/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_GetAllocator(IMemInputPin *iface, IMemAllocator **allocator)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
TRACE("(%p)->(%p) allocator = %p\n", This, allocator, This->allocator);
if (!allocator)
return E_POINTER;
*allocator = This->allocator;
if (!*allocator)
return VFW_E_NO_ALLOCATOR;
IMemAllocator_AddRef(*allocator);
return S_OK;
}
/* IMemInputPin */
static HRESULT WINAPI
SampleGrabber_IMemInputPin_NotifyAllocator(IMemInputPin *iface, IMemAllocator *allocator, BOOL readOnly)
{
SG_Impl *This = impl_from_IMemInputPin(iface);
TRACE("(%p)->(%p, %u) allocator = %p\n", This, allocator, readOnly, This->allocator);
if (This->allocator == allocator)
return S_OK;
if (This->allocator)
IMemAllocator_Release(This->allocator);
This->allocator = allocator;
if (allocator)
IMemAllocator_AddRef(allocator);
return S_OK;
}
static HRESULT WINAPI QTOutPin_DecideAllocator(BaseOutputPin *iface, IMemInputPin *pPin, IMemAllocator **pAlloc)
{
HRESULT hr;
QTOutPin *This = impl_QTOutPin_from_BaseOutputPin(iface);
QTSplitter *QTfilter = impl_from_IBaseFilter(This->pin.pin.pinInfo.pFilter);
*pAlloc = NULL;
if (QTfilter->pInputPin.pAlloc)
{
hr = IMemInputPin_NotifyAllocator(pPin, QTfilter->pInputPin.pAlloc, FALSE);
if (SUCCEEDED(hr))
{
*pAlloc = QTfilter->pInputPin.pAlloc;
IMemAllocator_AddRef(*pAlloc);
}
}
else
hr = VFW_E_NO_ALLOCATOR;
return hr;
}
static HRESULT WINAPI Parser_OutputPin_DecideAllocator(BaseOutputPin *iface, IMemInputPin *pPin, IMemAllocator **pAlloc)
{
Parser_OutputPin *This = (Parser_OutputPin*)iface;
HRESULT hr;
*pAlloc = NULL;
if (This->alloc)
{
hr = IMemInputPin_NotifyAllocator(pPin, This->alloc, This->readonly);
if (SUCCEEDED(hr))
{
*pAlloc = This->alloc;
IMemAllocator_AddRef(*pAlloc);
}
}
else
hr = VFW_E_NO_ALLOCATOR;
return hr;
}
