mixer.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer 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  * MPlayer 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 along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef MPLAYER_MIXER_H
  20 #define MPLAYER_MIXER_H
  21
  22 #include "libaf/af.h"
  23 #include "libao2/audio_out.h"
  24
  25 extern char * mixer_device;
  26 extern char * mixer_channel;
  27 extern int soft_vol;
  28 extern float soft_vol_max;
  29
  30 typedef struct mixer_s {
  31     const ao_functions_t *audio_out;
  32     af_stream_t *afilter;
  33     int volstep;
  34     int muted;
  35     float last_l, last_r;
  36 } mixer_t;
  37
  38 void mixer_getvolume(mixer_t *mixer, float *l, float *r);
  39 void mixer_setvolume(mixer_t *mixer, float l, float r);
  40 void mixer_incvolume(mixer_t *mixer);
  41 void mixer_decvolume(mixer_t *mixer);
  42 void mixer_getbothvolume(mixer_t *mixer, float *b);
  43 void mixer_mute(mixer_t *mixer);
  44 void mixer_getbalance(mixer_t *mixer, float *bal);
  45 void mixer_setbalance(mixer_t *mixer, float bal);
  46
  47 //void mixer_setbothvolume(int v);
  48 #define mixer_setbothvolume(m, v) mixer_setvolume(m, v, v)
  49
  50 #endif /* MPLAYER_MIXER_H */