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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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 QAUDIOINPUTPULSE_H
#define QAUDIOINPUTPULSE_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/private/qringbuffer_p.h>
#include "qaudio.h"
#include "qaudiodeviceinfo.h"
#include <private/qaudiosystem_p.h>
#include <private/qgstutils_p.h>
#include <private/qgstpipeline_p.h>
#include <gst/app/gstappsink.h>
QT_BEGIN_NAMESPACE
class GStreamerInputPrivate;
class QGStreamerAudioInput
: public QAbstractAudioInput
{
Q_OBJECT
friend class GStreamerInputPrivate;
public:
QGStreamerAudioInput(const QAudioDeviceInfo &device);
~QGStreamerAudioInput();
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:
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);
QAudioDeviceInfo 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;
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(QGStreamerAudioInput *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:
QGStreamerAudioInput *m_audioDevice;
};
QT_END_NAMESPACE
#endif
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