source: roaraudio/include/libroardsp/channels.h @ 3329:d939b3aedbc5

Last change on this file since 3329:d939b3aedbc5 was 3329:d939b3aedbc5, checked in by phi, 14 years ago

added function to calc a channel map

File size: 2.7 KB
Line 
1//channels.h:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010
5 *
6 *  This file is part of libroar a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  libroar is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 *  NOTE for everyone want's to change something and send patches:
24 *  read README and HACKING! There a addition information on
25 *  the license of this document you need to read before you send
26 *  any patches.
27 *
28 *  NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
29 *  or libpulse*:
30 *  The libs libroaresd, libroararts and libroarpulse link this lib
31 *  and are therefore GPL. Because of this it may be illigal to use
32 *  them with any software that uses libesd, libartsc or libpulse*.
33 */
34
35#ifndef _LIBROARDSP_CHANNELS_H_
36#define _LIBROARDSP_CHANNELS_H_
37
38#include "libroardsp.h"
39
40#define ROARDSP_CHAN_EOL                 -1
41#define ROARDSP_CHAN_NONE                 0
42#define ROARDSP_CHAN_FRONT_LEFT           1
43#define ROARDSP_CHAN_FRONT_RIGHT          2
44#define ROARDSP_CHAN_SIDE_LEFT            3
45#define ROARDSP_CHAN_SIDE_RIGHT           4
46#define ROARDSP_CHAN_BACK_LEFT            5
47#define ROARDSP_CHAN_BACK_RIGHT           6
48#define ROARDSP_CHAN_FRONT_CENTER         7
49#define ROARDSP_CHAN_SIDE_CENTER          8
50#define ROARDSP_CHAN_BACK_CENTER          9
51
52#define ROARDSP_CHAN_LEFT                 ROARDSP_CHAN_FRONT_LEFT
53#define ROARDSP_CHAN_RIGHT                ROARDSP_CHAN_FRONT_RIGHT
54#define ROARDSP_CHAN_CENTER               ROARDSP_CHAN_FRONT_CENTER
55#define ROARDSP_CHAN_MONO                 ROARDSP_CHAN_CENTER
56
57#define ROARDSP_CHAN_MS_MID               10
58#define ROARDSP_CHAN_MS_SIDE              11
59
60#define ROARDSP_CHAN_LFE                  12
61
62#define ROARDSP_CHANMAP_IN                0
63#define ROARDSP_CHANMAP_OUT               1
64#define ROARDSP_CHANMAP_MAP               2
65
66struct roardsp_chanmap {
67 char in [ROAR_MAX_CHANNELS];
68 char out[ROAR_MAX_CHANNELS];
69 char map[ROAR_MAX_CHANNELS];
70};
71
72char * roardsp_chan2str (int chan);
73int    roardsp_str2chan(char * str);
74
75int roardsp_chanmap_calc(struct roardsp_chanmap * map, int what, int err_on_none);
76
77#endif
78
79//ll
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