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/* This file is part of the KDE project.
Copyright (C) 2012 Digia Plc 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_QBASEFILTER_H
#define PHONON_QBASEFILTER_H
#include "phononds9_namespace.h"
#include <QtCore/QString>
#include <QtCore/QList>
#include <QtCore/QReadWriteLock>
#include <dshow.h>
QT_BEGIN_NAMESPACE
namespace Phonon
{
namespace DS9
{
class QPin;
class QBaseFilter : public IBaseFilter, public IMediaSeeking, public IMediaPosition
{
public:
QBaseFilter(const CLSID &clsid);
virtual ~QBaseFilter();
//implementation from IUnknown
STDMETHODIMP QueryInterface(REFIID iid, void** out);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
//implementation from IPersist
STDMETHODIMP GetClassID(CLSID *);
//implementation from IMediaFilter
STDMETHODIMP Stop();
STDMETHODIMP Pause();
STDMETHODIMP Run(REFERENCE_TIME);
STDMETHODIMP GetState(DWORD, FILTER_STATE*);
STDMETHODIMP SetSyncSource(IReferenceClock*);
STDMETHODIMP GetSyncSource(IReferenceClock**);
//implementation from IBaseFilter
STDMETHODIMP EnumPins(IEnumPins**);
STDMETHODIMP FindPin(LPCWSTR, IPin**);
STDMETHODIMP QueryFilterInfo(FILTER_INFO*);
STDMETHODIMP JoinFilterGraph(IFilterGraph*, LPCWSTR);
STDMETHODIMP QueryVendorInfo(LPWSTR*);
//implementation from IMediaSeeking
STDMETHODIMP GetCapabilities(DWORD *pCapabilities);
STDMETHODIMP CheckCapabilities(DWORD *pCapabilities);
STDMETHODIMP IsFormatSupported(const GUID *pFormat);
STDMETHODIMP QueryPreferredFormat(GUID *pFormat);
STDMETHODIMP GetTimeFormat(GUID *pFormat);
STDMETHODIMP IsUsingTimeFormat(const GUID *pFormat);
STDMETHODIMP SetTimeFormat(const GUID *pFormat);
STDMETHODIMP GetDuration(LONGLONG *pDuration);
STDMETHODIMP GetStopPosition(LONGLONG *pStop);
STDMETHODIMP GetCurrentPosition(LONGLONG *pCurrent);
STDMETHODIMP ConvertTimeFormat(LONGLONG *pTarget, const GUID *pTargetFormat, LONGLONG Source, const GUID *pSourceFormat);
STDMETHODIMP SetPositions(LONGLONG *pCurrent, DWORD dwCurrentFlags, LONGLONG *pStop, DWORD dwStopFlags);
STDMETHODIMP GetPositions(LONGLONG *pCurrent, LONGLONG *pStop);
STDMETHODIMP GetAvailable(LONGLONG *pEarliest, LONGLONG *pLatest);
STDMETHODIMP SetRate(double dRate);
STDMETHODIMP GetRate(double *dRate);
STDMETHODIMP GetPreroll(LONGLONG *pllPreroll);
//implementation from IMediaPosition
STDMETHODIMP get_Duration(REFTIME *plength);
STDMETHODIMP put_CurrentPosition(REFTIME llTime);
STDMETHODIMP get_CurrentPosition(REFTIME *pllTime);
STDMETHODIMP get_StopTime(REFTIME *pllTime);
STDMETHODIMP put_StopTime(REFTIME llTime);
STDMETHODIMP get_PrerollTime(REFTIME *pllTime);
STDMETHODIMP put_PrerollTime(REFTIME llTime);
STDMETHODIMP put_Rate(double dRate);
STDMETHODIMP get_Rate(double *pdRate);
STDMETHODIMP CanSeekForward(LONG *pCanSeekForward);
STDMETHODIMP CanSeekBackward(LONG *pCanSeekBackward);
//implementation from IDispatch (coming from IMediaPosition)
STDMETHODIMP GetTypeInfoCount(UINT *pctinfo);
STDMETHODIMP GetTypeInfo(UINT iTInfo, LCID lcid, ITypeInfo **ppTInfo);
STDMETHODIMP GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId);
STDMETHODIMP Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr);
//own methods
const QList<QPin *> pins() const;
void addPin(QPin *pin);
void removePin(QPin *pin);
IFilterGraph *graph() const;
FILTER_STATE state() const;
//reimplement this if you want specific processing of media sample
virtual HRESULT processSample(IMediaSample *);
private:
QList<QPin*> outputPins() const;
QList<QPin*> inputPins() const;
void *getUpStreamInterface(const IID &iid) const;
IMediaSeeking *getUpstreamMediaSeeking();
IMediaPosition *getUpstreamMediaPosition();
LONG m_refCount;
CLSID m_clsid;
QString m_name;
IReferenceClock *m_clock;
IFilterGraph *m_graph;
FILTER_STATE m_state;
QList<QPin *> m_pins;
mutable QReadWriteLock m_lock;
};
}
}
QT_END_NAMESPACE
#endif
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