
    {
        printf("Failed to create file thread.\n");
        return 0;
    }
    
    /*
        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->init(1, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    result = system->setStreamBufferSize(32768, FMOD_TIMEUNIT_RAWBYTES);
    ERRCHECK(result);
    
    result = system->setFileSystem(myopen, myclose, myread, myseek, myasyncread, myasynccancel, 2048);
    ERRCHECK(result);

    printf("====================================================================\n");
    printf("Stream IO Example.  Copyright (c) Firelight Technologies 2004-2014.\n");
    printf("====================================================================\n");
    printf("\n");
    printf("\n");
    printf("====================== CALLING CREATESOUND ON MP3 =======================\n");
    
    result = system->createStream("../media/wave.mp3", FMOD_SOFTWARE | FMOD_LOOP_NORMAL | FMOD_2D | FMOD_IGNORETAGS, 0, &sound);
    ERRCHECK(result);

    printf("====================== CALLING PLAYSOUND ON MP3 =======================\n");

    result = system->playSound(FMOD_CHANNEL_FREE, sound, false, &channel);
    ERRCHECK(result);

    /*
        Main loop.
    */
    do
    {
        if (sound)
        {
            FMOD_OPENSTATE openstate;
            bool starving;

            sound->getOpenState(&openstate, 0, &starving, 0);
            
            if (starving)
            {
                printf("Starving\n");
                result = channel->setMute(true);
            }
            else
            {
                result = channel->setMute(false);
                ERRCHECK(result);
            }
        }

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

            switch (key)
            {
                case ' ' :
                {
                    result = sound->release();
                    if (result == FMOD_OK)
                    {
                        sound = 0;
                        printf("Released sound.\n");
                    }
                    break;
                }
            }
//.........这里部分代码省略.........

//.........这里部分代码省略.........

    result = system->init(1, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    result = system->setFileSystem(myopen, myclose, myread, myseek, 0, 0, 2048);
    ERRCHECK(result);

    result = system->createStream("../media/wave.mp3", FMOD_HARDWARE | FMOD_LOOP_NORMAL | FMOD_2D, 0, &sound);
    ERRCHECK(result);

    printf("========================================================================\n");
    printf("File Callbacks Example.  Copyright (c) Firelight Technologies 2004-2015.\n");
    printf("========================================================================\n");
    printf("\n");
    printf("Press space to pause, Esc to quit\n");
    printf("\n");

    /*
        Play the sound.
    */

    result = system->playSound(FMOD_CHANNEL_FREE, sound, false, &channel);
    ERRCHECK(result);

    /*
        Main loop.
    */
    do
    {
        if (kbhit())
        {
            key = getch();

            switch (key)
            {
                case ' ' :
                {
                    bool paused;
                    channel->getPaused(&paused);
                    channel->setPaused(!paused);
                    break;
                }
            }
        }

        system->update();

        if (channel)
        {
            unsigned int ms;
            unsigned int lenms;
            bool         playing;
            bool         paused;

            channel->isPlaying(&playing);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            result = channel->getPaused(&paused);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            result = channel->getPosition(&ms, FMOD_TIMEUNIT_MS);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            result = sound->getLength(&lenms, FMOD_TIMEUNIT_MS);
            if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE))
            {
                ERRCHECK(result);
            }

            printf("Time %02d:%02d:%02d/%02d:%02d:%02d : %s\r", ms / 1000 / 60, ms / 1000 % 60, ms / 10 % 100, lenms / 1000 / 60, lenms / 1000 % 60, lenms / 10 % 100, paused ? "Paused " : playing ? "Playing" : "Stopped");
            fflush(stdout);
        }

        Sleep(10);

    } while (key != 27);

    printf("\n");

    /*
        Shut down
    */
    result = sound->release();
    ERRCHECK(result);
    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    return 0;
}

//.........这里部分代码省略.........
        Main loop.
    */
    do
    {
        if (kbhit())
        {
            key = getch();

            switch (key)
            {
                case 'a' : 
                case 'A' : 
                {
                    static bool mute = true;

                    groupA->setMute(mute);

                    mute = !mute;
                    break;
                }
                case 'b' : 
                case 'B' : 
                {
                    static bool mute = true;

                    groupB->setMute(mute);

                    mute = !mute;
                    break;
                }
                case 'c' : 
                case 'C' : 
                {
                    static bool mute = true;

                    masterGroup->setMute(mute);

                    mute = !mute;
                    break;
                }
            }
        }

        system->update();

        {
            int  channelsplaying = 0;

            system->getChannelsPlaying(&channelsplaying);

            printf("Channels Playing %2d\r", channelsplaying);
        }

        Sleep(10);

    } while (key != 27);

    printf("\n");

    /*
        A little fade out. (over 2 seconds)
    */
    printf("Goodbye!\n");
    {
        float pitch = 1.0f;
        float vol = 1.0f;

        for (count = 0; count < 200; count++)
        {
            masterGroup->setPitch(pitch);
            masterGroup->setVolume(vol);

            vol   -= (1.0f / 200.0f);
            pitch -= (0.5f / 200.0f);

            Sleep(10);
        }
    }

    /*
        Shut down
    */
    for (count = 0; count < 6; count++)
    {
        result = sound[count]->release();
        ERRCHECK(result);
    }

    result = groupA->release();
    ERRCHECK(result);
    result = groupB->release();
    ERRCHECK(result);

    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    return 0;
}

int main(int argc, char *argv[])
{
    FMOD::System           *system;
    FMOD::Sound            *sound;
    FMOD::Channel          *channel = 0;
    FMOD_RESULT             result;
    FMOD_MODE               mode = FMOD_2D | FMOD_HARDWARE | FMOD_CREATESTREAM;
    unsigned int version;

    if (argc != 3) {
        std::cout << "unpacker.exe fsbPath outdirPath" << std::endl;
        return 1;
    }

    auto fsbPath = std::string(argv[1]);
    auto outPath = std::string(argv[2]);

    //fsbPath = "LoL_SFX_ziggs.fsb";
    //fsbPath = "LoL_SFX_karma_base.fsb";
    //fsbPath = "LoL_SFX_fiddlesticks.fsb";


    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->setOutput(FMOD_OUTPUTTYPE_WAVWRITER);
    result = system->init(1, FMOD_INIT_NORMAL, 0);
    ERRCHECK(result);

    auto codecHandle = registerLeagueCodec(system, 50);

    int numsubsounds;
    FMOD::Sound *subSound = nullptr;
    char name[256];
    int soundNum = 0;

    try {
        result = system->createSound(fsbPath.c_str(), mode, nullptr, &sound);
        ERRCHECK(result);

        result = sound->getNumSubSounds(&numsubsounds);
        ERRCHECK(result);
        soundNum = 0;


        sound->getSubSound(0, &subSound);
        subSound->getName(name, 256);
        subSound->release();

        makePath(outPath.c_str());
        sound->release();
        system->close();
        system->release();

        std::set<std::string> writtenFiles;

        FMOD::Channel* channel;
        bool playing;
        for (int sndIdx = 0; sndIdx < numsubsounds; sndIdx++) {
            ERRCHECK(FMOD::System_Create(&system));
            ERRCHECK(system->getVersion(&version));
            system->setOutput(FMOD_OUTPUTTYPE_WAVWRITER_NRT);
            auto outFilePath = outPath + "\\" + std::string(name) + ".wav";
            if (writtenFiles.find(outFilePath) != writtenFiles.end()) {
                int cnt = 1;
                char arr[80];
                do {
                    _itoa_s(cnt, arr, 10);
                    outFilePath = outPath + "\\" + std::string(name) + "_" + std::string(arr) + ".wav";
                    cnt++;
                } while (writtenFiles.find(outFilePath) != writtenFiles.end());
            }
            writtenFiles.insert(outFilePath);
            ERRCHECK(system->init(1, FMOD_INIT_STREAM_FROM_UPDATE, (void*)outFilePath.c_str()));
            auto codecHandle = registerLeagueCodec(system, 50);
            system->createSound(fsbPath.c_str(), mode, nullptr, &sound);
            sound->getSubSound(sndIdx, &subSound);
            system->playSound(FMOD_CHANNEL_FREE, subSound, false, &channel);
            do {
                
                system->update();
                channel->isPlaying(&playing);
            } while (playing);
            subSound->release();


            if (sndIdx < numsubsounds - 1) {
                sound->getSubSound(sndIdx+1, &subSound);
                subSound->getName(name, 256);
                subSound->release();
                outFilePath = outPath + "\\" + std::string(name) + ".wav";
//.........这里部分代码省略.........

int FMOD_Main()
{
    FMOD::System        *system           = 0;
    FMOD_RESULT          result;
    unsigned int         version;
    void                *extradriverdata  = 0;
    unsigned int         pluginhandle;
    InspectorState       state            = PLUGIN_SELECTOR;
    PluginSelectorState  pluginselector   = { 0 };
    ParameterViewerState parameterviewer  = { 0 };

    Common_Init(&extradriverdata);

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

    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(32, FMOD_INIT_NORMAL, extradriverdata);
    ERRCHECK(result);

    result = system->getNumPlugins(FMOD_PLUGINTYPE_DSP, &pluginselector.numplugins);
    ERRCHECK(result);

    pluginselector.system = system;

    do
    {
        Common_Update();

        if (state == PLUGIN_SELECTOR)
        {
            state = pluginSelectorDo(&pluginselector);

            if (state == PARAMETER_VIEWER)
            {
                result = pluginselector.system->getPluginHandle(FMOD_PLUGINTYPE_DSP, pluginselector.cursor, &pluginhandle);
                ERRCHECK(result);

                result = pluginselector.system->createDSPByPlugin(pluginhandle, &parameterviewer.dsp);
                ERRCHECK(result);

                FMOD_RESULT result = parameterviewer.dsp->getNumParameters(&parameterviewer.numparams);
                ERRCHECK(result);

                parameterviewer.scroll = 0;
            }
        }
        else if (state == PARAMETER_VIEWER)
        {
            state = parameterViewerDo(&parameterviewer);

            if (state == PLUGIN_SELECTOR)
            {
                result = parameterviewer.dsp->release();
                ERRCHECK(result);

                parameterviewer.dsp = 0;
            }
        }

        result = system->update();
        ERRCHECK(result);

        Common_Sleep(INTERFACE_UPDATETIME - 1);
    } while (!Common_BtnPress(BTN_QUIT));

    if (parameterviewer.dsp)
    {
        result = parameterviewer.dsp->release();
        ERRCHECK(result);
    }

    result = system->close();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    Common_Close();

    return 0;
}

//.........这里部分代码省略.........
        static unsigned int minRecordDelta = (unsigned int)-1;
        if (recordDelta && (recordDelta < minRecordDelta))
        {
            minRecordDelta = recordDelta; /* Smallest driver granularity seen so far */
            adjustedLatency = (recordDelta <= desiredLatency) ? desiredLatency : recordDelta; /* Adjust our latency if driver granularity is high */
        }
        
        /*
            Delay playback until our desired latency is reached.
        */
        if (!channel && samplesRecorded >= adjustedLatency)
        {
            result = system->playSound(sound, 0, false, &channel);
            ERRCHECK(result);
        }

        if (channel)
        {
            /*
                Stop playback if recording stops.
            */
            bool isRecording = false;
            result = system->isRecording(DEVICE_INDEX, &isRecording);
            if (result != FMOD_ERR_RECORD_DISCONNECTED)
            {
                ERRCHECK(result);
            }

            if (!isRecording)
            {
                result = channel->setPaused(true);
                ERRCHECK(result);
            }

            /*
                Determine how much has been played since we last checked.
            */
            unsigned int playPos = 0;
            result = channel->getPosition(&playPos, FMOD_TIMEUNIT_PCM);
            ERRCHECK(result);

            static unsigned int lastPlayPos = 0;
            unsigned int playDelta = (playPos >= lastPlayPos) ? (playPos - lastPlayPos) : (playPos + soundLength - lastPlayPos);
            lastPlayPos = playPos;
            samplesPlayed += playDelta;
            
            /*
                Compensate for any drift.
            */
            int latency = samplesRecorded - samplesPlayed;
            actualLatency = (0.97f * actualLatency) + (0.03f * latency);

            int playbackRate = nativeRate;
            if (actualLatency < (adjustedLatency - driftThreshold)) 
            {
                /* Play position is catching up to the record position, slow playback down by 2% */
                playbackRate = nativeRate - (nativeRate / 50); 
            }
            else if (actualLatency > (adjustedLatency + driftThreshold))
            {
                /* Play position is falling behind the record position, speed playback up by 2% */
                playbackRate = nativeRate + (nativeRate / 50);
            }

            channel->setFrequency((float)playbackRate);
            ERRCHECK(result);
        }

        Common_Draw("==================================================");
        Common_Draw("Record Example.");
        Common_Draw("Copyright (c) Firelight Technologies 2004-2015.");
        Common_Draw("==================================================");
        Common_Draw("");
        Common_Draw("Adjust LATENCY define to compensate for stuttering");
        Common_Draw("Current value is %dms", LATENCY_MS);
        Common_Draw("");
        Common_Draw("Press %s to %s DSP effect", Common_BtnStr(BTN_ACTION1), dspEnabled ? "disable" : "enable");
        Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
        Common_Draw("");
        Common_Draw("Adjusted latency: %4d (%dms)", adjustedLatency, adjustedLatency * 1000 / nativeRate);
        Common_Draw("Actual latency:   %4d (%dms)", actualLatency, actualLatency * 1000 / nativeRate);
        Common_Draw("");
        Common_Draw("Recorded: %5d (%ds)", samplesRecorded, samplesRecorded / nativeRate);
        Common_Draw("Played:   %5d (%ds)", samplesPlayed, samplesPlayed / nativeRate);

        Common_Sleep(10);
    } while (!Common_BtnPress(BTN_QUIT));

    /*
        Shut down
    */
    result = sound->release();
    ERRCHECK(result);
    result = system->release();
    ERRCHECK(result);

    Common_Close();

    return 0;
}

//.........这里部分代码省略.........

    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();
        }

        system->getRecordPosition(recorddriver, &recordpos);
        ERRCHECK(result);

        if (recordpos != lastrecordpos)        
        {
            void *ptr1, *ptr2;
            int blocklength;
            unsigned int len1, len2;
            
            blocklength = (int)recordpos - (int)lastrecordpos;
            if (blocklength < 0)
            {
                blocklength += soundlength;
            }

            /*
                Lock the sound to get access to the raw data.
            */
            sound->lock(lastrecordpos * exinfo.numchannels * 2, blocklength * exinfo.numchannels * 2, &ptr1, &ptr2, &len1, &len2);   /* * exinfo.numchannels * 2 = stereo 16bit.  1 sample = 4 bytes. */

            /*
                Write it to disk.
            */
            if (ptr1 && len1)
            {
                datalength += fwrite(ptr1, 1, len1, fp);
            }
            if (ptr2 && len2)
            {
                datalength += fwrite(ptr2, 1, len2, fp);
            }

            /*
                Unlock the sound to allow FMOD to use it again.
            */
            sound->unlock(ptr1, ptr2, len1, len2);
        }

        lastrecordpos = recordpos;

        printf("%-23s. Record buffer pos = %6d : Record time = %02d:%02d\r", (timeGetTime() / 500) & 1 ? "Recording to record.wav" : "", recordpos, datalength / exinfo.defaultfrequency / exinfo.numchannels / 2 / 60, (datalength / exinfo.defaultfrequency / exinfo.numchannels / 2) % 60);

        system->update();

        Sleep(10);

    } while (key != 27);

    printf("\n");

    /*
        Write back the wav header now that we know its length.
    */
    WriteWavHeader(fp, sound, datalength);

    fclose(fp);

    /*
        Shut down
    */
    result = sound->release();
    ERRCHECK(result);

    result = system->release();
    ERRCHECK(result);

    return 0;
}