HRESULT RenderFileToMMStream(WCHAR * pszFileName, IMultiMediaStream **ppMMStream)
{
IAMMultiMediaStream *pAMStream;
CoCreateInstance(CLSID_AMMultiMediaStream, NULL, CLSCTX_INPROC_SERVER,
IID_IAMMultiMediaStream, (void **)&pAMStream);
pAMStream->Initialize(STREAMTYPE_READ, AMMSF_NOGRAPHTHREAD, NULL);
pAMStream->AddMediaStream(NULL, &MSPID_PrimaryAudio, 0, NULL);
pAMStream->OpenFile(pszFileName, AMMSF_RUN);
*ppMMStream = pAMStream;
return S_OK;
}
bool SINMOVIE::Open(IDirectDraw* pDD, char* name, IMultiMediaStream** ptMMStream)
{
IAMMultiMediaStream *pAMStream;
WCHAR wPath[MAX_PATH];
if (FAILED(CoCreateInstance(CLSID_AMMultiMediaStream, NULL, CLSCTX_INPROC_SERVER, IID_IAMMultiMediaStream, (void **)&pAMStream)))
{
ShutDown();
return false;
}
if (FAILED(pAMStream->Initialize(STREAMTYPE_READ, 0, NULL)))
{
ShutDown();
return false;
}
if (FAILED(pAMStream->AddMediaStream(pDD, &MSPID_PrimaryVideo, 0, NULL)))
{
ShutDown();
return false;
}
if (FAILED(pAMStream->AddMediaStream(NULL, &MSPID_PrimaryAudio,
AMMSF_ADDDEFAULTRENDERER, NULL)))
{
ShutDown();
return false;
}
MultiByteToWideChar(CP_ACP, 0, name, -1, wPath, sizeof(wPath)/sizeof(wPath[0]));
if (FAILED(pAMStream->OpenFile(wPath, 0)))
{
ShutDown();
return false;
}
*ptMMStream = pAMStream;
pAMStream->AddRef();
pAMStream->Release();
return true;
}
// Open multimedia stream.
BOOL CDShow::Open(ZString& pFileName, IDirectDraw7 *pDD)
{
// Multimedia stream pointer
IAMMultiMediaStream *pAMStream;
IGraphBuilder *pGb; // 7/10 #110
IEnumFilters *pEfs;
IBasicAudio *pBa;
//7/29/09 we can now do stuff while the video plays
CoInitializeEx(NULL,COINIT_MULTITHREADED);
// Create Multimedia stream object
if (FAILED(CoCreateInstance(CLSID_AMMultiMediaStream, NULL, CLSCTX_INPROC_SERVER,
IID_IAMMultiMediaStream, (void **)&pAMStream)))
{
// Return FALSE to let caller know we failed.
return FALSE;
}
// Initialize Multimedia stream object
if (FAILED(pAMStream->Initialize(STREAMTYPE_READ, 0, NULL)))
{
// There are alot of possiblities to fail.....
return FALSE;
}
// Add primary video stream.
if (FAILED((pAMStream->AddMediaStream(pDD, &MSPID_PrimaryVideo, 0, NULL))))
{
return FALSE;
}
// Add default sound render to primary video stream,
// so sound will be played back automatically.
if (FAILED(pAMStream->AddMediaStream(NULL, &MSPID_PrimaryAudio, AMMSF_ADDDEFAULTRENDERER, NULL)))
{
// Return FALSE to let caller know we failed.
return FALSE;
}
// Convert filename to UNICODE.
// Notice the safe way to get the actual size of a string.
WCHAR wPath[MAX_PATH];
MultiByteToWideChar(CP_ACP, 0, pFileName, -1, wPath, sizeof(wPath)/sizeof(wPath[0]));
// Build the filter graph for our multimedia stream.
if (FAILED((pAMStream->OpenFile(wPath, 0))))
{
// Return FALSE to let caller know we failed.
return FALSE;
}
//7/10 #110
FILTER_INFO FilterInfo;
pAMStream->GetFilterGraph(&pGb);
pGb->EnumFilters(&pEfs);
IBaseFilter *pFilter;
unsigned long cFetched;
while(pEfs->Next(1, &pFilter, &cFetched) == S_OK) {
FILTER_INFO FilterInfo;
pFilter->QueryFilterInfo(&FilterInfo);
char szName[MAX_FILTER_NAME];
long cch = WideCharToMultiByte(CP_ACP,0,FilterInfo.achName,MAX_FILTER_NAME,szName,MAX_FILTER_NAME,0,0);
if (cch > 0) {
if (!strcmp("WMAudio Decoder DMO",szName)) {
// set the volume to music level
FilterInfo.pGraph->QueryInterface(IID_IBasicAudio,(void**)&pBa);
HKEY hKey;
DWORD dwResult = 0;
if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, ALLEGIANCE_REGISTRY_KEY_ROOT,0, KEY_READ, &hKey)) {
DWORD dwSize = sizeof(dwResult);
DWORD dwType = REG_DWORD;
::RegQueryValueEx(hKey, "MusicGain", NULL, &dwType, (BYTE*)&dwResult, &dwSize);
::RegCloseKey(hKey);
if (dwType != REG_DWORD)
dwResult = 0;
}
long vol = (dwResult * -1) * 100;
if (vol < -5000) {
vol = -10000;
}
pBa->put_Volume(vol);
pBa->Release();
}
if (FilterInfo.pGraph != NULL)
FilterInfo.pGraph->Release();
pFilter->Release();
}
}
pEfs->Release();
pGb->Release();
// Assign member to temperary stream pointer.
m_pMMStream = pAMStream;
// Add a reference to the file
pAMStream->AddRef();
// Get media stream interface
if (FAILED(m_pMMStream->GetMediaStream(MSPID_PrimaryVideo, &m_pPrimaryVideoStream)))
{
return FALSE;
}
// Get DirectDraw media stream interface
if (FAILED(m_pPrimaryVideoStream->QueryInterface(IID_IDirectDrawMediaStream,(void **)&m_pDDStream)))
{
return FALSE;
}
// Create stream sample
if (FAILED(m_pDDStream->CreateSample(NULL,NULL,0,&m_pSample)))
{
return FALSE;
}
// Get DirectDraw surface interface from Sample.
if (FAILED(m_pSample->GetSurface(&m_pDDSurface,&m_rSrcRect)))
{
return FALSE;
}
// Get DirectDraw surface7 interface
if (FAILED(m_pDDSurface->QueryInterface(IID_IDirectDrawSurface7,(void**)&m_pDDSurface7)))
{
return FALSE;
}
// Ok. Media is open now.
m_bMediaOpen=TRUE;
// If we are here, everything turned out ok. Return TRUE.
return TRUE;
}
