annotate base/Resampler.h @ 316:3a6725f285d6

* Make RemoteFile far more pervasive, and use it for local files as well
  so that we can handle both transparently.  Make it shallow copy with
  reference counting, so it can be used by value without having to worry
  about the cache file lifetime.  Use RemoteFile for MainWindow file-open
  functions, etc

/* -*- 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 <sys/types.h>

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

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

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

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

    void reset();

protected:
    class D;
    D *m_d;
};

#endif