view base/Resampler.h @ 1247:8f076d02569a piper

Make SVDEBUG always write to a log file -- formerly this was disabled in NDEBUG builds. I think there's little use to that, it just means that we keep adding more cerr debug output because we aren't getting the log we need. And SVDEBUG logging is not usually used in tight loops, I don't think the performance overhead is too serious.

Also update the About box.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

/*
   This is a modified version of a source file from the 
   Rubber Band audio timestretcher library.
   This file copyright 2007 Chris Cannam.
*/

#ifndef _RESAMPLER_H_
#define _RESAMPLER_H_

#include "BaseTypes.h"

#include <sys/types.h>

class Resampler
{
public:
    enum Quality { Best, FastestTolerable, Fastest };

    Resampler(Quality quality, int channels, sv_frame_t chunkSize = 0);
    ~Resampler();

    sv_frame_t resample(float **in, float **out,
                        sv_frame_t incount, double ratio,
                        bool final = false);

    sv_frame_t resampleInterleaved(float *in, float *out,
                                   sv_frame_t incount, double ratio,
                                   bool final = false);

    void reset();

protected:
    class D;
    D *m_d;
};

#endif