andrew@0: /*
andrew@0: 	 Copyright (C) 2003 Paul Brossier
andrew@0: 
andrew@0: 	 This program is free software; you can redistribute it and/or modify
andrew@0: 	 it under the terms of the GNU General Public License as published by
andrew@0: 	 the Free Software Foundation; either version 2 of the License, or
andrew@0: 	 (at your option) any later version.
andrew@0: 
andrew@0: 	 This program is distributed in the hope that it will be useful,
andrew@0: 	 but WITHOUT ANY WARRANTY; without even the implied warranty of
andrew@0: 	 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
andrew@0: 	 GNU General Public License for more details.
andrew@0: 
andrew@0: 	 You should have received a copy of the GNU General Public License
andrew@0: 	 along with this program; if not, write to the Free Software
andrew@0: 	 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
andrew@0: 	 
andrew@0: */
andrew@0: 
andrew@0: #ifndef _RESAMPLE_H
andrew@0: #define _RESAMPLE_H
andrew@0: 
andrew@0: /** \file
andrew@0:  
andrew@0:  Resampling object
andrew@0: 
andrew@0:  This object resamples an input vector into an output vector using
andrew@0:  libsamplerate. See http://www.mega-nerd.com/SRC/
andrew@0:  
andrew@0: */
andrew@0: 
andrew@0: #ifdef __cplusplus
andrew@0: extern "C" {
andrew@0: #endif
andrew@0: 
andrew@0: /** resampler object */
andrew@0: typedef struct _aubio_resampler_t aubio_resampler_t;
andrew@0: /** create resampler object 
andrew@0: 
andrew@0:   \param ratio output_sample_rate / input_sample_rate 
andrew@0:   \param type libsamplerate resampling type
andrew@0: 
andrew@0: */
andrew@0: aubio_resampler_t * new_aubio_resampler(float ratio, ba_uint_t type);
andrew@0: /** delete resampler object */
andrew@0: void del_aubio_resampler(aubio_resampler_t *s);
andrew@0: /** resample input in output
andrew@0: 
andrew@0:   \param s resampler object
andrew@0:   \param input input buffer of size N
andrew@0:   \param output output buffer of size N*ratio
andrew@0: 
andrew@0: */
andrew@0: ba_uint_t aubio_resampler_process(aubio_resampler_t *s, fvec_t * input,  fvec_t * output);
andrew@0: 
andrew@0: #ifdef __cplusplus
andrew@0: }
andrew@0: #endif
andrew@0: 
andrew@0: #endif /* _RESAMPLE_H */