1 files changed, 96 insertions, 0 deletions
diff --git a/src/multimedia/audio/qaudiosystem_p.h b/src/multimedia/audio/qaudiosystem_p.h
new file mode 100644
index 000000000..4a0650e80
--- /dev/null
+++ b/src/multimedia/audio/qaudiosystem_p.h
@@ -0,0 +1,96 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QAUDIOSYSTEM_H
+#define QAUDIOSYSTEM_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtMultimedia/qtmultimediaglobal.h>
+
+#include <QtMultimedia/qaudio.h>
+#include <QtMultimedia/qaudioformat.h>
+#include <QtMultimedia/qaudiodevice.h>
+
+#include <QtCore/qelapsedtimer.h>
+#include <QtCore/private/qglobal_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QIODevice;
+
+class Q_MULTIMEDIA_EXPORT QAudioStateChangeNotifier : public QObject
+{
+    Q_OBJECT
+public:
+    QAudioStateChangeNotifier(QObject *parent = nullptr);
+
+signals:
+    void errorChanged(QAudio::Error error);
+    void stateChanged(QAudio::State state);
+};
+
+class Q_MULTIMEDIA_EXPORT QPlatformAudioSink : public QAudioStateChangeNotifier
+{
+    Q_OBJECT
+
+public:
+    QPlatformAudioSink(QObject *parent);
+    virtual void start(QIODevice *device) = 0;
+    virtual QIODevice* start() = 0;
+    virtual void stop() = 0;
+    virtual void reset() = 0;
+    virtual void suspend() = 0;
+    virtual void resume() = 0;
+    virtual qsizetype bytesFree() const = 0;
+    virtual void setBufferSize(qsizetype value) = 0;
+    virtual qsizetype bufferSize() const = 0;
+    virtual qint64 processedUSecs() const = 0;
+    virtual QAudio::Error error() const = 0;
+    virtual QAudio::State state() const = 0;
+    virtual void setFormat(const QAudioFormat& fmt) = 0;
+    virtual QAudioFormat format() const = 0;
+    virtual void setVolume(qreal) {}
+    virtual qreal volume() const;
+
+    QElapsedTimer elapsedTime;
+};
+
+class Q_MULTIMEDIA_EXPORT QPlatformAudioSource : public QAudioStateChangeNotifier
+{
+    Q_OBJECT
+
+public:
+    QPlatformAudioSource(QObject *parent);
+    virtual void start(QIODevice *device) = 0;
+    virtual QIODevice* start() = 0;
+    virtual void stop() = 0;
+    virtual void reset() = 0;
+    virtual void suspend()  = 0;
+    virtual void resume() = 0;
+    virtual qsizetype bytesReady() const = 0;
+    virtual void setBufferSize(qsizetype value) = 0;
+    virtual qsizetype bufferSize() const = 0;
+    virtual qint64 processedUSecs() const = 0;
+    virtual QAudio::Error error() const = 0;
+    virtual QAudio::State state() const = 0;
+    virtual void setFormat(const QAudioFormat& fmt) = 0;
+    virtual QAudioFormat format() const = 0;
+    virtual void setVolume(qreal) = 0;
+    virtual qreal volume() const = 0;
+
+    QElapsedTimer elapsedTime;
+};
+
+QT_END_NAMESPACE
+
+#endif // QAUDIOSYSTEM_H