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/* cdrdao - write audio CD-Rs in disc-at-once mode
*
* Copyright (C) 1998 Andreas Mueller <mueller@daneb.ping.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* $Log: AudioData.h,v $
* Revision 1.3 1998/09/22 19:17:19 mueller
* Added seeking to and reading of samples for GUI.
*
* Revision 1.2 1998/07/28 13:46:39 mueller
* Automatic length determination of audio files is now done in 'AudioData'.
*
*/
#ifndef __AUDIODATA_H__
#define __AUDIODATA_H__
#include <iostream.h>
#include "Sample.h"
class AudioData {
public:
enum Type { FILE, SILENCE };
AudioData(const char *filename, unsigned long start, unsigned long length);
AudioData(Type, unsigned long length);
AudioData(const AudioData &);
~AudioData();
Type type() const;
const char *filename() const;
unsigned long startPos() const;
unsigned long length() const;
void length(unsigned long l);
int check() const;
int openData() const;
void closeData() const;
long readData(Sample *buffer, long len) const;
int seekSample(unsigned long sample) const;
void print(ostream &) const;
private:
Type type_; // type of data
int open_; // 1: data can be retrieved with 'readData()', 'fd_' is valid if
// object type is 'FILE'
int fileType_; // 1: raw data, 2 WAVE file
char *filename_; // used for object type 'FILE'
int fd_; // used for object type 'FILE'
unsigned long startPos_; // starting sample within file,
// used for object type 'FILE'
int autoLength_; // 1 if length of audio file is automatically determined
int autoLengthFailed_; // set to 1 if audio file length could not be
// determined
unsigned long length_; // length of audio data (samples), used for all types
unsigned long readPos_; // actual read position (samples) (0 .. length_-1)
long headerLength_;
};
inline
AudioData::Type AudioData::type() const
{
return type_;
}
inline
const char *AudioData::filename() const
{
return filename_;
}
inline
unsigned long AudioData::startPos() const
{
return startPos_;
}
inline
void AudioData::length(unsigned long l)
{
length_ = l;
}
#endif
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