mirror of
https://github.com/LMMS/lmms.git
synced 2026-01-24 14:28:21 -05:00
100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
/*
|
|
* AudioAlsa.h - device-class that implements ALSA-PCM-output
|
|
*
|
|
* Copyright (c) 2004-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
|
|
*
|
|
* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
|
|
*
|
|
* 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_ALSA_H
|
|
#define _AUDIO_ALSA_H
|
|
|
|
#include "lmmsconfig.h"
|
|
|
|
#ifdef LMMS_HAVE_ALSA
|
|
|
|
// older ALSA-versions might require this
|
|
#define ALSA_PCM_NEW_HW_PARAMS_API
|
|
|
|
#include <alsa/asoundlib.h>
|
|
|
|
#include "AudioDevice.h"
|
|
|
|
|
|
class LcdSpinBox;
|
|
class QLineEdit;
|
|
|
|
|
|
class AudioAlsa : public AudioDevice, public QThread
|
|
{
|
|
public:
|
|
AudioAlsa( bool & _success_ful, Mixer* mixer );
|
|
virtual ~AudioAlsa();
|
|
|
|
inline static QString name()
|
|
{
|
|
return QT_TRANSLATE_NOOP( "setupWidget",
|
|
"ALSA (Advanced Linux Sound Architecture)" );
|
|
}
|
|
|
|
static QString probeDevice();
|
|
|
|
|
|
class setupWidget : public AudioDevice::setupWidget
|
|
{
|
|
public:
|
|
setupWidget( QWidget * _parent );
|
|
virtual ~setupWidget();
|
|
|
|
virtual void saveSettings();
|
|
|
|
private:
|
|
QLineEdit * m_device;
|
|
LcdSpinBox * m_channels;
|
|
|
|
} ;
|
|
|
|
|
|
private:
|
|
virtual void startProcessing();
|
|
virtual void stopProcessing();
|
|
virtual void applyQualitySettings();
|
|
virtual void run();
|
|
|
|
int setHWParams( const ch_cnt_t _channels, snd_pcm_access_t _access );
|
|
int setSWParams();
|
|
int handleError( int _err );
|
|
|
|
|
|
snd_pcm_t * m_handle;
|
|
|
|
snd_pcm_uframes_t m_bufferSize;
|
|
snd_pcm_uframes_t m_periodSize;
|
|
|
|
snd_pcm_hw_params_t * m_hwParams;
|
|
snd_pcm_sw_params_t * m_swParams;
|
|
|
|
bool m_convertEndian;
|
|
|
|
} ;
|
|
|
|
#endif
|
|
|
|
#endif
|