C++ IXAudio2SourceVoice::GetState方法代码示例

static void
XAUDIO2_WaitDone(_THIS)
{
    IXAudio2SourceVoice *source = _this->hidden->source;
    XAUDIO2_VOICE_STATE state;
    SDL_assert(!_this->enabled);  /* flag that stops playing. */
    source->Discontinuity();
    source->GetState(&state);
    while (state.BuffersQueued > 0) {
        WaitForSingleObjectEx(_this->hidden->semaphore, INFINITE, 0);
        source->GetState(&state);
    }
}

void GameAudio::playMusicOnce(MusicTypes musicType)
{
	if (musicRegistrationMap[musicType] == true)
	{
		IXAudio2SourceVoice *sourceVoice = musicMap[musicType];

		XAUDIO2_VOICE_STATE voiceState;
		sourceVoice->GetState(&voiceState);

		if (musicType == ENUM_MUSIC_LEVEL_COMPLETE)
		{
			if (levelCompleteMusicBuffered == false)
			{
				XAUDIO2_BUFFER *proto = musicBufferPrototypeMap[musicType];
				bool ssbSuccess = SUCCEEDED(sourceVoice->SubmitSourceBuffer(proto));
				sourceVoice->Start();
				levelCompleteMusicBuffered = true;
			}
		}

		/// here put the game over music
		else if (musicType == ENUM_MUSIC_GAMEOVER)
		{
			if (gameOverMusicBuffered == false)
			{
				XAUDIO2_BUFFER *proto = musicBufferPrototypeMap[musicType];
				bool ssbSuccess = SUCCEEDED(sourceVoice->SubmitSourceBuffer(proto));
				sourceVoice->Start();
				gameOverMusicBuffered = true;
			}
		}
	}
}

void GameAudio::processHealSound()
{
	if (soundEffectRegistrationMap[ENUM_SOUND_EFFECT_HEAL] == true)
	{
		Game *game = Game::getSingleton();
		GameStateManager *gsm = game->getGSM();
		SpriteManager *spriteMgr = gsm->getSpriteManager();
		PlayerSprite *player = spriteMgr->getPlayer();

		bool isHealing = player->getIshealing();

		if (isHealing == true)
		{
			IXAudio2SourceVoice *healSound = soundEffectMap[ENUM_SOUND_EFFECT_HEAL];

			XAUDIO2_VOICE_STATE voiceState;
			healSound->GetState(&voiceState);

			//// [voiceState.BuffersQueued <= 0] means there are nothing in the buffer
			//// so let's make a new buffer to queue the sound
			if (voiceState.BuffersQueued <= 0)
			{
				XAUDIO2_BUFFER *proto = audioBufferPrototypeMap[ENUM_SOUND_EFFECT_HEAL];
				bool ssbSuccess = SUCCEEDED(healSound->SubmitSourceBuffer(proto));
				healSound->Start();
				//// After all, there will be only one buffer node in the queue always ...
			}
			//// if there is something in the buffer
			else
			{
				/// do nothing
			}
		}
	}
}

void GameAudio::processPunchSound()
{
	if (soundEffectRegistrationMap[ENUM_SOUND_EFFECT_PUNCH] == true)
	{
		Game *game = Game::getSingleton();
		GameStateManager *gsm = game->getGSM();
		SpriteManager *spriteMgr = gsm->getSpriteManager();
		PlayerSprite *player = spriteMgr->getPlayer();

		wstring playerState = player->getCurrentState();

		if (playerState.compare(L"PUNCH_LEFT") == 0 || playerState.compare(L"PUNCH_RIGHT") == 0
			|| playerState.compare(L"PUNCH_BACK") == 0 || playerState.compare(L"PUNCH_FRONT") == 0)
		{
			IXAudio2SourceVoice *punchSound = soundEffectMap[ENUM_SOUND_EFFECT_PUNCH];

			XAUDIO2_VOICE_STATE voiceState;
			punchSound->GetState(&voiceState);

			//// [voiceState.BuffersQueued <= 0] means there are nothing in the buffer
			//// so let's make a new buffer to queue the sound
			if (voiceState.BuffersQueued <= 0)
			{
				XAUDIO2_BUFFER *proto = audioBufferPrototypeMap[ENUM_SOUND_EFFECT_PUNCH];
				bool ssbSuccess = SUCCEEDED(punchSound->SubmitSourceBuffer(proto));
				punchSound->Start();
			}
			//// if there is something in the buffer
			else
			{
				/// do nothing
			}
		}
	}
}

	virtual const char* write_frame( void * buffer, unsigned num_samples, bool wait )
	{
		if ( paused )
		{
			if ( wait ) Sleep( MulDiv( num_samples / nch, 1000, sample_rate ) );
			return 0;
		}

		if ( reopen_count )
		{
			if ( ! --reopen_count )
			{
				const char * err = open( hwnd, sample_rate, nch, max_samples_per_frame, num_frames );
				if ( err )
				{
					reopen_count = 60 * 5;
					return err;
				}
			}
			else
			{
				if ( wait ) Sleep( MulDiv( num_samples / nch, 1000, sample_rate ) );
				return 0;
			}
		}

		for (;;) {
			sVoice->GetState( &vState );
			assert( vState.BuffersQueued <= num_frames );
			if( vState.BuffersQueued < num_frames ) {
				if( vState.BuffersQueued == 0 ) {
					// buffers ran dry
				}
				// there is at least one free buffer
				break;
			} else {
				// wait for one buffer to finish playing
				ResetEvent( notify.hBufferEndEvent );
				WaitForSingleObject( notify.hBufferEndEvent, INFINITE );
			}
		}
		samples_in_buffer[ buffer_write_cursor ] = num_samples / nch;
		XAUDIO2_BUFFER buf = {0};
		unsigned num_bytes = num_samples * 2;
		buf.AudioBytes = num_bytes;
		buf.pAudioData = ( const BYTE * )( sample_buffer + max_samples_per_frame * buffer_write_cursor );
		buf.pContext = this;
		buffer_write_cursor = ( buffer_write_cursor + 1 ) % num_frames;
		memcpy( ( void * ) buf.pAudioData, buffer, num_bytes );
		if( sVoice->SubmitSourceBuffer( &buf ) == S_OK )
		{
			InterlockedIncrement( &buffered_count );
			return 0;
		}

		close();
		reopen_count = 60 * 5;

		return 0;
	}

	virtual double buffered()
	{
		sVoice->GetState( &vState );
		double buffered_count = vState.BuffersQueued;
		INT64 samples_played = vState.SamplesPlayed - this->samples_played;
		buffered_count -= double( samples_played ) / double( max_samples_per_frame / nch );
		return buffered_count;
	}

void XAudio2_Output::write(u16 * finalWave, int length)
{
	if( !initialized || failed ) return;

	while( true ) {
		if ( device_changed ) {
			close();
			if (!init(freq)) return;
		}

		sVoice->GetState( &vState );

		ASSERT( vState.BuffersQueued <= bufferCount );

		if( vState.BuffersQueued < bufferCount ) {
			if( vState.BuffersQueued == 0 ) {
				// buffers ran dry
				if( systemVerbose & VERBOSE_SOUNDOUTPUT ) {
					static unsigned int i = 0;
					log( "XAudio2: Buffers were not refilled fast enough (i=%i)\n", i++ );
				}
			}
			// there is at least one free buffer
			break;
		} else {
			// the maximum number of buffers is currently queued
			if( synchronize && !speedup && !theApp.throttle ) {
				// wait for one buffer to finish playing
				if (WaitForSingleObject( notify.hBufferEndEvent, 10000 ) == WAIT_TIMEOUT) {
					device_changed = true;
				}
			} else {
				// drop current audio frame
				return;
			}
		}
	}

	// copy & protect the audio data in own memory area while playing it
	CopyMemory( &buffers[ currentBuffer * soundBufferLen ], finalWave, soundBufferLen );

	buf.AudioBytes = soundBufferLen;
	buf.pAudioData = &buffers[ currentBuffer * soundBufferLen ];

	currentBuffer++;
	currentBuffer %= ( bufferCount + 1 ); // + 1 because we need one temporary buffer

	HRESULT hr = sVoice->SubmitSourceBuffer( &buf ); // send buffer to queue
	ASSERT( hr == S_OK );
}

void GameAudio::playMusicRepeat(MusicTypes musicType)
{
	if (musicRegistrationMap[musicType] == true)
	{
		IXAudio2SourceVoice *sourceVoice = musicMap[musicType];

		XAUDIO2_VOICE_STATE voiceState;
		sourceVoice->GetState(&voiceState);

		if (voiceState.BuffersQueued <= 0)
		{
			XAUDIO2_BUFFER *proto = musicBufferPrototypeMap[musicType];
			bool ssbSuccess = SUCCEEDED(sourceVoice->SubmitSourceBuffer(proto));
			sourceVoice->Start();
		}
	}
}

void GameAudio::processMoneySound()
{
	if (soundEffectRegistrationMap[ENUM_SOUND_EFFECT_MONEY] == true)
	{
		if (moneySoundSignal == true)
		{
			IXAudio2SourceVoice *moneySound = soundEffectMap[ENUM_SOUND_EFFECT_MONEY];

			XAUDIO2_VOICE_STATE voiceState;
			moneySound->GetState(&voiceState);

			XAUDIO2_BUFFER *proto = audioBufferPrototypeMap[ENUM_SOUND_EFFECT_MONEY];
			bool ssbSuccess = SUCCEEDED(moneySound->SubmitSourceBuffer(proto));
			moneySound->Start();

			moneySoundSignal = false;
		}
	}
}

void XAudio2Streamer::Stream( void const *pSamples )
{
    // Verify buffer availability
    XAUDIO2_VOICE_STATE xa2vs;
    m_pXAudio2SourceVoice->GetState( &xa2vs );
    if( xa2vs.BuffersQueued == m_count )
        return;

    // Copy samples to buffer
    Sample *pBuffer( &m_samples[ m_index * m_size ] );
    using std::memcpy;
    memcpy( pBuffer, pSamples, m_size );

    // Submit buffer to voice
    XAUDIO2_BUFFER xa2b = {};
    xa2b.AudioBytes = UINT32( m_size );
    xa2b.pAudioData = pBuffer;
    if( FAILED( m_pXAudio2SourceVoice->SubmitSourceBuffer( &xa2b ) ) )
        return;

    // Select next buffer
    m_index = ( m_index + 1 ) % m_count;
}

void GameAudio::processShootSound()
{
	if (soundEffectRegistrationMap[ENUM_SOUND_EFFECT_SHOOT] == true)
	{
		Game *game = Game::getSingleton();
		GameStateManager *gsm = game->getGSM();
		SpriteManager *spriteMgr = gsm->getSpriteManager();
		/*if (moneySoundSignal == true)
		{
			IXAudio2SourceVoice *moneySound = soundEffectMap[ENUM_SOUND_EFFECT_MONEY];

			XAUDIO2_VOICE_STATE voiceState;
			moneySound->GetState(&voiceState);

			XAUDIO2_BUFFER *proto = audioBufferPrototypeMap[ENUM_SOUND_EFFECT_MONEY];
			bool ssbSuccess = SUCCEEDED(moneySound->SubmitSourceBuffer(proto));
			moneySound->Start();

			moneySoundSignal = false;
		}
		*/
		if (shootSoundSignal == true)
		{
			IXAudio2SourceVoice *shootSound = soundEffectMap[ENUM_SOUND_EFFECT_SHOOT];

			XAUDIO2_VOICE_STATE voiceState;
			shootSound->GetState(&voiceState);

			XAUDIO2_BUFFER *proto = audioBufferPrototypeMap[ENUM_SOUND_EFFECT_SHOOT];
			bool ssbSuccess = SUCCEEDED(shootSound->SubmitSourceBuffer(proto));
			shootSound->Start();

			shootSoundSignal = false;
		}

		/*
		list<Bot*>::iterator botIt = spriteMgr->getBotsIterator();
		list<Bot*>::iterator endBotIt = spriteMgr->getEndOfBotsIterator();
		while (botIt != endBotIt)
		{
		Bot *bot = (*botIt);
		wstring botCurState = bot->getCurrentState();
		if (botCurState.compare(L"SHOOT_LEFT") == 0 || botCurState.compare(L"SHOOT_RIGHT") == 0
		|| botCurState.compare(L"SHOOT_BACK") == 0 || botCurState.compare(L"SHOOT_FRONT") == 0)
		{
		IXAudio2SourceVoice *shootSound = soundEffectMap[ENUM_SOUND_EFFECT_SHOOT];

		XAUDIO2_VOICE_STATE voiceState;
		shootSound->GetState(&voiceState);

		if (voiceState.BuffersQueued <= 0)
		{
		XAUDIO2_BUFFER *proto = audioBufferPrototypeMap[ENUM_SOUND_EFFECT_SHOOT];
		bool ssbSuccess = SUCCEEDED(shootSound->SubmitSourceBuffer(proto));
		shootSound->Start();
		}
		}
		botIt++;
		}

		PlayerSprite *player = spriteMgr->getPlayer();
		wstring playerState = player->getCurrentState();
		if (playerState.compare(L"SHOOT_LEFT") == 0 || playerState.compare(L"SHOOT_RIGHT") == 0
		|| playerState.compare(L"SHOOT_BACK") == 0 || playerState.compare(L"SHOOT_FRONT") == 0)
		{
		IXAudio2SourceVoice *shootSound = soundEffectMap[ENUM_SOUND_EFFECT_SHOOT];

		XAUDIO2_VOICE_STATE voiceState;
		shootSound->GetState(&voiceState);

		//// [voiceState.BuffersQueued <= 0] means there are nothing in the buffer
		//// so let's make a new buffer to queue the sound
		if (voiceState.BuffersQueued <= 0)
		{
		XAUDIO2_BUFFER *proto = audioBufferPrototypeMap[ENUM_SOUND_EFFECT_SHOOT];
		bool ssbSuccess = SUCCEEDED(shootSound->SubmitSourceBuffer(proto));
		shootSound->Start();
		}
		//// if there is something in the buffer
		else
		{
		/// do nothing
		}
		}
		*/
		
	}
}

HRESULT WMA::OnSample(DWORD dwOutputNum, QWORD cnsSampleTime, QWORD cnsSampleDuration, DWORD dwFlags, INSSBuffer *pSample)
{
    if( !m_bOpen ) {
        if(m_hRespondEvent) {
            SetEvent(m_hRespondEvent);
        }
        return S_OK;
    }

    if( m_bEOF ) {
        SetEvent(m_hRespondEvent);
        return S_OK;
    }

    /*BYTE* pBuf;
    DWORD dwLen;
    if(!pSample)
    	return E_FAIL;


    HRESULT hr = pSample->GetBuffer(&pBuf);
    if(FAILED(hr))
    	return E_FAIL;

    hr = pSample->GetLength(&dwLen);
    if(FAILED(hr))
    	return E_FAIL;

    //Expand the decoding buffer if it's needed
    if((m_nWritePtr + dwLen) > m_nBufferSize) {
    	uint32_t nNewBufferSize = m_nWritePtr + dwLen + DECODING_BUFFER_ERROR;
    	uint8_t* pNewBuffer = new uint8_t[nNewBufferSize];
    	memcpy( pNewBuffer, m_pBuffer, m_nWritePtr );
    	if(m_pBuffer) {
    		delete [] m_pBuffer;
    		m_pBuffer = 0;
    	}

    	m_pBuffer = pNewBuffer;
    	m_nBufferSize = nNewBufferSize;
    }

    memcpy(m_pBuffer + m_nWritePtr, pBuf, dwLen);
    m_nWritePtr += dwLen;

    if(m_nWritePtr >= m_nTargetPtr)
    {
    	SetEvent(m_hRespondEvent);
    	EnterCriticalSection(&m_csTerm);
    	WaitForSingleObject(m_hWaitEvent, INFINITE);
    	LeaveCriticalSection(&m_csTerm); //this should be happening when shit gets poped of the stack probably?
    }*/

    BYTE* pBuf;
    //BYTE* leakyBuffer;
    DWORD dwLen;
    if(!pSample)
        return E_FAIL;

    HRESULT hr = pSample->GetBuffer(&pBuf);
    if(FAILED(hr))
        return E_FAIL;

    hr = pSample->GetLength(&dwLen);
    if(FAILED(hr))
        return E_FAIL;

    //leakyBuffer = new BYTE[dwLen];
    XAUDIO2_VOICE_STATE state;
    for(; ; )
    {
        mSourceVoice->GetState( &state );
        if( state.BuffersQueued < MAX_BUFFER_COUNT ) {
            break;
        }
        //std::cout << "Blocking..." << std::cout;
        WaitForSingleObject( mVoiceCallback.hBufferEndEvent, INFINITE );
    }

    memcpy(&(mDecodedBuffers[mCurrentBuffer * mMaxBufferSize]), pBuf, dwLen);
    //memcpy( leakyBuffer, pBuf, dwLen );

    XAUDIO2_BUFFER buffer = {0};
    buffer.AudioBytes = dwLen;
    //buffer.Flags = XAUDIO2_END_OF_STREAM;
    buffer.Flags = 0;
    //buffer.pAudioData = leakyBuffer;
    buffer.pAudioData = &(mDecodedBuffers[mCurrentBuffer * mMaxBufferSize]);
    mSourceVoice->SubmitSourceBuffer( &buffer );

    mCurrentTime = cnsSampleTime + cnsSampleDuration;
    mCurrentBuffer++;
    mCurrentBuffer %= MAX_BUFFER_COUNT;

    //probably not an awesome way to do this, since we're dropping audio -- use a ring buffer?
    //uint32_t copyLen = dwLen;
    //std::cout << dwLen << std::endl;
    //if(m_nWritePtr + copyLen > mMaxBufferSize) {
    //	copyLen = mMaxBufferSize - m_nWritePtr;
    //}
//.........这里部分代码省略.........

//the streaming thread procedure
DWORD WINAPI StreamProc(LPVOID pContext)
{
	//required by XAudio2
	CoInitializeEx(NULL, COINIT_MULTITHREADED);

	if(pContext == NULL)
	{
		CoUninitialize();
		return -1;
	}

	StreamContext* sc = (StreamContext*)pContext;

	//instantiate the voice's callback class
	StreamingVoiceCallback callback;

	//load a file for streaming, non-buffered disk reads (no system cacheing)
	StreamingWave inFile;
	if(!inFile.load(sc->filename))
	{
		SetEvent(sc->VoiceLoadEvent);
		CoUninitialize();
		return -3;
	}

	//create the voice
	IXAudio2SourceVoice* source = NULL;
	if(FAILED(XAudio2->CreateSourceVoice(&source, &inFile.waveFormat.Format, 0, 2.0f, &callback)))
	{
		SetEvent(sc->VoiceLoadEvent);
		CoUninitialize();
		return -5;
	}

	//fill and queue the maximum number of buffers (except the one needed for reading new wave data)
	bool somethingsWrong = false;
	XAUDIO2_VOICE_STATE voiceState = {0};
	source->GetState(&voiceState);
	while(voiceState.BuffersQueued < STREAMINGWAVE_BUFFER_COUNT - 1 && !somethingsWrong)
	{
		//read and fill the next buffer to present
		switch(inFile.prepare())
		{
		case StreamingWave::PR_EOF:
			//if end of file, loop the file read
			inFile.resetFile(); //intentionally fall-through to loop sound
		case StreamingWave::PR_SUCCESS:
			//present the next available buffer
			inFile.swap();
			//submit another buffer
			source->SubmitSourceBuffer(inFile.buffer());
			source->GetState(&voiceState);
			break;
		case StreamingWave::PR_FAILURE:
			somethingsWrong = true;
			break;
		}
	}

	//return the created voice through the context pointer
	sc->pVoice = &source;

	//signal that the voice has prepared for streaming, and ready to start
	SetEvent(sc->VoiceLoadEvent);

	//group the events for the Wait function
	HANDLE Events[2] = {callback.BufferEndEvent, QuitEvent};

	bool quitting = false;
	while(!quitting)
	{
		//wait until either the source voice is ready for another buffer, or the abort signal is set
		DWORD eventFired = WaitForMultipleObjects(2, Events, FALSE, INFINITE);
		switch(eventFired)
		{
		case 0: //buffer ended event for source voice
			//reset the event manually
			ResetEvent(Events[0]);

			//make sure there's a full number of buffers
			source->GetState(&voiceState);
			while(voiceState.BuffersQueued < STREAMINGWAVE_BUFFER_COUNT - 1 && !somethingsWrong)
			{
				//read and fill the next buffer to present
				switch(inFile.prepare())
				{
				case StreamingWave::PR_EOF:
					//if end of file, loop the file read
					inFile.resetFile();	//intentionally fall-through to loop sound
				case StreamingWave::PR_SUCCESS:
					//present the next available buffer
					inFile.swap();
					//submit another buffer
					source->SubmitSourceBuffer(inFile.buffer());
					source->GetState(&voiceState);
					break;
				case StreamingWave::PR_FAILURE:
					somethingsWrong = true;
					break;
//.........这里部分代码省略.........

//--------------------------------------------------------------------------------------
// Name: PlayWave
// Desc: Plays a wave and blocks until the wave finishes playing
//--------------------------------------------------------------------------------------
_Use_decl_annotations_
HRESULT PlayWave( IXAudio2* pXaudio2, LPCWSTR szFilename )
{
    //
    // Locate the wave file
    //
    WCHAR strFilePath[MAX_PATH];
    HRESULT hr = FindMediaFileCch( strFilePath, MAX_PATH, szFilename );
    if( FAILED( hr ) )
    {
        wprintf( L"Failed to find media file: %s\n", szFilename );
        return hr;
    }

    //
    // Read in the wave file
    //
    std::unique_ptr<uint8_t[]> waveFile;
    DirectX::WAVData waveData;
    if ( FAILED( hr = DirectX::LoadWAVAudioFromFileEx( strFilePath, waveFile, waveData ) ) )
    {
        wprintf( L"Failed reading WAV file: %#X (%s)\n", hr, strFilePath );
        return hr;
    }

    //
    // Play the wave using a XAudio2SourceVoice
    //

    // Create the source voice
    IXAudio2SourceVoice* pSourceVoice;
    if( FAILED( hr = pXaudio2->CreateSourceVoice( &pSourceVoice, waveData.wfx ) ) )
    {
        wprintf( L"Error %#X creating source voice\n", hr );
        return hr;
    }

    // Submit the wave sample data using an XAUDIO2_BUFFER structure
    XAUDIO2_BUFFER buffer = {0};
    buffer.pAudioData = waveData.startAudio;
    buffer.Flags = XAUDIO2_END_OF_STREAM;  // tell the source voice not to expect any data after this buffer
    buffer.AudioBytes = waveData.audioBytes;

    if ( waveData.loopLength > 0 )
    {
        buffer.LoopBegin = waveData.loopStart;
        buffer.LoopLength = waveData.loopLength;
        buffer.LoopCount = 1; // We'll just assume we play the loop twice
    }

#if (_WIN32_WINNT < 0x0602 /*_WIN32_WINNT_WIN8*/) || (_WIN32_WINNT >= 0x0A00 /*_WIN32_WINNT_WIN10*/ )
    if ( waveData.seek )
    {
        XAUDIO2_BUFFER_WMA xwmaBuffer = {0};
        xwmaBuffer.pDecodedPacketCumulativeBytes = waveData.seek;
        xwmaBuffer.PacketCount = waveData.seekCount;
        if( FAILED( hr = pSourceVoice->SubmitSourceBuffer( &buffer, &xwmaBuffer ) ) )
        {
            wprintf( L"Error %#X submitting source buffer (xWMA)\n", hr );
            pSourceVoice->DestroyVoice();
            return hr;
        }
    }
#else
    if ( waveData.seek )
    {
        wprintf( L"This platform does not support xWMA or XMA2\n" );
        pSourceVoice->DestroyVoice();
        return hr;
    }
#endif
    else if( FAILED( hr = pSourceVoice->SubmitSourceBuffer( &buffer ) ) )
    {
        wprintf( L"Error %#X submitting source buffer\n", hr );
        pSourceVoice->DestroyVoice();
        return hr;
    }

    hr = pSourceVoice->Start( 0 );

    // Let the sound play
    BOOL isRunning = TRUE;
    while( SUCCEEDED( hr ) && isRunning )
    {
        XAUDIO2_VOICE_STATE state;
        pSourceVoice->GetState( &state );
        isRunning = ( state.BuffersQueued > 0 ) != 0;

        // Wait till the escape key is pressed
        if( GetAsyncKeyState( VK_ESCAPE ) )
            break;

        Sleep( 10 );
    }

    // Wait till the escape key is released
//.........这里部分代码省略.........

//.........这里部分代码省略.........
    uint32_t waveSize;

    hr = wb.GetWaveData( index, &waveData, waveSize );
    if ( FAILED(hr) )
        return hr;

    WaveBankReader::Metadata metadata;
    hr = wb.GetMetadata( index, metadata );
    if ( FAILED(hr) )
        return hr;

    //
    // Play the wave using a XAudio2SourceVoice
    //

    // Create the source voice
    IXAudio2SourceVoice* pSourceVoice;
    if( FAILED( hr = pXaudio2->CreateSourceVoice( &pSourceVoice, pwfx ) ) )
    {
        wprintf( L"Error %#X creating source voice\n", hr );
        return hr;
    }

    // Submit the wave sample data using an XAUDIO2_BUFFER structure
    XAUDIO2_BUFFER buffer = {0};
    buffer.pAudioData = waveData;
    buffer.Flags = XAUDIO2_END_OF_STREAM;  // tell the source voice not to expect any data after this buffer
    buffer.AudioBytes = waveSize;

    if ( metadata.loopLength > 0 && metadata.loopLength != metadata.duration )
    {
        buffer.LoopBegin = metadata.loopStart;
        buffer.LoopLength = metadata.loopLength;
        buffer.LoopCount = 1; // We'll just assume we play the loop twice
    }

    const uint32_t* seekTable;
    uint32_t seekTableCount;
    uint32_t tag;
    hr = wb.GetSeekTable( index, &seekTable, seekTableCount, tag );

    if ( seekTable )
    {
        if ( tag == WAVE_FORMAT_WMAUDIO2 || tag == WAVE_FORMAT_WMAUDIO3 )
        {
#if (_WIN32_WINNT < 0x0602 /*_WIN32_WINNT_WIN8*/) || (_WIN32_WINNT >= 0x0A00 /*_WIN32_WINNT_WIN10*/ )
            XAUDIO2_BUFFER_WMA xwmaBuffer = {0};
            xwmaBuffer.pDecodedPacketCumulativeBytes = seekTable;
            xwmaBuffer.PacketCount = seekTableCount;
            if( FAILED( hr = pSourceVoice->SubmitSourceBuffer( &buffer, &xwmaBuffer ) ) )
            {
                wprintf( L"Error %#X submitting source buffer (xWMA)\n", hr );
                pSourceVoice->DestroyVoice();
                return hr;
            }
#else
            wprintf( L"This platform does not support xWMA\n" );
            pSourceVoice->DestroyVoice();
            return hr;
#endif
        }
        else if ( tag == 0x166 /* WAVE_FORMAT_XMA2 */ )
        {
            wprintf( L"This platform does not support XMA2\n" );
            pSourceVoice->DestroyVoice();
            return hr;
        }
    }
    else if( FAILED( hr = pSourceVoice->SubmitSourceBuffer( &buffer ) ) )
    {
        wprintf( L"Error %#X submitting source buffer\n", hr );
        pSourceVoice->DestroyVoice();
        return hr;
    }

    hr = pSourceVoice->Start( 0 );

    // Let the sound play
    BOOL isRunning = TRUE;
    while( SUCCEEDED( hr ) && isRunning )
    {
        XAUDIO2_VOICE_STATE state;
        pSourceVoice->GetState( &state );
        isRunning = ( state.BuffersQueued > 0 ) != 0;

        // Wait till the escape key is pressed
        if( GetAsyncKeyState( VK_ESCAPE ) )
            break;

        Sleep( 10 );
    }

    // Wait till the escape key is released
    while( GetAsyncKeyState( VK_ESCAPE ) )
        Sleep( 10 );

    pSourceVoice->DestroyVoice();

    return hr;
}