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source: trunk/src/quartz/ifgraph.c@ 8582

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Last change on this file since 8582 was 6952, checked in by sandervl, 24 years ago
Wine 20011004 resync
File size: 15.7 KB

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1	/*
2	* Implementation of IFilterGraph.
3	*
4	* FIXME - create a thread to process some methods correctly.
5	*
6	* FIXME - ReconnectEx
7	* FIXME - process Pause/Stop asynchronously and notify when completed.
8	*
9	*
10	* hidenori@a2.ctktv.ne.jp
11	*/
12
13	#include "config.h"
14
15	#include "windef.h"
16	#include "winbase.h"
17	#include "wingdi.h"
18	#include "winuser.h"
19	#include "winerror.h"
20	#include "wine/obj_base.h"
21	#include "wine/obj_oleaut.h"
22	#include "strmif.h"
23	#include "control.h"
24	#include "uuids.h"
25	#include "vfwmsgs.h"
26	#include "wine/unicode.h"
27	#include "evcode.h"
28
29	#include "debugtools.h"
30	DEFAULT_DEBUG_CHANNEL(quartz);
31
32	#include "quartz_private.h"
33	#include "fgraph.h"
34	#include "enumunk.h"
35	#include "sysclock.h"
36
37
38	static HRESULT CFilterGraph_DisconnectAllPins( IBaseFilter* pFilter )
39	{
40	IEnumPins* pEnum = NULL;
41	IPin* pPin;
42	IPin* pConnTo;
43	ULONG cFetched;
44	HRESULT hr;
45
46	hr = IBaseFilter_EnumPins( pFilter, &pEnum );
47	if ( FAILED(hr) )
48	return hr;
49	if ( pEnum == NULL )
50	return E_FAIL;
51
52	while ( 1 )
53	{
54	pPin = NULL;
55	cFetched = 0;
56	hr = IEnumPins_Next( pEnum, 1, &pPin, &cFetched );
57	if ( FAILED(hr) )
58	break;
59	if ( hr != NOERROR \|\| pPin == NULL \|\| cFetched != 1 )
60	{
61	hr = NOERROR;
62	break;
63	}
64
65	pConnTo = NULL;
66	hr = IPin_ConnectedTo(pPin,&pConnTo);
67	if ( hr == NOERROR && pConnTo != NULL )
68	{
69	IPin_Disconnect(pPin);
70	IPin_Disconnect(pConnTo);
71	IPin_Release(pConnTo);
72	}
73
74	IPin_Release( pPin );
75	}
76
77	IEnumPins_Release( pEnum );
78
79	return hr;
80	}
81
82
83	static HRESULT CFilterGraph_GraphChanged( CFilterGraph* This )
84	{
85	/* IDistributorNotify_NotifyGraphChange() */
86
87	IMediaEventSink_Notify(CFilterGraph_IMediaEventSink(This),
88	EC_GRAPH_CHANGED, 0, 0);
89	EnterCriticalSection( &This->m_csGraphVersion );
90	This->m_lGraphVersion ++;
91	LeaveCriticalSection( &This->m_csGraphVersion );
92
93	return NOERROR;
94	}
95
96
97	/****************************************************************************/
98
99	static HRESULT WINAPI
100	IFilterGraph2_fnQueryInterface(IFilterGraph2* iface,REFIID riid,void** ppobj)
101	{
102	CFilterGraph_THIS(iface,fgraph);
103
104	TRACE("(%p)->()\n",This);
105
106	return IUnknown_QueryInterface(This->unk.punkControl,riid,ppobj);
107	}
108
109	static ULONG WINAPI
110	IFilterGraph2_fnAddRef(IFilterGraph2* iface)
111	{
112	CFilterGraph_THIS(iface,fgraph);
113
114	TRACE("(%p)->()\n",This);
115
116	return IUnknown_AddRef(This->unk.punkControl);
117	}
118
119	static ULONG WINAPI
120	IFilterGraph2_fnRelease(IFilterGraph2* iface)
121	{
122	CFilterGraph_THIS(iface,fgraph);
123
124	TRACE("(%p)->()\n",This);
125
126	return IUnknown_Release(This->unk.punkControl);
127	}
128
129	static HRESULT WINAPI
130	IFilterGraph2_fnAddFilter(IFilterGraph2* iface,IBaseFilter* pFilter, LPCWSTR pName)
131	{
132	CFilterGraph_THIS(iface,fgraph);
133	FILTER_STATE fs;
134	FILTER_INFO info;
135	HRESULT hr;
136	HRESULT hrSucceeded = S_OK;
137	QUARTZ_CompListItem* pItem;
138	int i,iLen;
139
140	TRACE( "(%p)->(%p,%s)\n",This,pFilter,debugstr_w(pName) );
141
142	QUARTZ_CompList_Lock( This->m_pFilterList );
143
144	hr = IMediaFilter_GetState(CFilterGraph_IMediaFilter(This),0,&fs);
145	if ( hr == VFW_S_STATE_INTERMEDIATE )
146	hr = VFW_E_STATE_CHANGED;
147	if ( fs != State_Stopped )
148	hr = VFW_E_NOT_STOPPED;
149	if ( FAILED(hr) )
150	goto end;
151
152	TRACE( "(%p) search the specified name.\n",This );
153
154	if ( pName != NULL )
155	{
156	pItem = QUARTZ_CompList_SearchData(
157	This->m_pFilterList,
158	pName, sizeof(WCHAR)*(strlenW(pName)+1) );
159	if ( pItem == NULL )
160	goto name_ok;
161
162	hrSucceeded = VFW_S_DUPLICATE_NAME;
163
164	iLen = strlenW(pName);
165	if ( iLen > 32 )
166	iLen = 32;
167	memcpy( info.achName, pName, sizeof(WCHAR)*iLen );
168	info.achName[iLen] = 0;
169	}
170	else
171	{
172	ZeroMemory( &info, sizeof(info) );
173	hr = IBaseFilter_QueryFilterInfo( pFilter, &info );
174	if ( FAILED(hr) )
175	goto end;
176
177	iLen = strlenW(info.achName);
178	pItem = QUARTZ_CompList_SearchData(
179	This->m_pFilterList,
180	info.achName, sizeof(WCHAR)*(iLen+1) );
181	if ( pItem == NULL )
182	{
183	pName = info.achName;
184	goto name_ok;
185	}
186	}
187
188	/* generate modified names for this filter.. */
189	iLen = strlenW(info.achName);
190	if ( iLen > 32 )
191	iLen = 32;
192	info.achName[iLen++] = ' ';
193
194	for ( i = 0; i <= 99; i++ )
195	{
196	info.achName[iLen+0] = (i%10) + '0';
197	info.achName[iLen+1] = ((i/10)%10) + '0';
198	info.achName[iLen+2] = 0;
199	pItem = QUARTZ_CompList_SearchData(
200	This->m_pFilterList,
201	info.achName, sizeof(WCHAR)*(iLen+3) );
202	if ( pItem == NULL )
203	{
204	pName = info.achName;
205	goto name_ok;
206	}
207	}
208
209	hr = ( pName == NULL ) ? E_FAIL : VFW_E_DUPLICATE_NAME;
210	goto end;
211
212	name_ok:
213	TRACE( "(%p) add this filter.\n",This );
214
215	/* register this filter. */
216	hr = QUARTZ_CompList_AddComp(
217	This->m_pFilterList, (IUnknown*)pFilter,
218	pName, sizeof(WCHAR)*(strlenW(pName)+1) );
219	if ( FAILED(hr) )
220	goto end;
221
222	hr = IBaseFilter_JoinFilterGraph(pFilter,(IFilterGraph*)iface,pName);
223	if ( SUCCEEDED(hr) )
224	{
225	EnterCriticalSection( &This->m_csClock );
226	hr = IBaseFilter_SetSyncSource( pFilter, This->m_pClock );
227	LeaveCriticalSection( &This->m_csClock );
228	}
229	if ( FAILED(hr) )
230	{
231	IBaseFilter_JoinFilterGraph(pFilter,NULL,pName);
232	QUARTZ_CompList_RemoveComp(
233	This->m_pFilterList,(IUnknown*)pFilter);
234	goto end;
235	}
236
237	hr = CFilterGraph_GraphChanged(This);
238	if ( FAILED(hr) )
239	goto end;
240
241	hr = hrSucceeded;
242	end:
243	QUARTZ_CompList_Unlock( This->m_pFilterList );
244
245	TRACE( "(%p) return %08lx\n", This, hr );
246
247	return hr;
248	}
249
250	static HRESULT WINAPI
251	IFilterGraph2_fnRemoveFilter(IFilterGraph2* iface,IBaseFilter* pFilter)
252	{
253	CFilterGraph_THIS(iface,fgraph);
254	QUARTZ_CompListItem* pItem;
255	FILTER_STATE fs;
256	HRESULT hr = NOERROR;
257
258	TRACE( "(%p)->(%p)\n",This,pFilter );
259
260	QUARTZ_CompList_Lock( This->m_pFilterList );
261
262	hr = IMediaFilter_GetState(CFilterGraph_IMediaFilter(This),0,&fs);
263	if ( hr == VFW_S_STATE_INTERMEDIATE )
264	hr = VFW_E_STATE_CHANGED;
265	if ( fs != State_Stopped )
266	hr = VFW_E_NOT_STOPPED;
267	if ( FAILED(hr) )
268	goto end;
269
270	hr = S_FALSE; /* FIXME? */
271	pItem = QUARTZ_CompList_SearchComp(
272	This->m_pFilterList, (IUnknown*)pFilter );
273	if ( pItem != NULL )
274	{
275	CFilterGraph_DisconnectAllPins(pFilter);
276	IBaseFilter_SetSyncSource( pFilter, NULL );
277	hr = IBaseFilter_JoinFilterGraph(
278	pFilter, NULL, QUARTZ_CompList_GetDataPtr(pItem) );
279	QUARTZ_CompList_RemoveComp(
280	This->m_pFilterList, (IUnknown*)pFilter );
281	}
282
283	hr = CFilterGraph_GraphChanged(This);
284	if ( FAILED(hr) )
285	goto end;
286
287	end:;
288	QUARTZ_CompList_Unlock( This->m_pFilterList );
289
290	return hr;
291	}
292
293	static HRESULT WINAPI
294	IFilterGraph2_fnEnumFilters(IFilterGraph2* iface,IEnumFilters** ppEnum)
295	{
296	CFilterGraph_THIS(iface,fgraph);
297	HRESULT hr;
298
299	TRACE( "(%p)->(%p)\n",This,ppEnum );
300
301	QUARTZ_CompList_Lock( This->m_pFilterList );
302
303	hr = QUARTZ_CreateEnumUnknown(
304	&IID_IEnumFilters, (void**)ppEnum, This->m_pFilterList );
305
306	QUARTZ_CompList_Unlock( This->m_pFilterList );
307
308	return hr;
309	}
310
311	static HRESULT WINAPI
312	IFilterGraph2_fnFindFilterByName(IFilterGraph2* iface,LPCWSTR pName,IBaseFilter** ppFilter)
313	{
314	CFilterGraph_THIS(iface,fgraph);
315	QUARTZ_CompListItem* pItem;
316	HRESULT hr = E_FAIL;
317
318	TRACE( "(%p)->(%s,%p)\n",This,debugstr_w(pName),ppFilter );
319
320	if ( ppFilter == NULL )
321	return E_POINTER;
322	*ppFilter = NULL;
323
324	QUARTZ_CompList_Lock( This->m_pFilterList );
325
326	pItem = QUARTZ_CompList_SearchData(
327	This->m_pFilterList,
328	pName, sizeof(WCHAR)*(strlenW(pName)+1) );
329	if ( pItem != NULL )
330	{
331	ppFilter = (IBaseFilter)QUARTZ_CompList_GetItemPtr(pItem);
332	hr = NOERROR;
333	}
334
335	QUARTZ_CompList_Unlock( This->m_pFilterList );
336
337	return hr;
338	}
339
340	static HRESULT WINAPI
341	IFilterGraph2_fnConnectDirect(IFilterGraph2* iface,IPin* pOut,IPin* pIn,const AM_MEDIA_TYPE* pmt)
342	{
343	CFilterGraph_THIS(iface,fgraph);
344	IPin* pConnTo;
345	PIN_INFO infoIn;
346	PIN_INFO infoOut;
347	FILTER_INFO finfoIn;
348	FILTER_INFO finfoOut;
349	HRESULT hr;
350
351	TRACE( "(%p)->(%p,%p,%p)\n",This,pOut,pIn,pmt );
352
353	infoIn.pFilter = NULL;
354	infoOut.pFilter = NULL;
355	finfoIn.pGraph = NULL;
356	finfoOut.pGraph = NULL;
357
358	QUARTZ_CompList_Lock( This->m_pFilterList );
359
360	hr = IPin_QueryPinInfo(pIn,&infoIn);
361	if ( FAILED(hr) )
362	goto end;
363	hr = IPin_QueryPinInfo(pOut,&infoOut);
364	if ( FAILED(hr) )
365	goto end;
366	if ( infoIn.pFilter == NULL \|\| infoOut.pFilter == NULL \|\|
367	infoIn.dir != PINDIR_INPUT \|\| infoOut.dir != PINDIR_OUTPUT )
368	{
369	hr = E_FAIL;
370	goto end;
371	}
372
373	hr = IBaseFilter_QueryFilterInfo(infoIn.pFilter,&finfoIn);
374	if ( FAILED(hr) )
375	goto end;
376	hr = IBaseFilter_QueryFilterInfo(infoOut.pFilter,&finfoOut);
377	if ( FAILED(hr) )
378	goto end;
379	if ( finfoIn.pGraph != ((IFilterGraph*)iface) \|\|
380	finfoOut.pGraph != ((IFilterGraph*)iface) )
381	{
382	hr = E_FAIL;
383	goto end;
384	}
385
386	pConnTo = NULL;
387	hr = IPin_ConnectedTo(pIn,&pConnTo);
388	if ( hr == NOERROR && pConnTo != NULL )
389	{
390	IPin_Release(pConnTo);
391	hr = VFW_E_ALREADY_CONNECTED;
392	goto end;
393	}
394
395	pConnTo = NULL;
396	hr = IPin_ConnectedTo(pOut,&pConnTo);
397	if ( hr == NOERROR && pConnTo != NULL )
398	{
399	IPin_Release(pConnTo);
400	hr = VFW_E_ALREADY_CONNECTED;
401	goto end;
402	}
403
404	TRACE("(%p) try to connect %p<->%p\n",This,pIn,pOut);
405	hr = IPin_Connect(pOut,pIn,pmt);
406	if ( FAILED(hr) )
407	{
408	TRACE("(%p)->Connect(%p,%p) hr = %08lx\n",pOut,pIn,pmt,hr);
409	IPin_Disconnect(pOut);
410	IPin_Disconnect(pIn);
411	goto end;
412	}
413
414	hr = CFilterGraph_GraphChanged(This);
415	if ( FAILED(hr) )
416	goto end;
417
418	end:
419	QUARTZ_CompList_Unlock( This->m_pFilterList );
420
421	if ( infoIn.pFilter != NULL )
422	IBaseFilter_Release(infoIn.pFilter);
423	if ( infoOut.pFilter != NULL )
424	IBaseFilter_Release(infoOut.pFilter);
425	if ( finfoIn.pGraph != NULL )
426	IFilterGraph_Release(finfoIn.pGraph);
427	if ( finfoOut.pGraph != NULL )
428	IFilterGraph_Release(finfoOut.pGraph);
429
430	return hr;
431	}
432
433	static HRESULT WINAPI
434	IFilterGraph2_fnReconnect(IFilterGraph2* iface,IPin* pPin)
435	{
436	CFilterGraph_THIS(iface,fgraph);
437
438	TRACE( "(%p)->(%p)\n",This,pPin );
439
440	return IFilterGraph2_ReconnectEx(iface,pPin,NULL);
441	}
442
443	static HRESULT WINAPI
444	IFilterGraph2_fnDisconnect(IFilterGraph2* iface,IPin* pPin)
445	{
446	CFilterGraph_THIS(iface,fgraph);
447	IPin* pConnTo;
448	HRESULT hr;
449
450	TRACE( "(%p)->(%p)\n",This,pPin );
451
452	QUARTZ_CompList_Lock( This->m_pFilterList );
453
454	pConnTo = NULL;
455	hr = IPin_ConnectedTo(pPin,&pConnTo);
456	if ( hr == NOERROR && pConnTo != NULL )
457	{
458	IPin_Disconnect(pConnTo);
459	IPin_Release(pConnTo);
460	}
461	hr = IPin_Disconnect(pPin);
462	if ( FAILED(hr) )
463	goto end;
464
465	hr = CFilterGraph_GraphChanged(This);
466	if ( FAILED(hr) )
467	goto end;
468
469	end:
470	QUARTZ_CompList_Unlock( This->m_pFilterList );
471
472	return hr;
473	}
474
475	static HRESULT WINAPI
476	IFilterGraph2_fnSetDefaultSyncSource(IFilterGraph2* iface)
477	{
478	CFilterGraph_THIS(iface,fgraph);
479	IUnknown* punk;
480	IReferenceClock* pClock;
481	HRESULT hr;
482
483	FIXME( "(%p)->() stub!\n", This );
484
485	/* FIXME - search all filters. */
486
487	hr = QUARTZ_CreateSystemClock( NULL, (void**)&punk );
488	if ( FAILED(hr) )
489	return hr;
490	hr = IUnknown_QueryInterface( punk, &IID_IReferenceClock, (void**)&pClock ); IUnknown_Release( punk );
491	if ( FAILED(hr) )
492	return hr;
493
494	hr = IMediaFilter_SetSyncSource(
495	CFilterGraph_IMediaFilter(This), pClock );
496	IReferenceClock_Release( pClock );
497
498	return hr;
499	}
500
501	static HRESULT WINAPI
502	IFilterGraph2_fnConnect(IFilterGraph2* iface,IPin* pOut,IPin* pIn)
503	{
504	CFilterGraph_THIS(iface,fgraph);
505	HRESULT hr;
506
507	TRACE( "(%p)->(%p,%p)\n",This,pOut,pIn );
508
509	/* At first, try to connect directly. */
510	hr = IFilterGraph_ConnectDirect(iface,pOut,pIn,NULL);
511	if ( hr == NOERROR )
512	return NOERROR;
513
514	/* FIXME - try to connect indirectly. */
515	FIXME( "(%p)->(%p,%p) stub!\n",This,pOut,pIn );
516
517
518	return E_NOTIMPL;
519	}
520
521	static HRESULT WINAPI
522	IFilterGraph2_fnRender(IFilterGraph2* iface,IPin* pOut)
523	{
524	CFilterGraph_THIS(iface,fgraph);
525
526	FIXME( "(%p)->(%p) stub!\n",This,pOut );
527	return E_NOTIMPL;
528	}
529
530	static HRESULT WINAPI
531	IFilterGraph2_fnRenderFile(IFilterGraph2* iface,LPCWSTR lpFileName,LPCWSTR lpPlayList)
532	{
533	CFilterGraph_THIS(iface,fgraph);
534	HRESULT hr;
535	IBaseFilter* pFilter = NULL;
536	IEnumPins* pEnum = NULL;
537	IPin* pPin;
538	ULONG cFetched;
539	PIN_DIRECTION dir;
540	ULONG cTryToRender;
541	ULONG cActRender;
542
543	TRACE( "(%p)->(%s,%s)\n",This,
544	debugstr_w(lpFileName),debugstr_w(lpPlayList) );
545
546	if ( lpPlayList != NULL )
547	return E_INVALIDARG;
548
549	pFilter = NULL;
550	hr = IFilterGraph2_AddSourceFilter(iface,lpFileName,NULL,&pFilter);
551	if ( FAILED(hr) )
552	goto end;
553	if ( pFilter == NULL )
554	{
555	hr = E_FAIL;
556	goto end;
557	}
558	pEnum = NULL;
559	hr = IBaseFilter_EnumPins( pFilter, &pEnum );
560	if ( FAILED(hr) )
561	goto end;
562	if ( pEnum == NULL )
563	{
564	hr = E_FAIL;
565	goto end;
566	}
567
568	cTryToRender = 0;
569	cActRender = 0;
570
571	while ( 1 )
572	{
573	pPin = NULL;
574	cFetched = 0;
575	hr = IEnumPins_Next( pEnum, 1, &pPin, &cFetched );
576	if ( FAILED(hr) )
577	goto end;
578	if ( hr != NOERROR \|\| pPin == NULL \|\| cFetched != 1 )
579	{
580	hr = NOERROR;
581	break;
582	}
583	hr = IPin_QueryDirection( pPin, &dir );
584	if ( hr == NOERROR && dir == PINDIR_OUTPUT )
585	{
586	cTryToRender ++;
587	hr = IFilterGraph2_Render( iface, pPin );
588	if ( hr == NOERROR )
589	cActRender ++;
590	}
591	IPin_Release( pPin );
592	}
593
594	if ( hr == NOERROR )
595	{
596	if ( cTryToRender > cActRender )
597	hr = VFW_S_PARTIAL_RENDER;
598	if ( cActRender == 0 )
599	hr = E_FAIL;
600	}
601
602	end:
603	if ( pEnum != NULL )
604	IEnumPins_Release( pEnum );
605	if ( pFilter != NULL )
606	IBaseFilter_Release( pFilter );
607
608	return hr;
609	}
610
611	static HRESULT WINAPI
612	IFilterGraph2_fnAddSourceFilter(IFilterGraph2* iface,LPCWSTR lpFileName,LPCWSTR lpFilterName,IBaseFilter** ppBaseFilter)
613	{
614	CFilterGraph_THIS(iface,fgraph);
615
616	FIXME( "(%p)->(%s,%s,%p) stub!\n",This,
617	debugstr_w(lpFileName),debugstr_w(lpFilterName),ppBaseFilter );
618	return E_NOTIMPL;
619	}
620
621	static HRESULT WINAPI
622	IFilterGraph2_fnSetLogFile(IFilterGraph2* iface,DWORD_PTR hFile)
623	{
624	CFilterGraph_THIS(iface,fgraph);
625
626	FIXME( "(%p)->() stub!\n", This );
627	return E_NOTIMPL;
628	}
629
630	static HRESULT WINAPI
631	IFilterGraph2_fnAbort(IFilterGraph2* iface)
632	{
633	CFilterGraph_THIS(iface,fgraph);
634
635	/* undoc. */
636
637	FIXME( "(%p)->() stub!\n", This );
638	return E_NOTIMPL;
639	}
640
641	static HRESULT WINAPI
642	IFilterGraph2_fnShouldOperationContinue(IFilterGraph2* iface)
643	{
644	CFilterGraph_THIS(iface,fgraph);
645
646	/* undoc. */
647
648	FIXME( "(%p)->() stub!\n", This );
649	return E_NOTIMPL;
650	}
651
652	static HRESULT WINAPI
653	IFilterGraph2_fnAddSourceFilterForMoniker(IFilterGraph2* iface,IMoniker* pMon,IBindCtx* pCtx,LPCWSTR pFilterName,IBaseFilter** ppFilter)
654	{
655	CFilterGraph_THIS(iface,fgraph);
656
657	FIXME( "(%p)->() stub!\n", This );
658	return E_NOTIMPL;
659	}
660
661	static HRESULT WINAPI
662	IFilterGraph2_fnReconnectEx(IFilterGraph2* iface,IPin* pPin,const AM_MEDIA_TYPE* pmt)
663	{
664	CFilterGraph_THIS(iface,fgraph);
665	HRESULT hr;
666
667	FIXME( "(%p)->(%p,%p) stub!\n",This,pPin,pmt );
668
669	/* reconnect asynchronously. */
670
671	hr = CFilterGraph_GraphChanged(This);
672
673	return E_NOTIMPL;
674	}
675
676	static HRESULT WINAPI
677	IFilterGraph2_fnRenderEx(IFilterGraph2* iface,IPin* pPin,DWORD dwParam1,DWORD* pdwParam2)
678	{
679	CFilterGraph_THIS(iface,fgraph);
680
681	/* undoc. */
682	FIXME( "(%p)->(%p,%08lx,%p) stub!\n",This,pPin,dwParam1,pdwParam2);
683	return E_NOTIMPL;
684	}
685
686
687
688
689	static ICOM_VTABLE(IFilterGraph2) ifgraph =
690	{
691	ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
692	/* IUnknown fields */
693	IFilterGraph2_fnQueryInterface,
694	IFilterGraph2_fnAddRef,
695	IFilterGraph2_fnRelease,
696	/* IFilterGraph fields */
697	IFilterGraph2_fnAddFilter,
698	IFilterGraph2_fnRemoveFilter,
699	IFilterGraph2_fnEnumFilters,
700	IFilterGraph2_fnFindFilterByName,
701	IFilterGraph2_fnConnectDirect,
702	IFilterGraph2_fnReconnect,
703	IFilterGraph2_fnDisconnect,
704	IFilterGraph2_fnSetDefaultSyncSource,
705	/* IGraphBuilder fields */
706	IFilterGraph2_fnConnect,
707	IFilterGraph2_fnRender,
708	IFilterGraph2_fnRenderFile,
709	IFilterGraph2_fnAddSourceFilter,
710	IFilterGraph2_fnSetLogFile,
711	IFilterGraph2_fnAbort,
712	IFilterGraph2_fnShouldOperationContinue,
713	/* IFilterGraph2 fields */
714	IFilterGraph2_fnAddSourceFilterForMoniker,
715	IFilterGraph2_fnReconnectEx,
716	IFilterGraph2_fnRenderEx,
717	};
718
719	HRESULT CFilterGraph_InitIFilterGraph2( CFilterGraph* pfg )
720	{
721	TRACE("(%p)\n",pfg);
722	ICOM_VTBL(&pfg->fgraph) = &ifgraph;
723
724	pfg->m_pFilterList = QUARTZ_CompList_Alloc();
725	if ( pfg->m_pFilterList == NULL )
726	return E_OUTOFMEMORY;
727
728	return NOERROR;
729	}
730
731	void CFilterGraph_UninitIFilterGraph2( CFilterGraph* pfg )
732	{
733	QUARTZ_CompListItem* pItem;
734
735	TRACE("(%p)\n",pfg);
736
737	/* remove all filters... */
738	while ( 1 )
739	{
740	pItem = QUARTZ_CompList_GetFirst( pfg->m_pFilterList );
741	if ( pItem == NULL )
742	break;
743	IFilterGraph2_RemoveFilter(
744	(IFilterGraph2*)(&pfg->fgraph),
745	(IBaseFilter*)QUARTZ_CompList_GetItemPtr(pItem) );
746	}
747
748	QUARTZ_CompList_Free( pfg->m_pFilterList );
749	}

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