static DWORD WINAPI ReadThread(LPVOID lParam)
{
Capture * capBox = lParam;
HRESULT hr;
IMediaSample *pSample = NULL;
unsigned long framecount = 0;
unsigned char *pTarget, *pInput, *pOutput;
hr = V4l_Prepare(capBox);
if (FAILED(hr))
goto fail;
pOutput = CoTaskMemAlloc(capBox->width * capBox->height * capBox->bitDepth / 8);
capBox->curframe = 0;
do {
V4l_FreeFrame(capBox);
} while (capBox->curframe != 0);
while (1)
{
EnterCriticalSection(&capBox->CritSect);
if (capBox->stopped)
break;
hr = OutputPin_GetDeliveryBuffer((OutputPin *)capBox->pOut, &pSample, NULL, NULL, 0);
if (SUCCEEDED(hr))
{
int len;
if (!capBox->swresize)
len = capBox->height * capBox->width * capBox->bitDepth / 8;
else
len = capBox->outputheight * capBox->outputwidth * capBox->bitDepth / 8;
IMediaSample_SetActualDataLength(pSample, len);
len = IMediaSample_GetActualDataLength(pSample);
TRACE("Data length: %d KB\n", len / 1024);
IMediaSample_GetPointer(pSample, &pTarget);
/* FIXME: Check return values.. */
V4l_GetFrame(capBox, &pInput);
capBox->renderer(capBox, pOutput, pInput);
Resize(capBox, pTarget, pOutput);
hr = OutputPin_SendSample((OutputPin *)capBox->pOut, pSample);
TRACE("%p -> Frame %lu: %x\n", capBox, ++framecount, hr);
IMediaSample_Release(pSample);
V4l_FreeFrame(capBox);
}
LeaveCriticalSection(&capBox->CritSect);
if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
{
ERR("Received error: %x\n", hr);
goto cfail;
}
}
LeaveCriticalSection(&capBox->CritSect);
CoTaskMemFree(pOutput);
return 0;
cfail:
CoTaskMemFree(pOutput);
V4l_Unprepare(capBox);
LeaveCriticalSection(&capBox->CritSect);
fail:
capBox->thread = 0; capBox->stopped = 1;
FIXME("Stop IFilterGraph\n");
return 0;
}
