1 files changed, 121 insertions, 0 deletions
diff --git a/src/multimedia/alsa/qalsaaudiosink_p.h b/src/multimedia/alsa/qalsaaudiosink_p.h
new file mode 100644
index 000000000..0f5a5aa5a
--- /dev/null
+++ b/src/multimedia/alsa/qalsaaudiosink_p.h
@@ -0,0 +1,121 @@
+// Copyright (C) 2016 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
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef QAUDIOOUTPUTALSA_H
+#define QAUDIOOUTPUTALSA_H
+
+#include <alsa/asoundlib.h>
+
+#include <QtCore/qfile.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qtimer.h>
+#include <QtCore/qstring.h>
+#include <QtCore/qstringlist.h>
+#include <QtCore/qelapsedtimer.h>
+#include <QtCore/qiodevice.h>
+
+#include <QtMultimedia/qaudio.h>
+#include <QtMultimedia/qaudiodevice.h>
+#include <private/qaudiosystem_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QAlsaAudioSink : public QPlatformAudioSink
+{
+    friend class AlsaOutputPrivate;
+    Q_OBJECT
+public:
+    QAlsaAudioSink(const QByteArray &device, QObject *parent);
+    ~QAlsaAudioSink();
+
+    qint64 write( const char *data, qint64 len );
+
+    void start(QIODevice* device) override;
+    QIODevice* start() override;
+    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) override;
+    qreal volume() const override;
+
+
+    QIODevice* audioSource = nullptr;
+    QAudioFormat settings;
+    QAudio::Error errorState = QAudio::NoError;
+    QAudio::State deviceState = QAudio::StoppedState;
+    QAudio::State suspendedInState = QAudio::SuspendedState;
+
+private slots:
+    void userFeed();
+    bool deviceReady();
+
+signals:
+    void processMore();
+
+private:
+    bool opened = false;
+    bool pullMode = true;
+    bool resuming = false;
+    int buffer_size = 0;
+    int period_size = 0;
+    qint64 totalTimeValue = 0;
+    unsigned int buffer_time = 100000;
+    unsigned int period_time = 20000;
+    snd_pcm_uframes_t buffer_frames;
+    snd_pcm_uframes_t period_frames;
+    int xrun_recovery(int err);
+
+    int setFormat();
+    bool open();
+    void close();
+
+    QTimer* timer = nullptr;
+    QByteArray m_device;
+    int bytesAvailable = 0;
+    qint64 elapsedTimeOffset = 0;
+    char* audioBuffer = nullptr;
+    snd_pcm_t* handle = nullptr;
+    snd_pcm_access_t access = SND_PCM_ACCESS_RW_INTERLEAVED;
+    snd_pcm_hw_params_t *hwparams = nullptr;
+    qreal m_volume = 1.0f;
+};
+
+class AlsaOutputPrivate : public QIODevice
+{
+    friend class QAlsaAudioSink;
+    Q_OBJECT
+public:
+    AlsaOutputPrivate(QAlsaAudioSink* audio);
+    ~AlsaOutputPrivate();
+
+    qint64 readData( char* data, qint64 len) override;
+    qint64 writeData(const char* data, qint64 len) override;
+
+private:
+    QAlsaAudioSink *audioDevice;
+};
+
+QT_END_NAMESPACE
+
+
+#endif