How to play mp4 movie with DirectShow - c++

Question

Directshow can't play mp4 default.
I found GDCL MPEG-4 and it seems to decode mp4 file.
But sample is not found.
Could anyone tell me how to play mp4 with directshow using GDCL MPEG-4.
I have simple directshow sample below.
#include <iostream>
#include <dshow.h>
int main()
{
IGraphBuilder* pGraph = NULL;
IMediaControl* pControl = NULL;
IMediaEvent* pEvent = NULL;
// Initialize the COM library.
HRESULT hr = CoInitialize(NULL);
if (FAILED(hr))
{
printf("ERROR - Could not initialize COM library");
return 1;
}
// Create the filter graph manager and query for interfaces.
hr = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
IID_IGraphBuilder, (void**)&pGraph);
if (FAILED(hr))
{
printf("ERROR - Could not create the Filter Graph Manager.");
return 1;
}
hr = pGraph->QueryInterface(IID_IMediaControl, (void**)&pControl);
hr = pGraph->QueryInterface(IID_IMediaEvent, (void**)&pEvent);
// Build the graph. IMPORTANT: Change this string to a file on your system.
hr = pGraph->RenderFile(L"..\\BigBuckBunny360.wmv", NULL);
if (SUCCEEDED(hr))
{
// Run the graph.
hr = pControl->Run();
if (SUCCEEDED(hr))
{
// Wait for completion.
long evCode;
pEvent->WaitForCompletion(INFINITE, &evCode);
// Note: Do not use INFINITE in a real application, because it
// can block indefinitely.
}
else
{
std::cout << std::system_category().message(hr) << std::endl;
}
}
else
{
std::cout << std::system_category().message(hr) << std::endl;
}
pControl->Release();
pEvent->Release();
pGraph->Release();
CoUninitialize();
return 0;
}
I want to know usage of GDCL MPEG-4 with upper sample.