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/*
* AudioPortAudio.h - device-class that performs PCM-output via PortAudio
*
* Copyright (c) 2008 Csaba Hruska <csaba.hruska/at/gmail.com>
*
* 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 AUDIO_PORTAUDIO_H
#define AUDIO_PORTAUDIO_H
#include <QtCore/QObject>
#include "lmmsconfig.h"
#include "ComboBoxModel.h"
class AudioPortAudioSetupUtil : public QObject
{
Q_OBJECT
public slots:
void updateBackends();
void updateDevices();
void updateChannels();
public:
ComboBoxModel m_backendModel;
ComboBoxModel m_deviceModel;
} ;
#ifdef LMMS_HAVE_PORTAUDIO
#include <portaudio.h>
#include <QtCore/QSemaphore>
#include "AudioDevice.h"
#include "AudioDeviceSetupWidget.h"
#if defined paNeverDropInput || defined paNonInterleaved
# define PORTAUDIO_V19
#else
# define PORTAUDIO_V18
#endif
class ComboBox;
class LcdSpinBox;
class AudioPortAudio : public AudioDevice
{
public:
AudioPortAudio( bool & _success_ful, Mixer* mixer );
virtual ~AudioPortAudio();
inline static QString name()
{
return QT_TRANSLATE_NOOP( "setupWidget", "PortAudio" );
}
int process_callback( const float *_inputBuffer,
float * _outputBuffer,
unsigned long _framesPerBuffer );
class setupWidget : public AudioDeviceSetupWidget
{
public:
setupWidget( QWidget * _parent );
virtual ~setupWidget();
virtual void saveSettings();
virtual void show();
private:
ComboBox * m_backend;
ComboBox * m_device;
AudioPortAudioSetupUtil m_setupUtil;
} ;
private:
virtual void startProcessing();
virtual void stopProcessing();
virtual void applyQualitySettings();
#ifdef PORTAUDIO_V19
static int _process_callback( const void *_inputBuffer, void * _outputBuffer,
unsigned long _framesPerBuffer,
const PaStreamCallbackTimeInfo * _timeInfo,
PaStreamCallbackFlags _statusFlags,
void *arg );
#else
#define paContinue 0
#define paComplete 1
#define Pa_GetDeviceCount Pa_CountDevices
#define Pa_GetDefaultInputDevice Pa_GetDefaultInputDeviceID
#define Pa_GetDefaultOutputDevice Pa_GetDefaultOutputDeviceID
#define Pa_IsStreamActive Pa_StreamActive
static int _process_callback( void * _inputBuffer, void * _outputBuffer,
unsigned long _framesPerBuffer, PaTimestamp _outTime, void * _arg );
typedef double PaTime;
typedef PaDeviceID PaDeviceIndex;
typedef struct PaStreamParameters
{
PaDeviceIndex device;
int channelCount;
PaSampleFormat sampleFormat;
PaTime suggestedLatency;
void *hostApiSpecificStreamInfo;
} PaStreamParameters;
#endif
PaStream * m_paStream;
PaStreamParameters m_outputParameters;
PaStreamParameters m_inputParameters;
bool m_wasPAInitError;
surroundSampleFrame * m_outBuf;
int m_outBufPos;
int m_outBufSize;
bool m_stopped;
} ;
#endif
#endif
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