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// 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 QAUDIOINPUTGSTREAMER_H
#define QAUDIOINPUTGSTREAMER_H
#include <QtCore/qfile.h>
#include <QtCore/qtimer.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>
#include <QtCore/qelapsedtimer.h>
#include <QtCore/qiodevice.h>
#include <QtCore/qmutex.h>
#include <QtCore/qatomic.h>
#include <QtCore/private/qringbuffer_p.h>
#include "qaudio.h"
#include "qaudiodevice.h"
#include <private/qaudiosystem_p.h>
#include <qgstutils_p.h>
#include <qgstpipeline_p.h>
#include <gst/app/gstappsink.h>
QT_BEGIN_NAMESPACE
class GStreamerInputPrivate;
class QGStreamerAudioSource
: public QPlatformAudioSource
{
Q_OBJECT
friend class GStreamerInputPrivate;
public:
QGStreamerAudioSource(const QAudioDevice &device, QObject *parent);
~QGStreamerAudioSource();
void start(QIODevice *device) override;
QIODevice *start() override;
void stop() override;
void reset() override;
void suspend() override;
void resume() override;
qsizetype bytesReady() 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 &format) override;
QAudioFormat format() const override;
void setVolume(qreal volume) override;
qreal volume() const override;
private Q_SLOTS:
void newDataAvailable(GstSample *sample);
private:
void setState(QAudio::State state);
void setError(QAudio::Error error);
QGstElement createAppSink();
static GstFlowReturn new_sample(GstAppSink *, gpointer user_data);
static void eos(GstAppSink *, gpointer user_data);
bool open();
void close();
static gboolean busMessage(GstBus *bus, GstMessage *msg, gpointer user_data);
QAudioDevice m_info;
qint64 m_bytesWritten = 0;
QIODevice *m_audioSink = nullptr;
QAudioFormat m_format;
QAudio::Error m_errorState = QAudio::NoError;
QAudio::State m_deviceState = QAudio::StoppedState;
qreal m_volume = 1.;
QRingBuffer m_buffer;
QAtomicInteger<bool> m_pullMode = true;
bool m_opened = false;
int m_bufferSize = 0;
qint64 m_elapsedTimeOffset = 0;
QElapsedTimer m_timeStamp;
QByteArray m_device;
QByteArray m_tempBuffer;
QGstElement gstInput;
QGstPipeline gstPipeline;
QGstElement gstVolume;
QGstElement gstAppSink;
};
class GStreamerInputPrivate : public QIODevice
{
Q_OBJECT
public:
GStreamerInputPrivate(QGStreamerAudioSource *audio);
~GStreamerInputPrivate() {};
qint64 readData(char *data, qint64 len) override;
qint64 writeData(const char *data, qint64 len) override;
qint64 bytesAvailable() const override;
bool isSequential() const override { return true; }
private:
QGStreamerAudioSource *m_audioDevice;
};
QT_END_NAMESPACE
#endif
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