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/***************************************************************************
* Copyright (C) 2006-2021 by Ilya Kotov *
* forkotov02@ya.ru *
* *
* 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; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef OUTPUTPIPEWIRE_H
#define OUTPUTPIPEWIRE_H
#include <QObject>
#include <QHash>
#include <pipewire/pipewire.h>
#include <spa/param/audio/format-utils.h>
#include <qmmp/output.h>
#include <qmmp/volume.h>
class VolumePipeWire;
/**
@author Ilya Kotov <forkotov02@ya.ru>
*/
class OutputPipeWire : public Output
{
public:
OutputPipeWire();
~OutputPipeWire();
bool initialize(quint32, ChannelMap map, Qmmp::AudioFormat format) override;
//output api
qint64 latency() override;
qint64 writeAudio(unsigned char *data, qint64 maxSize) override;
void drain() override;
void reset() override;
void suspend() override;
void resume() override;
// helper functions
void setMuted(bool mute);
void setVolume(const VolumeSettings &v);
static OutputPipeWire *instance;
static VolumePipeWire *volumeControl;
private:
// helper functions
void uninitialize();
//callbacks
static void onProcess(void *data);
static void onDrained(void *data);
static void onCoreEventDone(void *data, uint32_t id, int seq);
static void onRegistryEventGlobal(void *data, uint32_t id,
uint32_t permissions, const char *type,
uint32_t version, const struct spa_dict *props);
static void onStateChanged(void *data, enum pw_stream_state old,
enum pw_stream_state state, const char *error);
// PipeWire objects
struct pw_thread_loop *m_loop = nullptr;
struct pw_stream *m_stream = nullptr;
pw_context *m_context = nullptr;
pw_core *m_core = nullptr;
pw_registry *m_registry = nullptr;
spa_hook m_coreListener = {};
spa_hook m_streamListener = {};
spa_hook m_registryListener = {};
int m_coreInitSeq = 0;
bool m_inited = false;
bool m_hasSinks = false;
bool m_ignoreStateChange = false;
unsigned char *m_buffer = nullptr;
quint32 m_buffer_at = 0;
quint32 m_bufferSize = 0;
quint32 m_frames = 0;
quint32 m_stride = 0;
QHash <Qmmp::ChannelPosition, spa_audio_channel> m_pw_channels;
};
class VolumePipeWire : public Volume
{
public:
VolumePipeWire();
~VolumePipeWire();
void setVolume(const VolumeSettings &vol) override;
VolumeSettings volume() const override;
bool isMuted() const override;
void setMuted(bool mute) override;
VolumeFlags flags() const override;
private:
VolumeSettings m_volume;
bool m_muted = false;
};
#endif // OUTPUTPIPEWIRE_H
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