Sweden-Number/dlls/qcap/smartteefilter.c

638 lines
21 KiB
C

/*
* Implementation of the SmartTee filter
*
* Copyright 2015 Damjan Jovanovic
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "wtypes.h"
#include "wingdi.h"
#include "winuser.h"
#include "dshow.h"
#include "qcap_main.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(qcap);
typedef struct {
IUnknown IUnknown_iface;
IUnknown *outerUnknown;
BaseFilter filter;
BaseInputPin *input;
BaseOutputPin *capture;
BaseOutputPin *preview;
} SmartTeeFilter;
static inline SmartTeeFilter *impl_from_IUnknown(IUnknown *iface)
{
return CONTAINING_RECORD(iface, SmartTeeFilter, IUnknown_iface);
}
static inline SmartTeeFilter *impl_from_BaseFilter(BaseFilter *filter)
{
return CONTAINING_RECORD(filter, SmartTeeFilter, filter);
}
static inline SmartTeeFilter *impl_from_IBaseFilter(IBaseFilter *iface)
{
BaseFilter *filter = CONTAINING_RECORD(iface, BaseFilter, IBaseFilter_iface);
return impl_from_BaseFilter(filter);
}
static inline SmartTeeFilter *impl_from_BasePin(BasePin *pin)
{
return impl_from_IBaseFilter(pin->pinInfo.pFilter);
}
static inline SmartTeeFilter *impl_from_IPin(IPin *iface)
{
BasePin *bp = CONTAINING_RECORD(iface, BasePin, IPin_iface);
return impl_from_IBaseFilter(bp->pinInfo.pFilter);
}
static HRESULT WINAPI Unknown_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
{
SmartTeeFilter *This = impl_from_IUnknown(iface);
if (IsEqualIID(riid, &IID_IUnknown)) {
TRACE("(%p)->(IID_IUnknown, %p)\n", This, ppv);
*ppv = &This->IUnknown_iface;
} else if (IsEqualIID(riid, &IID_IPersist)) {
TRACE("(%p)->(IID_IPersist, %p)\n", This, ppv);
*ppv = &This->filter.IBaseFilter_iface;
} else if (IsEqualIID(riid, &IID_IMediaFilter)) {
TRACE("(%p)->(IID_IMediaFilter, %p)\n", This, ppv);
*ppv = &This->filter.IBaseFilter_iface;
} else if (IsEqualIID(riid, &IID_IBaseFilter)) {
TRACE("(%p)->(IID_IBaseFilter, %p)\n", This, ppv);
*ppv = &This->filter.IBaseFilter_iface;
} else {
FIXME("(%p): no interface for %s\n", This, debugstr_guid(riid));
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI Unknown_AddRef(IUnknown *iface)
{
SmartTeeFilter *This = impl_from_IUnknown(iface);
return BaseFilterImpl_AddRef(&This->filter.IBaseFilter_iface);
}
static ULONG WINAPI Unknown_Release(IUnknown *iface)
{
SmartTeeFilter *This = impl_from_IUnknown(iface);
ULONG ref = InterlockedDecrement(&This->filter.refcount);
TRACE("(%p)->() ref=%d\n", This, ref);
if (!ref) {
if(This->input)
BaseInputPinImpl_Release(&This->input->pin.IPin_iface);
if(This->capture)
BaseOutputPinImpl_Release(&This->capture->pin.IPin_iface);
if(This->preview)
BaseOutputPinImpl_Release(&This->preview->pin.IPin_iface);
strmbase_filter_cleanup(&This->filter);
CoTaskMemFree(This);
}
return ref;
}
static const IUnknownVtbl UnknownVtbl = {
Unknown_QueryInterface,
Unknown_AddRef,
Unknown_Release
};
static HRESULT WINAPI SmartTeeFilter_QueryInterface(IBaseFilter *iface, REFIID riid, void **ppv)
{
SmartTeeFilter *This = impl_from_IBaseFilter(iface);
return IUnknown_QueryInterface(This->outerUnknown, riid, ppv);
}
static ULONG WINAPI SmartTeeFilter_AddRef(IBaseFilter *iface)
{
SmartTeeFilter *This = impl_from_IBaseFilter(iface);
return IUnknown_AddRef(This->outerUnknown);
}
static ULONG WINAPI SmartTeeFilter_Release(IBaseFilter *iface)
{
SmartTeeFilter *This = impl_from_IBaseFilter(iface);
return IUnknown_Release(This->outerUnknown);
}
static HRESULT WINAPI SmartTeeFilter_Stop(IBaseFilter *iface)
{
SmartTeeFilter *This = impl_from_IBaseFilter(iface);
TRACE("(%p)\n", This);
EnterCriticalSection(&This->filter.csFilter);
This->filter.state = State_Stopped;
LeaveCriticalSection(&This->filter.csFilter);
return S_OK;
}
static HRESULT WINAPI SmartTeeFilter_Pause(IBaseFilter *iface)
{
SmartTeeFilter *This = impl_from_IBaseFilter(iface);
FIXME("(%p): stub\n", This);
return E_NOTIMPL;
}
static HRESULT WINAPI SmartTeeFilter_Run(IBaseFilter *iface, REFERENCE_TIME tStart)
{
SmartTeeFilter *This = impl_from_IBaseFilter(iface);
HRESULT hr = S_OK;
TRACE("(%p, %s)\n", This, wine_dbgstr_longlong(tStart));
EnterCriticalSection(&This->filter.csFilter);
if(This->filter.state != State_Running) {
/* We share an allocator among all pins, an allocator can only get committed
* once, state transitions occur in upstream order, and only output pins
* commit allocators, so let the filter attached to the input pin worry about it. */
if (This->input->pin.pConnectedTo)
This->filter.state = State_Running;
else
hr = VFW_E_NOT_CONNECTED;
}
LeaveCriticalSection(&This->filter.csFilter);
return hr;
}
static const IBaseFilterVtbl SmartTeeFilterVtbl = {
SmartTeeFilter_QueryInterface,
SmartTeeFilter_AddRef,
SmartTeeFilter_Release,
BaseFilterImpl_GetClassID,
SmartTeeFilter_Stop,
SmartTeeFilter_Pause,
SmartTeeFilter_Run,
BaseFilterImpl_GetState,
BaseFilterImpl_SetSyncSource,
BaseFilterImpl_GetSyncSource,
BaseFilterImpl_EnumPins,
BaseFilterImpl_FindPin,
BaseFilterImpl_QueryFilterInfo,
BaseFilterImpl_JoinFilterGraph,
BaseFilterImpl_QueryVendorInfo
};
static IPin *smart_tee_get_pin(BaseFilter *iface, unsigned int index)
{
SmartTeeFilter *This = impl_from_BaseFilter(iface);
IPin *ret;
if (index == 0)
ret = &This->input->pin.IPin_iface;
else if (index == 1)
ret = &This->capture->pin.IPin_iface;
else if (index == 2)
ret = &This->preview->pin.IPin_iface;
else
return NULL;
IPin_AddRef(ret);
return ret;
}
static const BaseFilterFuncTable SmartTeeFilterFuncs = {
.filter_get_pin = smart_tee_get_pin,
};
static ULONG WINAPI SmartTeeFilterInput_AddRef(IPin *iface)
{
SmartTeeFilter *This = impl_from_IPin(iface);
return IBaseFilter_AddRef(&This->filter.IBaseFilter_iface);
}
static ULONG WINAPI SmartTeeFilterInput_Release(IPin *iface)
{
SmartTeeFilter *This = impl_from_IPin(iface);
return IBaseFilter_Release(&This->filter.IBaseFilter_iface);
}
static const IPinVtbl SmartTeeFilterInputVtbl = {
BaseInputPinImpl_QueryInterface,
SmartTeeFilterInput_AddRef,
SmartTeeFilterInput_Release,
BaseInputPinImpl_Connect,
BaseInputPinImpl_ReceiveConnection,
BasePinImpl_Disconnect,
BasePinImpl_ConnectedTo,
BasePinImpl_ConnectionMediaType,
BasePinImpl_QueryPinInfo,
BasePinImpl_QueryDirection,
BasePinImpl_QueryId,
BasePinImpl_QueryAccept,
BasePinImpl_EnumMediaTypes,
BasePinImpl_QueryInternalConnections,
BaseInputPinImpl_EndOfStream,
BaseInputPinImpl_BeginFlush,
BaseInputPinImpl_EndFlush,
BaseInputPinImpl_NewSegment
};
static HRESULT WINAPI SmartTeeFilterInput_CheckMediaType(BasePin *base, const AM_MEDIA_TYPE *pmt)
{
SmartTeeFilter *This = impl_from_BasePin(base);
TRACE("(%p, AM_MEDIA_TYPE(%p))\n", This, pmt);
dump_AM_MEDIA_TYPE(pmt);
if (!pmt)
return VFW_E_TYPE_NOT_ACCEPTED;
/* We'll take any media type, but the output pins will later
* struggle to connect downstream. */
return S_OK;
}
static HRESULT WINAPI SmartTeeFilterInput_GetMediaType(BasePin *base, int iPosition, AM_MEDIA_TYPE *amt)
{
SmartTeeFilter *This = impl_from_BasePin(base);
HRESULT hr;
TRACE("(%p)->(%d, %p)\n", This, iPosition, amt);
if (iPosition)
return S_FALSE;
EnterCriticalSection(&This->filter.csFilter);
if (This->input->pin.pConnectedTo) {
CopyMediaType(amt, &This->input->pin.mtCurrent);
hr = S_OK;
} else
hr = S_FALSE;
LeaveCriticalSection(&This->filter.csFilter);
return hr;
}
static HRESULT copy_sample(IMediaSample *inputSample, IMemAllocator *allocator, IMediaSample **pOutputSample)
{
REFERENCE_TIME startTime, endTime;
BOOL haveStartTime = TRUE, haveEndTime = TRUE;
IMediaSample *outputSample = NULL;
BYTE *ptrIn, *ptrOut;
AM_MEDIA_TYPE *mediaType = NULL;
HRESULT hr;
hr = IMediaSample_GetTime(inputSample, &startTime, &endTime);
if (hr == S_OK)
;
else if (hr == VFW_S_NO_STOP_TIME)
haveEndTime = FALSE;
else if (hr == VFW_E_SAMPLE_TIME_NOT_SET)
haveStartTime = haveEndTime = FALSE;
else
goto end;
hr = IMemAllocator_GetBuffer(allocator, &outputSample,
haveStartTime ? &startTime : NULL, haveEndTime ? &endTime : NULL, 0);
if (FAILED(hr)) goto end;
if (IMediaSample_GetSize(outputSample) < IMediaSample_GetActualDataLength(inputSample)) {
ERR("insufficient space in sample\n");
hr = VFW_E_BUFFER_OVERFLOW;
goto end;
}
hr = IMediaSample_SetTime(outputSample, haveStartTime ? &startTime : NULL, haveEndTime ? &endTime : NULL);
if (FAILED(hr)) goto end;
hr = IMediaSample_GetPointer(inputSample, &ptrIn);
if (FAILED(hr)) goto end;
hr = IMediaSample_GetPointer(outputSample, &ptrOut);
if (FAILED(hr)) goto end;
memcpy(ptrOut, ptrIn, IMediaSample_GetActualDataLength(inputSample));
IMediaSample_SetActualDataLength(outputSample, IMediaSample_GetActualDataLength(inputSample));
hr = IMediaSample_SetDiscontinuity(outputSample, IMediaSample_IsDiscontinuity(inputSample) == S_OK);
if (FAILED(hr)) goto end;
haveStartTime = haveEndTime = TRUE;
hr = IMediaSample_GetMediaTime(inputSample, &startTime, &endTime);
if (hr == S_OK)
;
else if (hr == VFW_S_NO_STOP_TIME)
haveEndTime = FALSE;
else if (hr == VFW_E_MEDIA_TIME_NOT_SET)
haveStartTime = haveEndTime = FALSE;
else
goto end;
hr = IMediaSample_SetMediaTime(outputSample, haveStartTime ? &startTime : NULL, haveEndTime ? &endTime : NULL);
if (FAILED(hr)) goto end;
hr = IMediaSample_GetMediaType(inputSample, &mediaType);
if (FAILED(hr)) goto end;
if (hr == S_OK) {
hr = IMediaSample_SetMediaType(outputSample, mediaType);
if (FAILED(hr)) goto end;
}
hr = IMediaSample_SetPreroll(outputSample, IMediaSample_IsPreroll(inputSample) == S_OK);
if (FAILED(hr)) goto end;
hr = IMediaSample_SetSyncPoint(outputSample, IMediaSample_IsSyncPoint(inputSample) == S_OK);
if (FAILED(hr)) goto end;
end:
if (mediaType)
DeleteMediaType(mediaType);
if (FAILED(hr) && outputSample) {
IMediaSample_Release(outputSample);
outputSample = NULL;
}
*pOutputSample = outputSample;
return hr;
}
static HRESULT WINAPI SmartTeeFilterInput_Receive(BaseInputPin *base, IMediaSample *inputSample)
{
SmartTeeFilter *This = impl_from_BasePin(&base->pin);
IMediaSample *captureSample = NULL;
IMediaSample *previewSample = NULL;
HRESULT hrCapture = VFW_E_NOT_CONNECTED, hrPreview = VFW_E_NOT_CONNECTED;
TRACE("(%p)->(%p)\n", This, inputSample);
/* Modifying the image coming out of one pin doesn't modify the image
* coming out of the other. MSDN claims the filter doesn't copy,
* but unless it somehow uses copy-on-write, I just don't see how
* that's possible. */
/* FIXME: we should ideally do each of these in a separate thread */
EnterCriticalSection(&This->filter.csFilter);
if (This->capture->pin.pConnectedTo)
hrCapture = copy_sample(inputSample, This->capture->pAllocator, &captureSample);
LeaveCriticalSection(&This->filter.csFilter);
if (SUCCEEDED(hrCapture))
hrCapture = BaseOutputPinImpl_Deliver(This->capture, captureSample);
if (captureSample)
IMediaSample_Release(captureSample);
EnterCriticalSection(&This->filter.csFilter);
if (This->preview->pin.pConnectedTo)
hrPreview = copy_sample(inputSample, This->preview->pAllocator, &previewSample);
LeaveCriticalSection(&This->filter.csFilter);
/* No timestamps on preview stream: */
if (SUCCEEDED(hrPreview))
hrPreview = IMediaSample_SetTime(previewSample, NULL, NULL);
if (SUCCEEDED(hrPreview))
hrPreview = BaseOutputPinImpl_Deliver(This->preview, previewSample);
if (previewSample)
IMediaSample_Release(previewSample);
/* FIXME: how to merge the HRESULTs from the 2 pins? */
if (SUCCEEDED(hrCapture))
return hrCapture;
else
return hrPreview;
}
static const BaseInputPinFuncTable SmartTeeFilterInputFuncs = {
{
SmartTeeFilterInput_CheckMediaType,
SmartTeeFilterInput_GetMediaType
},
SmartTeeFilterInput_Receive
};
static ULONG WINAPI SmartTeeFilterCapture_AddRef(IPin *iface)
{
SmartTeeFilter *This = impl_from_IPin(iface);
return IBaseFilter_AddRef(&This->filter.IBaseFilter_iface);
}
static ULONG WINAPI SmartTeeFilterCapture_Release(IPin *iface)
{
SmartTeeFilter *This = impl_from_IPin(iface);
return IBaseFilter_Release(&This->filter.IBaseFilter_iface);
}
static HRESULT WINAPI SmartTeeFilterCapture_EnumMediaTypes(IPin *iface, IEnumMediaTypes **ppEnum)
{
SmartTeeFilter *This = impl_from_IPin(iface);
HRESULT hr;
TRACE("(%p)->(%p)\n", This, ppEnum);
EnterCriticalSection(&This->filter.csFilter);
if (This->input->pin.pConnectedTo) {
hr = BasePinImpl_EnumMediaTypes(iface, ppEnum);
} else
hr = VFW_E_NOT_CONNECTED;
LeaveCriticalSection(&This->filter.csFilter);
return hr;
}
static const IPinVtbl SmartTeeFilterCaptureVtbl = {
BaseOutputPinImpl_QueryInterface,
SmartTeeFilterCapture_AddRef,
SmartTeeFilterCapture_Release,
BaseOutputPinImpl_Connect,
BaseOutputPinImpl_ReceiveConnection,
BaseOutputPinImpl_Disconnect,
BasePinImpl_ConnectedTo,
BasePinImpl_ConnectionMediaType,
BasePinImpl_QueryPinInfo,
BasePinImpl_QueryDirection,
BasePinImpl_QueryId,
BasePinImpl_QueryAccept,
SmartTeeFilterCapture_EnumMediaTypes,
BasePinImpl_QueryInternalConnections,
BaseOutputPinImpl_EndOfStream,
BaseOutputPinImpl_BeginFlush,
BaseOutputPinImpl_EndFlush,
BasePinImpl_NewSegment
};
static HRESULT WINAPI SmartTeeFilterCapture_CheckMediaType(BasePin *base, const AM_MEDIA_TYPE *amt)
{
FIXME("(%p) stub\n", base);
return S_OK;
}
static HRESULT WINAPI SmartTeeFilterCapture_GetMediaType(BasePin *base, int iPosition, AM_MEDIA_TYPE *amt)
{
SmartTeeFilter *This = impl_from_BasePin(base);
TRACE("(%p, %d, %p)\n", This, iPosition, amt);
if (iPosition == 0) {
CopyMediaType(amt, &This->input->pin.mtCurrent);
return S_OK;
} else
return S_FALSE;
}
static HRESULT WINAPI SmartTeeFilterCapture_DecideAllocator(BaseOutputPin *base, IMemInputPin *pPin, IMemAllocator **pAlloc)
{
SmartTeeFilter *This = impl_from_BasePin(&base->pin);
TRACE("(%p, %p, %p)\n", This, pPin, pAlloc);
*pAlloc = This->input->pAllocator;
IMemAllocator_AddRef(This->input->pAllocator);
return IMemInputPin_NotifyAllocator(pPin, This->input->pAllocator, TRUE);
}
static const BaseOutputPinFuncTable SmartTeeFilterCaptureFuncs = {
{
SmartTeeFilterCapture_CheckMediaType,
SmartTeeFilterCapture_GetMediaType
},
BaseOutputPinImpl_AttemptConnection,
NULL,
SmartTeeFilterCapture_DecideAllocator,
};
static ULONG WINAPI SmartTeeFilterPreview_AddRef(IPin *iface)
{
SmartTeeFilter *This = impl_from_IPin(iface);
return IBaseFilter_AddRef(&This->filter.IBaseFilter_iface);
}
static ULONG WINAPI SmartTeeFilterPreview_Release(IPin *iface)
{
SmartTeeFilter *This = impl_from_IPin(iface);
return IBaseFilter_Release(&This->filter.IBaseFilter_iface);
}
static HRESULT WINAPI SmartTeeFilterPreview_EnumMediaTypes(IPin *iface, IEnumMediaTypes **ppEnum)
{
SmartTeeFilter *This = impl_from_IPin(iface);
HRESULT hr;
TRACE("(%p)->(%p)\n", This, ppEnum);
EnterCriticalSection(&This->filter.csFilter);
if (This->input->pin.pConnectedTo) {
hr = BasePinImpl_EnumMediaTypes(iface, ppEnum);
} else
hr = VFW_E_NOT_CONNECTED;
LeaveCriticalSection(&This->filter.csFilter);
return hr;
}
static const IPinVtbl SmartTeeFilterPreviewVtbl = {
BaseOutputPinImpl_QueryInterface,
SmartTeeFilterPreview_AddRef,
SmartTeeFilterPreview_Release,
BaseOutputPinImpl_Connect,
BaseOutputPinImpl_ReceiveConnection,
BaseOutputPinImpl_Disconnect,
BasePinImpl_ConnectedTo,
BasePinImpl_ConnectionMediaType,
BasePinImpl_QueryPinInfo,
BasePinImpl_QueryDirection,
BasePinImpl_QueryId,
BasePinImpl_QueryAccept,
SmartTeeFilterPreview_EnumMediaTypes,
BasePinImpl_QueryInternalConnections,
BaseOutputPinImpl_EndOfStream,
BaseOutputPinImpl_BeginFlush,
BaseOutputPinImpl_EndFlush,
BasePinImpl_NewSegment
};
static HRESULT WINAPI SmartTeeFilterPreview_CheckMediaType(BasePin *base, const AM_MEDIA_TYPE *amt)
{
FIXME("(%p) stub\n", base);
return S_OK;
}
static HRESULT WINAPI SmartTeeFilterPreview_GetMediaType(BasePin *base, int iPosition, AM_MEDIA_TYPE *amt)
{
SmartTeeFilter *This = impl_from_BasePin(base);
TRACE("(%p, %d, %p)\n", This, iPosition, amt);
if (iPosition == 0) {
CopyMediaType(amt, &This->input->pin.mtCurrent);
return S_OK;
} else
return S_FALSE;
}
static HRESULT WINAPI SmartTeeFilterPreview_DecideAllocator(BaseOutputPin *base, IMemInputPin *pPin, IMemAllocator **pAlloc)
{
SmartTeeFilter *This = impl_from_BasePin(&base->pin);
TRACE("(%p, %p, %p)\n", This, pPin, pAlloc);
*pAlloc = This->input->pAllocator;
IMemAllocator_AddRef(This->input->pAllocator);
return IMemInputPin_NotifyAllocator(pPin, This->input->pAllocator, TRUE);
}
static const BaseOutputPinFuncTable SmartTeeFilterPreviewFuncs = {
{
SmartTeeFilterPreview_CheckMediaType,
SmartTeeFilterPreview_GetMediaType
},
BaseOutputPinImpl_AttemptConnection,
NULL,
SmartTeeFilterPreview_DecideAllocator,
};
IUnknown* WINAPI QCAP_createSmartTeeFilter(IUnknown *outer, HRESULT *phr)
{
PIN_INFO inputPinInfo = {NULL, PINDIR_INPUT, {'I','n','p','u','t',0}};
PIN_INFO capturePinInfo = {NULL, PINDIR_OUTPUT, {'C','a','p','t','u','r','e',0}};
PIN_INFO previewPinInfo = {NULL, PINDIR_OUTPUT, {'P','r','e','v','i','e','w',0}};
HRESULT hr;
SmartTeeFilter *This = NULL;
TRACE("(%p, %p)\n", outer, phr);
This = CoTaskMemAlloc(sizeof(*This));
if (This == NULL) {
*phr = E_OUTOFMEMORY;
return NULL;
}
memset(This, 0, sizeof(*This));
This->IUnknown_iface.lpVtbl = &UnknownVtbl;
if (outer)
This->outerUnknown = outer;
else
This->outerUnknown = &This->IUnknown_iface;
strmbase_filter_init(&This->filter, &SmartTeeFilterVtbl, NULL, &CLSID_SmartTee,
(DWORD_PTR)(__FILE__ ": SmartTeeFilter.csFilter"), &SmartTeeFilterFuncs);
inputPinInfo.pFilter = &This->filter.IBaseFilter_iface;
hr = BaseInputPin_Construct(&SmartTeeFilterInputVtbl, sizeof(BaseInputPin), &inputPinInfo,
&SmartTeeFilterInputFuncs, &This->filter.csFilter, NULL, (IPin**)&This->input);
if (FAILED(hr))
goto end;
hr = CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC_SERVER,
&IID_IMemAllocator, (void**)&This->input->pAllocator);
if (FAILED(hr))
goto end;
capturePinInfo.pFilter = &This->filter.IBaseFilter_iface;
hr = BaseOutputPin_Construct(&SmartTeeFilterCaptureVtbl, sizeof(BaseOutputPin), &capturePinInfo,
&SmartTeeFilterCaptureFuncs, &This->filter.csFilter, (IPin**)&This->capture);
if (FAILED(hr))
goto end;
previewPinInfo.pFilter = &This->filter.IBaseFilter_iface;
hr = BaseOutputPin_Construct(&SmartTeeFilterPreviewVtbl, sizeof(BaseOutputPin), &previewPinInfo,
&SmartTeeFilterPreviewFuncs, &This->filter.csFilter, (IPin**)&This->preview);
end:
*phr = hr;
if (SUCCEEDED(hr)) {
if (outer)
return &This->IUnknown_iface;
else
return (IUnknown*)&This->filter.IBaseFilter_iface;
} else {
strmbase_filter_cleanup(&This->filter);
return NULL;
}
}