IndyJoe
Newbie
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Posts: 2
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« on: June 22, 2009, 11:02:00 PM » |
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I tried to create an application using the code generator, but I'm getting 60+ errors when I try to build the app. I've never tried to create a program using C++, so I'm sure I'm doing something wrong. I'm trying to create an app that will automatically run a GraphEditPlus file, so maybe this wouldn't work regardless. If anyone can help, I would appreciate it. Here's my code:
#include "stdafx.h"
#include <DShow.h>
#include <initguid.h>
#include <dvdmedia.h>
BOOL hrcheck (HRESULT hr, TCHAR* 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<IBaseFilter> CreateFilter(WCHAR* displayName)
{
CComPtr<IBindCtx> pBindCtx;
HRESULT hr = CreateBindCtx(0, &pBindCtx);
if (hrcheck(hr, "Can't create bind context"))
return NULL;
ULONG chEaten = 0;
CComPtr<IMoniker> pMoniker;
hr = MkParseDisplayName(pBindCtx, displayName, &chEaten, &pMoniker);
if (hrcheck(hr, "Can't create parse display name of the filter"))
return NULL;
CComPtr<IBaseFilter> pFilter;
if (SUCCEEDED(hr))
{
hr = pMoniker->BindToObject (pBindCtx, NULL, IID_IBaseFilter, (void**)&pFilter);
if (hrcheck(hr, "Can't bind moniker to filter object"))
return NULL;
}
return pFilter;
}
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;
}
// {A753A1EC-973E-4718-AF8E-A3F554D45C44}
DEFINE_GUID(CLSID_AC3Filter,
0xA753A1EC, 0x973E, 0x4718, 0xAF, 0x8E, 0xA3, 0xF5, 0x54, 0xD4, 0x5C, 0x44); //ac3filter.ax
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 Virtual Cable 1
CComPtr<IBaseFilter> pVirtualCable1 = CreateFilter(L"@device:cm:(33D9A762-90C8-11D0-BD43-00A0C911CE86}\\Virtual Cable 1");
hr = pGraph->AddFilter(pVirtualCable1, L"Virtual Cable 1");
CHECK_HR(hr, "Can't add Virtual Cable 1 to graph");
//add AC3FILTER
CComPtr<IBaseFilter> pAC3FILTER;
hr = pAC3Filter.CoCreateInstance(CLSID_AC3Filter);
CHECK_HR(hr, "Can't create AC3Filter");
hr = pGraph->AddFilter(pAC3Filter, L"AC3Filter");
CHECK_HR(hr, "Can't add AC3Filter to graph");
//add DirectSound: Creative SB Extigy
CComPtr<IBaseFilter> pDirectSoundCreativeSBExtigy = CreateFilter(L"@device:cm:(E0F158E1-CB04-11D0-BD4E-00A0C911CE86}\\DirectSound: Creative SB Extigy:);
hr = pGraph->AddFilter(pDirectSoundCreativeSBExtigy, L"DirectSound: Creative SB Extigy");
CHECK_HR(hr, "Can't add DirectSound: Creative SB Extigy to graph");
//connect Virtual Cable 1 and AC3Filter
hr = pGraph->ConnectDirect(GetPin(pVirtualCable1, L"Capture"), GetPin(pAC3Filter, L"In"), NULL);
CHECK_HR(hr, "Can't connect Virtual Cable 1 and AC3Filter");
//connect AC3Filter and DirectSound: Creative SB Extigy
hr = pGraph->ConnectDirect(GetPin(pAC3Filter, L"Out"), GetPin(pDirectSoundCreativeSBExtigy, L"Audio Input pin (rendered)"), NULL);
return S_OK;
}
int main(int argc, char* argv[])
(
USES_CONVERSION;
CoInitialize(NULL);
CComPtr<IGraphBuilder> graph;
graph.CoCreateInstance(CLSID_FilterGraph);
if (argc<3) return 0;
printf("Building graph...\n");
HRESULT hr = BuildGraph(graph, T2W(argv[1]), T2W(argv[2]));
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;
while(!stop)
{
long ev=0, p1=0, p2=0;
Sleep(500);
printf(".");
if (mediaEvent->GetEvent(&ev, &p1, &p2, 0)==S_OK)
{
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;
}
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