{
    TransformFilterImpl *This = (TransformFilterImpl *)iface;
    ULONG refCount = InterlockedDecrement(&This->refCount);

    TRACE("(%p/%p)->() Release from %d\n", This, iface, refCount + 1);

    if (!refCount)
    {
        ULONG i;

        if (This->pClock)
            IReferenceClock_Release(This->pClock);

        for (i = 0; i < This->npins; i++)
        {
            IPin *pConnectedTo;

            if (SUCCEEDED(IPin_ConnectedTo(This->ppPins[i], &pConnectedTo)))
            {
                IPin_Disconnect(pConnectedTo);
                IPin_Release(pConnectedTo);
            }
            IPin_Disconnect(This->ppPins[i]);

            IPin_Release(This->ppPins[i]);
        }

        CoTaskMemFree(This->ppPins);
        This->lpVtbl = NULL;

        This->csFilter.DebugInfo->Spare[0] = 0;
        DeleteCriticalSection(&This->csFilter);

        TRACE("Destroying transform filter\n");
        FreeMediaType(&This->pmt);
        CoTaskMemFree(This);

        return 0;
    }
    else
        return refCount;
}

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