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1 /*
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2 Copyright (C) 2003 Paul Brossier
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3
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4 This program is free software; you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 2 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program; if not, write to the Free Software
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16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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17
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18 */
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19
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20 #ifndef _RESAMPLE_H
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21 #define _RESAMPLE_H
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22
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23 /** \file
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24
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25 Resampling object
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26
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27 This object resamples an input vector into an output vector using
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28 libsamplerate. See http://www.mega-nerd.com/SRC/
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29
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30 */
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31
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32 #ifdef __cplusplus
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33 extern "C" {
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34 #endif
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35
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36 /** resampler object */
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37 typedef struct _aubio_resampler_t aubio_resampler_t;
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38 /** create resampler object
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39
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40 \param ratio output_sample_rate / input_sample_rate
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41 \param type libsamplerate resampling type
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42
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43 */
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44 aubio_resampler_t * new_aubio_resampler(float ratio, ba_uint_t type);
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45 /** delete resampler object */
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46 void del_aubio_resampler(aubio_resampler_t *s);
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47 /** resample input in output
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48
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49 \param s resampler object
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50 \param input input buffer of size N
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51 \param output output buffer of size N*ratio
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52
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53 */
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54 ba_uint_t aubio_resampler_process(aubio_resampler_t *s, fvec_t * input, fvec_t * output);
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55
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56 #ifdef __cplusplus
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57 }
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58 #endif
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59
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60 #endif /* _RESAMPLE_H */
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