/usr/include/zita-resampler/resampler.h is in libzita-resampler-dev 1.6.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org>
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
#ifndef __RESAMPLER_H
#define __RESAMPLER_H
#include <zita-resampler/resampler-table.h>
class Resampler
{
public:
Resampler (void);
~Resampler (void);
int setup (unsigned int fs_inp,
unsigned int fs_out,
unsigned int nchan,
unsigned int hlen);
int setup (unsigned int fs_inp,
unsigned int fs_out,
unsigned int nchan,
unsigned int hlen,
double frel);
void clear (void);
int reset (void);
int nchan (void) const { return _nchan; }
int filtlen (void) const { return inpsize (); } // Deprecated
int inpsize (void) const;
double inpdist (void) const;
int process (void);
unsigned int inp_count;
unsigned int out_count;
float *inp_data;
float *out_data;
void *inp_list;
void *out_list;
private:
Resampler_table *_table;
unsigned int _nchan;
unsigned int _inmax;
unsigned int _index;
unsigned int _nread;
unsigned int _nzero;
unsigned int _phase;
unsigned int _pstep;
float *_buff;
void *_dummy [8];
};
#endif
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