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| ** This file is part of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| #include "mfstream.h" |
| #include "sourceresolver.h" |
| #include <mferror.h> |
| #include <nserror.h> |
| #include <QtCore/qfile.h> |
| #include <QtCore/qdebug.h> |
| #include <QtMultimedia/qmediaplayer.h> |
| |
| /* |
| SourceResolver is separated from MFPlayerSession to handle the work of resolving a media source |
| asynchronously. You call SourceResolver::load to request resolving a media source asynchronously, |
| and it will emit mediaSourceReady() when resolving is done. You can call SourceResolver::cancel to |
| stop the previous load operation if there is any. |
| */ |
| |
| SourceResolver::SourceResolver() |
| : m_cRef(1) |
| , m_cancelCookie(0) |
| , m_sourceResolver(0) |
| , m_mediaSource(0) |
| , m_stream(0) |
| { |
| } |
| |
| SourceResolver::~SourceResolver() |
| { |
| shutdown(); |
| if (m_mediaSource) { |
| m_mediaSource->Release(); |
| m_mediaSource = NULL; |
| } |
| |
| if (m_cancelCookie) |
| m_cancelCookie->Release(); |
| if (m_sourceResolver) |
| m_sourceResolver->Release(); |
| } |
| |
| STDMETHODIMP SourceResolver::QueryInterface(REFIID riid, LPVOID *ppvObject) |
| { |
| if (!ppvObject) |
| return E_POINTER; |
| if (riid == IID_IUnknown) { |
| *ppvObject = static_cast<IUnknown*>(this); |
| } else if (riid == IID_IMFAsyncCallback) { |
| *ppvObject = static_cast<IMFAsyncCallback*>(this); |
| } else { |
| *ppvObject = NULL; |
| return E_NOINTERFACE; |
| } |
| AddRef(); |
| return S_OK; |
| } |
| |
| STDMETHODIMP_(ULONG) SourceResolver::AddRef(void) |
| { |
| return InterlockedIncrement(&m_cRef); |
| } |
| |
| STDMETHODIMP_(ULONG) SourceResolver::Release(void) |
| { |
| LONG cRef = InterlockedDecrement(&m_cRef); |
| if (cRef == 0) |
| this->deleteLater(); |
| return cRef; |
| } |
| |
| HRESULT STDMETHODCALLTYPE SourceResolver::Invoke(IMFAsyncResult *pAsyncResult) |
| { |
| QMutexLocker locker(&m_mutex); |
| |
| if (!m_sourceResolver) |
| return S_OK; |
| |
| MF_OBJECT_TYPE ObjectType = MF_OBJECT_INVALID; |
| IUnknown* pSource = NULL; |
| State *state = static_cast<State*>(pAsyncResult->GetStateNoAddRef()); |
| |
| HRESULT hr = S_OK; |
| if (state->fromStream()) |
| hr = m_sourceResolver->EndCreateObjectFromByteStream(pAsyncResult, &ObjectType, &pSource); |
| else |
| hr = m_sourceResolver->EndCreateObjectFromURL(pAsyncResult, &ObjectType, &pSource); |
| |
| if (state->sourceResolver() != m_sourceResolver) { |
| //This is a cancelled one |
| return S_OK; |
| } |
| |
| if (m_cancelCookie) { |
| m_cancelCookie->Release(); |
| m_cancelCookie = NULL; |
| } |
| |
| if (FAILED(hr)) { |
| emit error(hr); |
| return S_OK; |
| } |
| |
| if (m_mediaSource) { |
| m_mediaSource->Release(); |
| m_mediaSource = NULL; |
| } |
| |
| hr = pSource->QueryInterface(IID_PPV_ARGS(&m_mediaSource)); |
| pSource->Release(); |
| if (FAILED(hr)) { |
| emit error(hr); |
| return S_OK; |
| } |
| |
| emit mediaSourceReady(); |
| |
| return S_OK; |
| } |
| |
| HRESULT STDMETHODCALLTYPE SourceResolver::GetParameters(DWORD*, DWORD*) |
| { |
| return E_NOTIMPL; |
| } |
| |
| void SourceResolver::load(const QUrl &url, QIODevice* stream) |
| { |
| QMutexLocker locker(&m_mutex); |
| HRESULT hr = S_OK; |
| if (!m_sourceResolver) |
| hr = MFCreateSourceResolver(&m_sourceResolver); |
| |
| if (m_stream) { |
| m_stream->Release(); |
| m_stream = NULL; |
| } |
| |
| if (FAILED(hr)) { |
| qWarning() << "Failed to create Source Resolver!"; |
| emit error(hr); |
| } else if (stream) { |
| QString urlString = url.toString(); |
| m_stream = new MFStream(stream, false); |
| hr = m_sourceResolver->BeginCreateObjectFromByteStream( |
| m_stream, urlString.isEmpty() ? 0 : reinterpret_cast<LPCWSTR>(urlString.utf16()), |
| MF_RESOLUTION_MEDIASOURCE | MF_RESOLUTION_CONTENT_DOES_NOT_HAVE_TO_MATCH_EXTENSION_OR_MIME_TYPE |
| , NULL, &m_cancelCookie, this, new State(m_sourceResolver, true)); |
| if (FAILED(hr)) { |
| qWarning() << "Unsupported stream!"; |
| emit error(hr); |
| } |
| } else { |
| #ifdef DEBUG_MEDIAFOUNDATION |
| qDebug() << "loading :" << url; |
| qDebug() << "url path =" << url.path().mid(1); |
| #endif |
| #ifdef TEST_STREAMING |
| //Testing stream function |
| if (url.scheme() == QLatin1String("file")) { |
| stream = new QFile(url.path().mid(1)); |
| if (stream->open(QIODevice::ReadOnly)) { |
| m_stream = new MFStream(stream, true); |
| hr = m_sourceResolver->BeginCreateObjectFromByteStream( |
| m_stream, reinterpret_cast<const OLECHAR *>(url.toString().utf16()), |
| MF_RESOLUTION_MEDIASOURCE | MF_RESOLUTION_CONTENT_DOES_NOT_HAVE_TO_MATCH_EXTENSION_OR_MIME_TYPE, |
| NULL, &m_cancelCookie, this, new State(m_sourceResolver, true)); |
| if (FAILED(hr)) { |
| qWarning() << "Unsupported stream!"; |
| emit error(hr); |
| } |
| } else { |
| delete stream; |
| emit error(QMediaPlayer::FormatError); |
| } |
| } else |
| #endif |
| if (url.scheme() == QLatin1String("qrc")) { |
| // If the canonical URL refers to a Qt resource, open with QFile and use |
| // the stream playback capability to play. |
| stream = new QFile(QLatin1Char(':') + url.path()); |
| if (stream->open(QIODevice::ReadOnly)) { |
| m_stream = new MFStream(stream, true); |
| hr = m_sourceResolver->BeginCreateObjectFromByteStream( |
| m_stream, reinterpret_cast<const OLECHAR *>(url.toString().utf16()), |
| MF_RESOLUTION_MEDIASOURCE | MF_RESOLUTION_CONTENT_DOES_NOT_HAVE_TO_MATCH_EXTENSION_OR_MIME_TYPE, |
| NULL, &m_cancelCookie, this, new State(m_sourceResolver, true)); |
| if (FAILED(hr)) { |
| qWarning() << "Unsupported stream!"; |
| emit error(hr); |
| } |
| } else { |
| delete stream; |
| emit error(QMediaPlayer::FormatError); |
| } |
| } else { |
| hr = m_sourceResolver->BeginCreateObjectFromURL( |
| reinterpret_cast<const OLECHAR *>(url.toString().utf16()), |
| MF_RESOLUTION_MEDIASOURCE | MF_RESOLUTION_CONTENT_DOES_NOT_HAVE_TO_MATCH_EXTENSION_OR_MIME_TYPE, |
| NULL, &m_cancelCookie, this, new State(m_sourceResolver, false)); |
| if (FAILED(hr)) { |
| qWarning() << "Unsupported url scheme!"; |
| emit error(hr); |
| } |
| } |
| } |
| } |
| |
| void SourceResolver::cancel() |
| { |
| QMutexLocker locker(&m_mutex); |
| if (m_cancelCookie) { |
| m_sourceResolver->CancelObjectCreation(m_cancelCookie); |
| m_cancelCookie->Release(); |
| m_cancelCookie = NULL; |
| m_sourceResolver->Release(); |
| m_sourceResolver = NULL; |
| } |
| } |
| |
| void SourceResolver::shutdown() |
| { |
| if (m_mediaSource) { |
| m_mediaSource->Shutdown(); |
| m_mediaSource->Release(); |
| m_mediaSource = NULL; |
| } |
| |
| if (m_stream) { |
| m_stream->Release(); |
| m_stream = NULL; |
| } |
| } |
| |
| IMFMediaSource* SourceResolver::mediaSource() const |
| { |
| return m_mediaSource; |
| } |
| |
| ///////////////////////////////////////////////////////////////////////////////// |
| SourceResolver::State::State(IMFSourceResolver *sourceResolver, bool fromStream) |
| : m_cRef(0) |
| , m_sourceResolver(sourceResolver) |
| , m_fromStream(fromStream) |
| { |
| sourceResolver->AddRef(); |
| } |
| |
| SourceResolver::State::~State() |
| { |
| m_sourceResolver->Release(); |
| } |
| |
| STDMETHODIMP SourceResolver::State::QueryInterface(REFIID riid, LPVOID *ppvObject) |
| { |
| if (!ppvObject) |
| return E_POINTER; |
| if (riid == IID_IUnknown) { |
| *ppvObject = static_cast<IUnknown*>(this); |
| } else { |
| *ppvObject = NULL; |
| return E_NOINTERFACE; |
| } |
| AddRef(); |
| return S_OK; |
| } |
| |
| STDMETHODIMP_(ULONG) SourceResolver::State::AddRef(void) |
| { |
| return InterlockedIncrement(&m_cRef); |
| } |
| |
| STDMETHODIMP_(ULONG) SourceResolver::State::Release(void) |
| { |
| LONG cRef = InterlockedDecrement(&m_cRef); |
| if (cRef == 0) |
| delete this; |
| // For thread safety, return a temporary variable. |
| return cRef; |
| } |
| |
| IMFSourceResolver* SourceResolver::State::sourceResolver() const |
| { |
| return m_sourceResolver; |
| } |
| |
| bool SourceResolver::State::fromStream() const |
| { |
| return m_fromStream; |
| } |
| |
