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Diffstat (limited to 'src/plugins/wmf/player/mfstream.h')
| -rw-r--r-- | src/plugins/wmf/player/mfstream.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/plugins/wmf/player/mfstream.h b/src/plugins/wmf/player/mfstream.h new file mode 100644 index 000000000..985d42e96 --- /dev/null +++ b/src/plugins/wmf/player/mfstream.h @@ -0,0 +1,149 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef MFSTREAM_H +#define MFSTREAM_H + +#include <mfapi.h> +#include <mfidl.h> +#include <QtCore/qmutex.h> +#include <QtCore/qiodevice.h> +#include <QtCore/qcoreevent.h> + +QT_USE_NAMESPACE + +class MFStream : public QObject, public IMFByteStream +{ + Q_OBJECT +public: + MFStream(QIODevice *stream, bool ownStream); + + ~MFStream(); + + //from IUnknown + STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject); + + STDMETHODIMP_(ULONG) AddRef(void); + + STDMETHODIMP_(ULONG) Release(void); + + + //from IMFByteStream + STDMETHODIMP GetCapabilities(DWORD *pdwCapabilities); + + STDMETHODIMP GetLength(QWORD *pqwLength); + + STDMETHODIMP SetLength(QWORD); + + STDMETHODIMP GetCurrentPosition(QWORD *pqwPosition); + + STDMETHODIMP SetCurrentPosition(QWORD qwPosition); + + STDMETHODIMP IsEndOfStream(BOOL *pfEndOfStream); + + STDMETHODIMP Read(BYTE *pb, ULONG cb, ULONG *pcbRead); + + STDMETHODIMP BeginRead(BYTE *pb, ULONG cb, IMFAsyncCallback *pCallback, + IUnknown *punkState); + + STDMETHODIMP EndRead(IMFAsyncResult* pResult, ULONG *pcbRead); + + STDMETHODIMP Write(const BYTE *, ULONG, ULONG *); + + STDMETHODIMP BeginWrite(const BYTE *, ULONG , + IMFAsyncCallback *, + IUnknown *); + + STDMETHODIMP EndWrite(IMFAsyncResult *, + ULONG *); + + STDMETHODIMP Seek( + MFBYTESTREAM_SEEK_ORIGIN SeekOrigin, + LONGLONG llSeekOffset, + DWORD, + QWORD *pqwCurrentPosition); + + STDMETHODIMP Flush(); + + STDMETHODIMP Close(); + +private: + class AsyncReadState : public IUnknown + { + public: + AsyncReadState(BYTE *pb, ULONG cb); + + //from IUnknown + STDMETHODIMP QueryInterface(REFIID riid, LPVOID *ppvObject); + + STDMETHODIMP_(ULONG) AddRef(void); + + STDMETHODIMP_(ULONG) Release(void); + + BYTE* pb() const; + ULONG cb() const; + ULONG bytesRead() const; + + void setBytesRead(ULONG cbRead); + + private: + long m_cRef; + BYTE *m_pb; + ULONG m_cb; + ULONG m_cbRead; + }; + + long m_cRef; + QIODevice *m_stream; + bool m_ownStream; + DWORD m_workQueueId; + QMutex m_mutex; + + void doRead(); + +private Q_SLOTS: + void handleReadyRead(); + +protected: + void customEvent(QEvent *event); + IMFAsyncResult *m_currentReadResult; +}; + +#endif
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