Maarten Lankhorst wrote:
HRESULT Capture_Run(CaptureBox * capBox, FILTER_STATE *state)
{
HRESULT hr;
IMediaSample *pSample = NULL;
LPBYTE pointer;
hr = OutputPin_GetDeliveryBuffer((OutputPin *)capBox->pOut, &pSample, NULL, NULL, 0);
TRACE("Meat 1: %lx - %p\n", hr, pSample);
hr = IMediaSample_GetPointer(pSample, &pointer);
TRACE("Meat 2\n");
IMediaSample_SetActualDataLength(pSample, 320*240*3);
TRACE("Meat 3\n");
ZeroMemory(pointer, 320*240*3);
TRACE("Meat 4\n");
OutputPin_SendSample((OutputPin *)capBox->pOut, pSample);
FIXME("%p -> (%p) stub\n", capBox, state);
return S_OK;
}
I get E_VFW_NOT_COMMITTED after trying GetDeliveryBuffer, what's the cause?
This error is due to a memory allocator needing to be committed before it can be used (see dlls/quartz/memallocator.c). You should call IMemAllocator_Commit in the Run implementation of your filter and then push one sample downstream. IIRC, you should also call IMemAllocator_Decommit in the Stop implementation of your filter, but this isn't done for the implementation I referred to (dlls/quartz/transform.c).
Rob
