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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef DIRECTSHOWPIN_H
#define DIRECTSHOWPIN_H
#include "directshowobject.h"
#include "directshowmediatype.h"
#include <qstring.h>
#include <qmutex.h>
QT_BEGIN_NAMESPACE
class DirectShowBaseFilter;
class DirectShowPin : public IPin
{
public:
virtual ~DirectShowPin();
QString name() const { return m_name; }
bool isConnected() const { return m_peerPin != NULL; }
virtual bool isMediaTypeSupported(const AM_MEDIA_TYPE *type) = 0;
virtual QList<DirectShowMediaType> supportedMediaTypes();
virtual bool setMediaType(const AM_MEDIA_TYPE *type);
virtual HRESULT completeConnection(IPin *pin);
virtual HRESULT connectionEnded();
virtual HRESULT setActive(bool active);
// IPin
STDMETHODIMP Connect(IPin *pReceivePin, const AM_MEDIA_TYPE *pmt) override;
STDMETHODIMP ReceiveConnection(IPin *pConnector, const AM_MEDIA_TYPE *pmt) override;
STDMETHODIMP Disconnect() override;
STDMETHODIMP ConnectedTo(IPin **ppPin) override;
STDMETHODIMP ConnectionMediaType(AM_MEDIA_TYPE *pmt) override;
STDMETHODIMP QueryPinInfo(PIN_INFO *pInfo) override;
STDMETHODIMP QueryId(LPWSTR *Id) override;
STDMETHODIMP QueryAccept(const AM_MEDIA_TYPE *pmt) override;
STDMETHODIMP EnumMediaTypes(IEnumMediaTypes **ppEnum) override;
STDMETHODIMP QueryInternalConnections(IPin **apPin, ULONG *nPin) override;
STDMETHODIMP EndOfStream() override;
STDMETHODIMP BeginFlush() override;
STDMETHODIMP EndFlush() override;
STDMETHODIMP NewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate) override;
STDMETHODIMP QueryDirection(PIN_DIRECTION *pPinDir) override;
protected:
DirectShowPin(DirectShowBaseFilter *filter, const QString &name, PIN_DIRECTION direction);
QMutex m_mutex;
DirectShowBaseFilter *m_filter;
QString m_name;
PIN_DIRECTION m_direction;
IPin *m_peerPin = nullptr;
DirectShowMediaType m_mediaType;
private:
Q_DISABLE_COPY(DirectShowPin)
HRESULT tryMediaTypes(IPin *pin, const AM_MEDIA_TYPE *type, IEnumMediaTypes *enumMediaTypes);
HRESULT tryConnect(IPin *pin, const AM_MEDIA_TYPE *type);
};
class DirectShowOutputPin : public DirectShowPin
{
public:
~DirectShowOutputPin() override;
// DirectShowPin
HRESULT completeConnection(IPin *pin) override;
HRESULT connectionEnded() override;
HRESULT setActive(bool active) override;
// IPin
STDMETHODIMP EndOfStream() override;
protected:
DirectShowOutputPin(DirectShowBaseFilter *filter, const QString &name);
IMemAllocator *m_allocator = nullptr;
IMemInputPin *m_inputPin = nullptr;
private:
Q_DISABLE_COPY(DirectShowOutputPin)
};
class DirectShowInputPin : public DirectShowPin
, public IMemInputPin
{
public:
~DirectShowInputPin() override;
const AM_SAMPLE2_PROPERTIES *currentSampleProperties() const { return &m_sampleProperties; }
// DirectShowPin
HRESULT connectionEnded() override;
HRESULT setActive(bool active) override;
// IPin
STDMETHODIMP EndOfStream() override;
STDMETHODIMP BeginFlush() override;
STDMETHODIMP EndFlush() override;
// IMemInputPin
STDMETHODIMP GetAllocator(IMemAllocator **ppAllocator) override;
STDMETHODIMP NotifyAllocator(IMemAllocator *pAllocator, BOOL bReadOnly) override;
STDMETHODIMP GetAllocatorRequirements(ALLOCATOR_PROPERTIES *pProps) override;
STDMETHODIMP Receive(IMediaSample *pSample) override;
STDMETHODIMP ReceiveMultiple(IMediaSample **pSamples, long nSamples,
long *nSamplesProcessed) override;
STDMETHODIMP ReceiveCanBlock() override;
protected:
DirectShowInputPin(DirectShowBaseFilter *filter, const QString &name);
IMemAllocator *m_allocator = nullptr;
bool m_flushing = false;
bool m_inErrorState = false;
AM_SAMPLE2_PROPERTIES m_sampleProperties;
private:
Q_DISABLE_COPY(DirectShowInputPin)
};
QT_END_NAMESPACE
#endif // DIRECTSHOWPIN_H
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