/*  This file is part of the KDE project.+
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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+
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This library is free software: you can redistribute it and/or modify+
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it under the terms of the GNU Lesser General Public License as published by+
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the Free Software Foundation, either version 2.1 or 3 of the License.+
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+
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This library is distributed in the hope that it will be useful,+
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but WITHOUT ANY WARRANTY; without even the implied warranty of+
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+
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GNU Lesser General Public License for more details.+
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+
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You should have received a copy of the GNU Lesser General Public License+
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along with this library.  If not, see <http://www.gnu.org/licenses/>.+
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*/+
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+
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#ifndef PHONON_QPIN_H+
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#define PHONON_QPIN_H+
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+
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#include "phononds9_namespace.h"+
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+
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#include <QtCore/QString>+
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#include <QtCore/QVector>+
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#include <QtCore/QMutex>+
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+
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#include <dshow.h>+
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+
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QT_BEGIN_NAMESPACE+
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+
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namespace Phonon+
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{+
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    namespace DS9+
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    {+
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        class QBaseFilter;+
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+
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        //this is the base class for our self-implemented Pins+
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        class QPin : public IPin+
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        {+
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        public:+
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            QPin(QBaseFilter *parent, PIN_DIRECTION dir, const QVector<AM_MEDIA_TYPE> &mt);+
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            virtual ~QPin();+
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+
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            //reimplementation from IUnknown+
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            STDMETHODIMP QueryInterface(REFIID iid, void** out);+
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            STDMETHODIMP_(ULONG) AddRef();+
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            STDMETHODIMP_(ULONG) Release();+
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+
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            //reimplementation from IPin+
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            STDMETHODIMP Connect(IPin *,const AM_MEDIA_TYPE *);+
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            STDMETHODIMP ReceiveConnection(IPin *,const AM_MEDIA_TYPE *);+
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            STDMETHODIMP Disconnect();+
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            STDMETHODIMP ConnectedTo(IPin **);+
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            STDMETHODIMP ConnectionMediaType(AM_MEDIA_TYPE *);+
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            STDMETHODIMP QueryPinInfo(PIN_INFO *);+
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            STDMETHODIMP QueryDirection(PIN_DIRECTION *);+
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            STDMETHODIMP QueryId(LPWSTR*);+
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            STDMETHODIMP QueryAccept(const AM_MEDIA_TYPE*);+
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            STDMETHODIMP EnumMediaTypes(IEnumMediaTypes **);+
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            STDMETHODIMP QueryInternalConnections(IPin **, ULONG*);+
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            STDMETHODIMP EndOfStream();+
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            STDMETHODIMP BeginFlush();+
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            STDMETHODIMP EndFlush();+
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            STDMETHODIMP NewSegment(REFERENCE_TIME, REFERENCE_TIME, double);+
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+
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            QVector<AM_MEDIA_TYPE> mediaTypes() const;+
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+
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            HRESULT setAcceptedMediaType(const AM_MEDIA_TYPE &);+
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+
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            bool isFlushing() const;+
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            void setConnectedType(const AM_MEDIA_TYPE &type);+
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            const AM_MEDIA_TYPE &connectedType() const;+
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            void setConnected(IPin *pin);+
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            IPin *connected(bool = false) const;+
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            void setMemoryAllocator(IMemAllocator *alloc);+
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            IMemAllocator *memoryAllocator(bool = false) const;+
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            void createDefaultMemoryAllocator(ALLOCATOR_PROPERTIES * = 0);+
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            PIN_DIRECTION direction() const;+
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+
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            FILTER_STATE filterState() const;+
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+
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            static AM_MEDIA_TYPE copyMediaType(const AM_MEDIA_TYPE &type);+
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            static void freeMediaType(AM_MEDIA_TYPE *type);+
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            static void freeMediaType(const AM_MEDIA_TYPE &type);+
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+
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        protected:+
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            //this can be used by sub-classes+
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            mutable QMutex m_mutex;+
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            QBaseFilter * const m_parent;+
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            bool m_flushing;+
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+
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        private:+
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            HRESULT checkOutputMediaTypesConnection(IPin *pin);+
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            HRESULT checkOwnMediaTypesConnection(IPin *pin);+
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+
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            LONG m_refCount;+
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            IPin *m_connected;+
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            const PIN_DIRECTION m_direction;+
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            QVector<AM_MEDIA_TYPE> m_mediaTypes; //accepted media types+
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            AM_MEDIA_TYPE m_connectedType;+
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            IMemAllocator *m_memAlloc;+
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        };+
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+
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        //utility function+
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        class QAMMediaType : public AM_MEDIA_TYPE+
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        {+
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        public:+
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            ~QAMMediaType() +
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            {+
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                QPin::freeMediaType(*this);+
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            }+
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+
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        };+
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+
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    }+
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}+
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+
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QT_END_NAMESPACE+
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+
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#endif //PHONON_QPIN_H+
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