void DeviceSource::Preprocess()
{
if(!bCapturing)
return;
//----------------------------------------
if(bRequestVolume)
{
if(audioOut)
audioOut->SetVolume(fNewVol);
else if(audioFilter)
{
IBasicAudio *basicAudio;
if(SUCCEEDED(audioFilter->QueryInterface(IID_IBasicAudio, (void**)&basicAudio)))
{
long lVol = long((double(fNewVol)*NEAR_SILENTf)-NEAR_SILENTf);
if(lVol <= -NEAR_SILENT)
lVol = -10000;
basicAudio->put_Volume(lVol);
basicAudio->Release();
}
}
bRequestVolume = false;
}
//----------------------------------------
SampleData *lastSample = NULL;
OSEnterMutex(hSampleMutex);
lastSample = latestVideoSample;
latestVideoSample = NULL;
OSLeaveMutex(hSampleMutex);
//----------------------------------------
int numThreads = MAX(OSGetTotalCores()-2, 1);
if(lastSample)
{
/*REFERENCE_TIME refTimeStart, refTimeFinish;
lastSample->GetTime(&refTimeStart, &refTimeFinish);
static REFERENCE_TIME lastRefTime = 0;
//Log(TEXT("refTimeStart: %llu, refTimeFinish: %llu, offset = %llu"), refTimeStart, refTimeFinish, refTimeStart-lastRefTime);
lastRefTime = refTimeStart;*/
lastSample->Release();
}
}
DWORD DeviceSource::SampleThread(DeviceSource *source)
{
HANDLE hSampleMutex = source->hSampleMutex;
LONGLONG lastTime = GetQPCTime100NS(), bufferTime = 0, frameWait = 0, curBufferTime = source->bufferTime;
LONGLONG lastSampleTime = 0;
bool bFirstFrame = true;
bool bFirstDelay = true;
while (WaitForSingleObject(source->hStopSampleEvent, 2) == WAIT_TIMEOUT) {
LONGLONG t = GetQPCTime100NS();
LONGLONG delta = t-lastTime;
lastTime = t;
OSEnterMutex(hSampleMutex);
if (source->samples.Num()) {
if (bFirstFrame) {
bFirstFrame = false;
lastSampleTime = source->samples[0]->timestamp;
}
//wait until the requested delay has been buffered before processing packets
if (bufferTime >= source->bufferTime) {
frameWait += delta;
//if delay time was adjusted downward, remove packets accordingly
bool bBufferTimeChanged = (curBufferTime != source->bufferTime);
if (bBufferTimeChanged) {
if (curBufferTime > source->bufferTime) {
if (source->audioOut)
source->audioOut->FlushSamples();
LONGLONG lostTime = curBufferTime - source->bufferTime;
bufferTime -= lostTime;
if (source->samples.Num()) {
LONGLONG startTime = source->samples[0]->timestamp;
while (source->samples.Num()) {
SampleData *sample = source->samples[0];
if ((sample->timestamp - startTime) >= lostTime)
break;
lastSampleTime = sample->timestamp;
sample->Release();
source->samples.Remove(0);
}
}
}
curBufferTime = source->bufferTime;
}
while (source->samples.Num()) {
SampleData *sample = source->samples[0];
LONGLONG timestamp = sample->timestamp;
LONGLONG sampleTime = timestamp - lastSampleTime;
//sometimes timestamps can go to shit with horrible garbage devices.
//so, bypass any unusual timestamp offsets.
if (sampleTime < -6000000 || sampleTime > 6000000) {
//OSDebugOut(TEXT("sample time: %lld\r\n"), sampleTime);
sampleTime = 0;
}
if (frameWait < sampleTime)
break;
if (sample->bAudio) {
if (source->audioOut)
source->audioOut->ReceiveAudio(sample->lpData, sample->dataLength);
sample->Release();
} else {
SafeRelease(source->latestVideoSample);
source->latestVideoSample = sample;
}
source->samples.Remove(0);
if (sampleTime > 0)
frameWait -= sampleTime;
lastSampleTime = timestamp;
}
}
}
OSLeaveMutex(hSampleMutex);
if (!bFirstFrame && bufferTime < source->bufferTime)
bufferTime += delta;
}
return 0;
}
void DeviceSource::Preprocess()
{
if(!bCapturing)
return;
//----------------------------------------
if(bRequestVolume)
{
if(audioOut)
audioOut->SetVolume(fNewVol);
else if(audioFilter)
{
IBasicAudio *basicAudio;
if(SUCCEEDED(audioFilter->QueryInterface(IID_IBasicAudio, (void**)&basicAudio)))
{
long lVol = long((double(fNewVol)*NEAR_SILENTf)-NEAR_SILENTf);
if(lVol <= -NEAR_SILENT)
lVol = -10000;
basicAudio->put_Volume(lVol);
basicAudio->Release();
}
}
bRequestVolume = false;
}
//----------------------------------------
SampleData *lastSample = NULL;
OSEnterMutex(hSampleMutex);
lastSample = latestVideoSample;
latestVideoSample = NULL;
OSLeaveMutex(hSampleMutex);
//----------------------------------------
int numThreads = MAX(OSGetTotalCores()-2, 1);
if(lastSample)
{
/*REFERENCE_TIME refTimeStart, refTimeFinish;
lastSample->GetTime(&refTimeStart, &refTimeFinish);
static REFERENCE_TIME lastRefTime = 0;
Log(TEXT("refTimeStart: %llu, refTimeFinish: %llu, offset = %llu"), refTimeStart, refTimeFinish, refTimeStart-lastRefTime);
lastRefTime = refTimeStart;*/
if(colorType == DeviceOutputType_RGB)
{
if(texture)
{
texture->SetImage(lastSample->lpData, GS_IMAGEFORMAT_BGRX, renderCX*4);
bReadyToDraw = true;
}
}
else if(colorType == DeviceOutputType_I420 || colorType == DeviceOutputType_YV12)
{
if(bUseThreadedConversion)
{
if(!bFirstFrame)
{
List<HANDLE> events;
for(int i=0; i<numThreads; i++)
events << convertData[i].hSignalComplete;
WaitForMultipleObjects(numThreads, events.Array(), TRUE, INFINITE);
texture->SetImage(lpImageBuffer, GS_IMAGEFORMAT_RGBX, texturePitch);
bReadyToDraw = true;
}
else
bFirstFrame = false;
for(int i=0; i<numThreads; i++)
lastSample->AddRef();
for(int i=0; i<numThreads; i++)
{
convertData[i].input = lastSample->lpData;
convertData[i].sample = lastSample;
convertData[i].pitch = texturePitch;
convertData[i].output = lpImageBuffer;
SetEvent(convertData[i].hSignalConvert);
}
}
else
{
LPBYTE lpData;
UINT pitch;
if(texture->Map(lpData, pitch))
{
PackPlanar(lpData, lastSample->lpData, renderCX, renderCY, pitch, 0, renderCY);
texture->Unmap();
}
bReadyToDraw = true;
}
}
else if(colorType == DeviceOutputType_YVYU || colorType == DeviceOutputType_YUY2)
{
LPBYTE lpData;
UINT pitch;
if(texture->Map(lpData, pitch))
{
Convert422To444(lpData, lastSample->lpData, pitch, true);
texture->Unmap();
}
bReadyToDraw = true;
}
else if(colorType == DeviceOutputType_UYVY || colorType == DeviceOutputType_HDYC)
{
LPBYTE lpData;
UINT pitch;
if(texture->Map(lpData, pitch))
{
Convert422To444(lpData, lastSample->lpData, pitch, false);
texture->Unmap();
}
bReadyToDraw = true;
}
lastSample->Release();
}
}