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/* BEGIN_COMMON_COPYRIGHT_HEADER
* (c)LGPL2+
*
* LXQt - a lightweight, Qt based, desktop toolset
* https://lxqt.org
*
* Copyright: 2012 Razor team
* Authors:
* Johannes Zellner <webmaster@nebulon.de>
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* END_COMMON_COPYRIGHT_HEADER */
#ifndef PULSEAUDIOENGINE_H
#define PULSEAUDIOENGINE_H
#include "audioengine.h"
#include <QObject>
#include <QList>
#include <QTimer>
#include <QMap>
#include <pulse/pulseaudio.h>
// PA_VOLUME_UI_MAX is only supported since pulseaudio 0.9.23
#ifndef PA_VOLUME_UI_MAX
#define PA_VOLUME_UI_MAX (pa_sw_volume_from_dB(+11.0))
#endif
class AudioDevice;
class PulseAudioEngine : public AudioEngine
{
Q_OBJECT
public:
PulseAudioEngine(QObject *parent = nullptr);
~PulseAudioEngine();
virtual const QString backendName() const { return QLatin1String("PulseAudio"); }
int volumeMax(AudioDevice */*device*/) const { return m_maximumVolume; }
void requestSinkInfoUpdate(uint32_t idx);
void removeSink(uint32_t idx);
void addOrUpdateSink(const pa_sink_info *info);
pa_context_state_t contextState() const { return m_contextState; }
bool ready() const { return m_ready; }
pa_threaded_mainloop *mainloop() const { return m_mainLoop; }
public slots:
void commitDeviceVolume(AudioDevice *device);
void retrieveSinkInfo(uint32_t idx);
void setMute(AudioDevice *device, bool state);
void setContextState(pa_context_state_t state);
void setIgnoreMaxVolume(bool ignore);
signals:
void sinkInfoChanged(uint32_t idx);
void contextStateChanged(pa_context_state_t state);
void readyChanged(bool ready);
private slots:
void handleContextStateChanged();
void connectContext();
private:
void retrieveSinks();
void setupSubscription();
pa_mainloop_api *m_mainLoopApi;
pa_threaded_mainloop *m_mainLoop;
pa_context *m_context;
pa_context_state_t m_contextState;
bool m_ready;
QTimer m_reconnectionTimer;
int m_maximumVolume;
QMap<AudioDevice *, pa_cvolume> m_cVolumeMap;
};
#endif // PULSEAUDIOENGINE_H
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