以下是两段摘自微软Directshow filte例子的源代码(两个递归函数),稍作修改。它们的功能是:给定一个Filter,删除这个Filter上面/下面连着的所有Filter。非常实用!欢迎大家收藏。
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kM9t-BgmrDirectShow 开发论坛// Tear down everything downstream of a given filterDirectShow 开发, Filter 开发,多媒体编程, Directshow Filter - F_!Ah3d$S.Hm#j&j
void NukeDownstream(IGraphBuilder * inGraph, IBaseFilter * inFilter)
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t yLF1\2j IEnumPins * pinEnum = 0;
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pinEnum->Reset();DirectShow 开发论坛k+M
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IPin * pin = 0;t3t;o/H-t
ULONG cFetched = 0;
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IPin * connectedPin = 0;DirectShow 开发,Filter 开发, 多媒体编程, Directshow Filter -yYF'_ ?~YA
pin->ConnectedTo(&connectedPin);- DirectShow - Filter -:Bg)j?
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inGraph->Disconnect(pin);
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A3g"Z-JDirectShow 开发, Filter 开发,多媒体编程, Directshow Filter - inGraph->RemoveFilter(pininfo.pFilter);#_*[v(N_6{A-B
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pininfo.pFilter->Release();DirectShow 开发, Filter 开发,多媒体编程, Directshow Filter - 1@LxRx$`a
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pin->Release();
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else
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if (inGraph && inFilter)
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IEnumPins * pinEnum = 0;
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bool pass = true;/y3?:|4G.pL
while (pass && SUCCEEDED(pinEnum->Next(1, &pin, &cFetched)))
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ju JssDirectShow 开发论坛 IPin * connectedPin = 0;DirectShow 开发,Filter 开发, 多媒体编程, Directshow Filter -!gB:|'F'| A
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if (SUCCEEDED(connectedPin->QueryPinInfo(&pininfo)))
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if(pininfo.dir == PINDIR_OUTPUT)
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inGraph->Disconnect(connectedPin);- DirectShow - Filter -j_5M1}k6Q
inGraph->Disconnect(pin);
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pin->Release();
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pinEnum->Release();
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