2 * Generic Implementation of IBaseFilter Interface
4 * Copyright 2010 Aric Stewart, CodeWeavers
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "strmbase_private.h"
23 static inline BaseFilter
*impl_from_IBaseFilter(IBaseFilter
*iface
)
25 return CONTAINING_RECORD(iface
, BaseFilter
, IBaseFilter_iface
);
28 HRESULT WINAPI
BaseFilterImpl_QueryInterface(IBaseFilter
* iface
, REFIID riid
, LPVOID
* ppv
)
30 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
31 TRACE("(%p)->(%s, %p)\n", iface
, debugstr_guid(riid
), ppv
);
35 if (IsEqualIID(riid
, &IID_IUnknown
))
37 else if (IsEqualIID(riid
, &IID_IPersist
))
39 else if (IsEqualIID(riid
, &IID_IMediaFilter
))
41 else if (IsEqualIID(riid
, &IID_IBaseFilter
))
46 IUnknown_AddRef((IUnknown
*)(*ppv
));
53 ULONG WINAPI
BaseFilterImpl_AddRef(IBaseFilter
* iface
)
55 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
56 ULONG refCount
= InterlockedIncrement(&This
->refCount
);
58 TRACE("(%p)->() AddRef from %d\n", This
, refCount
- 1);
63 ULONG WINAPI
BaseFilterImpl_Release(IBaseFilter
* iface
)
65 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
66 ULONG refCount
= InterlockedDecrement(&This
->refCount
);
68 TRACE("(%p)->() Release from %d\n", This
, refCount
+ 1);
73 IReferenceClock_Release(This
->pClock
);
75 This
->IBaseFilter_iface
.lpVtbl
= NULL
;
76 This
->csFilter
.DebugInfo
->Spare
[0] = 0;
77 DeleteCriticalSection(&This
->csFilter
);
83 HRESULT WINAPI
BaseFilterImpl_GetClassID(IBaseFilter
* iface
, CLSID
* pClsid
)
85 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
86 TRACE("(%p)->(%p)\n", This
, pClsid
);
88 *pClsid
= This
->clsid
;
93 HRESULT WINAPI
BaseFilterImpl_GetState(IBaseFilter
* iface
, DWORD dwMilliSecsTimeout
, FILTER_STATE
*pState
)
95 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
96 TRACE("(%p)->(%d, %p)\n", This
, dwMilliSecsTimeout
, pState
);
98 EnterCriticalSection(&This
->csFilter
);
100 *pState
= This
->state
;
102 LeaveCriticalSection(&This
->csFilter
);
107 HRESULT WINAPI
BaseFilterImpl_SetSyncSource(IBaseFilter
* iface
, IReferenceClock
*pClock
)
109 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
110 TRACE("(%p)->(%p)\n", This
, pClock
);
112 EnterCriticalSection(&This
->csFilter
);
115 IReferenceClock_Release(This
->pClock
);
116 This
->pClock
= pClock
;
118 IReferenceClock_AddRef(This
->pClock
);
120 LeaveCriticalSection(&This
->csFilter
);
125 HRESULT WINAPI
BaseFilterImpl_GetSyncSource(IBaseFilter
* iface
, IReferenceClock
**ppClock
)
127 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
128 TRACE("(%p)->(%p)\n", This
, ppClock
);
130 EnterCriticalSection(&This
->csFilter
);
132 *ppClock
= This
->pClock
;
134 IReferenceClock_AddRef(This
->pClock
);
136 LeaveCriticalSection(&This
->csFilter
);
141 HRESULT WINAPI
BaseFilterImpl_EnumPins(IBaseFilter
* iface
, IEnumPins
**ppEnum
)
143 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
145 TRACE("(%p)->(%p)\n", iface
, ppEnum
);
147 return EnumPins_Construct(This
, This
->pFuncsTable
->pfnGetPin
, This
->pFuncsTable
->pfnGetPinCount
, BaseFilterImpl_GetPinVersion
, ppEnum
);
151 HRESULT WINAPI
BaseFilterImpl_QueryFilterInfo(IBaseFilter
* iface
, FILTER_INFO
*pInfo
)
153 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
154 TRACE("(%p)->(%p)\n", This
, pInfo
);
156 strcpyW(pInfo
->achName
, This
->filterInfo
.achName
);
157 pInfo
->pGraph
= This
->filterInfo
.pGraph
;
160 IFilterGraph_AddRef(pInfo
->pGraph
);
165 HRESULT WINAPI
BaseFilterImpl_JoinFilterGraph(IBaseFilter
* iface
, IFilterGraph
*pGraph
, LPCWSTR pName
)
168 BaseFilter
*This
= impl_from_IBaseFilter(iface
);
170 TRACE("(%p)->(%p, %s)\n", This
, pGraph
, debugstr_w(pName
));
172 EnterCriticalSection(&This
->csFilter
);
175 strcpyW(This
->filterInfo
.achName
, pName
);
177 *This
->filterInfo
.achName
= '\0';
178 This
->filterInfo
.pGraph
= pGraph
; /* NOTE: do NOT increase ref. count */
180 LeaveCriticalSection(&This
->csFilter
);
185 HRESULT WINAPI
BaseFilterImpl_QueryVendorInfo(IBaseFilter
* iface
, LPWSTR
*pVendorInfo
)
187 TRACE("(%p)->(%p)\n", iface
, pVendorInfo
);
191 LONG WINAPI
BaseFilterImpl_GetPinVersion(BaseFilter
* This
)
193 TRACE("(%p)\n", This
);
194 return This
->pinVersion
;
197 VOID WINAPI
BaseFilterImpl_IncrementPinVersion(BaseFilter
* This
)
199 InterlockedIncrement(&This
->pinVersion
);
200 TRACE("(%p) -> New pinVersion %i\n", This
,This
->pinVersion
);
203 HRESULT WINAPI
BaseFilter_Init(BaseFilter
* This
, const IBaseFilterVtbl
*Vtbl
, const CLSID
*pClsid
, DWORD_PTR DebugInfo
, const BaseFilterFuncTable
* pBaseFuncsTable
)
205 This
->IBaseFilter_iface
.lpVtbl
= Vtbl
;
207 InitializeCriticalSection(&This
->csFilter
);
208 This
->state
= State_Stopped
;
209 This
->rtStreamStart
= 0;
211 ZeroMemory(&This
->filterInfo
, sizeof(FILTER_INFO
));
212 This
->clsid
= *pClsid
;
213 This
->csFilter
.DebugInfo
->Spare
[0] = DebugInfo
;
214 This
->pinVersion
= 1;
216 This
->pFuncsTable
= pBaseFuncsTable
;