// Open a URL for playback.
void Player_::open_url( ev::OpenURL const& openurl)
{
// 1. Create a new media session.
// 2. Create the media source.
// 3. Create the topology.
// 4. Queue the topology [asynchronous]
// 5. Start playback [asynchronous - does not happen in this method.]
IMFTopologyPtr pTopology;
IMFPresentationDescriptorPtr pSourcePD;
// Create the media session.
CreateSession();
// Create the media source.
m_pSource = CreateMediaSource(openurl.url());
// Create the presentation descriptor for the media source.
THROW_IF_ERR(m_pSource->CreatePresentationDescriptor(&pSourcePD));
// Create a partial topology.
pTopology = CreatePlaybackTopology(m_pSource, pSourcePD, m_hwndVideo);
// Set the topology on the media session.
THROW_IF_ERR(m_pSession->SetTopology(0, pTopology.Get()));
// OnOpenURL_();
// m_state = OpenPending;
// If SetTopology succeeds, the media session will queue an
// MESessionTopologySet event.
}
void Player_::OnNewPresentation(IMFMediaEventPtr pEvent)
{
IMFPresentationDescriptorPtr pPD;
IMFTopologyPtr pTopology;
// Get the presentation descriptor from the event.
THROW_IF_ERR(GetEventObject(pEvent.Get(), pPD.GetAddressOf()));
// Create a partial topology.
pTopology = CreatePlaybackTopology(m_pSource, pPD, m_hwndVideo);
// Set the topology on the media session.
THROW_IF_ERR(m_pSession->SetTopology(0, pTopology.Get()));
// m_state = OpenPending;
}
HRESULT CPlayer::EndOpenURL()
{
HRESULT hr;
// 3. Create the topology.
// 4. Queue the topology [asynchronous]
// 5. Start playback [asynchronous - does not happen in this method.]
IMFTopology *pTopology = NULL;
IMFPresentationDescriptor* pSourcePD = NULL;
// Create the presentation descriptor for the media source.
CHECK_HR(hr = m_pSource->CreatePresentationDescriptor(&pSourcePD));
// Create a partial topology.
CHECK_HR(hr = CreatePlaybackTopology(m_pSource, pSourcePD, m_hwndVideo, &pTopology, m_pEVRPresenter));
SetMediaInfo(pSourcePD);
// Set the topology on the media session.
CHECK_HR(hr = m_pSession->SetTopology(0, pTopology));
m_state = OpenPending;
_currentVolume = 1.0f;
// If SetTopology succeeds, the media session will queue an
// MESessionTopologySet event.
isDone = false;
done:
if (FAILED(hr))
{
m_state = Closed;
}
SafeRelease(&pSourcePD);
SafeRelease(&pTopology);
return hr;
}
HRESULT CPlayer::OpenMultipleURL(vector<const WCHAR *> &urls)
{
if (m_state == OpenPending) return S_FALSE;
IMFTopology *pTopology = NULL;
IMFPresentationDescriptor* pSourcePD = NULL;
//Some lolilol for the sequencer that's coming from the outerspace (see topoEdit src code)
IMFMediaSource* spSrc = NULL;
IMFPresentationDescriptor* spPD = NULL;
IMFMediaSourceTopologyProvider* spSrcTopoProvider = NULL;
HRESULT hr = S_OK;
if (_previousTopoID != 0)
{
hr = m_pSequencerSource->DeleteTopology(_previousTopoID);
_previousTopoID = 0;
}
SafeRelease(&m_pSequencerSource);
if (!m_pSequencerSource)
{
CHECK_HR(hr = MFCreateSequencerSource(NULL, &m_pSequencerSource));
CHECK_HR(hr = CreateSession());
CHECK_HR(hr = m_pSequencerSource->QueryInterface(IID_PPV_ARGS(&m_pSource)));
}
int nUrl = urls.size();
int nPresenters = v_EVRPresenters.size();
for (int i = nPresenters; i < nUrl; i++)
{
EVRCustomPresenter* presenter = new EVRCustomPresenter(hr);
presenter->SetVideoWindow(m_hwndVideo);
v_EVRPresenters.push_back(presenter);
}
// Create the media session.
//SafeRelease(&m_pSource);
for (int i = 0; i < nUrl; i++)
{
IMFMediaSource* source = NULL;
const WCHAR* sURL = urls[i];
// Create the media source.
CHECK_HR(hr = CreateMediaSource(sURL, &source));
return hr;
//All the following code will never be reached...
// Create the presentation descriptor for the media source.
CHECK_HR(hr = source->CreatePresentationDescriptor(&pSourcePD));
if (i == 0) hr = CreatePlaybackTopology(source, pSourcePD, m_hwndVideo, &pTopology, v_EVRPresenters[i]);
else CHECK_HR(hr = AddToPlaybackTopology(source, pSourcePD, m_hwndVideo, pTopology, v_EVRPresenters[i]));
//v_sources.push_back(source);
/*if (i==0) m_pSource = source; //keep one source for time tracking
else */ SafeRelease(&source);
SetMediaInfo(pSourcePD);
SafeRelease(&pSourcePD);
}
MFSequencerElementId NewID;
CHECK_HR(hr = m_pSequencerSource->AppendTopology(pTopology, SequencerTopologyFlags_Last, &NewID));
_previousTopoID = NewID;
CHECK_HR(hr = m_pSequencerSource->QueryInterface(IID_IMFMediaSource, (void**)&spSrc));
CHECK_HR(hr = spSrc->CreatePresentationDescriptor(&spPD));
CHECK_HR(hr = m_pSequencerSource->QueryInterface(IID_IMFMediaSourceTopologyProvider, (void**)&spSrcTopoProvider));
SafeRelease(&pTopology);
CHECK_HR(hr = spSrcTopoProvider->GetMediaSourceTopology(spPD, &pTopology));
//Now that we're done, we set the topolgy as it should be....
CHECK_HR(hr = m_pSession->SetTopology(0, pTopology));
m_state = OpenPending;
_currentVolume = 1.0f;
// If SetTopology succeeds, the media session will queue an
// MESessionTopologySet event.
done:
if (FAILED(hr))
{
m_state = Closed;
}
SafeRelease(&pSourcePD);
SafeRelease(&pTopology);
//SafeRelease(&spPD);
//SafeRelease(&spSrc);
//SafeRelease(&spSrcTopoProvider); //Uncoment this and get a crash in D3D shared texture..
return hr;
}
