Files
lmms/include/AudioJack.h
mmeeaallyynn 352ef8c25e Sample Track Recording with Jack backend (#7567)
Enable the `AudioJack` to take recorded input and push it to the `AudioEngine`. This adds functionality for `AudioJack` which already exists for `AudioSdl` and `AudioPortAudio`. Note that sample track recording in the LMMS core is not completed before #7786 .

This PR also removes the reading and saving of the channel number configuration in several places as it will default to `DEFAULT_CHANNELS` all the time anyway.

Co-authored-by: Johannes Lorenz <j.git@lorenz-ho.me>
Co-authored-by: Michael Gregorius <michael.gregorius.git@arcor.de>
2025-05-31 12:49:14 +02:00

140 lines
3.3 KiB
C++

/*
* AudioJack.h - support for JACK-transport
*
* Copyright (c) 2005-2009 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_JACK_H
#define LMMS_AUDIO_JACK_H
#include "lmmsconfig.h"
#ifdef LMMS_HAVE_JACK
#ifndef LMMS_HAVE_WEAKJACK
#include <jack/jack.h>
#else
#include <weak_libjack.h>
#endif
#include <atomic>
#include <vector>
#ifdef AUDIO_BUS_HANDLE_SUPPORT
#include <QMap>
#endif
#include "AudioDevice.h"
#include "AudioDeviceSetupWidget.h"
#ifdef AUDIO_BUS_HANDLE_SUPPORT
#include "AudioBusHandle.h"
#endif
class QLineEdit;
namespace lmms
{
class MidiJack;
class AudioJack : public QObject, public AudioDevice
{
Q_OBJECT
public:
AudioJack(bool& successful, AudioEngine* audioEngine);
~AudioJack() override;
// this is to allow the jack midi connection to use the same jack client connection
// the jack callback is handled here, we call the midi client so that it can read
// it's midi data during the callback
AudioJack* addMidiClient(MidiJack* midiClient);
void removeMidiClient() { m_midiClient = nullptr; }
jack_client_t* jackClient() { return m_client; };
inline static QString name()
{
return QT_TRANSLATE_NOOP("AudioDeviceSetupWidget", "JACK (JACK Audio Connection Kit)");
}
class setupWidget : public gui::AudioDeviceSetupWidget
{
public:
setupWidget(QWidget* parent);
void saveSettings() override;
private:
QLineEdit* m_clientName;
};
private slots:
void restartAfterZombified();
private:
bool initJackClient();
void resizeInputBuffer(jack_nframes_t nframes);
void startProcessing() override;
void stopProcessing() override;
void registerPort(AudioBusHandle* port) override;
void unregisterPort(AudioBusHandle* port) override;
void renamePort(AudioBusHandle* port) override;
int processCallback(jack_nframes_t nframes);
static int staticProcessCallback(jack_nframes_t nframes, void* udata);
static void shutdownCallback(void* _udata);
jack_client_t* m_client;
bool m_active;
std::atomic<bool> m_stopped;
std::atomic<MidiJack*> m_midiClient;
std::vector<jack_port_t*> m_outputPorts;
std::vector<jack_port_t*> m_inputPorts;
jack_default_audio_sample_t** m_tempOutBufs;
std::vector<SampleFrame> m_inputFrameBuffer;
SampleFrame* m_outBuf;
SampleFrame* m_inBuf;
f_cnt_t m_framesDoneInCurBuf;
f_cnt_t m_framesToDoInCurBuf;
#ifdef AUDIO_BUS_HANDLE_SUPPORT
struct StereoPort
{
jack_port_t* ports[2];
};
using JackPortMap = QMap<AudioBusHandle*, StereoPort>;
JackPortMap m_portMap;
#endif
signals:
void zombified();
};
} // namespace lmms
#endif // LMMS_HAVE_JACK
#endif // LMMS_AUDIO_JACK_H