Audioprobe implementation for wmf backend.

Change-Id: I63af91af870cb92c838c1ab5d4752815aa60a03f
Reviewed-by: Ling Hu <ling.hu@nokia.com>

1 files changed, 95 insertions, 0 deletions

diff --git a/src/plugins/wmf/samplegrabber.h b/src/plugins/wmf/samplegrabber.h
new file mode 100644
index 000000000..e639eac21
--- /dev/null
+++ b/src/plugins/wmf/samplegrabber.h
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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) {}
+
+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