From 005b7e2844ddf1e855f5e423760319b7612a2605 Mon Sep 17 00:00:00 2001
From: gabucino <gabucino@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Sun, 15 Apr 2001 18:37:07 +0000
Subject: ups, I missed'em..

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@442 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 mixer.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 mixer.c

(limited to 'mixer.c')

diff --git a/mixer.c b/mixer.c
new file mode 100644
index 0000000000..7b3206e0e5
--- /dev/null
+++ b/mixer.c
@@ -0,0 +1,91 @@
+
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/soundcard.h>
+#include <fcntl.h>
+#include <stdio.h>
+
+#include "mixer.h"
+
+#define DEV_MIXER "/dev/mixer"
+
+char * mixer_device=NULL;
+char * devname=NULL;
+int    mixer_usemaster=0;
+
+void mixer_getvolume( int *l,int *r )
+{
+ int fd,v,cmd,devs;
+
+ if ( !mixer_device ) devname=strdup( DEV_MIXER );
+   else devname=strdup( mixer_device );
+ fd=open( devname,O_RDONLY );
+ free( devname );
+ if ( fd != -1 )
+  {
+   ioctl( fd,SOUND_MIXER_READ_DEVMASK,&devs );
+   if ( ( devs & SOUND_MASK_PCM ) && ( mixer_usemaster==0 ) ) cmd=SOUND_MIXER_READ_PCM;
+     else
+       if ( ( devs & SOUND_MASK_VOLUME ) && ( mixer_usemaster==1 ) ) cmd=SOUND_MIXER_READ_VOLUME;
+         else
+           {
+            close( fd );
+            return;
+           }
+   ioctl( fd,cmd,&v );
+   *r=( v & 0xFF00 ) >> 8;
+   *l=( v & 0x00FF );
+   close( fd );
+  }
+}
+
+void mixer_setvolume( int l,int r )
+{
+ int fd,v,cmd,devs;
+
+ if ( !mixer_device ) devname=strdup( DEV_MIXER );
+   else devname=strdup( mixer_device );
+ fd=open( devname,O_RDONLY );
+ free( devname );
+ if ( fd != -1 )
+  {
+   ioctl( fd,SOUND_MIXER_READ_DEVMASK,&devs );
+   if ( ( devs & SOUND_MASK_PCM ) && ( mixer_usemaster==0 ) ) cmd=SOUND_MIXER_WRITE_PCM;
+     else
+       if ( ( devs & SOUND_MASK_VOLUME ) && ( mixer_usemaster==1 ) ) cmd=SOUND_MIXER_WRITE_VOLUME;
+         else
+           {
+            close( fd );
+            return;
+           }
+   v=( r << 8 ) | l;
+   ioctl( fd,cmd,&v );
+   close( fd );
+  }
+}
+
+int mixer_l=0; int mixer_r=0;
+
+void mixer_incvolume( void )
+{
+ fprintf( stderr,"[mixer] inc.\n" );
+ mixer_getvolume( &mixer_l,&mixer_r );
+ if ( mixer_l < 100 ) mixer_l++;
+ if ( mixer_r < 100 ) mixer_r++;
+ mixer_setvolume( mixer_l,mixer_r );
+}
+
+void mixer_decvolume( void )
+{
+ fprintf( stderr,"[mixer] dec.\n" );
+ mixer_getvolume( &mixer_l,&mixer_r );
+ if ( mixer_l > 0 ) mixer_l--;
+ if ( mixer_r > 0 ) mixer_r--;
+ mixer_setvolume( mixer_l,mixer_r );
+}
+
+int mixer_getbothvolume( void )
+{
+ mixer_getvolume( &mixer_l,&mixer_r );
+ return ( mixer_l + mixer_r ) / 2;
+}
-- 
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