Hi guys,
I am new to directShow and found GraphEditPlus. I think this product is great. However, I tried to just render a Windows Media Center WTV file and I got a problem.
The WTV file plays very good in GraphEditPlus. When I use the generated C++ code, I got this error:
Building graph...
Pin not found!
Error 80004003: Can't connect StreamBufferSource and PBDA DTFilter 0001
and here is the generated code:
(the only thing I changed was in "hrcheck" function: I changed Tchar* to char*)
#include "stdafx.h"
#include <DShow.h>
#include <atlbase.h>
#include <initguid.h>
#include <dvdmedia.h>
BOOL hrcheck(HRESULT hr, CHAR* errtext)
{
if (hr >= S_OK)
return FALSE;
TCHAR szErr[MAX_ERROR_TEXT_LEN];
DWORD res = AMGetErrorText(hr, szErr, MAX_ERROR_TEXT_LEN);
if (res)
printf("Error %x: %s\n%s\n",hr, errtext,szErr);
else
printf("Error %x: %s\n", hr, errtext);
return TRUE;
}
//change this macro to fit your style of error handling
#define CHECK_HR(hr, msg) if (hrcheck(hr, msg)) return hr;
CComPtr<IPin> GetPin(IBaseFilter *pFilter, LPCOLESTR pinname)
{
CComPtr<IEnumPins> pEnum;
CComPtr<IPin> pPin;
HRESULT hr = pFilter->EnumPins(&pEnum);
if (hrcheck(hr, "Can't enumerate pins."))
return NULL;
while(pEnum->Next(1, &pPin, 0) == S_OK)
{
PIN_INFO pinfo;
pPin->QueryPinInfo(&pinfo);
BOOL found = !wcsicmp(pinname, pinfo.achName);
if (pinfo.pFilter) pinfo.pFilter->Release();
if (found)
return pPin;
pPin.Release();
}
printf("Pin not found!\n");
return NULL;
}
// {C9F5FE02-F851-4EB5-99EE-AD602AF1E619}
DEFINE_GUID(CLSID_StreamBufferSource,
0xC9F5FE02, 0xF851, 0x4EB5, 0x99, 0xEE, 0xAD, 0x60, 0x2A, 0xF1, 0xE6, 0x19); //sbe.dll
// {09144FD6-BB29-11DB-96F1-005056C00008}
DEFINE_GUID(CLSID_PBDADTFilter0001,
0x09144FD6, 0xBB29, 0x11DB, 0x96, 0xF1, 0x00, 0x50, 0x56, 0xC0, 0x00, 0x08); //CPFilters.dll
// {212690FB-83E5-4526-8FD7-74478B7939CD}
DEFINE_GUID(CLSID_MicrosoftDTVDVDVideoDecoder,
0x212690FB, 0x83E5, 0x4526, 0x8F, 0xD7, 0x74, 0x47, 0x8B, 0x79, 0x39, 0xCD); //msmpeg2vdec.dll
// {B87BEB7B-8D29-423F-AE4D-6582C10175AC}
DEFINE_GUID(CLSID_VideoRenderer,
0xB87BEB7B, 0x8D29, 0x423F, 0xAE, 0x4D, 0x65, 0x82, 0xC1, 0x01, 0x75, 0xAC); //quartz.dll
HRESULT BuildGraph(IGraphBuilder *pGraph)
{
HRESULT hr = S_OK;
//graph builder
CComPtr<ICaptureGraphBuilder2> pBuilder;
hr = pBuilder.CoCreateInstance(CLSID_CaptureGraphBuilder2);
CHECK_HR(hr, "Can't create Capture Graph Builder");
hr = pBuilder->SetFiltergraph(pGraph);
CHECK_HR(hr, "Can't SetFiltergraph");
//add StreamBufferSource
CComPtr<IBaseFilter> pStreamBufferSource;
hr = pStreamBufferSource.CoCreateInstance(CLSID_StreamBufferSource);
CHECK_HR(hr, "Can't create StreamBufferSource");
hr = pGraph->AddFilter(pStreamBufferSource, L"StreamBufferSource");
CHECK_HR(hr, "Can't add StreamBufferSource to graph");
//add PBDA DTFilter 0001
CComPtr<IBaseFilter> pPBDADTFilter0001;
hr = pPBDADTFilter0001.CoCreateInstance(CLSID_PBDADTFilter0001);
CHECK_HR(hr, "Can't create PBDA DTFilter 0001");
hr = pGraph->AddFilter(pPBDADTFilter0001, L"PBDA DTFilter 0001");
CHECK_HR(hr, "Can't add PBDA DTFilter 0001 to graph");
//connect StreamBufferSource and PBDA DTFilter 0001
hr = pGraph->ConnectDirect(GetPin(pStreamBufferSource, L"DVR Out - 2"), GetPin(pPBDADTFilter0001, L"In(Enc/Tag)"), NULL);
CHECK_HR(hr, "Can't connect StreamBufferSource and PBDA DTFilter 0001");
//add Microsoft DTV-DVD Video Decoder
CComPtr<IBaseFilter> pMicrosoftDTVDVDVideoDecoder;
hr = pMicrosoftDTVDVDVideoDecoder.CoCreateInstance(CLSID_MicrosoftDTVDVDVideoDecoder);
CHECK_HR(hr, "Can't create Microsoft DTV-DVD Video Decoder");
hr = pGraph->AddFilter(pMicrosoftDTVDVDVideoDecoder, L"Microsoft DTV-DVD Video Decoder");
CHECK_HR(hr, "Can't add Microsoft DTV-DVD Video Decoder to graph");
//connect PBDA DTFilter 0001 and Microsoft DTV-DVD Video Decoder
hr = pGraph->ConnectDirect(GetPin(pPBDADTFilter0001, L"Out"), GetPin(pMicrosoftDTVDVDVideoDecoder, L"Video Input"), NULL);
CHECK_HR(hr, "Can't connect PBDA DTFilter 0001 and Microsoft DTV-DVD Video Decoder");
//add Video Renderer
CComPtr<IBaseFilter> pVideoRenderer;
hr = pVideoRenderer.CoCreateInstance(CLSID_VideoRenderer);
CHECK_HR(hr, "Can't create Video Renderer");
hr = pGraph->AddFilter(pVideoRenderer, L"Video Renderer");
CHECK_HR(hr, "Can't add Video Renderer to graph");
//connect Microsoft DTV-DVD Video Decoder and Video Renderer
hr = pGraph->ConnectDirect(GetPin(pMicrosoftDTVDVDVideoDecoder, L"Video Output 1"), GetPin(pVideoRenderer, L"VMR Input0"), NULL);
CHECK_HR(hr, "Can't connect Microsoft DTV-DVD Video Decoder and Video Renderer");
return S_OK;
}
//int _tmain(int argc, _TCHAR* argv[]) //use this line in VS2008
int main(int argc, char* argv[])
{
CoInitialize(NULL);
CComPtr<IGraphBuilder> graph;
graph.CoCreateInstance(CLSID_FilterGraph);
printf("Building graph...\n");
HRESULT hr = BuildGraph(graph);
if (hr==S_OK) {
printf("Running");
CComQIPtr<IMediaControl, &IID_IMediaControl> mediaControl(graph);
hr = mediaControl->Run();
CHECK_HR(hr, "Can't run the graph");
CComQIPtr<IMediaEvent, &IID_IMediaEvent> mediaEvent(graph);
BOOL stop = FALSE;
MSG msg;
while(!stop)
{
long ev=0, p1=0, p2=0;
Sleep(500);
printf(".");
while(PeekMessage(&msg, NULL, 0,0, PM_REMOVE))
DispatchMessage(&msg);
while (mediaEvent->GetEvent(&ev, &p1, &p2, 0)==S_OK)
{
if (ev == EC_COMPLETE || ev == EC_USERABORT)
{
printf("Done!\n");
stop = TRUE;
}
else
if (ev == EC_ERRORABORT)
{
printf("An error occured: HRESULT=%x\n", p1);
mediaControl->Stop();
stop = TRUE;
}
mediaEvent->FreeEventParams(ev, p1, p2);
}
}
}
CoUninitialize();
return 0;
}
Could someone please help? Thanks in advance.
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My system:
--Windows 7 professional
--Microsoft VS 2010
