JLayer_setGain.patch

--- src/javazoom/jl/player/Player.java  2008-11-16 17:34:07.000000000 +0100
+++ src/javazoom/jl/player/Player.java  2018-07-29 23:45:42.383258868 +0200
@@ -136,6 +136,20 @@
        }
        return ret;
    }
+
+       public boolean setGain(float newGain) {
+        if (audio instanceof JavaSoundAudioDevice) {
+            System.out.println("InstanceOf");
+            JavaSoundAudioDevice jsAudio = (JavaSoundAudioDevice) audio;
+            try {
+                jsAudio.write(null, 0, 0);
+            } catch (JavaLayerException ex) {
+                ex.printStackTrace();
+            }
+            return jsAudio.setLineGain(newGain);
+        }
+        return false;
+    }

    /**
     * Cloases this player. Any audio currently playing is stopped
--- src/javazoom/jl/player/JavaSoundAudioDevice.java    2008-11-16 17:34:07.000000000 +0100
+++ src/javazoom/jl/player/JavaSoundAudioDevice.java    2018-07-29 23:44:22.769057955 +0200
@@ -85,6 +85,19 @@
            setOpen(true);
        }
    }
+
+       public boolean setLineGain(float gain)
+   {
+       System.out.println("Vor Source");
+       if (source != null) {
+           System.out.println("Nach Source");
+           FloatControl volControl = (FloatControl) source.getControl(FloatControl.Type.MASTER_GAIN);
+           float newGain = Math.min(Math.max(gain, volControl.getMinimum()), volControl.getMaximum());
+           volControl.setValue(newGain);
+           return true;
+       }
+       return false;
+   }

    protected void openImpl()
        throws JavaLayerException