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123 lines
2.8 KiB
C++
123 lines
2.8 KiB
C++
/*
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* AudioAlsa.h - device-class that implements ALSA-PCM-output
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*
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* Copyright (c) 2004-2009 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
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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 "AudioDevice.h"
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#include "QAbstractListModel"
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class lcdSpinBox;
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class QComboBox;
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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()
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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();
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class DeviceListModel : public QAbstractListModel
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{
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public:
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// iface = {"pcm", "rawmidi", "timer", "seq"}
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// stream = {SND_PCM_STREAM_CAPTURE, SND_PCM_STREAM_PLAYBACK}
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DeviceListModel( const char * _iface, snd_pcm_stream_t stream );
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int rowCount( const QModelIndex & parent = QModelIndex() ) const;
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QVariant data( const QModelIndex & index,
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int role = Qt::DisplayRole ) const;
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private:
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typedef QPair<QString,QString> StringPair;
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typedef QList<StringPair> DeviceList;
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DeviceList m_devices;
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};
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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();
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private:
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QComboBox * m_device;
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lcdSpinBox * m_channels;
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void poo(const QString & s)
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{
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printf("Got %s\n", qPrintable( s ) );
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}
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} ;
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private:
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virtual void startProcessing();
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virtual void stopProcessing();
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virtual void applyQualitySettings();
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virtual void run();
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int setHWParams( const ch_cnt_t _channels, snd_pcm_access_t _access );
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int setSWParams();
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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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