HRESULT ConnectFilters(CComPtr<IGraphBuilder> pGraph, CComPtr<IBaseFilter> pSrc, CComPtr<IBaseFilter> pDest)
{
CComPtr<IPin> pOut = 0;
CComPtr<IPin> pIn = 0;
HRESULT hr = FindUnconnectedPin(pSrc, PINDIR_OUTPUT, &pOut);
if(FAILED(hr))
return hr;
hr = FindUnconnectedPin(pDest, PINDIR_INPUT, &pIn);
if(FAILED(hr))
return hr;
hr = pGraph->Connect(pOut, pIn);
return hr;
}
HRESULT RenderSubPicture()
{
if (!m_pDeMux) return E_POINTER;
// Render from the output of the DVD Nav & then from the output of the decoder filter
IPin* subpicSource = FindPinByName(m_pDeMux, "SubPicture", PINDIR_OUTPUT);
if (!subpicSource) return E_FAIL;
HRESULT hr;
// Check if the video rendering filter has an extra input pin. If it doesn't then
// this'll end up adding another renderer to the graph which causes an ActiveMovieWindow
// to display. We abort rendering of the subpicture in this case.
/* if (!m_pVideoRenderer)
{
IBaseFilter* pCurrVRend = FindVideoRendererFilter(m_pGraph);
if (!pCurrVRend) return E_FAIL;
IPin* testPin = FindUnconnectedPin(m_pVideoRenderer, PINDIR_INPUT);
if (!testPin)
{
slog(("Aborting subpicture rendering because there's no more input pins on video renderer.\r\n"));
return E_FAIL;
}
testPin->Release();
}
else
{
IPin* testPin = FindUnconnectedPin(m_pVideoRenderer, PINDIR_INPUT);
if (!testPin)
{
slog(("Aborting subpicture rendering because there's no more input pins on video renderer.\r\n"));
return E_FAIL;
}
testPin->Release();
}
*/
// Get the decoder filter, since it may not be specified
IBaseFilter* pVideoDecoder = NULL;
IBaseFilter* pVideoRenderer = NULL;
if (m_pVideoDecoder)
{
pVideoDecoder = m_pVideoDecoder;
pVideoDecoder->AddRef();
}
else
{
IPin* vSrc = GetSourceVideoPin();
IPin* vNext = NULL;
vSrc->ConnectedTo(&vNext);
vSrc->Release();
PIN_INFO pInfo;
hr = vNext->QueryPinInfo(&pInfo);
pVideoDecoder = pInfo.pFilter;
vNext->Release();
}
// We added this back for Vista to get DVD subpictures to show up. But this won't end up doing anything
// if we can't find another input pin on the renderer.
BOOL renderDVDSubpic = TRUE;
if (renderDVDSubpic)
{
if (m_pVideoRenderer)
{
pVideoRenderer = m_pVideoRenderer;
pVideoRenderer->AddRef();
}
else
{
IPin* vSrc = FindUnconnectedPin(pVideoDecoder, PINDIR_OUTPUT, TRUE);
IPin* vNext = NULL;
vSrc->ConnectedTo(&vNext);
vSrc->Release();
PIN_INFO pInfo;
hr = vNext->QueryPinInfo(&pInfo);
pVideoRenderer = pInfo.pFilter;
vNext->Release();
}
}
IPin* subpicDestPin = FindUnconnectedPin(pVideoDecoder, PINDIR_INPUT);
if (!subpicDestPin)
{
pVideoDecoder->Release();
return E_FAIL;
}
hr = m_pGraph->Connect(subpicSource, subpicDestPin);
SAFE_RELEASE(subpicDestPin);
SAFE_RELEASE(subpicSource);
/*
* NOTE: 7/27/04 - On my system, the video wouldn't play at all on DVDs if I connected
* up the subpicture stream. But the subpicture worked fine when I didn't connect it.
* For now I'm going to leave it that way and then just connect up the CC instead.
*/
if (renderDVDSubpic && SUCCEEDED(hr))
{
IPin* decoderSubpicOut = FindDecoderSubpictureOutputPin(pVideoDecoder);
if (decoderSubpicOut)
{
IPin* renderSubpicIn = FindUnconnectedPin(pVideoRenderer, PINDIR_INPUT);
if (renderSubpicIn)
{
hr = m_pGraph->Connect(decoderSubpicOut, renderSubpicIn);
SAFE_RELEASE(renderSubpicIn);
}
// hr = m_pGraph->Render(decoderSubpicOut);
SAFE_RELEASE(decoderSubpicOut);
}
}
if (pVideoRenderer)
pVideoRenderer->Release();
pVideoDecoder->Release();
return hr;
}
