peakdetector.h

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/*****************************************************************
 * gavl - a general purpose audio/video processing library
 *
 * Copyright (c) 2001 - 2012 Members of the Gmerlin project
 * gmerlin-general@lists.sourceforge.net
 * http://gmerlin.sourceforge.net
 *
 * 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, see <http://www.gnu.org/licenses/>.
 * *****************************************************************/
 
#ifndef GAVL_PEAKDETECTORS_H_INCLUDED
#define GAVL_PEAKDETECTORS_H_INCLUDED
 
#include <gavl/connectors.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct gavl_peak_detector_s gavl_peak_detector_t;
  
/* Create / destroy */
 
typedef void (*gavl_update_peak_callback)(void * priv,
                                          int samples,
                                          double min, double max, double abs);
 
typedef void (*gavl_update_peaks_callback)(void * priv,
                                           int samples,
                                           const double * min,
                                           const double * max,
                                           const double * abs);
 
GAVL_PUBLIC
gavl_peak_detector_t * gavl_peak_detector_create();
 
GAVL_PUBLIC
void gavl_peak_detector_set_callbacks(gavl_peak_detector_t * pd,
                                      gavl_update_peak_callback peak_callback,
                                      gavl_update_peaks_callback peaks_callback,
                                      void * priv);
 
  
GAVL_PUBLIC
void gavl_peak_detector_destroy(gavl_peak_detector_t *pd);
 
GAVL_PUBLIC
void gavl_peak_detector_set_format(gavl_peak_detector_t *pd,
                                   const gavl_audio_format_t * format);
 
GAVL_PUBLIC const gavl_audio_format_t *
gavl_peak_detector_get_format(gavl_peak_detector_t * pd);
 
  
GAVL_PUBLIC
void gavl_peak_detector_update(gavl_peak_detector_t *pd,
                               gavl_audio_frame_t * frame);
 
GAVL_PUBLIC
gavl_audio_sink_t * gavl_peak_detector_get_sink(gavl_peak_detector_t *pd);
  
GAVL_PUBLIC
void gavl_peak_detector_get_peak(gavl_peak_detector_t * pd,
                                 double * min, double * max,
                                 double * abs);
 
GAVL_PUBLIC
void gavl_peak_detector_get_peaks(gavl_peak_detector_t * pd,
                                  double * min, double * max,
                                  double * abs);
  
GAVL_PUBLIC
void gavl_peak_detector_reset(gavl_peak_detector_t * pd);
 
#ifdef __cplusplus
}
#endif
 
#endif // GAVL_PEAKDETECTORS_H_INCLUDED