/usr/include/SndObj/SndIO.h is in libsndobj-dev 2.6.7+ds1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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////////////////////////////////////////////////////////////////////////
// This file is part of the SndObj library
//
// 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Copyright (c)Victor Lazzarini, 1997-2004
// See License.txt for a disclaimer of all warranties
// and licensing information
//************************************************************//
// SndIO.h: interface of the SndIO base class. //
// //
// //
// //
//************************************************************//
#ifndef _SNDIO_H
#define _SNDIO_H
#include <math.h>
#include "SndObj.h"
enum{FLOATSAM=0, BYTESAM, SHORTSAM_LE};
const int SHORTSAM_BE = -2;
const int S24LE = 3;
const int S24BE = -3;
const int LONGSAM = 4;
enum{SND_INPUT, SND_OUTPUT, SND_IO};
#ifdef WIN
const int SHORTSAM = SHORTSAM_LE;
#endif
#ifdef OSS
const int SHORTSAM = SHORTSAM_LE;
#endif
#ifdef ALSA
const int SHORTSAM = SHORTSAM_LE;
const int LONGSAM_LE = LONGSAM;
const int LONGSAM_BE = 5;
const int TWENTY_FOUR = 6;
const int TWENTYFOUR_LE = TWENTY_FOUR;
const int TWENTYFOUR_BE = 7;
#endif
#ifdef SGI
const int SHORTSAM = SHORTSAM_BE;
#endif
#if defined(MACOSX) && defined(WORDS_BIGENDIAN)
const int SHORTSAM = SHORTSAM_BE;
#endif
#if defined(MACOSX) && !defined(WORDS_BIGENDIAN)
const int SHORTSAM = SHORTSAM_LE;
#endif
struct _24Bit {
char s[3];
};
class SndIO {
protected:
SndObj** m_IOobjs;
float* m_output;
float m_sr;
short m_channels;
short m_bits;
int m_vecsize;
int m_vecsize_max;
int m_vecpos;
int m_error;
int m_samples;
short VerifySR(SndObj *InObj){
if(InObj->GetSr() != m_sr) return 0;
else return 1;
}
public:
short m_sampsize;
float GetSr(){ return m_sr; }
int GetVectorSize() { return m_vecsize; }
void SetVectorSize(int vecsize);
void LimitVectorSize(int limit) {
if(limit <= m_vecsize_max){
m_vecsize = limit;
m_samples = m_vecsize*m_channels;
}
}
void RestoreVectorSize(){ m_vecsize = m_vecsize_max; }
short GetChannels() { return m_channels; }
short GetSize() { return m_bits; }
float Output(int pos){ return m_output[pos]; }
float Output(int pos, int channel){
return m_output[(pos*m_channels)+(channel-1)];
}
short SetOutput(short channel, SndObj* input){
if(channel <= m_channels){
m_IOobjs[channel-1] = input;
return 1;
} else return 0;
}
SndIO(short channels=1, short bits=16,SndObj** inputlist=0,
int vecsize = DEF_VECSIZE, float sr = DEF_SR);
virtual ~SndIO();
virtual short Read();
virtual short Write();
virtual char* ErrorMessage();
int Error() { return m_error; }
};
#endif
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