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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
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**
****************************************************************************/
#ifndef DIRECTSHOWIOSOURCE_H
#define DIRECTSHOWIOSOURCE_H
#include "directshowglobal.h"
#include "directshowioreader.h"
#include "directshowmediatype.h"
#include <QtCore/qfile.h>
QT_BEGIN_NAMESPACE
class DirectShowIOSource
: public IBaseFilter
, public IAMFilterMiscFlags
, public IPin
{
Q_DISABLE_COPY(DirectShowIOSource)
public:
DirectShowIOSource(DirectShowEventLoop *loop);
virtual ~DirectShowIOSource();
void setDevice(QIODevice *device);
void setAllocator(IMemAllocator *allocator);
// IUnknown
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject) override;
ULONG STDMETHODCALLTYPE AddRef() override;
ULONG STDMETHODCALLTYPE Release() override;
// IPersist
HRESULT STDMETHODCALLTYPE GetClassID(CLSID *pClassID) override;
// IMediaFilter
HRESULT STDMETHODCALLTYPE Run(REFERENCE_TIME tStart) override;
HRESULT STDMETHODCALLTYPE Pause() override;
HRESULT STDMETHODCALLTYPE Stop() override;
HRESULT STDMETHODCALLTYPE GetState(DWORD dwMilliSecsTimeout, FILTER_STATE *pState) override;
HRESULT STDMETHODCALLTYPE SetSyncSource(IReferenceClock *pClock) override;
HRESULT STDMETHODCALLTYPE GetSyncSource(IReferenceClock **ppClock) override;
// IBaseFilter
HRESULT STDMETHODCALLTYPE EnumPins(IEnumPins **ppEnum) override;
HRESULT STDMETHODCALLTYPE FindPin(LPCWSTR Id, IPin **ppPin) override;
HRESULT STDMETHODCALLTYPE JoinFilterGraph(IFilterGraph *pGraph, LPCWSTR pName) override;
HRESULT STDMETHODCALLTYPE QueryFilterInfo(FILTER_INFO *pInfo) override;
HRESULT STDMETHODCALLTYPE QueryVendorInfo(LPWSTR *pVendorInfo) override;
// IAMFilterMiscFlags
ULONG STDMETHODCALLTYPE GetMiscFlags() override;
// IPin
HRESULT STDMETHODCALLTYPE Connect(IPin *pReceivePin, const AM_MEDIA_TYPE *pmt) override;
HRESULT STDMETHODCALLTYPE ReceiveConnection(IPin *pConnector, const AM_MEDIA_TYPE *pmt) override;
HRESULT STDMETHODCALLTYPE Disconnect() override;
HRESULT STDMETHODCALLTYPE ConnectedTo(IPin **ppPin) override;
HRESULT STDMETHODCALLTYPE ConnectionMediaType(AM_MEDIA_TYPE *pmt) override;
HRESULT STDMETHODCALLTYPE QueryPinInfo(PIN_INFO *pInfo) override;
HRESULT STDMETHODCALLTYPE QueryId(LPWSTR *Id) override;
HRESULT STDMETHODCALLTYPE QueryAccept(const AM_MEDIA_TYPE *pmt) override;
HRESULT STDMETHODCALLTYPE EnumMediaTypes(IEnumMediaTypes **ppEnum) override;
HRESULT STDMETHODCALLTYPE QueryInternalConnections(IPin **apPin, ULONG *nPin) override;
HRESULT STDMETHODCALLTYPE EndOfStream() override;
HRESULT STDMETHODCALLTYPE BeginFlush() override;
HRESULT STDMETHODCALLTYPE EndFlush() override;
HRESULT STDMETHODCALLTYPE NewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop,
double dRate) override;
HRESULT STDMETHODCALLTYPE QueryDirection(PIN_DIRECTION *pPinDir) override;
private:
volatile LONG m_ref = 1;
FILTER_STATE m_state = State_Stopped;
DirectShowIOReader *m_reader = nullptr;
DirectShowEventLoop *m_loop;
IFilterGraph *m_graph = nullptr;
IReferenceClock *m_clock = nullptr;
IMemAllocator *m_allocator = nullptr;
IPin *m_peerPin = nullptr;
DirectShowMediaType m_connectionMediaType;
QList<DirectShowMediaType> m_supportedMediaTypes;
QString m_filterName;
const QString m_pinId = QLatin1String("Data");
bool m_queriedForAsyncReader = false;
QMutex m_mutex;
};
QT_END_NAMESPACE
#endif
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