shithub: aubio

ref: 0fe9aab4da39efa4585fccb5e3d931389f7ee592
dir: /src/resample.h/

View raw version
/*
	 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
 * Libsamplerate resampling
 */

#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(float 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
 */
uint_t aubio_resampler_process(aubio_resampler_t *s, fvec_t * input,  fvec_t * output);

#ifdef __cplusplus
}
#endif

#endif /* _RESAMPLE_H */