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