AudioPulseAudio.h

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/*
 * AudioPulseAudio.h - device-class which implements PulseAudio-output
 *
 * Copyright (c) 2008-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
 *
 * This file is part of LMMS - https://lmms.io
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program (see COPYING); if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 */
 
#ifndef LMMS_AUDIO_PULSEAUDIO_H
#define LMMS_AUDIO_PULSEAUDIO_H
 
#include "lmmsconfig.h"
 
#ifdef LMMS_HAVE_PULSEAUDIO
 
#include <pulse/pulseaudio.h>
#include <QSemaphore>
#include <QThread>
 
#include "AudioDevice.h"
#include "AudioDeviceSetupWidget.h"
 
class QLineEdit;
 
namespace lmms
{
 
namespace gui
{
class LcdSpinBox;
}
 
 
class AudioPulseAudio : public QThread, public AudioDevice
{
        Q_OBJECT
public:
        AudioPulseAudio( bool & _success_ful, AudioEngine* audioEngine );
 
        inline static QString name()
        {
                return QT_TRANSLATE_NOOP( "AudioDeviceSetupWidget", "PulseAudio" );
        }
 
        static QString probeDevice();
 
 
        class setupWidget : public gui::AudioDeviceSetupWidget
        {
        public:
                setupWidget( QWidget * _parent );
                ~setupWidget() override;
 
                void saveSettings() override;
 
        private:
                QLineEdit * m_device;
                gui::LcdSpinBox * m_channels;
 
        } ;
 
 
        void streamWriteCallback( pa_stream * s, size_t length );
 
        void signalConnected( bool connected );
 
        pa_stream * m_s;
        pa_sample_spec m_sampleSpec;
        double m_latency;
 
private:
        void startProcessingImpl() override;
        void stopProcessingImpl() override;
        void run() override;
 
        bool m_connected;
        QSemaphore m_connectedSemaphore;
 
} ;
 
} // namespace lmms
 
#endif // LMMS_HAVE_PULSEAUDIO
 
#endif // LMMS_AUDIO_PULSEAUDIO_H