GLMediaPlayer/AudioSink: Add set[Audio]Volume(float v)/get[Audio]Volume() allowing to change the audio volume.

5 files changed, 122 insertions, 4 deletions

diff --git a/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java b/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
index 63d9c8d22..3ff156ae3 100644
--- a/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
+++ b/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
@@ -98,6 +98,22 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
 
     @Override
     protected final boolean setPlaySpeedImpl(float rate) {
+        // FIXME
+        return false;
+    }
+
+    @Override
+    protected final boolean setAudioVolumeImpl(float v) {
+        if(null != mp) {        
+            try {
+                mp.setVolume(v, v);
+                return true;
+            } catch (IllegalStateException ise) {
+                if(DEBUG) {
+                    ise.printStackTrace();
+                }
+            }
+        }
         return false;
     }
 
diff --git a/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java b/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
index f9ca0c028..d3964a2cf 100644
--- a/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
+++ b/src/jogl/classes/jogamp/opengl/openal/av/ALAudioSink.java
@@ -58,7 +58,8 @@ public class ALAudioSink implements AudioSink {
 
     /** Playback speed, range [0.5 - 2.0], default 1.0. */
     private float playSpeed;
-    
+    private float volume = 1.0f;
+        
     static class ALAudioFrame extends AudioFrame {
         private final int alBuffer;
         
@@ -686,6 +687,34 @@ public class ALAudioSink implements AudioSink {
     }
     
     @Override
+    public final float getVolume() {
+        return volume;        
+    }
+    
+    @Override
+    public final boolean setVolume(float v) {
+        if( !initialized || null == chosenFormat ) {
+            return false;
+        }
+        lockContext();
+        try {
+            if( Math.abs(v) < 0.01f ) {
+                v = 0.0f;
+            } else if( Math.abs(1.0f - v) < 0.01f ) {
+                v = 1.0f;
+            }
+            if( 0.0f <= v && v <= 1.0f ) { // OpenAL limits 
+                volume = v;
+                al.alSourcef(alSource[0], AL.AL_GAIN, v);
+                return true;
+            } 
+        } finally {
+            unlockContext();
+        }
+        return false; 
+    }
+    
+    @Override
     public final void flush() {
         if( !initialized || null == chosenFormat ) {
             return;
diff --git a/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java b/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
index 238595d45..05cc997ca 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
@@ -88,6 +88,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     protected URI streamLoc = null;
     
     protected volatile float playSpeed = 1.0f;
+    protected float audioVolume = 1.0f;
     
     /** Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
     protected int vid = GLMediaPlayer.STREAM_ID_AUTO;
@@ -362,7 +363,6 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     @Override
     public final boolean setPlaySpeed(float rate) {
         synchronized( stateLock ) {
-            final State preState = state;
             final float preSpeed = playSpeed;
             boolean res = false;
             if(State.Uninitialized != state ) {
@@ -377,7 +377,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                     }
                 }
             }
-            if(DEBUG) { System.err.println("setPlaySpeed("+rate+"): "+preState+"/"+preSpeed+" -> "+state+"/"+playSpeed+", "+toString()); }
+            if(DEBUG) { System.err.println("setPlaySpeed("+rate+"): "+state+", "+preSpeed+" -> "+playSpeed+", "+toString()); }
             return res;
         }
     }
@@ -398,6 +398,51 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     }
 
     @Override
+    public final float getAudioVolume() {
+        getAudioVolumeImpl();
+        return audioVolume;
+    }
+    /** 
+     * Override if not using AudioSink, or AudioSink's {@link AudioSink#getVolume()} is not sufficient!
+     */
+    protected void getAudioVolumeImpl() {
+        if( null != audioSink ) {
+            audioVolume = audioSink.getVolume();
+        }
+    }
+    
+    @Override
+    public boolean setAudioVolume(float v) {
+        synchronized( stateLock ) {
+            final float preVolume = audioVolume;
+            boolean res = false;
+            if(State.Uninitialized != state ) {
+                if( Math.abs(v) < 0.01f ) {
+                    v = 0.0f;
+                } else if( Math.abs(1.0f - v) < 0.01f ) {
+                    v = 1.0f;
+                }
+                if( setAudioVolumeImpl(v) ) {
+                    audioVolume = v;
+                    res = true;
+                }
+            }
+            if(DEBUG) { System.err.println("setAudioVolume("+v+"): "+state+", "+preVolume+" -> "+audioVolume+", "+toString()); }
+            return res;
+        }
+    }
+    /** 
+     * Override if not using AudioSink, or AudioSink's {@link AudioSink#setVolume(float)} is not sufficient!
+     */
+    protected boolean setAudioVolumeImpl(float v) {
+        if( null != audioSink ) {
+            return audioSink.setVolume(v);
+        }
+        // still true, even if audioSink rejects command ..
+        return true;
+    }
+    
+    @Override
     public final void initStream(URI streamLoc, int vid, int aid, int reqTextureCount) throws IllegalStateException, IllegalArgumentException {
         synchronized( stateLock ) {
             if(State.Uninitialized != state) {
diff --git a/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java b/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java
index b46b64748..b1b9c1b6c 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/JavaSoundAudioSink.java
@@ -36,6 +36,7 @@ public class JavaSoundAudioSink implements AudioSink {
     private AudioDataFormat chosenFormat = null;
     
     private volatile boolean playRequested = false;
+    private float volume = 1.0f;
     
     static {
         boolean ok = false;
@@ -63,6 +64,19 @@ public class JavaSoundAudioSink implements AudioSink {
     }
     
     @Override
+    public final float getVolume() {
+        // FIXME
+        return volume;        
+    }
+    
+    @Override
+    public final boolean setVolume(float v) {
+        // FIXME
+        volume = v;
+        return true;
+    }
+    
+    @Override
     public AudioDataFormat getPreferredFormat() {
         return DefaultFormat;
     }
diff --git a/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java b/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java
index 067322819..83799b074 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/NullAudioSink.java
@@ -14,7 +14,8 @@ public class NullAudioSink implements AudioSink {
 
     private volatile float playSpeed = 1.0f;
     private volatile boolean playRequested = false;
-    
+    private float volume = 1.0f;
+        
     @Override
     public final float getPlaySpeed() { return playSpeed; }
     
@@ -28,6 +29,19 @@ public class NullAudioSink implements AudioSink {
     }
     
     @Override
+    public final float getVolume() {
+        // FIXME
+        return volume;        
+    }
+    
+    @Override
+    public final boolean setVolume(float v) {
+        // FIXME
+        volume = v;        
+        return true;
+    }
+    
+    @Override
     public AudioDataFormat getPreferredFormat() {
         return DefaultFormat;
     }