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