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e32eed940f
* new class for easily rendering a project into a file * when changing quality-settings tell audio-devices about it so that they can adjust their output-samplerate git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@958 0778d3d1-df1d-0410-868b-ea421aaaa00d
109 lines
2.5 KiB
C++
109 lines
2.5 KiB
C++
/*
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* audio_file_device.h - base-class for audio-device-classes which write
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* their output into a file
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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_FILE_DEVICE_H
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#define _AUDIO_FILE_DEVICE_H
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#include <QtCore/QFile>
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#include "audio_device.h"
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class audioFileDevice : public audioDevice
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{
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public:
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audioFileDevice( const sample_rate_t _sample_rate,
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const ch_cnt_t _channels, const QString & _file,
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const bool _use_vbr,
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const bitrate_t _nom_bitrate,
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const bitrate_t _min_bitrate,
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const bitrate_t _max_bitrate,
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mixer * _mixer );
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virtual ~audioFileDevice();
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QString outputFile( void ) const
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{
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return( m_outputFile.fileName() );
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}
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protected:
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Sint32 writeData( const void * _data, Sint32 _len );
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void seekToBegin( void );
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inline bool useVBR( void ) const
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{
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return( m_useVbr );
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}
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inline bitrate_t nominalBitrate( void ) const
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{
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return( m_nomBitrate );
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}
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inline bitrate_t minBitrate( void ) const
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{
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return( m_minBitrate );
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}
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inline bitrate_t maxBitrate( void ) const
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{
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return( m_maxBitrate );
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}
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inline bool outputFileOpened( void ) const
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{
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return( m_outputFile.isOpen() );
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}
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private:
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QFile m_outputFile;
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bool m_useVbr;
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bitrate_t m_nomBitrate;
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bitrate_t m_minBitrate;
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bitrate_t m_maxBitrate;
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} ;
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typedef audioFileDevice * ( * audioFileDeviceInstantiaton )
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( const sample_rate_t _sample_rate,
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const ch_cnt_t _channels,
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bool & _success_ful,
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const QString & _file,
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const bool _use_vbr,
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const bitrate_t _nom_bitrate,
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const bitrate_t _min_bitrate,
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const bitrate_t _max_bitrate,
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mixer * _mixer );
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#endif
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