MPD
replay_gain_info.h
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1 /*
2  * Copyright (C) 2003-2010 The Music Player Daemon Project
3  * http://www.musicpd.org
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef MPD_REPLAY_GAIN_INFO_H
21 #define MPD_REPLAY_GAIN_INFO_H
22 
23 #include "check.h"
24 
25 #include <stdbool.h>
26 #include <math.h>
27 
33 };
34 
36  float gain;
37  float peak;
38 };
39 
42 };
43 
44 static inline void
46 {
47  tuple->gain = INFINITY;
48  tuple->peak = 0.0;
49 }
50 
51 static inline void
53 {
56 }
57 
58 static inline bool
60 {
61  return !isinf(tuple->gain);
62 }
63 
64 float
65 replay_gain_tuple_scale(const struct replay_gain_tuple *tuple, float preamp, float missing_preamp, bool peak_limit);
66 
71 void
73 
74 #endif