void prepareMicPlay()
{
waveBlocks = allocateBlocks(BLOCK_SIZE, BLOCK_COUNT);
waveFreeBlockCount = BLOCK_COUNT;
waveCurrentBlock = 0;
InitializeCriticalSection(&waveCriticalSection);
}
MultiContainerBlock3D::MultiContainerBlock3D(MultiBlock3D const& rhs, Box3D subDomain, bool crop)
: MultiBlock3D (
intersect(rhs.getMultiBlockManagement(), subDomain, crop),
rhs.getBlockCommunicator().clone(),
rhs.getCombinedStatistics().clone() )
{
allocateBlocks();
}
MultiContainerBlock3D::MultiContainerBlock3D(plint nx_, plint ny_, plint nz_)
: MultiBlock3D (
// Default envelope-width to 0
defaultMultiBlockPolicy3D().getMultiBlockManagement(nx_,ny_,nz_, 0),
defaultMultiBlockPolicy3D().getBlockCommunicator(),
defaultMultiBlockPolicy3D().getCombinedStatistics() )
{
allocateBlocks();
}
MultiContainerBlock3D::MultiContainerBlock3D (
MultiBlockManagement3D const& multiBlockManagement_,
CombinedStatistics* combinedStatistics_ )
: MultiBlock3D(multiBlockManagement_,
defaultMultiBlockPolicy3D().getBlockCommunicator(),
combinedStatistics_)
{
allocateBlocks();
}
/**
* \brief - open system default WAVE device
* \param s - sydney audio stream handle
* \return - completion status
*/
int openAudio(sa_stream_t *s) {
int status;
WAVEFORMATEX wfx;
UINT supported = FALSE;
status = allocateBlocks(s->blockSize, BLOCK_COUNT, &(s->waveBlocks));
HANDLE_WAVE_ERROR(status, "allocating audio buffer blocks");
s->waveFreeBlockCount = BLOCK_COUNT;
s->waveCurrentBlock = 0;
wfx.nSamplesPerSec = (DWORD)s->rate; /* sample rate */
wfx.wBitsPerSample = 16; /* sample size */
wfx.nChannels = s->channels; /* channels */
wfx.cbSize = 0; /* size of _extra_ info */
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nBlockAlign = (wfx.wBitsPerSample * wfx.nChannels) >> 3;
wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
supported = waveOutOpen(NULL, WAVE_MAPPER, &wfx, (DWORD_PTR)0, (DWORD_PTR)0,
WAVE_FORMAT_QUERY);
if (supported == MMSYSERR_NOERROR) { // audio device opened sucessfully
status = waveOutOpen((LPHWAVEOUT)&(s->hWaveOut), WAVE_MAPPER, &wfx,
(DWORD_PTR)waveOutProc, (DWORD_PTR)s, CALLBACK_FUNCTION);
if (status != MMSYSERR_NOERROR) {
freeBlocks(s->waveBlocks);
s->waveBlocks = NULL;
HANDLE_WAVE_ERROR(status, "opening audio device for playback");
}
}
else if (supported == WAVERR_BADFORMAT) {
printf("Requested format not supported.\n");
// clean up the memory
freeBlocks(s->waveBlocks);
s->waveBlocks = NULL;
return SA_ERROR_NOT_SUPPORTED;
}
else {
printf("Error opening default audio device.\n");
// clean up the memory
freeBlocks(s->waveBlocks);
s->waveBlocks = NULL;
return SA_ERROR_SYSTEM;
}
// create notification for data written to a device
s->callbackEvent = CreateEvent(0, FALSE, FALSE, 0);
// initialise critical section for operations on waveFreeBlockCound variable
InitializeCriticalSection(&(s->waveCriticalSection));
return SA_SUCCESS;
}
bool CWavePlay::Start(PWAVEFORMATEX pWavHead)
{
if (m_bPalyState)
{
return false;
}
if (NULL==pWavHead)
{
return false;
}
//CloseDevice();
_waveBlocks = allocateBlocks(BLOCK_SIZE, BLOCK_COUNT);
_nWaveFreeBlockCount = BLOCK_COUNT;
_nWaveCurrentBlock = 0;
memcpy(&m_wavformex,pWavHead,sizeof(WAVEFORMATEX));
m_wavformex.nBlockAlign = (m_wavformex.wBitsPerSample * m_wavformex.nChannels) >> 3;
m_wavformex.nAvgBytesPerSec = m_wavformex.nBlockAlign * m_wavformex.nSamplesPerSec;
if(::waveOutOpen (0,0,&m_wavformex,0,0,WAVE_FORMAT_QUERY)) //WAVE_FORMAT_QUERY = $0001;{只是判断设备是否支持给定的格式, 并不打开}
{
//TRACE_ERR2("wave设备初始化失败～");
return false;
}
//lphWaveOut: PHWaveOut; {用于返回设备句柄的指针; 如果 dwFlags=WAVE_FORMAT_QUERY, 这里应是 nil}
//uDeviceID: UINT; {设备ID; 可以指定为: WAVE_MAPPER, 这样函数会根据给定的波形格式选择合适的设备}
//lpFormat: PWaveFormatEx; {TWaveFormat 结构的指针; TWaveFormat 包含要申请的波形格式}
//dwCallback: DWORD {回调函数地址或窗口句柄; 若不使用回调机制, 设为 nil}
//dwInstance: DWORD {给回调函数的实例数据; 不用于窗口}
//dwFlags: DWORD {打开选项}
if(waveOutOpen(&m_hWaveOut, WAVE_MAPPER, &m_wavformex, (DWORD_PTR)callback_waveOutProc, (DWORD)this, CALLBACK_FUNCTION) != MMSYSERR_NOERROR)
{
//TRACE_ERR2("wave设备打开失败～");
return false;
}
m_bPalyState = true;
_nWaveCurrentBlock = 0;
return true;
}
bool QAudioInputPrivate::open()
{
#ifdef DEBUG_AUDIO
QTime now(QTime::currentTime());
qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
#endif
header = 0;
if(buffer_size == 0) {
// Default buffer size, 200ms, default period size is 40ms
buffer_size = settings.frequency()*settings.channels()*(settings.sampleSize()/8)*0.2;
period_size = buffer_size/5;
} else {
period_size = buffer_size/5;
}
#ifdef Q_OS_WINCE
// For wince reduce size to 40ms for buffer size and 20ms period
buffer_size = settings.sampleRate()*settings.channelCount()*(settings.sampleSize()/8)*0.04;
period_size = buffer_size/2;
#endif
timeStamp.restart();
elapsedTimeOffset = 0;
wfx.nSamplesPerSec = settings.frequency();
wfx.wBitsPerSample = settings.sampleSize();
wfx.nChannels = settings.channels();
wfx.cbSize = 0;
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nBlockAlign = (wfx.wBitsPerSample >> 3) * wfx.nChannels;
wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
UINT_PTR devId = WAVE_MAPPER;
WAVEINCAPS wic;
unsigned long iNumDevs,ii;
iNumDevs = waveInGetNumDevs();
for(ii=0; ii<iNumDevs; ii++) {
if(waveInGetDevCaps(ii, &wic, sizeof(WAVEINCAPS))
== MMSYSERR_NOERROR) {
QString tmp;
tmp = QString::fromWCharArray(wic.szPname);
if(tmp.compare(QLatin1String(m_device)) == 0) {
devId = ii;
break;
}
}
}
if(waveInOpen(&hWaveIn, devId, &wfx,
(DWORD_PTR)&waveInProc,
(DWORD_PTR) this,
CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioInput: failed to open audio device");
return false;
}
waveBlocks = allocateBlocks(period_size, buffer_size/period_size);
if(waveBlocks == 0) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioInput: failed to allocate blocks. open failed");
return false;
}
mutex.lock();
waveFreeBlockCount = buffer_size/period_size;
mutex.unlock();
waveCurrentBlock = 0;
for(int i=0; i<buffer_size/period_size; i++) {
result = waveInAddBuffer(hWaveIn, &waveBlocks[i], sizeof(WAVEHDR));
if(result != MMSYSERR_NOERROR) {
qWarning("QAudioInput: failed to setup block %d,err=%d",i,result);
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
return false;
}
}
result = waveInStart(hWaveIn);
if(result) {
qWarning("QAudioInput: failed to start audio input");
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
return false;
}
timeStampOpened.restart();
elapsedTimeOffset = 0;
totalTimeValue = 0;
errorState = QAudio::NoError;
return true;
}
void UDPread(UDPinfo *UI, int filesize)
{
WSABUF UDPread;
int bytesRecv = 0;
DWORD flags = 0;
int err;
WAVEHDR* waveBlocks;
FILE *fp;
WAVEFORMATEX wfx;
wavheader WH;
HWAVEOUT hWaveOut;
char data[BUFSIZE];
int i = 0;
UDPread.buf = (char *) malloc (BUFSIZE);
UDPread.len = BUFSIZE;
waveBlocks = allocateBlocks(BLOCK_SIZE, BLOCK_COUNT);
waveFreeBlockCount = BLOCK_COUNT;
waveCurrentBlock = 0;
InitializeCriticalSection(&waveCriticalSection);
fp = wavOpen(&WH);
wfx.nSamplesPerSec = WH.sampleRate;
wfx.wBitsPerSample = 16;
wfx.nChannels = 2;
wfx.cbSize = 0;
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nBlockAlign = (wfx.wBitsPerSample * wfx.nChannels) >> 3;
wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
if((err = waveOutOpen(&hWaveOut, WAVE_MAPPER, &wfx,(DWORD_PTR)waveOutProc, (DWORD_PTR)&waveFreeBlockCount, CALLBACK_FUNCTION)) != MMSYSERR_NOERROR)
{
fprintf(stdout, "unable to open wave mapper device");
fprintf(stdout, "%d", err);
ExitProcess(1);
}
while(bytesRecv < filesize)
{
if(recvfrom(UI->sd, UDPread.buf, BUFSIZE, flags,NULL,NULL) == SOCKET_ERROR)
{
err = WSAGetLastError();
if(err != ERROR_IO_PENDING)
{
// error during read
}
}
memcpy(data,UDPread.buf, BUFSIZE);
writeAudio(hWaveOut, data, BUFSIZE, waveBlocks, waveCriticalSection);
bytesRecv += BUFSIZE;
}
/*
* unprepare any blocks that are still prepared
*/
for(i = 0; i < waveFreeBlockCount; i++)
{
if(waveBlocks[i].dwFlags & WHDR_PREPARED)
{
waveOutUnprepareHeader(hWaveOut, &waveBlocks[i], sizeof(WAVEHDR));
}
}
DeleteCriticalSection(&waveCriticalSection);
freeBlocks(waveBlocks);
waveOutClose(hWaveOut);
}
/*-----------------------------------------------------------------------------
-- FUNCTION: receiveStream
--
-- DATE: 2009-04-06
--
-- REVISIONS: 2009-04-06 - Jaymz, Took out the TCP connection stuff since
-- we already have that at this point. Also added
-- a parameter WPARAM sd, which is the socket
-- from which we are receiving the data.
-- - Jaymz, Miscellaneous code touch-ups (mainly
-- formatting and removing of test printf()'s)
--
-- DESIGNER(S): David Overton
-- PROGRAMMER(S): David Overton, Jaymz Boilard, Steffen L. Norgren
--
-- INTERFACE: receiveStream(LPVOID iValue)
--
-- RETURNS: void
--
-- NOTES: The main function to receive a UDP stream of data and process
-- that information.
-----------------------------------------------------------------------------*/
DWORD WINAPI receiveStream(LPVOID iValue)
{
WAVEFORMATEX wfx;
char buffer[BLOCK_SIZE]; /* intermediate buffer for reading */
int i, n, remote_len;
DWORD outBytes = 0;
char * play_byte = "1";
BOOL firstRun = TRUE;
remote_len = sizeof(udp_remote);
/* initialise the module variables */
waveBlocks = allocateBlocks(BLOCK_SIZE, BLOCK_COUNT);
waveFreeBlockCount = BLOCK_COUNT;
waveCurrentBlock = 0;
InitializeCriticalSection(&waveCriticalSection);
/* playback loop - read from socket */
while (TRUE)
{
if (ci.request != MULTI_STREAM) {
/* send play signal */
sendto(ci.udpSocket, play_byte, sizeof(play_byte), 0, (struct sockaddr *)&udp_remote, remote_len);
}
if ((n = recvfrom(ci.udpSocket, buffer, sizeof(buffer), 0, (struct sockaddr *)&udp_remote, &remote_len)) <= 0)
{
waveOutClose(hWaveOut);
ExitThread(0);
}
/* first 4 bytes in a file, so set the header information */
if(strncmp(buffer, "RIFF", 4) == 0)
{
memcpy(&wfx, buffer+20, sizeof(wfx));
if (ci.request != MULTI_STREAM || firstRun == TRUE) {
waveOutClose(hWaveOut);
if(waveOutOpen(&hWaveOut, WAVE_MAPPER, &wfx, (DWORD_PTR)waveOutProc,
(DWORD_PTR)&waveFreeBlockCount, CALLBACK_FUNCTION) != MMSYSERR_NOERROR)
{
MessageBox(NULL, "Unable to open mapper device.", "Error", MB_OK);
ExitProcess(1);
}
firstRun = FALSE;
}
}
if(n == 0)
break;
else if(n < sizeof(buffer) && n != WAVE_HEAD_SIZE)
{
memset(buffer + n, 0, sizeof(buffer) - n);
writeAudio(buffer, n);
break;
}
writeAudio(buffer, n);
}
/* wait for all blocks to complete */
while(waveFreeBlockCount < BLOCK_COUNT)
Sleep(10);
/* unprepare any blocks that are still prepared */
for(i = 0; i < waveFreeBlockCount; i++)
{
if(waveBlocks[i].dwFlags & WHDR_PREPARED)
waveOutUnprepareHeader(hWaveOut, &waveBlocks[i], sizeof(WAVEHDR));
}
DeleteCriticalSection(&waveCriticalSection);
freeBlocks(waveBlocks);
waveOutClose(hWaveOut);
streamInProgress = FALSE;
ExitThread(0);
}
MultiContainerBlock3D::MultiContainerBlock3D(MultiContainerBlock3D const& rhs)
: MultiBlock3D(rhs)
{
allocateBlocks();
}
bool QAudioOutputPrivate::open()
{
#ifdef DEBUG_AUDIO
QTime now(QTime::currentTime());
qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
#endif
if (!(settings.frequency() >= 8000 && settings.frequency() <= 48000)) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioOutput: open error, frequency out of range.");
return false;
}
if(buffer_size == 0) {
// Default buffer size, 200ms, default period size is 40ms
buffer_size = settings.frequency()*settings.channels()*(settings.sampleSize()/8)*0.2;
period_size = buffer_size/5;
} else {
period_size = buffer_size/5;
}
waveBlocks = allocateBlocks(period_size, buffer_size/period_size);
EnterCriticalSection(&waveOutCriticalSection);
waveFreeBlockCount = buffer_size/period_size;
LeaveCriticalSection(&waveOutCriticalSection);
waveCurrentBlock = 0;
if(audioBuffer == 0)
audioBuffer = new char[buffer_size];
timeStamp.restart();
elapsedTimeOffset = 0;
wfx.nSamplesPerSec = settings.frequency();
wfx.wBitsPerSample = settings.sampleSize();
wfx.nChannels = settings.channels();
wfx.cbSize = 0;
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nBlockAlign = (wfx.wBitsPerSample >> 3) * wfx.nChannels;
wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
UINT_PTR devId = WAVE_MAPPER;
WAVEOUTCAPS woc;
unsigned long iNumDevs,ii;
iNumDevs = waveOutGetNumDevs();
for(ii=0;ii<iNumDevs;ii++) {
if(waveOutGetDevCaps(ii, &woc, sizeof(WAVEOUTCAPS))
== MMSYSERR_NOERROR) {
QString tmp;
tmp = QString((const QChar *)woc.szPname);
if(tmp.compare(QLatin1String(m_device)) == 0) {
devId = ii;
break;
}
}
}
if(waveOutOpen(&hWaveOut, devId, &wfx,
(DWORD_PTR)&waveOutProc,
(DWORD_PTR) this,
CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioOutput: open error");
return false;
}
totalTimeValue = 0;
timeStampOpened.restart();
elapsedTimeOffset = 0;
errorState = QAudio::NoError;
if(pullMode) {
deviceState = QAudio::ActiveState;
QTimer::singleShot(10, this, SLOT(feedback()));
} else
deviceState = QAudio::IdleState;
return true;
}
bool QAudioOutputPrivate::open()
{
#ifdef DEBUG_AUDIO
QTime now(QTime::currentTime());
qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
#endif
period_size = 0;
if (!settings.isValid()) {
qWarning("QAudioOutput: open error, invalid format.");
} else if (settings.channels() <= 0) {
qWarning("QAudioOutput: open error, invalid number of channels (%d).",
settings.channels());
} else if (settings.sampleSize() <= 0) {
qWarning("QAudioOutput: open error, invalid sample size (%d).",
settings.sampleSize());
} else if (settings.frequency() < 8000 || settings.frequency() > 48000) {
qWarning("QAudioOutput: open error, frequency out of range (%d).", settings.frequency());
} else if (buffer_size == 0) {
// Default buffer size, 200ms, default period size is 40ms
buffer_size
= (settings.frequency()
* settings.channels()
* settings.sampleSize()
+ 39) / 40;
period_size = buffer_size / 5;
} else {
period_size = buffer_size / 5;
}
if (period_size == 0) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
return false;
}
waveBlocks = allocateBlocks(period_size, buffer_size/period_size);
mutex.lock();
waveFreeBlockCount = buffer_size/period_size;
mutex.unlock();
waveCurrentBlock = 0;
if(audioBuffer == 0)
audioBuffer = new char[buffer_size];
timeStamp.restart();
elapsedTimeOffset = 0;
wfx.nSamplesPerSec = settings.frequency();
wfx.wBitsPerSample = settings.sampleSize();
wfx.nChannels = settings.channels();
wfx.cbSize = 0;
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nBlockAlign = (wfx.wBitsPerSample >> 3) * wfx.nChannels;
wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
UINT_PTR devId = WAVE_MAPPER;
WAVEOUTCAPS woc;
unsigned long iNumDevs,ii;
iNumDevs = waveOutGetNumDevs();
for(ii=0;ii<iNumDevs;ii++) {
if(waveOutGetDevCaps(ii, &woc, sizeof(WAVEOUTCAPS))
== MMSYSERR_NOERROR) {
QString tmp;
tmp = QString((const QChar *)woc.szPname);
if(tmp.compare(QLatin1String(m_device)) == 0) {
devId = ii;
break;
}
}
}
if ( settings.channels() <= 2) {
if(waveOutOpen(&hWaveOut, devId, &wfx,
(DWORD_PTR)&waveOutProc,
(DWORD_PTR) this,
CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioOutput: open error");
return false;
}
} else {
WAVEFORMATEXTENSIBLE wfex;
wfex.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfex.Format.nChannels = settings.channels();
wfex.Format.wBitsPerSample = settings.sampleSize();
wfex.Format.nSamplesPerSec = settings.frequency();
wfex.Format.nBlockAlign = wfex.Format.nChannels*wfex.Format.wBitsPerSample/8;
wfex.Format.nAvgBytesPerSec=wfex.Format.nSamplesPerSec*wfex.Format.nBlockAlign;
wfex.Samples.wValidBitsPerSample=wfex.Format.wBitsPerSample;
static const GUID _KSDATAFORMAT_SUBTYPE_PCM = {
0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
wfex.SubFormat=_KSDATAFORMAT_SUBTYPE_PCM;
wfex.Format.cbSize=22;
wfex.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
if (settings.channels() >= 4)
wfex.dwChannelMask |= SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
if (settings.channels() >= 6)
wfex.dwChannelMask |= SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY;
if (settings.channels() == 8)
wfex.dwChannelMask |= SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT;
if(waveOutOpen(&hWaveOut, devId, &wfex.Format,
(DWORD_PTR)&waveOutProc,
(DWORD_PTR) this,
CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioOutput: open error");
return false;
}
}
totalTimeValue = 0;
timeStampOpened.restart();
elapsedTimeOffset = 0;
errorState = QAudio::NoError;
if(pullMode) {
deviceState = QAudio::ActiveState;
QTimer::singleShot(10, this, SLOT(feedback()));
} else
deviceState = QAudio::IdleState;
return true;
}
bool QAudioOutputPrivate::open()
{
#ifdef DEBUG_AUDIO
QTime now(QTime::currentTime());
qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()";
#endif
period_size = 0;
if (!settings.isValid()) {
qWarning("QAudioOutput: open error, invalid format.");
} else if (settings.channelCount() <= 0) {
qWarning("QAudioOutput: open error, invalid number of channels (%d).",
settings.channelCount());
} else if (settings.sampleSize() <= 0) {
qWarning("QAudioOutput: open error, invalid sample size (%d).",
settings.sampleSize());
} else if (settings.frequency() < 8000 || settings.frequency() > 96000) {
qWarning("QAudioOutput: open error, frequency out of range (%d).", settings.frequency());
} else if (buffer_size == 0) {
// Default buffer size, 200ms, default period size is 40ms
buffer_size
= (settings.frequency()
* settings.channelCount()
* settings.sampleSize()
+ 39) / 40;
period_size = buffer_size / 5;
} else {
period_size = buffer_size / 5;
}
if (period_size == 0) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
return false;
}
waveBlocks = allocateBlocks(period_size, buffer_size/period_size);
mutex.lock();
waveFreeBlockCount = buffer_size/period_size;
mutex.unlock();
waveCurrentBlock = 0;
if(audioBuffer == 0)
audioBuffer = new char[buffer_size];
timeStamp.restart();
elapsedTimeOffset = 0;
wfx.nSamplesPerSec = settings.frequency();
wfx.wBitsPerSample = settings.sampleSize();
wfx.nChannels = settings.channels();
wfx.cbSize = 0;
bool surround = false;
if (settings.channels() > 2)
surround = true;
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.nBlockAlign = (wfx.wBitsPerSample >> 3) * wfx.nChannels;
wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec;
QDataStream ds(&m_device, QIODevice::ReadOnly);
quint32 deviceId;
ds >> deviceId;
if (!surround) {
if (waveOutOpen(&hWaveOut, UINT_PTR(deviceId), &wfx,
(DWORD_PTR)&waveOutProc,
(DWORD_PTR) this,
CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioOutput: open error");
return false;
}
} else {
WAVEFORMATEXTENSIBLE wfex;
wfex.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfex.Format.nChannels = settings.channels();
wfex.Format.wBitsPerSample = settings.sampleSize();
wfex.Format.nSamplesPerSec = settings.frequency();
wfex.Format.nBlockAlign = wfex.Format.nChannels*wfex.Format.wBitsPerSample/8;
wfex.Format.nAvgBytesPerSec=wfex.Format.nSamplesPerSec*wfex.Format.nBlockAlign;
wfex.Samples.wValidBitsPerSample=wfex.Format.wBitsPerSample;
static const GUID _KSDATAFORMAT_SUBTYPE_PCM = {
0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
wfex.SubFormat=_KSDATAFORMAT_SUBTYPE_PCM;
wfex.Format.cbSize=22;
wfex.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
if (settings.channels() >= 4)
wfex.dwChannelMask |= SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
if (settings.channels() >= 6)
wfex.dwChannelMask |= SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY;
if (settings.channels() == 8)
wfex.dwChannelMask |= SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT;
if (waveOutOpen(&hWaveOut, UINT_PTR(deviceId), &wfex.Format,
(DWORD_PTR)&waveOutProc,
(DWORD_PTR) this,
CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
errorState = QAudio::OpenError;
deviceState = QAudio::StoppedState;
emit stateChanged(deviceState);
qWarning("QAudioOutput: open error");
return false;
}
}
totalTimeValue = 0;
timeStampOpened.restart();
elapsedTimeOffset = 0;
errorState = QAudio::NoError;
if(pullMode) {
deviceState = QAudio::ActiveState;
QTimer::singleShot(10, this, SLOT(feedback()));
} else
deviceState = QAudio::IdleState;
return true;
}