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vlc_aout_volume.h
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1 /*****************************************************************************
2  * vlc_aout_volume.h: audio volume module
3  *****************************************************************************
4  * Copyright (C) 2002-2009 VLC authors and VideoLAN
5  * $Id: 051413ba105d5f7ee552679bf7fcd3a053db112c $
6  *
7  * Authors: Christophe Massiot <massiot@via.ecp.fr>
8  * Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
9  *
10  * This program is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU Lesser General Public License as published by
12  * the Free Software Foundation; either version 2.1 of the License, or
13  * (at your option) any later version.
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public License
21  * along with this program; if not, write to the Free Software Foundation,
22  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23  *****************************************************************************/
24 
25 #ifndef VLC_AOUT_MIXER_H
26 #define VLC_AOUT_MIXER_H 1
27 
28 /**
29  * \file
30  * This file defines functions, structures and macros for audio output mixer object
31  */
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 typedef struct audio_volume audio_volume_t;
38 
39 /**
40  * Audio volume
41  */
42 struct audio_volume
43 {
45 
46  vlc_fourcc_t format; /**< Audio samples format */
47  void (*amplify)(audio_volume_t *, block_t *, float); /**< Amplifier */
48 };
49 
50 #ifdef __cplusplus
51 }
52 #endif
53 
54 #endif