source: src/temporal/resampler.h @ 7778f39

/*
         Copyright (C) 2003 Paul Brossier

         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., 675 Mass Ave, Cambridge, MA 02139, USA.
         
*/

#ifndef _RESAMPLE_H
#define _RESAMPLE_H

/** \file
 
 Resampling object

 This object resamples an input vector into an output vector using
 libsamplerate. See http://www.mega-nerd.com/SRC/
 
*/

#if HAVE_SAMPLERATE

#ifdef __cplusplus
extern "C" {
#endif

/** resampler object */
typedef struct _aubio_resampler_t aubio_resampler_t;

/** create resampler object 

  \param ratio output_sample_rate / input_sample_rate 
  \param type libsamplerate resampling type

*/
aubio_resampler_t * new_aubio_resampler(smpl_t ratio, uint_t type);

/** delete resampler object */
void del_aubio_resampler(aubio_resampler_t *s);

/** resample input in output

  \param s resampler object
  \param input input buffer of size N
  \param output output buffer of size N*ratio

*/
void aubio_resampler_do (aubio_resampler_t *s, fvec_t * input,  fvec_t * output);

#ifdef __cplusplus
}
#endif

#endif /* HAVE_SAMPLERATE */

#endif /* _RESAMPLE_H */