wined3d: Get rid of IWineD3DVolume::GetDesc().
[wine.git] / include / wine / strmbase.h
blob6b96c780f46fdf21cc9e0084cc337b44f7ff73ed
1 /*
2 * Header file for Wine's strmbase implementation
4 * Copyright 2003 Robert Shearman
5 * Copyright 2010 Aric Stewart, CodeWeavers
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 HRESULT WINAPI CopyMediaType(AM_MEDIA_TYPE * pDest, const AM_MEDIA_TYPE *pSrc);
23 void WINAPI FreeMediaType(AM_MEDIA_TYPE * pMediaType);
24 AM_MEDIA_TYPE * WINAPI CreateMediaType(AM_MEDIA_TYPE const * pSrc);
25 void WINAPI DeleteMediaType(AM_MEDIA_TYPE * pMediaType);
27 /* Pin functions */
29 typedef struct BasePin
31 const struct IPinVtbl * lpVtbl;
32 LONG refCount;
33 LPCRITICAL_SECTION pCritSec;
34 PIN_INFO pinInfo;
35 IPin * pConnectedTo;
36 AM_MEDIA_TYPE mtCurrent;
37 REFERENCE_TIME tStart;
38 REFERENCE_TIME tStop;
39 double dRate;
41 const struct BasePinFuncTable* pFuncsTable;
42 } BasePin;
44 typedef HRESULT (WINAPI *BasePin_CheckMediaType)(BasePin *This, const AM_MEDIA_TYPE *pmt);
45 typedef HRESULT (WINAPI *BasePin_AttemptConnection)(BasePin *This, IPin *pReceivePin, const AM_MEDIA_TYPE *pmt);
46 typedef LONG (WINAPI *BasePin_GetMediaTypeVersion)(BasePin *This);
47 typedef HRESULT (WINAPI *BasePin_GetMediaType)(BasePin *This, int iPosition, AM_MEDIA_TYPE *amt);
49 typedef struct BasePinFuncTable {
50 /* Required for Input Pins*/
51 BasePin_CheckMediaType pfnCheckMediaType;
52 /* Required for Output Pins*/
53 BasePin_AttemptConnection pfnAttemptConnection;
54 /* Required for BasePinImpl_EnumMediaTypes */
55 BasePin_GetMediaTypeVersion pfnGetMediaTypeVersion;
56 BasePin_GetMediaType pfnGetMediaType;
57 } BasePinFuncTable;
59 typedef struct BaseOutputPin
61 /* inheritance C style! */
62 BasePin pin;
63 IMemInputPin * pMemInputPin;
65 const struct BaseOutputPinFuncTable* pFuncsTable;
66 } BaseOutputPin;
68 typedef HRESULT (WINAPI *BaseOutputPin_DecideBufferSize)(BaseOutputPin *This, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest);
69 typedef HRESULT (WINAPI *BaseOutputPin_DecideAllocator)(BaseOutputPin *This, IMemInputPin *pPin, IMemAllocator **pAlloc);
70 typedef HRESULT (WINAPI *BaseOutputPin_BreakConnect)(BaseOutputPin * This);
72 typedef struct BaseOutputPinFuncTable {
73 /* Required for BaseOutputPinImpl_DecideAllocator */
74 BaseOutputPin_DecideBufferSize pfnDecideBufferSize;
75 /* Required for BaseOutputPinImpl_AttemptConnection */
76 BaseOutputPin_DecideAllocator pfnDecideAllocator;
77 BaseOutputPin_BreakConnect pfnBreakConnect;
78 } BaseOutputPinFuncTable;
80 typedef struct BaseInputPin
82 /* inheritance C style! */
83 BasePin pin;
85 const IMemInputPinVtbl * lpVtblMemInput;
86 IMemAllocator * pAllocator;
87 BOOL flushing, end_of_stream;
88 IMemAllocator *preferred_allocator;
90 const struct BaseInputPinFuncTable* pFuncsTable;
91 } BaseInputPin;
93 typedef HRESULT (WINAPI *BaseInputPin_Receive)(BaseInputPin *This, IMediaSample *pSample);
95 typedef struct BaseInputPinFuncTable {
96 /* Optional */
97 BaseInputPin_Receive pfnReceive;
98 } BaseInputPinFuncTable;
100 /* Base Pin */
101 HRESULT WINAPI BasePinImpl_GetMediaType(BasePin *This, int iPosition, AM_MEDIA_TYPE *pmt);
102 LONG WINAPI BasePinImpl_GetMediaTypeVersion(BasePin *This);
103 ULONG WINAPI BasePinImpl_AddRef(IPin * iface);
104 HRESULT WINAPI BasePinImpl_Disconnect(IPin * iface);
105 HRESULT WINAPI BasePinImpl_ConnectedTo(IPin * iface, IPin ** ppPin);
106 HRESULT WINAPI BasePinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt);
107 HRESULT WINAPI BasePinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo);
108 HRESULT WINAPI BasePinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir);
109 HRESULT WINAPI BasePinImpl_QueryId(IPin * iface, LPWSTR * Id);
110 HRESULT WINAPI BasePinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt);
111 HRESULT WINAPI BasePinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum);
112 HRESULT WINAPI BasePinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin);
113 HRESULT WINAPI BasePinImpl_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
115 /* Base Output Pin */
116 HRESULT WINAPI BaseOutputPinImpl_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
117 ULONG WINAPI BaseOutputPinImpl_Release(IPin * iface);
118 HRESULT WINAPI BaseOutputPinImpl_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
119 HRESULT WINAPI BaseOutputPinImpl_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
120 HRESULT WINAPI BaseOutputPinImpl_Disconnect(IPin * iface);
121 HRESULT WINAPI BaseOutputPinImpl_EndOfStream(IPin * iface);
122 HRESULT WINAPI BaseOutputPinImpl_BeginFlush(IPin * iface);
123 HRESULT WINAPI BaseOutputPinImpl_EndFlush(IPin * iface);
125 HRESULT WINAPI BaseOutputPinImpl_GetDeliveryBuffer(BaseOutputPin * This, IMediaSample ** ppSample, REFERENCE_TIME * tStart, REFERENCE_TIME * tStop, DWORD dwFlags);
126 HRESULT WINAPI BaseOutputPinImpl_Deliver(BaseOutputPin * This, IMediaSample * pSample);
127 HRESULT WINAPI BaseOutputPinImpl_BreakConnect(BaseOutputPin * This);
128 HRESULT WINAPI BaseOutputPinImpl_Active(BaseOutputPin * This);
129 HRESULT WINAPI BaseOutputPinImpl_Inactive(BaseOutputPin * This);
130 HRESULT WINAPI BaseOutputPinImpl_InitAllocator(BaseOutputPin *This, IMemAllocator **pMemAlloc);
131 HRESULT WINAPI BaseOutputPinImpl_DecideAllocator(BaseOutputPin *This, IMemInputPin *pPin, IMemAllocator **pAlloc);
132 HRESULT WINAPI BaseOutputPinImpl_AttemptConnection(BasePin *This, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
134 HRESULT WINAPI BaseOutputPin_Construct(const IPinVtbl *OutputPin_Vtbl, LONG outputpin_size, const PIN_INFO * pPinInfo, const BasePinFuncTable* pBaseFuncsTable, const BaseOutputPinFuncTable* pBaseOutputFuncsTable, LPCRITICAL_SECTION pCritSec, IPin ** ppPin);
136 /* Base Input Pin */
137 HRESULT WINAPI BaseInputPinImpl_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
138 ULONG WINAPI BaseInputPinImpl_Release(IPin * iface);
139 HRESULT WINAPI BaseInputPinImpl_Connect(IPin * iface, IPin * pConnector, const AM_MEDIA_TYPE * pmt);
140 HRESULT WINAPI BaseInputPinImpl_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
141 HRESULT WINAPI BaseInputPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt);
142 HRESULT WINAPI BaseInputPinImpl_EndOfStream(IPin * iface);
143 HRESULT WINAPI BaseInputPinImpl_BeginFlush(IPin * iface);
144 HRESULT WINAPI BaseInputPinImpl_EndFlush(IPin * iface);
145 HRESULT WINAPI BaseInputPinImpl_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
147 HRESULT BaseInputPin_Construct(const IPinVtbl *InputPin_Vtbl, const PIN_INFO * pPinInfo, const BasePinFuncTable* pBaseFuncsTable, const BaseInputPinFuncTable* pBaseInputFuncsTable, LPCRITICAL_SECTION pCritSec, IMemAllocator *, IPin ** ppPin);
149 typedef struct BaseFilter
151 const struct IBaseFilterVtbl *lpVtbl;
152 LONG refCount;
153 CRITICAL_SECTION csFilter;
155 FILTER_STATE state;
156 REFERENCE_TIME rtStreamStart;
157 IReferenceClock * pClock;
158 FILTER_INFO filterInfo;
159 CLSID clsid;
160 LONG pinVersion;
162 const struct BaseFilterFuncTable* pFuncsTable;
163 } BaseFilter;
165 typedef IPin* (WINAPI *BaseFilter_GetPin)(BaseFilter* iface, int iPosition);
166 typedef LONG (WINAPI *BaseFilter_GetPinCount)(BaseFilter* iface);
167 typedef LONG (WINAPI *BaseFilter_GetPinVersion)(BaseFilter* iface);
169 typedef struct BaseFilterFuncTable {
170 /* Required */
171 BaseFilter_GetPin pfnGetPin;
172 BaseFilter_GetPinCount pfnGetPinCount;
173 } BaseFilterFuncTable;
175 HRESULT WINAPI BaseFilterImpl_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv);
176 ULONG WINAPI BaseFilterImpl_AddRef(IBaseFilter * iface);
177 ULONG WINAPI BaseFilterImpl_Release(IBaseFilter * iface);
178 HRESULT WINAPI BaseFilterImpl_GetClassID(IBaseFilter * iface, CLSID * pClsid);
179 HRESULT WINAPI BaseFilterImpl_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState );
180 HRESULT WINAPI BaseFilterImpl_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock);
181 HRESULT WINAPI BaseFilterImpl_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock);
182 HRESULT WINAPI BaseFilterImpl_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum);
183 HRESULT WINAPI BaseFilterImpl_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo);
184 HRESULT WINAPI BaseFilterImpl_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName );
185 HRESULT WINAPI BaseFilterImpl_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo);
187 LONG WINAPI BaseFilterImpl_GetPinVersion(BaseFilter* This);
188 VOID WINAPI BaseFilterImpl_IncrementPinVersion(BaseFilter* This);
190 HRESULT WINAPI BaseFilter_Init(BaseFilter * This, const IBaseFilterVtbl *Vtbl, const CLSID *pClsid, DWORD_PTR DebugInfo, const BaseFilterFuncTable* pBaseFuncsTable);
192 /* Enums */
193 HRESULT WINAPI EnumMediaTypes_Construct(BasePin *iface, BasePin_GetMediaType enumFunc, BasePin_GetMediaTypeVersion versionFunc, IEnumMediaTypes ** ppEnum);
195 HRESULT WINAPI EnumPins_Construct(BaseFilter *base, BaseFilter_GetPin receive_pin, BaseFilter_GetPinCount receive_pincount, BaseFilter_GetPinVersion receive_version, IEnumPins ** ppEnum);
197 /* Quality Control */
198 typedef struct QualityControlImpl {
199 const IQualityControlVtbl *lpVtbl;
200 IPin *input;
201 IBaseFilter *self;
202 IQualityControl *tonotify;
204 /* Render stuff */
205 IReferenceClock *clock;
206 REFERENCE_TIME last_in_time, last_left, avg_duration, avg_pt, avg_render, start, stop;
207 REFERENCE_TIME current_jitter, current_rstart, current_rstop, clockstart;
208 double avg_rate;
209 LONG64 rendered, dropped;
210 BOOL qos_handled, is_dropped;
211 } QualityControlImpl;
213 void QualityControlImpl_init(QualityControlImpl *This, IPin *input, IBaseFilter *self);
214 HRESULT WINAPI QualityControlImpl_QueryInterface(IQualityControl *iface, REFIID riid, void **ppv);
215 ULONG WINAPI QualityControlImpl_AddRef(IQualityControl *iface);
216 ULONG WINAPI QualityControlImpl_Release(IQualityControl *iface);
217 HRESULT WINAPI QualityControlImpl_Notify(IQualityControl *iface, IBaseFilter *sender, Quality qm);
218 HRESULT WINAPI QualityControlImpl_SetSink(IQualityControl *iface, IQualityControl *tonotify);
220 void QualityControlRender_Start(QualityControlImpl *This, REFERENCE_TIME tStart);
221 void QualityControlRender_SetClock(QualityControlImpl *This, IReferenceClock *clock);
222 HRESULT QualityControlRender_WaitFor(QualityControlImpl *This, IMediaSample *sample, HANDLE ev);
223 void QualityControlRender_DoQOS(QualityControlImpl *priv);
224 void QualityControlRender_BeginRender(QualityControlImpl *This);
225 void QualityControlRender_EndRender(QualityControlImpl *This);
227 /* Transform Filter */
228 typedef struct TransformFilter
230 BaseFilter filter;
232 IPin **ppPins;
233 ULONG npins;
234 AM_MEDIA_TYPE pmt;
236 const struct TransformFilterFuncTable * pFuncsTable;
237 QualityControlImpl qcimpl;
238 } TransformFilter;
240 typedef HRESULT (WINAPI *TransformFilter_DecideBufferSize) (TransformFilter *iface, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest);
241 typedef HRESULT (WINAPI *TransformFilter_StartStreaming) (TransformFilter *iface);
242 typedef HRESULT (WINAPI *TransformFilter_StopStreaming) (TransformFilter *iface);
243 typedef HRESULT (WINAPI *TransformFilter_Receive) (TransformFilter* iface, IMediaSample* pIn);
244 typedef HRESULT (WINAPI *TransformFilter_CompleteConnect) (TransformFilter *iface, PIN_DIRECTION dir, IPin *pPin);
245 typedef HRESULT (WINAPI *TransformFilter_BreakConnect) (TransformFilter *iface, PIN_DIRECTION dir);
246 typedef HRESULT (WINAPI *TransformFilter_SetMediaType) (TransformFilter *iface, PIN_DIRECTION dir, const AM_MEDIA_TYPE *pMediaType);
247 typedef HRESULT (WINAPI *TransformFilter_CheckInputType) (TransformFilter *iface, const AM_MEDIA_TYPE *pMediaType);
248 typedef HRESULT (WINAPI *TransformFilter_EndOfStream) (TransformFilter *iface);
249 typedef HRESULT (WINAPI *TransformFilter_BeginFlush) (TransformFilter *iface);
250 typedef HRESULT (WINAPI *TransformFilter_EndFlush) (TransformFilter *iface);
251 typedef HRESULT (WINAPI *TransformFilter_NewSegment) (TransformFilter *iface,
252 REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
253 typedef HRESULT (WINAPI *TransformFilter_Notify) (TransformFilter *iface, IBaseFilter *sender, Quality qm);
255 typedef struct TransformFilterFuncTable {
256 /* Required */
257 TransformFilter_DecideBufferSize pfnDecideBufferSize;
258 /* Optional */
259 TransformFilter_StartStreaming pfnStartStreaming;
260 TransformFilter_Receive pfnReceive;
261 TransformFilter_StopStreaming pfnStopStreaming;
262 TransformFilter_CheckInputType pfnCheckInputType;
263 TransformFilter_SetMediaType pfnSetMediaType;
264 TransformFilter_CompleteConnect pfnCompleteConnect;
265 TransformFilter_BreakConnect pfnBreakConnect;
266 TransformFilter_EndOfStream pfnEndOfStream;
267 TransformFilter_BeginFlush pfnBeginFlush;
268 TransformFilter_EndFlush pfnEndFlush;
269 TransformFilter_NewSegment pfnNewSegment;
270 TransformFilter_Notify pfnNotify;
271 } TransformFilterFuncTable;
273 HRESULT WINAPI TransformFilterImpl_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv);
274 ULONG WINAPI TransformFilterImpl_Release(IBaseFilter * iface);
275 HRESULT WINAPI TransformFilterImpl_Stop(IBaseFilter * iface);
276 HRESULT WINAPI TransformFilterImpl_Pause(IBaseFilter * iface);
277 HRESULT WINAPI TransformFilterImpl_Run(IBaseFilter * iface, REFERENCE_TIME tStart);
278 HRESULT WINAPI TransformFilterImpl_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin);
280 HRESULT TransformFilter_Construct( const IBaseFilterVtbl *filterVtbl, LONG filter_size, const CLSID* pClsid, const TransformFilterFuncTable* pFuncsTable, IBaseFilter ** ppTransformFilter);
282 /* Source Seeking */
283 typedef HRESULT (WINAPI *SourceSeeking_ChangeRate)(IMediaSeeking *iface);
284 typedef HRESULT (WINAPI *SourceSeeking_ChangeStart)(IMediaSeeking *iface);
285 typedef HRESULT (WINAPI *SourceSeeking_ChangeStop)(IMediaSeeking *iface);
287 typedef struct SourceSeeking
289 const IMediaSeekingVtbl * lpVtbl;
291 ULONG refCount;
292 SourceSeeking_ChangeStop fnChangeStop;
293 SourceSeeking_ChangeStart fnChangeStart;
294 SourceSeeking_ChangeRate fnChangeRate;
295 DWORD dwCapabilities;
296 double dRate;
297 LONGLONG llCurrent, llStop, llDuration;
298 GUID timeformat;
299 PCRITICAL_SECTION crst;
300 } SourceSeeking;
302 HRESULT SourceSeeking_Init(SourceSeeking *pSeeking, const IMediaSeekingVtbl *Vtbl, SourceSeeking_ChangeStop fnChangeStop, SourceSeeking_ChangeStart fnChangeStart, SourceSeeking_ChangeRate fnChangeRate, PCRITICAL_SECTION crit_sect);
304 HRESULT WINAPI SourceSeekingImpl_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities);
305 HRESULT WINAPI SourceSeekingImpl_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities);
306 HRESULT WINAPI SourceSeekingImpl_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat);
307 HRESULT WINAPI SourceSeekingImpl_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat);
308 HRESULT WINAPI SourceSeekingImpl_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat);
309 HRESULT WINAPI SourceSeekingImpl_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat);
310 HRESULT WINAPI SourceSeekingImpl_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat);
311 HRESULT WINAPI SourceSeekingImpl_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration);
312 HRESULT WINAPI SourceSeekingImpl_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop);
313 HRESULT WINAPI SourceSeekingImpl_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent);
314 HRESULT WINAPI SourceSeekingImpl_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat);
315 HRESULT WINAPI SourceSeekingImpl_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags);
316 HRESULT WINAPI SourceSeekingImpl_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop);
317 HRESULT WINAPI SourceSeekingImpl_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest);
318 HRESULT WINAPI SourceSeekingImpl_SetRate(IMediaSeeking * iface, double dRate);
319 HRESULT WINAPI SourceSeekingImpl_GetRate(IMediaSeeking * iface, double * dRate);
320 HRESULT WINAPI SourceSeekingImpl_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll);
322 /* Filter Registration */
324 typedef REGPINTYPES AMOVIESETUP_MEDIATYPE;
325 typedef REGFILTERPINS AMOVIESETUP_PIN;
327 typedef struct AMOVIESETUP_FILTER {
328 const CLSID *clsid;
329 const WCHAR *name;
330 DWORD merit;
331 UINT pins;
332 const AMOVIESETUP_PIN *pPin;
333 } AMOVIESETUP_FILTER, *LPAMOVIESETUP_FILTER;
335 typedef IUnknown *(CALLBACK *LPFNNewCOMObject)(LPUNKNOWN pUnkOuter, HRESULT *phr);
336 typedef void (CALLBACK *LPFNInitRoutine)(BOOL bLoading, const CLSID *rclsid);
338 typedef struct tagFactoryTemplate {
339 const WCHAR *m_Name;
340 const CLSID *m_ClsID;
341 LPFNNewCOMObject m_lpfnNew;
342 LPFNInitRoutine m_lpfnInit;
343 const AMOVIESETUP_FILTER *m_pAMovieSetup_Filter;
344 } FactoryTemplate;
346 HRESULT WINAPI AMovieDllRegisterServer2(BOOL bRegister);
347 HRESULT WINAPI AMovieSetupRegisterFilter2(const AMOVIESETUP_FILTER *pFilter, IFilterMapper2 *pIFM2, BOOL bRegister);
349 /* Dll Functions */
350 BOOL WINAPI STRMBASE_DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv);
351 HRESULT WINAPI STRMBASE_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv);
352 HRESULT WINAPI STRMBASE_DllCanUnloadNow(void);