include/AudioFileWave.h

   1 /*
   2  * AudioFileWave.h - AudioBackend which encodes wave-stream and writes it
   3  *                   into a WAVE-file. This is used for song-export.
   4  *
   5  * Copyright (c) 2004-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
   6  *
   7  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2 of the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public
  20  * License along with this program (see COPYING); if not, write to the
  21  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22  * Boston, MA 02110-1301 USA.
  23  *
  24  */
  25
  26 #ifndef _AUDIO_FILE_WAVE_H
  27 #define _AUDIO_FILE_WAVE_H
  28
  29 #include "lmmsconfig.h"
  30 #include "AudioFileDevice.h"
  31
  32 #include <sndfile.h>
  33
  34
  35 class AudioFileWave : public AudioFileDevice
  36 {
  37 public:
  38         AudioFileWave( const sample_rate_t _sample_rate,
  39                         const ch_cnt_t _channels,
  40                         bool & _success_ful,
  41                         const QString & _file,
  42                         const bool _use_vbr,
  43                         const bitrate_t _nom_bitrate,
  44                         const bitrate_t _min_bitrate,
  45                         const bitrate_t _max_bitrate,
  46                         const int _depth,
  47                         AudioOutputContext * context );
  48         virtual ~AudioFileWave();
  49
  50         static AudioFileDevice * getInst( const sample_rate_t _sample_rate,
  51                                                 const ch_cnt_t _channels,
  52                                                 bool & _success_ful,
  53                                                 const QString & _file,
  54                                                 const bool _use_vbr,
  55                                                 const bitrate_t _nom_bitrate,
  56                                                 const bitrate_t _min_bitrate,
  57                                                 const bitrate_t _max_bitrate,
  58                                                 const int _depth,
  59                                                 AudioOutputContext * context )
  60         {
  61                 return new AudioFileWave( _sample_rate, _channels,
  62                                                 _success_ful, _file, _use_vbr,
  63                                                 _nom_bitrate, _min_bitrate,
  64                                                         _max_bitrate, _depth, context );
  65         }
  66
  67
  68 private:
  69         virtual void writeBuffer( const surroundSampleFrame * _ab,
  70                                                 const fpp_t _frames,
  71                                                 float _master_gain );
  72
  73         bool startEncoding();
  74         void finishEncoding();
  75
  76
  77         SF_INFO m_si;
  78         SNDFILE * m_sf;
  79
  80 } ;
  81
  82
  83 #endif