ref: 8a1f9a4f0ab95572bf1eb8f8b7b6de0ba23d077a
dir: /src/beattracking.h/
/* Copyright (C) 2003 Matthew Davies and 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. */ /** \file Beat tracking using a context dependant model This file implement the causal beat tracking algorithm designed by Matthew Davies and described in the following articles: Matthew E. P. Davies and Mark D. Plumbley. Causal tempo tracking of audio. In Proceedings of the International Symposium on Music Information Retrieval (ISMIR), pages 164169, Barcelona, Spain, 2004. Matthew E. P. Davies, Paul Brossier, and Mark D. Plumbley. Beat tracking towards automatic musical accompaniment. In Proceedings of the Audio Engeeniring Society 118th Convention, Barcelona, Spain, May 2005. */ #ifndef BEATTRACKING_H #define BEATTRACKING_H #ifdef __cplusplus extern "C" { #endif /** beat tracking object */ typedef struct _aubio_beattracking_t aubio_beattracking_t; /** create beat tracking object \param winlen: frame size [512] \param channels number (not functionnal) [1] */ aubio_beattracking_t * new_aubio_beattracking(uint_t winlen, uint_t channels); /** track the beat \param bt beat tracking object \param dfframes current input detection function frame, smoothed by adaptive median threshold. \param out stored detected beat locations */ void aubio_beattracking_do(aubio_beattracking_t * bt, fvec_t * dfframes, fvec_t * out); /** delete beat tracking object \param p beat tracking object */ void del_aubio_beattracking(aubio_beattracking_t * p); #ifdef __cplusplus } #endif #endif /* BEATTRACKING_H */