47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
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#include "clone.h"
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HRESULT StandardDMOClone_Ending(IMediaObject *pThis, IMediaObject *pCloned, IMediaObjectInPlace **ppCloned)
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{
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HRESULT hr = S_OK;
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// Copy the input and output types
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DMO_MEDIA_TYPE mt;
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DWORD cInputStreams = 0;
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DWORD cOutputStreams = 0;
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pThis->GetStreamCount(&cInputStreams, &cOutputStreams);
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for (DWORD i = 0; i < cInputStreams && SUCCEEDED(hr); ++i)
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{
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hr = pThis->GetInputCurrentType(i, &mt);
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if (hr == DMO_E_TYPE_NOT_SET)
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{
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hr = S_OK; // great, don't need to set the cloned DMO
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}
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else if (SUCCEEDED(hr))
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{
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hr = pCloned->SetInputType(i, &mt, 0);
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}
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}
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for (i = 0; i < cOutputStreams && SUCCEEDED(hr); ++i)
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{
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hr = pThis->GetOutputCurrentType(i, &mt);
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if (hr == DMO_E_TYPE_NOT_SET)
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{
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hr = S_OK; // great, don't need to set the cloned DMO
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}
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else if (SUCCEEDED(hr))
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{
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hr = pCloned->SetOutputType(i, &mt, 0);
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}
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}
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if (SUCCEEDED(hr))
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hr = pCloned->QueryInterface(IID_IMediaObjectInPlace, (void**)ppCloned);
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// Release the object's original ref. If clone succeeded (made it through QI) then returned pointer
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// has one ref. If we failed, refs drop to zero, freeing the object.
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pCloned->Release();
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return hr;
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}
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