include/vlc_aout_volume.h

   1 /*****************************************************************************
   2  * vlc_aout_volume.h: audio volume module
   3  *****************************************************************************
   4  * Copyright (C) 2002-2009 VLC authors and VideoLAN
   5  * $Id$
   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 {
  44     VLC_COMMON_MEMBERS
  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