/usr/include/SndObj/PVTransp.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
//
// PVTransp.h: interface for the PVTransp class.
//
//////////////////////////////////////////////////////////////////////
#ifndef _PVTRANSP_H
#define _PVTRANSP_H
enum { NORMAL_TRANSP=0, KEEP_FORMANT};
#include "SpecMult.h"
class PVTransp : public SpecMult
{
protected:
float m_base;
float m_pitch;
float m_keepform;
public:
int Set(char* mess, float value);
int Connect(char* mess, void* input);
void SetPitch(float pitch, SndObj* inpitch=0);
void SetMode(int mode){ m_keepform= mode ? true : false;}
PVTransp();
PVTransp(SndObj* input, float pitch, int mode=NORMAL_TRANSP,
SndObj* inpitch=0,
int vecsize=DEF_FFTSIZE, float sr=DEF_SR);
~PVTransp();
short DoProcess();
};
#endif
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