C++ Sound::getDefaults方法代码示例

DWORD FmodSoundEngine::PlayMusic(int sound_id, CHANNEL Ichannel, bool loop, float volume)
{
	if(Ichannel<0||Ichannel>=maxChannel)
	{
		Ichannel = GetNewChannel();
		if(Ichannel<0)
			return NULL;
	}
	FMOD::Sound *sound = (FMOD::Sound*)playMusic[sound_id];
	FMOD::Channel **channel = (FMOD::Channel**)this->channel;
	nowChannel = max(nowChannel,Ichannel+1);
	if(loop)
	{
		result = sound->setMode(FMOD_LOOP_NORMAL);
		//ERRCHECK(result);
	}
	if(Ichannel==0){
		float freq;
		sound->getDefaults(&freq,NULL);
		music_sampleRate = freq;
	}
	result = system->playSound(sound, NULL, true, &channel[Ichannel]);
	//ERRCHECK(result);
	volumeDes[Ichannel] = volume*defaultVolume;
	result = channel[Ichannel]->setVolume(volumeDes[Ichannel]);
	//ERRCHECK(result);
	SetPosition(Ichannel, sound_id, 0);
	//ERRCHECK(result);
	result = channel[Ichannel]->setPaused(false);
	//ERRCHECK(result);

	if(Ichannel==0)
		Update(0);

	return (DWORD)sound;
}

	SPtr<Resource> FMODImporter::import(const Path& filePath, SPtr<const ImportOptions> importOptions)
	{
		WString extension = filePath.getWExtension();
		StringUtil::toLowerCase(extension);

		AudioFileInfo info;

		FMOD::Sound* sound;
		String pathStr = filePath.toString();
		if(gFMODAudio()._getFMOD()->createSound(pathStr.c_str(), FMOD_CREATESAMPLE, nullptr, &sound) != FMOD_OK)
		{
			LOGERR("Failed importing audio file: " + pathStr);
			return nullptr;
		}

		FMOD_SOUND_FORMAT format;
		INT32 numChannels = 0;
		INT32 numBits = 0;

		sound->getFormat(nullptr, &format, &numChannels, &numBits);

		if(format != FMOD_SOUND_FORMAT_PCM8 && format != FMOD_SOUND_FORMAT_PCM16 && format != FMOD_SOUND_FORMAT_PCM24 
			&& format != FMOD_SOUND_FORMAT_PCM32 && format != FMOD_SOUND_FORMAT_PCMFLOAT)
		{
			LOGERR("Failed importing audio file, invalid imported format: " + pathStr);
			return nullptr;
		}

		float frequency = 0.0f;
		sound->getDefaults(&frequency, nullptr);

		UINT32 size;
		sound->getLength(&size, FMOD_TIMEUNIT_PCMBYTES);
		
		info.bitDepth = numBits;
		info.numChannels = numChannels;
		info.sampleRate = (UINT32)frequency;
		info.numSamples = size / (info.bitDepth / 8);

		UINT32 bytesPerSample = info.bitDepth / 8;
		UINT32 bufferSize = info.numSamples * bytesPerSample;
		UINT8* sampleBuffer = (UINT8*)bs_alloc(bufferSize);
		assert(bufferSize == size);
		
		UINT8* startData = nullptr;
		UINT8* endData = nullptr;
		UINT32 startSize = 0;
		UINT32 endSize = 0;
		sound->lock(0, size, (void**)&startData, (void**)&endData, &startSize, &endSize);

		if(format == FMOD_SOUND_FORMAT_PCMFLOAT)
		{
			assert(info.bitDepth == 32);

			UINT32* output = (UINT32*)sampleBuffer;
			for(UINT32 i = 0; i < info.numSamples; i++)
			{
				float value = *(((float*)startData) + i);
				*output = (UINT32)(value * 2147483647.0f);
				output++;
			}
		}
		else
		{
			memcpy(sampleBuffer, startData, bufferSize);
		}

		sound->unlock((void**)&startData, (void**)&endData, startSize, endSize);
		sound->release();

		SPtr<const AudioClipImportOptions> clipIO = std::static_pointer_cast<const AudioClipImportOptions>(importOptions);

		// If 3D, convert to mono
		if (clipIO->getIs3D() && info.numChannels > 1)
		{
			UINT32 numSamplesPerChannel = info.numSamples / info.numChannels;

			UINT32 monoBufferSize = numSamplesPerChannel * bytesPerSample;
			UINT8* monoBuffer = (UINT8*)bs_alloc(monoBufferSize);

			AudioUtility::convertToMono(sampleBuffer, monoBuffer, info.bitDepth, numSamplesPerChannel, info.numChannels);

			info.numSamples = numSamplesPerChannel;
			info.numChannels = 1;

			bs_free(sampleBuffer);

			sampleBuffer = monoBuffer;
			bufferSize = monoBufferSize;
		}

		// Convert bit depth if needed
		if (clipIO->getBitDepth() != info.bitDepth)
		{
			UINT32 outBufferSize = info.numSamples * (clipIO->getBitDepth() / 8);
			UINT8* outBuffer = (UINT8*)bs_alloc(outBufferSize);

			AudioUtility::convertBitDepth(sampleBuffer, info.bitDepth, outBuffer, clipIO->getBitDepth(), info.numSamples);

			info.bitDepth = clipIO->getBitDepth();
//.........这里部分代码省略.........

UBOOL USwFMOD::PlayMusic( UMusic* Music, FMOD::Channel* channel, BYTE SongSection, BYTE CdTrack, EMusicTransition Transition )
{
	guard(USwFMOD::PlayMusic);
	//SWF_LOG( NAME_DevSound, TEXT("%s >> %s :: [%s]"), SWF_PLOG, *ToStr(Music), *ToStr(SongSection), *ToStr(CdTrack), *ToStr(Transition)  );
	FMOD_RESULT result;

	if( !Music )
		return 0;

	/*if( channel )
	{
		// there can be only one music
		//SWF_LOG( NAME_DevSound, TEXT("%s :: %s :: StopMusic %s"), SWF_PLOG, *PrintChannel(musicchannel) );
		SWF_FMOD_RCALL0( musicchannel->setUserData(NULL) );
		SWF_FMOD_RCALL0( musicchannel->stop() );
	}*/


	// Non-modules use one UMusic object for each SongSection
	if( Music->FileType == SoundType_OGG
	||	Music->FileType == SoundType_MP2 
	||	Music->FileType == SoundType_MP3 )
	{
		Viewport->Actor->SongSection = 0;

		FString postfix = GetSongSectionPostfix(SongSection);
		if( postfix )
		{
			FString objname = FString::Printf( TEXT("%s%s.%s%s"), Music->GetName(), *postfix, Music->GetName(), *postfix);
			UMusic* newmusic = Cast<UMusic>(StaticLoadObject( Music->GetClass(), NULL, *objname, NULL, LOAD_NoWarn | LOAD_Quiet, NULL ));
			if( newmusic )
			{
				SWF_LOG( NAME_DevSound, TEXT("%s :: %s :: Dynamic Music: %s"), SWF_PLOG, *ToStr(objname) );
				Music = newmusic;
				Viewport->Actor->SongSection = SongSection;
			}
		}

		SongSection = Viewport->Actor->SongSection;
	}



	// Register sample
	FMOD::Sound* sample = RegisterMusicSample(Music);
	if( !sample )
		return 0;

	// Sample defaults
	FLOAT deffrequency;
	FLOAT defvolume;
	FLOAT defpanning;
	INT defpriority;
	FMOD_MODE fmode;
	SWF_FMOD_RCALL0( sample->getDefaults( &deffrequency, &defvolume, &defpanning, &defpriority ) );
	SWF_FMOD_RCALL0( sample->getMode(&fmode) );

	// Channel defaults
	FMOD::ChannelGroup* channelgroup = MusicChannels;
	FMOD_CHANNELINDEX channelindex = IsChannelValid(channel) ? FMOD_CHANNEL_REUSE : FMOD_CHANNEL_FREE;
	FLOAT frequency = deffrequency * 1.0f;
	FLOAT volume = defvolume * 1.0f;
	FLOAT panning = defpanning * 1.0f;
	INT priority = PriorityMusic;


	// Update FMOD to free finished channels
	guard(UpdateFMOD);
	SWF_FMOD_RCALL0( System->update() );
	unguard;

	// Play stream
	SWF_FMOD_RCALL0( System->playSound(channelindex, sample, true, &channel) );
//	SWF_FMOD_RCALL0( VerifyNewChannel(channel) );

	// Update channel
	SWF_FMOD_RCALL0( channel->setUserData(NULL) );
	SWF_FMOD_RCALL0( channel->setChannelGroup(channelgroup) );
	SWF_FMOD_RCALL0( channel->setMode(fmode) );
	if( !HasFlag(fmode,FMOD_3D) )
	{
		SWF_FMOD_RCALL0( channel->setPan(panning) );
	}
	SWF_FMOD_RCALL0( channel->setFrequency(frequency) );
	SWF_FMOD_RCALL0( channel->setVolume(volume) );
	SWF_FMOD_RCALL0( channel->setPriority(priority) );

	// restore position
	result = channel->setPosition(SongSection,FMOD_TIMEUNIT_MODORDER);
	FSwPosition pos = MusicPositions(SongSection);
	if( pos.ms != 0 )
	{
		channel->setPosition(pos.ms,FMOD_TIMEUNIT_MS);
	}
	else
	{
		// TODO:: doesn't work?!
		result = channel->setPosition(pos.pattern,FMOD_TIMEUNIT_MODPATTERN);
		result = channel->setPosition(pos.row,FMOD_TIMEUNIT_MODROW);
	}
//.........这里部分代码省略.........

UBOOL USwFMOD::PlaySound
(
	AActor*	Actor,
	INT		Id,
	USound*	Sound,
	FVector	Location,
	FLOAT	Volume,
	FLOAT	Radius,
	FLOAT	Pitch
)
{
	guard(USwFMOD::PlaySound);
	//SWF_LOG( NAME_DevSound, TEXT("%s >> %s :: [%s],[%s],[%s],[%s],[%s],[%s],[%s]"), SWF_PLOG, *ToStr(FSwSoundId(Id)), *ToStr(Actor,true), *ToStr(Sound), *ToStr(Location), *ToStr(Volume), *ToStr(Radius), *ToStr(Pitch) );
	FMOD_RESULT result;

	if( !Viewport || !Sound )
		return 0;

	// Sound slot rules
	FSwSoundId SoundId = FSwSoundId(Id);
	if( SoundId.GetSlot() != SLOT_None )
	{
		for( FSwChannelEnumerator it(System); it; ++it )
		{
			FMOD::Channel* channel = *it;
			if( IsChannelValid(channel) )
			{
				FSwSoundId cid = GetChannelId(channel);

				// If Actor is the same and Slot is the same:
				// - prevent this sound from plaing if NoOverride
				// - stop the old sound otherwise
				if( cid.GetSlot() == SoundId.GetSlot()
				&&	cid.GetActor() == SoundId.GetActor() )
				{
					if( cid.GetNoOverride() )
					{
						//SWF_LOG( NAME_DevSound, TEXT("%s -- %s :: NO OVERRIDE <%s> <%s>"), SWF_PLOG, *ToStr(FSwSoundId(Id)), *PrintChannel(channel) );
						return 0;
					}
					//SWF_LOG( NAME_DevSound, TEXT("%s -- %s :: STOP <%s> <%s>"), SWF_PLOG, *ToStr(SoundId), *PrintChannel(channel) );
					SWF_FMOD_CALL( channel->setUserData(NULL) );
					SWF_FMOD_CALL( channel->stop() );
				}
			}
		}
	}

	// Register sample
	FMOD::Sound* sample = RegisterSoundSample(Sound);
	if( !sample )
		return 0;

	// Sample defaults
	FLOAT deffrequency;
	FLOAT defvolume;
	FLOAT defpanning;
	INT defpriority;
	FMOD_MODE fmode;
	SWF_FMOD_RCALL0( sample->getDefaults( &deffrequency, &defvolume, &defpanning, &defpriority ) );
	SWF_FMOD_RCALL0( sample->getMode(&fmode) );

	// Channel defaults
	FMOD::ChannelGroup* channelgroup = EffectChannels;
	FMOD_CHANNELINDEX channelindex = FMOD_CHANNEL_FREE;
	FLOAT mindist = ToFMODFloat(DistanceMin);
	FLOAT radius = ToFMODFloat(Radius);
	TSwSortMinMax( mindist, radius );
	FMOD_VECTOR location = ToFMODVector(Location); 
	FMOD_VECTOR velocity = ToFMODNormal(FVector(0,0,0));
	FLOAT frequency = deffrequency * Pitch;
	FLOAT volume = defvolume * Volume;
	FLOAT panning = defpanning * 1.0f;
	INT priority = PrioritySound; 

	// 2D or 3D?
	AActor* ViewActor = Viewport->Actor->ViewTarget ? Viewport->Actor->ViewTarget : Viewport->Actor;
	UBOOL bIs3D = Actor && (b3DCameraSounds || Actor != ViewActor);
	if( bIs3D )
	{
		fmode &= ~FMOD_2D;
		fmode |= FMOD_3D | FMOD_3D_LINEARROLLOFF;

		// Radius, location & Velocity
		FMOD_VECTOR location = ToFMODVector(Actor->Location); 
		FMOD_VECTOR velocity = ToFMODVector(Actor->Velocity); 

		SWF_VERIFY_FLOAT( mindist );
		SWF_VERIFY_FLOAT( radius );
		SWF_VERIFY_FMODVECTOR( location );
		SWF_VERIFY_FMODVECTOR( velocity );
	}
	else
	{
		fmode &= ~FMOD_3D;
		fmode |= FMOD_2D;
	}

	// Sound effects other than WAV go into compressed group (conversations most likely)
	if( Sound->FileType != SoundType_WAV )
//.........这里部分代码省略.........

int FMOD_Main()
{
    FMOD::System           *system;
    FMOD::Sound            *sound[3];
    FMOD::Channel          *channel = 0;
    FMOD::ChannelGroup     *channelgroup = 0;
    FMOD_RESULT             result;
    unsigned int            version, dsp_block_len, count;
    int                     outputrate = 0;
    void                   *extradriverdata = 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(100, FMOD_INIT_NORMAL, extradriverdata);
    ERRCHECK(result);

    /*
        Get information needed later for scheduling.  The mixer block size, and the output rate of the mixer.
    */
    result = system->getDSPBufferSize(&dsp_block_len, 0);
    ERRCHECK(result);

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

    /*
        Load 3 sounds - these are just sine wave tones at different frequencies.  C, D and E on the musical scale.
    */
    result = system->createSound(Common_MediaPath("c.ogg"), FMOD_DEFAULT, 0, &sound[NOTE_C]);
    ERRCHECK(result);
    result = system->createSound(Common_MediaPath("d.ogg"), FMOD_DEFAULT, 0, &sound[NOTE_D]);
    ERRCHECK(result);
    result = system->createSound(Common_MediaPath("e.ogg"), FMOD_DEFAULT, 0, &sound[NOTE_E]);
    ERRCHECK(result);

    /* 
        Create a channelgroup that the channels will play on.  We can use this channelgroup as our clock reference. 
        It also means we can pause and pitch bend the channelgroup, without affecting the offsets of the delays, because the channelgroup clock
        which the channels feed off, will be pausing and speeding up/slowing down and still keeping the children in sync.
    */
    result = system->createChannelGroup("Parent", &channelgroup);
    ERRCHECK(result);

    unsigned int numsounds = sizeof(note) / sizeof(note[0]);

    /*
        Play all the sounds at once! Space them apart with set delay though so that they sound like they play in order.
    */
    for (count = 0; count < numsounds; count++)
    {
        static unsigned long long clock_start = 0;
        unsigned int slen;
        FMOD::Sound *s = sound[note[count]];                            /* Pick a note from our tune. */

        result = system->playSound(s, channelgroup, true, &channel);    /* Play the sound on the channelgroup we want to use as the parent clock reference (for setDelay further down) */
        ERRCHECK(result);

        if (!clock_start)
        {
            result = channel->getDSPClock(0, &clock_start);
            ERRCHECK(result);

            clock_start += (dsp_block_len * 2);                         /* Start the sound into the future, by 2 mixer blocks worth. */
                                                                        /* Should be enough to avoid the mixer catching up and hitting the clock value before we've finished setting up everything. */
                                                                        /* Alternatively the channelgroup we're basing the clock on could be paused to stop it ticking. */
        }
        else
        {
            float freq;

            result = s->getLength(&slen, FMOD_TIMEUNIT_PCM);            /* Get the length of the sound in samples. */
            ERRCHECK(result);

            result = s->getDefaults(&freq, 0);                          /* Get the default frequency that the sound was recorded at. */
            ERRCHECK(result);

            slen = (unsigned int)((float)slen / freq * outputrate);     /* Convert the length of the sound to 'output samples' for the output timeline. */
            
            clock_start += slen;                                        /* Place the sound clock start time to this value after the last one. */
        }

        result = channel->setDelay(clock_start, 0, false);              /* Schedule the channel to start in the future at the newly calculated channelgroup clock value. */
        ERRCHECK(result);

        result = channel->setPaused(false);                             /* Unpause the sound.  Note that you won't hear the sounds, they are scheduled into the future. */
        ERRCHECK(result);
//.........这里部分代码省略.........

//.........这里部分代码省略.........
	// Update sounds.
	//
	guard(USwFMODAudio::Update::UpdateSounds);

	// Iterate through all channels
	for( FSwChannelEnumerator it(System); it; ++it )
	{
		FMOD::Channel* channel = *it;
		if( !IsChannelValid(channel) )
			continue;

		// Channel data
		FMOD::Sound* sample = GetChannelSample(channel);
		if( !sample )
			continue;

		UObject* object = GetSampleObject(sample);
		if( !object )
			continue;
		USound* sound = Cast<USound>(object);

		FSwSoundId id = GetChannelId(channel);
		AActor* actor = id.GetActor();

		FMOD_MODE fmode;
		SWF_FMOD_CALL( channel->getMode(&fmode) );
		UBOOL bIs3D = HasFlag(fmode,FMOD_3D);

		// Sample defaults
		FLOAT deffrequency;
		FLOAT defvolume;
		FLOAT defpanning;
		INT defpriority;
		SWF_FMOD_CALL( sample->getDefaults( &deffrequency, &defvolume, &defpanning, &defpriority ) );
	

		if( sound )
		{
			if( actor && actor->IsValid() )
			{
				// Ambient sounds
				if( id.GetSlot() == SLOT_Ambient )
				{
					if(	actor->AmbientSound != sound
					||	FDist(location, actor->Location) > actor->WorldSoundRadius() + AmbientHysteresis
					||  !Realtime )
					{
						// Stop ambient sound
						//SWF_LOG( NAME_DevSound, TEXT("%s -- %s :: Ambient OUT [%d]"), SWF_PLOG, *ToStr(id) );
						SWF_FMOD_CALL( channel->setUserData(NULL) );
						SWF_FMOD_CALL( channel->stop() );
						continue;
					}
					else
					{
						// Update ambient sound properties.
						FLOAT volume = actor->SoundVolume / 255.0f;
						FLOAT frequency = (actor->SoundPitch / 64.0f) * deffrequency;

						SWF_VERIFY_FLOAT(volume);
						SWF_VERIFY_FLOAT(frequency);

						SWF_FMOD_CALL( channel->setVolume( volume ) );
						SWF_FMOD_CALL( channel->setFrequency( frequency ) );

						if( bIs3D )