- add some control (ao_oss, pl_extrastereo)

- cosmetic


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6796 b3059339-0415-0410-9bf9-f77b7e298cf2

libao2/ao_oss.c

@@ -46,6 +46,9 @@ static int control(int cmd,int arg){
 	case AOCONTROL_SET_DEVICE:
 	    dsp=(char*)arg;
 	    return CONTROL_OK;
+	case AOCONTROL_GET_DEVICE:
+	    (char*)arg=dsp;
+	    return CONTROL_OK;
 	case AOCONTROL_QUERY_FORMAT:
 	    return CONTROL_TRUE;
 	case AOCONTROL_GET_VOLUME:

libao2/audio_out.h

@@ -1,3 +1,7 @@
+
+#ifndef __AUDIO_OUT_H
+#define __AUDIO_OUT_H
+
 typedef struct ao_info_s
 {
         /* driver name ("Matrox Millennium G200/G400" */
@@ -68,4 +72,4 @@ typedef struct ao_control_vol_s {
 	float right;
 } ao_control_vol_t;
 
-
+#endif

libao2/audio_plugin.h

@@ -83,6 +83,8 @@ extern ao_plugin_functions_t audio_plugin_eq;
 
 // Control parameters used by the plugins
 #define AOCONTROL_PLUGIN_SET_LEN 1  // All plugins must respond to this parameter
+#define AOCONTROL_PLUGIN_ES_SET  4  // set extra stereo coefficient
+#define AOCONTROL_PLUGIN_ES_GET  5  // get extra stereo coefficient
 
 #endif
 

libao2/pl_extrastereo.c

@@ -43,6 +43,12 @@ static int control(int cmd,int arg){
   switch(cmd){
   case AOCONTROL_PLUGIN_SET_LEN:
     return CONTROL_OK;
+  case AOCONTROL_PLUGIN_ES_SET:
+    pl_extrastereo.mul=*((float*)arg);
+    return CONTROL_OK;
+  case AOCONTROL_PLUGIN_ES_GET:
+    *((float*)arg)=pl_extrastereo.mul;
+    return CONTROL_OK;
   }
   return CONTROL_UNKNOWN;
 }