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git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@23 0778d3d1-df1d-0410-868b-ea421aaaa00d
91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/*
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* audio_file_wave.h - Audio-device which encodes wave-stream and writes it
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* into an WAVE-file. This is used for song-export.
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*
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* Linux MultiMedia Studio
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* Copyright (c) 2004-2005 Tobias Doerffel <tobydox/at/users.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _AUDIO_FILE_WAVE_H
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#define _AUDIO_FILE_WAVE_H
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#include "audio_file_device.h"
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class audioFileWave : public audioFileDevice
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{
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public:
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audioFileWave( Uint32 _sample_rate, Uint32 _channels,
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bool & _success_ful, const QString & _file,
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bool _use_vbr, Uint16 _nom_bitrate,
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Uint16 _min_bitrate, Uint16 _max_bitrate );
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virtual ~audioFileWave();
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static audioDevice * getInst( Uint32 _sample_rate, Uint32 _channels,
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bool & _success_ful,
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const QString & _file, bool _use_vbr,
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Uint16 _nom_bitrate,
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Uint16 _min_bitrate,
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Uint16 _max_bitrate )
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{
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return( new audioFileWave( _sample_rate, _channels,
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_success_ful, _file, _use_vbr,
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_nom_bitrate, _min_bitrate,
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_max_bitrate ) );
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}
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private:
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virtual void FASTCALL writeBufferToDev( surroundSampleFrame * _ab,
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Uint32 _frames,
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float _master_gain );
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bool startEncoding( void );
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void finishEncoding( void );
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int m_bytesWritten;
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struct waveFileHeader
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{
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char riff_id[4]; // "RIFF"
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Uint32 total_bytes; // total filesize-8
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char wave_fmt_str[8]; // "WAVEfmt"
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Uint32 bitrate_1; // bitrate, e.g. 16
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Uint16 uncompressed; // 1 if PCM
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Uint16 channels; // 1 = mono 2 = stereo
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Uint32 sample_rate; // sample-rate e.g. 44100
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Uint32 bytes_per_second; // sample-rate*channels*
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// (bitrate/8)
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Uint16 block_alignment; // channels*(bitrate/8)
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Uint16 bitrate_2; // bitrate, e.g. 16
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char data_chunk_id[4]; // "data"
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Uint32 data_bytes; // total size of sample-data
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} m_waveFileHeader;
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//outputSampleType * m_outputBuffer;
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} ;
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#endif
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