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: /** \file
andrew@0:  * peak picking utilities function
andrew@0:  * 
andrew@0:  * \todo check/fix peak picking
andrew@0:  */
andrew@0: 
andrew@0: #ifndef PEAKPICK_H
andrew@0: #define PEAKPICK_H
andrew@0: 
andrew@0: #ifdef __cplusplus
andrew@0: extern "C" {
andrew@0: #endif
andrew@0: 
andrew@0: /** function pointer to thresholding function */
andrew@0: typedef smpl_t (*aubio_thresholdfn_t)(fvec_t *input);
andrew@0: /** function pointer to peak-picking function */
andrew@0: typedef ba_uint_t (*aubio_pickerfn_t)(fvec_t *input, ba_uint_t pos);
andrew@0: /** peak-picker structure */
andrew@0: typedef struct _aubio_pickpeak_t aubio_pickpeak_t;
andrew@0: 
andrew@0: /** peak-picker creation function */
andrew@0: aubio_pickpeak_t * new_aubio_peakpicker(smpl_t threshold);
andrew@0: /** real time peak picking function */
andrew@0: ba_uint_t aubio_peakpick_pimrt(fvec_t * DF, aubio_pickpeak_t * p);
andrew@0: /** function added by Miguel Ramirez to return the onset detection amplitude in peakval */
andrew@0: ba_uint_t aubio_peakpick_pimrt_wt( fvec_t* DF, aubio_pickpeak_t* p, smpl_t* peakval );
andrew@0: /** get current peak value */
andrew@0: smpl_t aubio_peakpick_pimrt_getval(aubio_pickpeak_t * p);
andrew@0: /** destroy peak picker structure */
andrew@0: void del_aubio_peakpicker(aubio_pickpeak_t * p);
andrew@0: 
andrew@0: /** set peak picking threshold */
andrew@0: void aubio_peakpicker_set_threshold(aubio_pickpeak_t * p, smpl_t threshold);
andrew@0: /** get peak picking threshold */
andrew@0: smpl_t aubio_peakpicker_get_threshold(aubio_pickpeak_t * p);
andrew@0: /** set peak picker thresholding function */
andrew@0: void aubio_peakpicker_set_thresholdfn(aubio_pickpeak_t * p, aubio_thresholdfn_t thresholdfn);
andrew@0: /** get peak picker thresholding function */
andrew@0: aubio_thresholdfn_t aubio_peakpicker_get_thresholdfn(aubio_pickpeak_t * p);
andrew@0: 
andrew@0: #ifdef __cplusplus
andrew@0: }
andrew@0: #endif
andrew@0: 
andrew@0: #endif /* PEAKPICK_H */