HRESULT CPlayer::CreateTopologyFromSource(IMFTopology **ppTopology)
{
TRACE((L"CPlayer::CreateTopologyFromSource\n"));
assert(m_pSession != NULL);
assert(m_pSource != NULL);
HRESULT hr = S_OK;
IMFTopology *pTopology = NULL;
IMFPresentationDescriptor* pSourcePD = NULL;
DWORD cSourceStreams = 0;
// Create a new topology.
CHECK_HR(hr = MFCreateTopology(&pTopology));
// Create the presentation descriptor for the media source.
CHECK_HR(hr = m_pSource->CreatePresentationDescriptor(&pSourcePD));
// Get the number of streams in the media source.
CHECK_HR(hr = pSourcePD->GetStreamDescriptorCount(&cSourceStreams));
TRACE((L"Stream count: %d\n", cSourceStreams));
// For each stream, create the topology nodes and add them to the topology.
for (DWORD i = 0; i < cSourceStreams; i++)
{
CHECK_HR(hr = AddBranchToPartialTopology(pTopology, pSourcePD, i));
}
// Return the IMFTopology pointer to the caller.
if (SUCCEEDED(hr))
{
*ppTopology = pTopology;
(*ppTopology)->AddRef();
}
done:
SAFE_RELEASE(pTopology);
SAFE_RELEASE(pSourcePD);
return hr;
}
// Create a playback topology from a media source.
// Receives a pointer to the topology.
IMFTopologyPtr CreatePlaybackTopology(
IMFMediaSourcePtr pSource, // Media source.
IMFPresentationDescriptorPtr pPD, // Presentation descriptor.
HWND hVideoWnd // Video window.
)
{
IMFTopologyPtr pTopology;
DWORD cSourceStreams = 0;
// Create a new topology.
THROW_IF_ERR(MFCreateTopology(&pTopology));
// Get the number of streams in the media source.
THROW_IF_ERR(pPD->GetStreamDescriptorCount(&cSourceStreams));
// For each stream, create the topology nodes and add them to the topology.
for (DWORD i = 0; i < cSourceStreams; i++)
{
AddBranchToPartialTopology(pTopology, pSource, pPD, i, hVideoWnd);
}
// Return the IMFTopology pointer to the caller.
return pTopology;
}
HRESULT tTVPMFPlayer::CreateVideoPlayer() {
if( MediaSession.p ) {
return S_OK; // 既に作成済み
}
HRESULT hr = CreateChildWindow();
if( hr != S_OK ) return hr;
HWND hWnd = GetChildWindow();
if( hWnd == NULL || hWnd == INVALID_HANDLE_VALUE )
return E_FAIL;
if( FAILED(hr = MFCreateMediaSession( NULL, &MediaSession )) ) {
TVPThrowExceptionMessage(L"Faild to create Media session.");
}
if( FAILED(hr = MediaSession->BeginGetEvent( PlayerCallback, NULL )) ) {
TVPThrowExceptionMessage(L"Faild to begin get event.");
}
CComPtr<IMFSourceResolver> pSourceResolver;
if( FAILED(hr = MFCreateSourceResolver(&pSourceResolver)) ) {
TVPThrowExceptionMessage(L"Faild to create source resolver.");
}
MF_OBJECT_TYPE ObjectType = MF_OBJECT_INVALID;
CComPtr<IUnknown> pSource;
if( FAILED(hr = pSourceResolver->CreateObjectFromByteStream( ByteStream, StreamName.c_str(), MF_RESOLUTION_MEDIASOURCE, NULL, &ObjectType, (IUnknown**)&pSource )) ) {
//if( FAILED(hr = pSourceResolver->CreateObjectFromURL( L"C:\\krkrz\\bin\\win32\\data\\test.mp4",
// MF_RESOLUTION_MEDIASOURCE, NULL, &ObjectType, (IUnknown**)&pSource)) ) {
TVPThrowExceptionMessage(L"Faild to open stream.");
}
if( ObjectType != MF_OBJECT_MEDIASOURCE ) {
TVPThrowExceptionMessage(L"Invalid media source.");
}
//CComPtr<IMFMediaSource> pMediaSource;
if( FAILED(hr = pSource.QueryInterface(&MediaSource)) ) {
TVPThrowExceptionMessage(L"Faild to query Media source.");
}
if( FAILED(hr = MFCreateTopology(&Topology)) ) {
TVPThrowExceptionMessage(L"Faild to create Topology.");
}
CComPtr<IMFPresentationDescriptor> pPresentationDescriptor;
if( FAILED(hr = MediaSource->CreatePresentationDescriptor(&pPresentationDescriptor)) ) {
TVPThrowExceptionMessage(L"Faild to create Presentation Descriptor.");
}
DWORD streamCount;
if( FAILED(hr = pPresentationDescriptor->GetStreamDescriptorCount(&streamCount)) ) {
TVPThrowExceptionMessage(L"Faild to get stream count.");
}
if( streamCount < 1 ) {
TVPThrowExceptionMessage(L"Not found media stream.");
}
for( DWORD i = 0; i < streamCount; i++ ) {
if( FAILED(hr = AddBranchToPartialTopology(Topology, MediaSource, pPresentationDescriptor, i, hWnd)) ) {
TVPThrowExceptionMessage(L"Faild to add nodes.");
}
}
pPresentationDescriptor->GetUINT64(MF_PD_DURATION, (UINT64*)&HnsDuration);
if( FAILED(hr = MediaSession->SetTopology( 0, Topology )) ) {
TVPThrowExceptionMessage(L"Faild to set topology.");
}
return hr;
}
