ardour
peak.h
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1 /*
2  Copyright (C) 2000-2007 Paul Davis
3 
4  This program is free software; you can redistribute it and/or modify
5  it under the terms of the GNU General Public License as published by
6  the Free Software Foundation; either version 2 of the License, or
7  (at your option) any later version.
8 
9  This program is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  GNU General Public License for more details.
13 
14  You should have received a copy of the GNU General Public License
15  along with this program; if not, write to the Free Software
16  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 
18 */
19 
20 #ifndef __ardour_peak_h__
21 #define __ardour_peak_h__
22 
23 #include <cmath>
25 #include "ardour/types.h"
26 #include "ardour/utils.h"
27 
28 static inline float
29 default_compute_peak (const ARDOUR::Sample * const buf, ARDOUR::pframes_t nsamples, float current)
30 {
31  for (ARDOUR::pframes_t i = 0; i < nsamples; ++i) {
32  current = f_max (current, fabsf (buf[i]));
33  }
34  return current;
35 }
36 
37 #endif /* __ardour_peak_h__ */
uint32_t pframes_t
Definition: types.h:61
float Sample
Definition: types.h:54
static float default_compute_peak(const ARDOUR::Sample *const buf, ARDOUR::pframes_t nsamples, float current)
Definition: peak.h:29
static float f_max(float x, float a)
Definition: utils.h:51