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/****************************************************************************
**
** Copyright (C) 2016 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 SAMPLEGRABBER_H
#define SAMPLEGRABBER_H
#include <QtCore/qmutex.h>
#include <QtCore/qlist.h>
#include <QtMultimedia/qaudioformat.h>
#include <mfapi.h>
#include <mfidl.h>
class MFAudioProbeControl;
class SampleGrabberCallback : public IMFSampleGrabberSinkCallback
{
public:
// IUnknown methods
STDMETHODIMP QueryInterface(REFIID iid, void** ppv);
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
// IMFClockStateSink methods
STDMETHODIMP OnClockStart(MFTIME hnsSystemTime, LONGLONG llClockStartOffset);
STDMETHODIMP OnClockStop(MFTIME hnsSystemTime);
STDMETHODIMP OnClockPause(MFTIME hnsSystemTime);
STDMETHODIMP OnClockRestart(MFTIME hnsSystemTime);
STDMETHODIMP OnClockSetRate(MFTIME hnsSystemTime, float flRate);
// IMFSampleGrabberSinkCallback methods
STDMETHODIMP OnSetPresentationClock(IMFPresentationClock* pClock);
STDMETHODIMP OnShutdown();
protected:
SampleGrabberCallback() : m_cRef(1) {}
public:
virtual ~SampleGrabberCallback() {}
private:
long m_cRef;
};
class AudioSampleGrabberCallback: public SampleGrabberCallback {
public:
void addProbe(MFAudioProbeControl* probe);
void removeProbe(MFAudioProbeControl* probe);
void setFormat(const QAudioFormat& format);
STDMETHODIMP OnProcessSample(REFGUID guidMajorMediaType, DWORD dwSampleFlags,
LONGLONG llSampleTime, LONGLONG llSampleDuration, const BYTE * pSampleBuffer,
DWORD dwSampleSize);
private:
QList<MFAudioProbeControl*> m_audioProbes;
QMutex m_audioProbeMutex;
QAudioFormat m_format;
};
#endif // SAMPLEGRABBER_H
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