[96fb8ad] | 1 | /* |
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[e6a78ea] | 2 | Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org> |
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| 3 | |
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| 4 | This file is part of aubio. |
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| 5 | |
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| 6 | aubio is free software: you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation, either version 3 of the License, or |
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| 9 | (at your option) any later version. |
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| 10 | |
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| 11 | aubio is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with aubio. If not, see <http://www.gnu.org/licenses/>. |
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| 18 | |
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[96fb8ad] | 19 | */ |
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| 20 | |
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| 21 | #ifndef _RESAMPLE_H |
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| 22 | #define _RESAMPLE_H |
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| 23 | |
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[ca29f57] | 24 | /** \file |
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| 25 | |
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| 26 | Resampling object |
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| 27 | |
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| 28 | This object resamples an input vector into an output vector using |
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| 29 | libsamplerate. See http://www.mega-nerd.com/SRC/ |
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| 30 | |
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| 31 | */ |
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[96fb8ad] | 32 | |
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[67d0a8b] | 33 | #if HAVE_SAMPLERATE |
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| 34 | |
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[96fb8ad] | 35 | #ifdef __cplusplus |
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| 36 | extern "C" { |
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| 37 | #endif |
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| 38 | |
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[ca29f57] | 39 | /** resampler object */ |
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[96fb8ad] | 40 | typedef struct _aubio_resampler_t aubio_resampler_t; |
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[06f2d78] | 41 | |
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[ca29f57] | 42 | /** create resampler object |
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| 43 | |
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| 44 | \param ratio output_sample_rate / input_sample_rate |
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| 45 | \param type libsamplerate resampling type |
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| 46 | |
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| 47 | */ |
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[bafe71d] | 48 | aubio_resampler_t *new_aubio_resampler (smpl_t ratio, uint_t type); |
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[06f2d78] | 49 | |
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[96fb8ad] | 50 | /** delete resampler object */ |
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[bafe71d] | 51 | void del_aubio_resampler (aubio_resampler_t * s); |
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[06f2d78] | 52 | |
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[ca29f57] | 53 | /** resample input in output |
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| 54 | |
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| 55 | \param s resampler object |
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| 56 | \param input input buffer of size N |
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| 57 | \param output output buffer of size N*ratio |
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| 58 | |
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| 59 | */ |
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[bafe71d] | 60 | void aubio_resampler_do (aubio_resampler_t * s, fvec_t * input, |
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| 61 | fvec_t * output); |
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[96fb8ad] | 62 | |
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| 63 | #ifdef __cplusplus |
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| 64 | } |
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| 65 | #endif |
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| 66 | |
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[67d0a8b] | 67 | #endif /* HAVE_SAMPLERATE */ |
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| 68 | |
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[96fb8ad] | 69 | #endif /* _RESAMPLE_H */ |
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