void PortAudioInput::run() {
PaStream *inputStream = 0;
PaError err;
//qWarning() << "PortAudioInput::run() BEGIN ===";
if (!PortAudioSystem::initStream(&inputStream, g.s.iPortAudioInput, iFrameSize, reinterpret_cast<int *>(&iMicChannels), true))
return; // PA init or stream opening failed, we will give up
iMicFreq = SAMPLE_RATE;
eMicFormat = SampleShort;
initializeMixer();
short inBuffer[iMicLength * iMicChannels];
// depend on the stream having started
bRunning = PortAudioSystem::startStream(inputStream);
while (bRunning) {
err = Pa_ReadStream(inputStream, inBuffer, iMicLength);
if (err == paNoError) {
addMic(inBuffer, iMicLength);
} else if (err == paInputOverflowed) {
qWarning("PortAudioInput: Overflow on PortAudio input-stream, we lost incoming data!");
} else { // other error, aborg
qWarning("PortAudioInput: Could not read from PortAudio stream, error %s", Pa_GetErrorText(err));
bRunning = false;
}
}
// ignoring return value on purpose, we cannot do anything about it anyway
PortAudioSystem::stopStream(inputStream);
// ignoring return value on purpose, we cannot do anything about it anyway
PortAudioSystem::terminateStream(inputStream);
inputStream = 0; // just for gdb sessions ;)
}
//TODO: redo this without busy waiting if possible
void PortAudioOutput::run() {
PaStream *outputStream = 0;
PaError err = paNoError;
int chans = 0;
bool zero = true;
if (!PortAudioSystem::initStream(&outputStream, g.s.iPortAudioOutput, iFrameSize, &chans, false))
return; // PA initialization or stream opening failed, we will give up
const unsigned int cmask[2] = {
SPEAKER_FRONT_LEFT,
SPEAKER_FRONT_RIGHT
};
iChannels = chans;
iMixerFreq = SAMPLE_RATE;
eSampleFormat = SampleShort;
initializeMixer(cmask);
short outBuffer[iFrameSize * iChannels];
while (bRunning) {
bool avail = true;
if (zero)
memset(outBuffer, 0, sizeof(short) * iFrameSize * iChannels);
else
avail = mix(outBuffer, iFrameSize);
if (avail) {
if (! PortAudioSystem::startStream(outputStream)) {
bRunning = false;
break;
}
err = Pa_WriteStream(outputStream, outBuffer, iFrameSize);
if (err == paOutputUnderflowed) {
qWarning("PortAudioOutput: Output underflowed. Attempting graceful recovery.");
zero = true;
continue;
} else if (err != paNoError) {
qWarning("PortAudioOutput: Could not write to PortAudio stream, error %s", Pa_GetErrorText(err));
bRunning = false;
}
} else {
if (! PortAudioSystem::stopStream(outputStream))
bRunning = false;
this->msleep(20);
}
zero = false;
}
PortAudioSystem::terminateStream(outputStream);
outputStream = NULL; // just for gdb sessions
}
void DXAudioOutput::run() {
HRESULT hr;
DSBUFFERDESC dsbdesc;
WAVEFORMATEXTENSIBLE wfx;
WAVEFORMATEXTENSIBLE wfxSet;
int ns = 0;
unsigned int chanmasks[32];
LPDIRECTSOUND8 pDS = NULL;
LPDIRECTSOUNDBUFFER pDSBPrimary = NULL;
LPDIRECTSOUNDBUFFER pDSBOutput = NULL;
LPDIRECTSOUNDNOTIFY8 pDSNotify = NULL;
DWORD dwBufferSize;
DWORD dwLastWritePos;
DWORD dwLastPlayPos;
DWORD dwTotalPlayPos;
int iLastwriteblock;
LPVOID aptr1, aptr2;
DWORD nbytes1, nbytes2;
int playblock;
int nowriteblock;
DWORD dwPlayPosition, dwWritePosition;
unsigned int iByteSize;
bool bOk;
DWORD dwSpeakerConfig;
bool failed = false;
bOk = false;
DWORD dwMask = 0;
bool bHead = false;
ZeroMemory(&dsbdesc, sizeof(DSBUFFERDESC));
dsbdesc.dwSize = sizeof(DSBUFFERDESC);
dsbdesc.dwFlags = DSBCAPS_PRIMARYBUFFER;
if (! g.s.qbaDXOutput.isEmpty()) {
LPGUID lpguid = reinterpret_cast<LPGUID>(g.s.qbaDXOutput.data());
if (FAILED(hr = DirectSoundCreate8(lpguid, &pDS, NULL))) {
failed = true;
}
}
if (! pDS && FAILED(hr = DirectSoundCreate8(&DSDEVID_DefaultVoicePlayback, &pDS, NULL))) {
qWarning("DXAudioOutput: DirectSoundCreate failed: hr=0x%08lx", hr);
goto cleanup;
} else if (FAILED(hr = pDS->SetCooperativeLevel(g.mw->winId(), DSSCL_PRIORITY))) {
qWarning("DXAudioOutput: SetCooperativeLevel failed: hr=0x%08lx", hr);
goto cleanup;
} else if (FAILED(hr = pDS->CreateSoundBuffer(&dsbdesc, &pDSBPrimary, NULL))) {
qWarning("DXAudioOutput: CreateSoundBuffer (Primary) failed: hr=0x%08lx", hr);
goto cleanup;
}
pDS->GetSpeakerConfig(&dwSpeakerConfig);
switch (DSSPEAKER_CONFIG(dwSpeakerConfig)) {
case DSSPEAKER_HEADPHONE:
dwMask = KSAUDIO_SPEAKER_STEREO;
bHead = true;
break;
case DSSPEAKER_MONO:
dwMask = KSAUDIO_SPEAKER_MONO;
break;
case DSSPEAKER_QUAD:
dwMask = KSAUDIO_SPEAKER_QUAD;
break;
case DSSPEAKER_STEREO:
dwMask = KSAUDIO_SPEAKER_STEREO;
break;
case DSSPEAKER_SURROUND:
dwMask = KSAUDIO_SPEAKER_SURROUND;
break;
case DSSPEAKER_5POINT1:
dwMask = KSAUDIO_SPEAKER_5POINT1;
break;
case DSSPEAKER_7POINT1:
dwMask = KSAUDIO_SPEAKER_7POINT1;
break;
case DSSPEAKER_7POINT1_SURROUND:
dwMask = KSAUDIO_SPEAKER_7POINT1_SURROUND;
break;
case DSSPEAKER_5POINT1_SURROUND:
dwMask = KSAUDIO_SPEAKER_5POINT1_SURROUND;
break;
default:
dwMask = 0;
break;
}
if (! g.s.doPositionalAudio())
dwMask = KSAUDIO_SPEAKER_MONO;
for (int i=0;i<32;i++) {
if (dwMask & (1 << i)) {
chanmasks[ns++] = 1 << i;
}
}
iMixerFreq = SAMPLE_RATE;
iChannels = ns;
eSampleFormat = SampleShort;
iByteSize = iFrameSize * sizeof(short) * ns;
ZeroMemory(&wfxSet, sizeof(wfxSet));
wfxSet.Format.wFormatTag = WAVE_FORMAT_PCM;
ZeroMemory(&wfx, sizeof(wfx));
wfx.Format.wFormatTag = WAVE_FORMAT_PCM;
wfx.Format.nChannels = qMax(ns, 1);
wfx.Format.nSamplesPerSec = SAMPLE_RATE;
wfx.Format.nBlockAlign = sizeof(short) * wfx.Format.nChannels;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.wBitsPerSample = 16;
if (FAILED(hr = pDSBPrimary->SetFormat(reinterpret_cast<WAVEFORMATEX *>(&wfx)))) {
qWarning("DXAudioOutput: SetFormat failed: hr=0x%08lx", hr);
goto cleanup;
}
if (FAILED(hr = pDSBPrimary->GetFormat(reinterpret_cast<WAVEFORMATEX *>(&wfxSet), sizeof(wfxSet), NULL))) {
qWarning("DXAudioOutput: GetFormat failed: hr=0x%08lx", hr);
goto cleanup;
}
qWarning("DXAudioOutput: Primary buffer of %ld Hz, %d channels, %d bits",wfxSet.Format.nSamplesPerSec,wfxSet.Format.nChannels,wfxSet.Format.wBitsPerSample);
ZeroMemory(&wfx, sizeof(wfx));
wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
wfx.Format.nChannels = ns;
wfx.Format.nSamplesPerSec = SAMPLE_RATE;
wfx.Format.nBlockAlign = sizeof(short) * wfx.Format.nChannels;
wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
wfx.Format.wBitsPerSample = 16;
wfx.Format.cbSize = 32;
wfx.Samples.wValidBitsPerSample = wfx.Format.wBitsPerSample;
wfx.dwChannelMask = dwMask;
wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
ZeroMemory(&dsbdesc, sizeof(DSBUFFERDESC));
dsbdesc.dwSize = sizeof(DSBUFFERDESC);
dsbdesc.dwFlags = DSBCAPS_GLOBALFOCUS|DSBCAPS_GETCURRENTPOSITION2;
dsbdesc.dwFlags |= DSBCAPS_CTRLPOSITIONNOTIFY;
dsbdesc.dwBufferBytes = wfx.Format.nChannels * iFrameSize * sizeof(short) * NBLOCKS;
dsbdesc.lpwfxFormat = reinterpret_cast<WAVEFORMATEX *>(&wfx);
if (FAILED(hr = pDS->CreateSoundBuffer(&dsbdesc, &pDSBOutput, NULL))) {
qWarning("DXAudioOutputUser: CreateSoundBuffer (Secondary) failed: hr=0x%08lx", hr);
goto cleanup;
}
if (FAILED(hr = pDSBOutput->QueryInterface(IID_IDirectSoundNotify, reinterpret_cast<void **>(&pDSNotify)))) {
qWarning("DXAudioOutputUser: QueryInterface (Notify) failed: hr=0x%08lx", hr);
goto cleanup;
}
qWarning("DXAudioOutputUser: New %dHz output buffer of %ld bytes", SAMPLE_RATE, dsbdesc.dwBufferBytes);
if (failed)
g.mw->msgBox(tr("Opening chosen DirectSound Output failed. Default device will be used."));
initializeMixer(chanmasks, bHead);
if (FAILED(hr = pDSBOutput->Lock(0, 0, &aptr1, &nbytes1, &aptr2, &nbytes2, DSBLOCK_ENTIREBUFFER))) {
qWarning("DXAudioOutputUser: Initial Lock failed: hr=0x%08lx", hr);
goto cleanup;
}
dwBufferSize = nbytes1 + nbytes2;
if (aptr1)
ZeroMemory(aptr1, nbytes1);
if (aptr2)
ZeroMemory(aptr2, nbytes2);
if (FAILED(hr = pDSBOutput->Unlock(aptr1, nbytes1, aptr2, nbytes2))) {
qWarning("DXAudioOutputUser: Initial Unlock failed: hr=0x%08lx", hr);
goto cleanup;
}
if (FAILED(hr = pDSBOutput->Play(0, 0, DSBPLAY_LOOPING))) {
qWarning("DXAudioOutputUser: Play failed: hr=0x%08lx", hr);
goto cleanup;
}
dwLastWritePos = 0;
dwLastPlayPos = 0;
dwTotalPlayPos = 0;
iLastwriteblock = (NBLOCKS - 1 + g.s.iOutputDelay) % NBLOCKS;
bOk = true;
while (bRunning && ! FAILED(hr)) {
if (FAILED(hr = pDSBOutput->GetCurrentPosition(&dwPlayPosition, &dwWritePosition))) {
qWarning("DXAudioOutputUser: GetCurrentPosition failed: hr=0x%08lx", hr);
break;
}
playblock = dwWritePosition / iByteSize;
nowriteblock = (playblock + g.s.iOutputDelay + 1) % NBLOCKS;
for (int block=(iLastwriteblock + 1) % NBLOCKS;(!FAILED(hr)) && (block!=nowriteblock);block=(block + 1) % NBLOCKS) {
iLastwriteblock = block;
if (FAILED(hr = pDSBOutput->Lock(block * iByteSize, iByteSize, &aptr1, &nbytes1, &aptr2, &nbytes2, 0))) {
qWarning("DXAudioOutput: Lock block %u (%d bytes) failed: hr=0x%08lx",block, iByteSize, hr);
break;
}
if (aptr2 || nbytes2) {
qWarning("DXAudioOutput: Split buffer");
break;
}
if (!aptr1 || ! nbytes1) {
qWarning("DXAudioOutput: Zerolock");
break;
}
if (! mix(reinterpret_cast<short *>(aptr1), iFrameSize))
ZeroMemory(aptr1, iByteSize);
if (FAILED(hr = pDSBOutput->Unlock(aptr1, nbytes1, aptr2, nbytes2))) {
qWarning("DXAudioOutput: Unlock %p(%lu) %p(%lu) failed: hr=0x%08lx",aptr1,nbytes1,aptr2,nbytes2,hr);
break;
}
if (FAILED(hr = pDSBOutput->GetCurrentPosition(&dwPlayPosition, &dwWritePosition))) {
qWarning("DXAudioOutputUser: GetCurrentPosition failed: hr=0x%08lx", hr);
break;
}
playblock = dwWritePosition / iByteSize;
nowriteblock = (playblock + g.s.iOutputDelay + 1) % NBLOCKS;
}
if (! FAILED(hr))
msleep(19);
}
if (FAILED(hr)) {
g.mw->msgBox(tr("Lost DirectSound output device."));
}
cleanup:
if (! bOk) {
g.mw->msgBox(tr("Opening chosen DirectSound Output failed. No audio will be heard."));
return;
}
if (pDSNotify)
pDSNotify->Release();
if (pDSBOutput) {
pDSBOutput->Stop();
pDSBOutput->Release();
}
if (pDSBPrimary)
pDSBPrimary->Release();
if (pDS)
pDS->Release();
}
