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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1097 0778d3d1-df1d-0410-868b-ea421aaaa00d
105 lines
2.3 KiB
C++
105 lines
2.3 KiB
C++
/*
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* audio_alsa.h - device-class that implements ALSA-PCM-output
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*
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* Copyright (c) 2004-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _AUDIO_ALSA_H
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#define _AUDIO_ALSA_H
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#include "lmmsconfig.h"
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#ifdef LMMS_HAVE_ALSA_ASOUNDLIB_H
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#ifndef ALSA_SUPPORT
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#define ALSA_SUPPORT
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#endif
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// older ALSA-versions might require this
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#define ALSA_PCM_NEW_HW_PARAMS_API
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#include <alsa/asoundlib.h>
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#include "audio_device.h"
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class lcdSpinBox;
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class QLineEdit;
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class audioALSA : public audioDevice, public QThread
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{
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public:
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audioALSA( bool & _success_ful, mixer * _mixer );
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virtual ~audioALSA();
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inline static QString name( void )
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{
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return( QT_TRANSLATE_NOOP( "setupWidget",
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"ALSA (Advanced Linux Sound Architecture)" ) );
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}
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static QString probeDevice( void );
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class setupWidget : public audioDevice::setupWidget
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{
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public:
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setupWidget( QWidget * _parent );
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virtual ~setupWidget();
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virtual void saveSettings( void );
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private:
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QLineEdit * m_device;
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lcdSpinBox * m_channels;
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} ;
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private:
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virtual void startProcessing( void );
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virtual void stopProcessing( void );
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virtual void applyQualitySettings( void );
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virtual void run( void );
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int setHWParams( const ch_cnt_t _channels, snd_pcm_access_t _access );
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int setSWParams( void );
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int handleError( int _err );
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snd_pcm_t * m_handle;
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snd_pcm_uframes_t m_bufferSize;
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snd_pcm_uframes_t m_periodSize;
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snd_pcm_hw_params_t * m_hwParams;
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snd_pcm_sw_params_t * m_swParams;
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bool m_convertEndian;
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} ;
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#endif
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#endif
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