1 files changed, 89 insertions, 0 deletions
diff --git a/src/multimedia/wasm/qwasmaudiosink_p.h b/src/multimedia/wasm/qwasmaudiosink_p.h
new file mode 100644
index 000000000..975b7f6cc
--- /dev/null
+++ b/src/multimedia/wasm/qwasmaudiosink_p.h
@@ -0,0 +1,89 @@
+// Copyright (C) 2021 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 QWASMAUDIOSINK_H
+#define QWASMAUDIOSINK_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 <private/qaudiosystem_p.h>
+#include <QTimer>
+#include <QElapsedTimer>
+
+class ALData;
+class QIODevice;
+
+QT_BEGIN_NAMESPACE
+
+class QWasmAudioSink : public QPlatformAudioSink
+{
+    Q_OBJECT
+
+    QByteArray m_name;
+    ALData *aldata = nullptr;
+    QTimer *m_timer = nullptr;
+    QIODevice *m_device = nullptr;
+    QAudioFormat m_format;
+    QAudio::Error m_error = QAudio::NoError;
+    bool m_running = false;
+    QAudio::State m_state = QAudio::StoppedState;
+    QAudio::State m_suspendedInState = QAudio::SuspendedState;
+    int m_bufferSize = 0;
+    quint64 m_processed = 0;
+    QElapsedTimer m_elapsedTimer;
+    int m_bufferFragmentsCount = 10;
+    int m_notifyInterval = 0;
+    char *m_tmpData = nullptr;
+    int m_bufferFragmentSize = 0;
+    int m_lastNotified = 0;
+    int m_tmpDataOffset = 0;
+    int m_bufferFragmentsBusyCount = 0;
+    bool m_pullMode;
+    qreal m_volume = 1;
+
+    void loadALBuffers();
+    void unloadALBuffers();
+    void nextALBuffers();
+
+private slots:
+    void updateState();
+    void setError(QAudio::Error);
+
+public:
+    QWasmAudioSink(const QByteArray &device, QObject *parent);
+    ~QWasmAudioSink();
+
+public:
+    void start(QIODevice *device) override;
+    QIODevice *start() override;
+    void start(bool mode);
+    void stop() override;
+    void reset() override;
+    void suspend() override;
+    void resume() override;
+    qsizetype bytesFree() const override;
+    void setBufferSize(qsizetype value) override;
+    qsizetype bufferSize() const override;
+    qint64 processedUSecs() const override;
+    QAudio::Error error() const override;
+    QAudio::State state() const override;
+    void setFormat(const QAudioFormat &fmt) override;
+    QAudioFormat format() const override;
+    void setVolume(qreal volume) override;
+    qreal volume() const override;
+
+    friend class QWasmAudioSinkDevice;
+};
+
+QT_END_NAMESPACE
+
+#endif // QWASMAUDIOSINK_H