GLMediaPlayer: Add multithreaded decoding w/ textureCount > 2 where available EGL/FFMPeg. WIP!

Off-thread decoding:
  If validated (impl) textureCount > 2, decoding happens on extra thread.
  If decoding requires GL context, a shared context is created for decoding thread.

API Changes:
- initGLStream(..): Adds 'textureCount' as argument.
- TextureSequence.TexSeqEventListener.newFrameAvailable(..) exposes the new frame available
- TextureSequence.TextureFrame exposes the PTS (video)

Implementation:

- 'int validateTextureCount(int)': implementation decides whether textureCount can be > 2, i.e. off-thread decoding allowed,
  default is NO w/ textureCount==2!

- 'boolean requiresOffthreadGLCtx()': implementation decides whether shared context is required for off-thread decoding

- 'syncFrame2Audio(TextureFrame frame)': implementation shall handle a/v sync, due to audio stream details (pts, buffered frames)

- FFMPEGMediaPlayer extends GLMediaPlayerImpl, no more EGLMediaPlayerImpl (redundant)

+++

- SyncedRingbuffer: Expose T[] array

+++

TODO:
 - syncAV!
 - test Android

8 files changed, 666 insertions, 466 deletions

diff --git a/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java b/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
index 8356a2bae..765cda084 100644
--- a/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
+++ b/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
@@ -28,12 +28,14 @@
 package jogamp.opengl.android.av;
 
 import java.io.IOException;
+import java.nio.Buffer;
 
 import javax.media.opengl.GL;
 import javax.media.opengl.GLES2;
 
 import com.jogamp.common.os.AndroidVersion;
 import com.jogamp.common.os.Platform;
+import com.jogamp.opengl.util.texture.Texture;
 import com.jogamp.opengl.util.texture.TextureSequence;
 
 import jogamp.common.os.android.StaticContext;
@@ -76,7 +78,6 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
     MediaPlayer mp;
     volatile boolean updateSurface = false;
     Object updateSurfaceLock = new Object();
-    TextureSequence.TextureFrame lastTexFrame = null;
 
     /**
     private static String toString(MediaPlayer m) {
@@ -90,17 +91,16 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
             throw new RuntimeException("AndroidGLMediaPlayerAPI14 not available");
         }
         this.setTextureTarget(GLES2.GL_TEXTURE_EXTERNAL_OES);
-        this.setTextureCount(1);
         mp = new MediaPlayer();
     }
 
     @Override
-    protected boolean setPlaySpeedImpl(float rate) {
+    protected final boolean setPlaySpeedImpl(float rate) {
         return false;
     }
 
     @Override
-    protected boolean startImpl() {
+    protected final boolean startImpl() {
         if(null != mp) {        
             try {
                 mp.start();
@@ -115,7 +115,7 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
     }
 
     @Override
-    protected boolean pauseImpl() {
+    protected final boolean pauseImpl() {
         if(null != mp) {
             wakeUp(false);
             try {
@@ -131,7 +131,7 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
     }
 
     @Override
-    protected boolean stopImpl() {
+    protected final boolean stopImpl() {
         if(null != mp) {
             wakeUp(false);
             try {
@@ -147,7 +147,7 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
     }
     
     @Override
-    protected int seekImpl(int msec) {
+    protected final int seekImpl(int msec) {
         if(null != mp) {
             mp.seekTo(msec);
             return mp.getCurrentPosition();
@@ -155,40 +155,6 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
         return 0;
     }
 
-    @Override
-    protected TextureSequence.TextureFrame getLastTextureImpl() {
-        return lastTexFrame;
-    }
-
-    @Override
-    protected TextureSequence.TextureFrame getNextTextureImpl(GL gl, boolean blocking) {
-        if(null != stex && null != mp) {
-            // Only block once, no while-loop. 
-            // This relaxes locking code of non crucial resources/events.
-            boolean update = updateSurface;
-            if(!update && blocking) {
-                synchronized(updateSurfaceLock) {
-                    if(!updateSurface) { // volatile OK.
-                        try {
-                            updateSurfaceLock.wait();
-                        } catch (InterruptedException e) {
-                            e.printStackTrace();
-                        }
-                    }
-                    updateSurface = false;
-                    update = true;
-                }
-            }
-            if(update) {
-                stex.updateTexImage();
-                // stex.getTransformMatrix(atex.getSTMatrix());
-                lastTexFrame=texFrames[0];
-            }
-            
-        }
-        return lastTexFrame;
-    }
-    
     private void wakeUp(boolean newFrame) {
         synchronized(updateSurfaceLock) {
             if(newFrame) {
@@ -199,12 +165,13 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
     }
     
     @Override
-    protected int getCurrentPositionImpl() {
-        return null != mp ? mp.getCurrentPosition() : 0;
-    }
+    protected final int getCurrentPositionImpl() { return null != mp ? mp.getCurrentPosition() : 0; }
+    
+    @Override
+    protected final int getAudioPTSImpl() { return getCurrentPositionImpl(); }    
 
     @Override
-    protected void destroyImpl(GL gl) {
+    protected final void destroyImpl(GL gl) {
         if(null != mp) {
             wakeUp(false);
             mp.release();
@@ -213,9 +180,25 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
     }
     
     SurfaceTexture stex = null;
+    public static class SurfaceTextureFrame extends TextureSequence.TextureFrame {        
+        public SurfaceTextureFrame(Texture t, SurfaceTexture stex) {
+            super(t);
+            this.surfaceTex = stex;
+            this.surface = new Surface(stex);
+        }
+        
+        public final SurfaceTexture getSurfaceTexture() { return surfaceTex; }
+        public final Surface getSurface() { return surface; }
+        
+        public String toString() {
+            return "SurfaceTextureFrame[" + pts + "ms: " + texture + ", " + surfaceTex + "]";
+        }
+        private final SurfaceTexture surfaceTex;
+        private final Surface surface; 
+    }
     
     @Override
-    protected void initGLStreamImpl(GL gl, int[] texNames) throws IOException {
+    protected final void initGLStreamImpl(GL gl) throws IOException {
         if(null!=mp && null!=urlConn) {
             try {
                 final Uri uri = Uri.parse(urlConn.getURL().toExternalForm());        
@@ -227,44 +210,86 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
             } catch (IllegalStateException e) {
                 throw new RuntimeException(e);
             }
-            stex = new SurfaceTexture(texNames[0]); // only 1 texture
-            stex.setOnFrameAvailableListener(onFrameAvailableListener);
+            if( null == stex ) {
+                throw new InternalError("XXX");
+            }
             final Surface surf = new Surface(stex);
             mp.setSurface(surf);
             surf.release();
+            mp.setSurface(null);
             try {
                 mp.prepare();
             } catch (IOException ioe) {
                 throw new IOException("MediaPlayer failed to process stream <"+urlConn.getURL().toExternalForm()+">: "+ioe.getMessage(), ioe);
             }
+            final String icodec = "android";
             updateAttributes(mp.getVideoWidth(), mp.getVideoHeight(), 
                              0, 0, 0, 
                              0f, 0, mp.getDuration(), 
-                             null, null);
+                             icodec, icodec);
+        }
+    }
+    
+    @Override
+    protected final boolean getNextTextureImpl(GL gl, TextureFrame nextFrame, boolean blocking) {
+        if(null != stex && null != mp) {
+            final SurfaceTextureFrame nextSFrame = (SurfaceTextureFrame) nextFrame;
+            final Surface nextSurface = nextSFrame.getSurface();
+            mp.setSurface(nextSurface);
+            nextSurface.release();
+            
+            // Only block once, no while-loop. 
+            // This relaxes locking code of non crucial resources/events.
+            boolean update = updateSurface;
+            if(!update && blocking) {
+                synchronized(updateSurfaceLock) {
+                    if(!updateSurface) { // volatile OK.
+                        try {
+                            updateSurfaceLock.wait();
+                        } catch (InterruptedException e) {
+                            e.printStackTrace();
+                        }
+                    }
+                    update = updateSurface;
+                    updateSurface = false;
+                }
+            }
+            if(update) {
+                final SurfaceTexture nextSTex = nextSFrame.getSurfaceTexture(); 
+                nextSTex.updateTexImage();
+                // nextFrame.setPTS( (int) ( nextSTex.getTimestamp() / 1000000L ) ); // nano -9 -> milli -3
+                nextFrame.setPTS( mp.getCurrentPosition() );
+                // stex.getTransformMatrix(atex.getSTMatrix());
+            }
         }
+        return true;
     }
+    @Override
+    protected final void syncFrame2Audio(TextureFrame frame) {}
     
     @Override
-    protected TextureSequence.TextureFrame createTexImage(GL gl, int idx, int[] tex) {
-        lastTexFrame = new TextureSequence.TextureFrame( createTexImageImpl(gl, idx, tex, width, height, true) );
-        return lastTexFrame; 
+    protected final TextureSequence.TextureFrame createTexImage(GL gl, int texName) {
+        if( null != stex ) {
+            throw new InternalError("XXX");
+        }
+        stex = new SurfaceTexture(texName); // only 1 texture
+        stex.setOnFrameAvailableListener(onFrameAvailableListener);
+        return new TextureSequence.TextureFrame( createTexImageImpl(gl, texName, width, height, true) );
     }
     
     @Override
-    protected void destroyTexImage(GL gl, TextureSequence.TextureFrame imgTex) {
+    protected final void destroyTexFrame(GL gl, TextureSequence.TextureFrame imgTex) {
         if(null != stex) {
             stex.release();
             stex = null;
         }
-        lastTexFrame = null;
-        super.destroyTexImage(gl, imgTex);
+        super.destroyTexFrame(gl, imgTex);
     }
     
     protected OnFrameAvailableListener onFrameAvailableListener = new OnFrameAvailableListener() {
         @Override
         public void onFrameAvailable(SurfaceTexture surfaceTexture) {
             wakeUp(true);
-            AndroidGLMediaPlayerAPI14.this.newFrameAvailable();
         }        
-    };        
+    };
 }
diff --git a/src/jogl/classes/jogamp/opengl/util/av/EGLMediaPlayerImpl.java b/src/jogl/classes/jogamp/opengl/util/av/EGLMediaPlayerImpl.java
index 274ccffd5..57d5ff625 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/EGLMediaPlayerImpl.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/EGLMediaPlayerImpl.java
@@ -77,19 +77,19 @@ public abstract class EGLMediaPlayerImpl extends GLMediaPlayerImpl {
     }
 
     
-    protected EGLMediaPlayerImpl() {
-        this(TextureType.GL, false);
-    }
-    
     protected EGLMediaPlayerImpl(TextureType texType, boolean useKHRSync) {
         super();
         this.texType = texType;
         this.useKHRSync = useKHRSync;
     }
+    @Override
+    protected final int validateTextureCount(int desiredTextureCount) {
+        return desiredTextureCount>1 ? desiredTextureCount : 2;
+    }
 
     @Override
-    protected TextureSequence.TextureFrame createTexImage(GL gl, int idx, int[] tex) {
-        final Texture texture = super.createTexImageImpl(gl, idx, tex, width, height, false);
+    protected TextureSequence.TextureFrame createTexImage(GL gl, int texName) {
+        final Texture texture = super.createTexImageImpl(gl, texName, width, height, false);
         final Buffer clientBuffer;
         final long image;
         final long sync;
@@ -117,7 +117,7 @@ public abstract class EGLMediaPlayerImpl extends GLMediaPlayerImpl {
                                                EGLExt.EGL_GL_TEXTURE_2D_KHR,
                                                clientBuffer, nioTmp);
             if (0==image) {
-                throw new RuntimeException("EGLImage creation failed: "+EGL.eglGetError()+", ctx "+eglCtx+", tex "+tex[idx]+", err "+toHexString(EGL.eglGetError()));
+                throw new RuntimeException("EGLImage creation failed: "+EGL.eglGetError()+", ctx "+eglCtx+", tex "+texName+", err "+toHexString(EGL.eglGetError()));
             }
         } else {
             clientBuffer = null;
@@ -141,7 +141,7 @@ public abstract class EGLMediaPlayerImpl extends GLMediaPlayerImpl {
     }
     
     @Override
-    protected void destroyTexImage(GL gl, TextureSequence.TextureFrame imgTex) {
+    protected void destroyTexFrame(GL gl, TextureSequence.TextureFrame frame) {
         final boolean eglUsage = TextureType.KHRImage == texType || useKHRSync ; 
         final EGLContext eglCtx;
         final EGLExt eglExt;
@@ -156,7 +156,7 @@ public abstract class EGLMediaPlayerImpl extends GLMediaPlayerImpl {
             eglExt = null;
             eglDrawable = null;
         }
-        final EGLTextureFrame eglTex = (EGLTextureFrame) imgTex;
+        final EGLTextureFrame eglTex = (EGLTextureFrame) frame;
         
         if(0!=eglTex.getImage()) {
             eglExt.eglDestroyImageKHR(eglDrawable.getNativeSurface().getDisplayHandle(), eglTex.getImage());
@@ -164,6 +164,6 @@ public abstract class EGLMediaPlayerImpl extends GLMediaPlayerImpl {
         if(0!=eglTex.getSync()) {
             eglExt.eglDestroySyncKHR(eglDrawable.getNativeSurface().getDisplayHandle(), eglTex.getSync());
         }
-        super.destroyTexImage(gl, imgTex);
+        super.destroyTexFrame(gl, frame);
     }
 }
diff --git a/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java b/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
index 2ff91a3f6..bc297dc21 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
@@ -30,13 +30,17 @@ package jogamp.opengl.util.av;
 import java.io.IOException;
 import java.net.URLConnection;
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.Iterator;
 
+import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.opengl.GL;
 import javax.media.opengl.GL2;
+import javax.media.opengl.GLContext;
+import javax.media.opengl.GLDrawable;
+import javax.media.opengl.GLDrawableFactory;
 import javax.media.opengl.GLES2;
 import javax.media.opengl.GLException;
+import javax.media.opengl.GLProfile;
 
 import com.jogamp.opengl.util.av.GLMediaPlayer;
 import com.jogamp.opengl.util.texture.Texture;
@@ -45,7 +49,7 @@ import com.jogamp.opengl.util.texture.TextureSequence;
 /**
  * After object creation an implementation may customize the behavior:
  * <ul>
- *   <li>{@link #setTextureCount(int)}</li>
+ *   <li>{@link #setDesTextureCount(int)}</li>
  *   <li>{@link #setTextureTarget(int)}</li>
  *   <li>{@link EGLMediaPlayerImpl#setEGLTexImageAttribs(boolean, boolean)}.</li>
  * </ul>
@@ -59,6 +63,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     protected static final String unknown = "unknown";
 
     protected State state;
+    
     protected int textureCount;
     protected int textureTarget;
     protected int textureFormat;
@@ -74,35 +79,38 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     
     protected volatile float playSpeed = 1.0f;
     
-    /** Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected int width = 0;
-    /** Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected int height = 0;
-    /** Video fps. Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Video fps. Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected float fps = 0;
-    /** Stream bps. Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Stream bps. Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected int bps_stream = 0;
-    /** Video bps. Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Video bps. Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected int bps_video = 0;
-    /** Audio bps. Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Audio bps. Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected int bps_audio = 0;
-    /** In frames. Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** In frames. Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected int totalFrames = 0;
-    /** In ms. Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** In ms. Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected int duration = 0;
-    /** Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected String acodec = unknown;
-    /** Shall be set by the {@link #initGLStreamImpl(GL, int[])} method implementation. */
+    /** Shall be set by the {@link #initGLStreamImpl(GL)} method implementation. */
     protected String vcodec = unknown;
     
     protected int frameNumber = 0;
+    protected int currentVideoPTS = 0;
     
-    protected TextureSequence.TextureFrame[] texFrames = null;
-    protected HashMap<Integer, TextureSequence.TextureFrame> texFrameMap = new HashMap<Integer, TextureSequence.TextureFrame>();
+    protected SyncedRingbuffer<TextureFrame> videoFramesFree =  null;
+    protected SyncedRingbuffer<TextureFrame> videoFramesDecoded =  null;
+    protected volatile TextureFrame lastFrame = null;
+
     private ArrayList<GLMediaEventListener> eventListeners = new ArrayList<GLMediaEventListener>();
 
     protected GLMediaPlayerImpl() {
-        this.textureCount=3;
+        this.textureCount=0;
         this.textureTarget=GL.GL_TEXTURE_2D;
         this.textureFormat = GL.GL_RGBA;
         this.textureInternalFormat = GL.GL_RGBA;
@@ -112,14 +120,14 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     }
 
     @Override
-    public void setTextureUnit(int u) { texUnit = u; }
+    public final void setTextureUnit(int u) { texUnit = u; }
     
     @Override
-    public int getTextureUnit() { return texUnit; }
+    public final int getTextureUnit() { return texUnit; }
+    
+    @Override
+    public final int getTextureTarget() { return textureTarget; }
     
-    protected final void setTextureCount(int textureCount) {
-        this.textureCount=textureCount;
-    }
     @Override
     public final int getTextureCount() { return textureCount; }
     
@@ -134,29 +142,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     public final int[] getTextureMinMagFilter() { return texMinMagFilter; }
     
     public final void setTextureWrapST(int[] wrapST) { texWrapST[0] = wrapST[0]; texWrapST[1] = wrapST[1];}
-    public final int[] getTextureWrapST() { return texWrapST; }
-
-    @Override
-    public final TextureSequence.TextureFrame getLastTexture() throws IllegalStateException {
-        if(State.Uninitialized == state) {
-            throw new IllegalStateException("Instance not initialized: "+this);
-        }
-        return getLastTextureImpl();
-    }
-    protected abstract TextureSequence.TextureFrame getLastTextureImpl();
-    
-    @Override
-    public final synchronized TextureSequence.TextureFrame getNextTexture(GL gl, boolean blocking) throws IllegalStateException {
-        if(State.Uninitialized == state) {
-            throw new IllegalStateException("Instance not initialized: "+this);
-        }
-        if(State.Playing == state) {
-            final TextureSequence.TextureFrame f = getNextTextureImpl(gl, blocking);
-            return f;
-        }
-        return getLastTextureImpl();        
-    }
-    protected abstract TextureSequence.TextureFrame getNextTextureImpl(GL gl, boolean blocking);
+    public final int[] getTextureWrapST() { return texWrapST; }    
     
     @Override
     public String getRequiredExtensionsShaderStub() throws IllegalStateException {
@@ -229,12 +215,15 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     protected abstract boolean setPlaySpeedImpl(float rate);
 
     public final State start() {
-        switch(state) {
+        switch( state ) {
             case Stopped:
+                /** fall-through intended */
             case Paused:
-                if(startImpl()) {
+                if( startImpl() ) {
+                    resumeFramePusher();
                     state = State.Playing;
                 }
+            default:
         }
         if(DEBUG) { System.err.println("Start: "+toString()); }
         return state;
@@ -242,7 +231,8 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     protected abstract boolean startImpl();
     
     public final State pause() {
-        if(State.Playing == state && pauseImpl()) {
+        if( State.Playing == state && pauseImpl() ) {
+            pauseFramePusher();
             state = State.Paused;
         }
         if(DEBUG) { System.err.println("Pause: "+toString()); }            
@@ -251,12 +241,15 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     protected abstract boolean pauseImpl();
     
     public final State stop() {
-        switch(state) {
+        switch( state ) {
             case Playing:
+                /** fall-through intended */
             case Paused:
-                if(stopImpl()) {
+                if( stopImpl() ) {
+                    pauseFramePusher();
                     state = State.Stopped;
                 }
+            default:
         }
         if(DEBUG) { System.err.println("Stop: "+toString()); }
         return state;
@@ -265,61 +258,70 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     
     @Override
     public final int getCurrentPosition() {
-        if(State.Uninitialized != state) {
+        if( State.Uninitialized != state ) {
             return getCurrentPositionImpl();
         }
         return 0;
     }
     protected abstract int getCurrentPositionImpl();
     
+    @Override
+    public final int getVideoPTS() { return currentVideoPTS; }
+    
+    @Override
+    public final int getAudioPTS() { 
+        if( State.Uninitialized != state ) {
+            return getAudioPTSImpl();
+        }
+        return 0;
+    }    
+    protected abstract int getAudioPTSImpl();
+    
     public final int seek(int msec) {
-        final int cp;
+        final int pts1;
         switch(state) {
             case Stopped:
             case Playing:
             case Paused:
-                cp = seekImpl(msec);
+                pauseFramePusher();
+                pts1 = seekImpl(msec);
+                currentVideoPTS=pts1;
+                resumeFramePusher();
                 break;
             default:
-                cp = 0;
+                pts1 = 0;
         }
         if(DEBUG) { System.err.println("Seek("+msec+"): "+toString()); }
-        return cp;        
+        return pts1;        
     }
     protected abstract int seekImpl(int msec);
     
     public final State getState() { return state; }
     
     @Override
-    public final State initGLStream(GL gl, URLConnection urlConn) throws IllegalStateException, GLException, IOException {
+    public final State initGLStream(GL gl, int reqTextureCount, URLConnection urlConn) throws IllegalStateException, GLException, IOException {
         if(State.Uninitialized != state) {
             throw new IllegalStateException("Instance not in state "+State.Uninitialized+", but "+state+", "+this);
         }
         this.urlConn = urlConn;
         if (this.urlConn != null) {
             try {                
-                if(null != gl) {
-                    if(null!=texFrames) {
-                        // re-init ..
-                        removeAllImageTextures(gl);
-                    } else {
-                        texFrames = new TextureSequence.TextureFrame[textureCount];
-                    }
-                    final int[] tex = new int[textureCount];
-                    {
-                        gl.glGenTextures(textureCount, tex, 0);
-                        final int err = gl.glGetError();
-                        if( GL.GL_NO_ERROR != err ) {
-                            throw new RuntimeException("TextureNames creation failed (num: "+textureCount+"): err "+toHexString(err));
-                        }
+                if( null != gl ) {
+                    removeAllTextureFrames(gl);
+                    textureCount = validateTextureCount(reqTextureCount);
+                    if( textureCount < 2 ) {
+                        throw new InternalError("Validated texture count < 2: "+textureCount);
                     }
-                    initGLStreamImpl(gl, tex);
-                    
-                    for(int i=0; i<textureCount; i++) {
-                        final TextureSequence.TextureFrame tf = createTexImage(gl, i, tex); 
-                        texFrames[i] = tf;
-                        texFrameMap.put(tex[i], tf);
+                    initGLStreamImpl(gl); // also initializes width, height, .. etc
+                    videoFramesFree = new SyncedRingbuffer<TextureFrame>(createTexFrames(gl, textureCount), true /* full */);
+                    if( 2 < textureCount ) {
+                        videoFramesDecoded = new SyncedRingbuffer<TextureFrame>(new TextureFrame[textureCount], false /* full */);
+                        framePusher = new FramePusher(gl, requiresOffthreadGLCtx());
+                        framePusher.doStart();
+                    } else {
+                        videoFramesDecoded = null;
                     }
+                    lastFrame = videoFramesFree.getBlocking(false /* clearRef */ );
                 }
                 state = State.Stopped;
                 return state;
@@ -329,35 +331,42 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
         }
         return state;        
     }
+    /** 
+     * Returns the validated number of textures to be handled.
+     * <p>
+     * Default is always 2 textures, last texture and the decoding texture. 
+     * </p>
+     */
+    protected int validateTextureCount(int desiredTextureCount) {
+        return 2;
+    }
+    protected boolean requiresOffthreadGLCtx() { return false; }
     
-    /**
-     * Implementation shall set the following set of data here 
-     * @param gl TODO
-     * @param texNames TODO
-     * @see #width
-     * @see #height
-     * @see #fps
-     * @see #bps_stream
-     * @see #totalFrames
-     * @see #acodec
-     * @see #vcodec
-    */
-    protected abstract void initGLStreamImpl(GL gl, int[] texNames) throws IOException;
-    
-    protected TextureSequence.TextureFrame createTexImage(GL gl, int idx, int[] tex) {
-        return new TextureSequence.TextureFrame( createTexImageImpl(gl, idx, tex, width, height, false) );
+    private final TextureFrame[] createTexFrames(GL gl, final int count) {
+        final int[] texNames = new int[count];
+        gl.glGenTextures(count, texNames, 0);
+        final int err = gl.glGetError();
+        if( GL.GL_NO_ERROR != err ) {
+            throw new RuntimeException("TextureNames creation failed (num: "+count+"): err "+toHexString(err));
+        }
+        final TextureFrame[] texFrames = new TextureFrame[count];
+        for(int i=0; i<count; i++) {
+            texFrames[i] = createTexImage(gl, texNames[i]);
+        }
+        return texFrames;
     }
+    protected abstract TextureFrame createTexImage(GL gl, int texName);
     
-    protected Texture createTexImageImpl(GL gl, int idx, int[] tex, int tWidth, int tHeight, boolean mustFlipVertically) {
-        if( 0 > tex[idx] ) {
-            throw new RuntimeException("TextureName "+toHexString(tex[idx])+" invalid.");
+    protected final Texture createTexImageImpl(GL gl, int texName, int tWidth, int tHeight, boolean mustFlipVertically) {
+        if( 0 > texName ) {
+            throw new RuntimeException("TextureName "+toHexString(texName)+" invalid.");
         }
         gl.glActiveTexture(GL.GL_TEXTURE0+getTextureUnit());
-        gl.glBindTexture(textureTarget, tex[idx]);
+        gl.glBindTexture(textureTarget, texName);
         {
             final int err = gl.glGetError();
             if( GL.GL_NO_ERROR != err ) {
-                throw new RuntimeException("Couldn't bind textureName "+toHexString(tex[idx])+" to 2D target, err "+toHexString(err));
+                throw new RuntimeException("Couldn't bind textureName "+toHexString(texName)+" to 2D target, err "+toHexString(err));
             }
         }
 
@@ -389,30 +398,297 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
         gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_S, texWrapST[0]);
         gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_T, texWrapST[1]);
         
-        return com.jogamp.opengl.util.texture.TextureIO.newTexture(tex[idx],
-                     textureTarget,
+        return com.jogamp.opengl.util.texture.TextureIO.newTexture(
+                     texName, textureTarget,
                      tWidth, tHeight,
                      width,  height,
                      mustFlipVertically);        
     }
+        
+    private final void removeAllTextureFrames(GL gl) {
+        if( null != videoFramesFree ) {
+            final TextureFrame[] texFrames = videoFramesFree.getArray(); 
+            videoFramesFree = null;
+            videoFramesDecoded = null;
+            lastFrame = null;
+            for(int i=0; i<texFrames.length; i++) {
+                final TextureFrame frame = texFrames[i];
+                if(null != frame) {
+                    destroyTexFrame(gl, frame);
+                    texFrames[i] = null;
+                }
+            }        
+        }
+        textureCount=0;
+    }
+    protected void destroyTexFrame(GL gl, TextureFrame frame) {
+        frame.getTexture().destroy(gl);        
+    }
+
+    /**
+     * Implementation shall set the following set of data here 
+     * @param gl TODO
+     * @see #width
+     * @see #height
+     * @see #fps
+     * @see #bps_stream
+     * @see #totalFrames
+     * @see #acodec
+     * @see #vcodec
+    */
+    protected abstract void initGLStreamImpl(GL gl) throws IOException;
     
-    protected void destroyTexImage(GL gl, TextureSequence.TextureFrame imgTex) {
-        imgTex.getTexture().destroy(gl);        
+    @Override
+    public final TextureFrame getLastTexture() throws IllegalStateException {
+        if(State.Uninitialized == state) {
+            throw new IllegalStateException("Instance not initialized: "+this);
+        }
+        return lastFrame;
     }
     
-    protected void removeAllImageTextures(GL gl) {
-        if(null != texFrames) {
-            for(int i=0; i<textureCount; i++) {
-                final TextureSequence.TextureFrame imgTex = texFrames[i];
-                if(null != imgTex) {
-                    destroyTexImage(gl, imgTex);
-                    texFrames[i] = null;
+    @Override
+    public final synchronized TextureFrame getNextTexture(GL gl, boolean blocking) throws IllegalStateException {
+        if(State.Uninitialized == state) {
+            throw new IllegalStateException("Instance not initialized: "+this);
+        }
+        if(State.Playing == state) {
+            TextureFrame nextFrame = null;
+            boolean ok = true;
+            try {
+                if( 2 < textureCount ) {
+                    nextFrame = videoFramesDecoded.getBlocking(false /* clearRef */ );
+                } else {
+                    nextFrame = videoFramesFree.getBlocking(false /* clearRef */ );
+                    if( getNextTextureImpl(gl, nextFrame, blocking) ) {
+                        newFrameAvailable(nextFrame);
+                    } else {
+                        ok = false;
+                    }
+                }
+                if( ok ) {
+                    currentVideoPTS = nextFrame.getPTS();
+                    if( blocking ) {
+                        syncFrame2Audio(nextFrame);
+                    }
+                    final TextureFrame _lastFrame = lastFrame;
+                    lastFrame = nextFrame;
+                    videoFramesFree.putBlocking(_lastFrame);
+                }
+            } catch (InterruptedException e) {
+                ok = false;
+                e.printStackTrace();
+            } finally {
+                if( !ok && null != nextFrame ) { // put back
+                    videoFramesFree.put(nextFrame);
                 }
             }
         }
-        texFrameMap.clear();
+        return lastFrame;
     }
+    protected abstract boolean getNextTextureImpl(GL gl, TextureFrame nextFrame, boolean blocking);
+    protected abstract void syncFrame2Audio(TextureFrame frame);
+    
+    private final void newFrameAvailable(TextureFrame frame) {
+        frameNumber++;        
+        synchronized(eventListenersLock) {
+            for(Iterator<GLMediaEventListener> i = eventListeners.iterator(); i.hasNext(); ) {
+                i.next().newFrameAvailable(this, frame, System.currentTimeMillis());
+            }
+        }
+    }
+    
+    class FramePusher extends Thread {
+        private volatile boolean isRunning = false;
+        private volatile boolean isActive = false;
+        
+        private volatile boolean shallPause = true;
+        private volatile boolean shallStop = false;
+        
+        private final GL gl;
+        private GLDrawable dummyDrawable = null;
+        private GLContext sharedGLCtx = null;
+        
+        FramePusher(GL gl, boolean createSharedCtx) {
+            setDaemon(true);
+            this.gl = createSharedCtx ? createSharedGL(gl) : gl;
+        }
+        
+        private GL createSharedGL(GL gl) {
+            final GLContext glCtx = gl.getContext();
+            final boolean glCtxCurrent = glCtx.isCurrent();
+            final GLProfile glp = gl.getGLProfile();
+            final GLDrawableFactory factory = GLDrawableFactory.getFactory(glp);
+            final AbstractGraphicsDevice device = glCtx.getGLDrawable().getNativeSurface().getGraphicsConfiguration().getScreen().getDevice();
+            dummyDrawable = factory.createDummyDrawable(device, true, glp); // own device!
+            dummyDrawable.setRealized(true);
+            sharedGLCtx = dummyDrawable.createContext(glCtx);
+            makeCurrent(sharedGLCtx);
+            if( glCtxCurrent ) {
+                makeCurrent(glCtx);
+            } else {
+                sharedGLCtx.release();
+            }
+            return sharedGLCtx.getGL();
+        }
+        private void makeCurrent(GLContext ctx) {
+            if( GLContext.CONTEXT_NOT_CURRENT >= ctx.makeCurrent() ) {
+                throw new GLException("Couldn't make ctx current: "+ctx);
+            }
+        }
+        
+        private void destroySharedGL() {
+            if( null != sharedGLCtx ) {
+                if( sharedGLCtx.isCreated() ) {
+                    // Catch dispose GLExceptions by GLEventListener, just 'print' them
+                    // so we can continue with the destruction.
+                    try {
+                        sharedGLCtx.destroy();
+                    } catch (GLException gle) {
+                        gle.printStackTrace();
+                    }
+                }
+                sharedGLCtx = null;            
+            }
+            if( null != dummyDrawable ) {
+                final AbstractGraphicsDevice device = dummyDrawable.getNativeSurface().getGraphicsConfiguration().getScreen().getDevice();
+                dummyDrawable.setRealized(false);
+                dummyDrawable = null;
+                device.close();
+            }            
+        }
+        
+        public synchronized void doPause() {
+            if( isActive ) {
+                shallPause = true;
+                while( isActive ) {
+                    try {
+                        this.wait(); // wait until paused
+                    } catch (InterruptedException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+        public synchronized void doResume() {
+            if( isRunning && !isActive ) {
+                shallPause = false;
+                while( !isActive ) {
+                    this.notify();  // wake-up pause-block
+                    try {
+                        this.wait(); // wait until resumed 
+                    } catch (InterruptedException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+        public synchronized void doStart() {
+            start();
+            while( !isRunning ) {
+                try {
+                    this.wait();  // wait until started
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+        public synchronized void doStop() {
+            if( isRunning ) {
+                shallStop = true;
+                while( isRunning ) {
+                    this.notify();  // wake-up pause-block (opt)
+                    try {
+                        this.wait();  // wait until stopped
+                    } catch (InterruptedException e) {
+                        e.printStackTrace();
+                    }
+                }
+            }
+        }
+        public boolean isRunning() { return isRunning; }
+        public boolean isActive() { return isActive; }
+        
+        public void run() {
+            setName(getName()+"-FramePusher_"+FramePusherInstanceId);
+            FramePusherInstanceId++;
+            
+            synchronized ( this ) {
+                if( null != sharedGLCtx ) {
+                    makeCurrent( sharedGLCtx );
+                }
+                isRunning = true;
+                this.notify();   // wake-up doStart()
+            }
+            
+            while( !shallStop ){
+                if( shallPause ) {
+                    synchronized ( this ) {
+                        while( shallPause && !shallStop ) {
+                            isActive = false;
+                            this.notify();   // wake-up doPause()
+                            try {
+                                this.wait(); // wait until resumed
+                            } catch (InterruptedException e) {
+                                e.printStackTrace();
+                            }
+                        }
+                        isActive = true;
+                        this.notify(); // wake-up doResume()
+                    }
+                }
+                
+                if( !shallStop ) {
+                    TextureFrame nextFrame = null;
+                    boolean ok = false;
+                    try {
+                        nextFrame = videoFramesFree.getBlocking(true /* clearRef */ );
+                        if( getNextTextureImpl(gl, nextFrame, true) ) {
+                            gl.glFinish();
+                            videoFramesDecoded.putBlocking(nextFrame);
+                            newFrameAvailable(nextFrame);
+                            ok = true;
+                        }
+                    } catch (InterruptedException e) {
+                        if( !shallStop && !shallPause ) {
+                            e.printStackTrace(); // oops
+                            shallPause = false;
+                            shallStop = true;
+                        }
+                    } finally {
+                        if( !ok && null != nextFrame ) { // put back
+                            videoFramesFree.put(nextFrame);
+                        }
+                    }
+                }
+            }
+            destroySharedGL();
+            synchronized ( this ) {
+                isRunning = false;
+                isActive = false;
+                this.notify(); // wake-up doStop()
+            }
+        }
+    }    
+    static int FramePusherInstanceId = 0;    
+    private FramePusher framePusher = null;
 
+    private final void pauseFramePusher() {
+        if( null != framePusher ) {
+            framePusher.doPause();
+        }
+    }
+    private final void resumeFramePusher() {
+        if( null != framePusher ) {
+            framePusher.doResume();
+        }
+    }
+    private final void destroyFramePusher() {
+        if( null != framePusher ) {
+            framePusher.doStop();
+            framePusher = null;
+        }
+    }
+    
     protected final void updateAttributes(int width, int height, int bps_stream, int bps_video, int bps_audio, 
                                           float fps, int totalFrames, int duration, 
                                           String vcodec, String acodec) {
@@ -458,19 +734,12 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
             }
         }
     }
-    protected final void newFrameAvailable() {
-        frameNumber++;        
-        synchronized(eventListenersLock) {
-            for(Iterator<GLMediaEventListener> i = eventListeners.iterator(); i.hasNext(); ) {
-                i.next().newFrameAvailable(this, System.currentTimeMillis());
-            }
-        }
-    }
     
     @Override
     public final synchronized State destroy(GL gl) {
+        destroyFramePusher();
         destroyImpl(gl);
-        removeAllImageTextures(gl);
+        removeAllTextureFrames(gl);
         state = State.Uninitialized;
         return state;
     }
diff --git a/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java b/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java
index cd48c3962..f1ce42257 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java
@@ -49,66 +49,68 @@ import com.jogamp.opengl.util.texture.TextureSequence;
  */
 public class NullGLMediaPlayer extends GLMediaPlayerImpl {
     private TextureData texData = null;
-    private TextureSequence.TextureFrame frame = null;
     private int pos_ms = 0;
     private int pos_start = 0;
     
     public NullGLMediaPlayer() {
         super();
-        this.setTextureCount(1);
     }
 
     @Override
-    protected boolean setPlaySpeedImpl(float rate) {
+    protected final boolean setPlaySpeedImpl(float rate) {
         return false;
     }
 
     @Override
-    protected boolean startImpl() {
+    protected final boolean startImpl() {
         pos_start = (int)System.currentTimeMillis();
         return true;
     }
 
     @Override
-    protected boolean pauseImpl() {
+    protected final boolean pauseImpl() {
         return true;
     }
 
     @Override
-    protected boolean stopImpl() {
+    protected final boolean stopImpl() {
         return true;
     }
     
     @Override
-    protected int seekImpl(int msec) {
+    protected final int seekImpl(int msec) {
         pos_ms = msec;
         validatePos();
         return pos_ms;
     }
     
     @Override
-    protected TextureSequence.TextureFrame getLastTextureImpl() {
-        return frame;
+    protected final boolean getNextTextureImpl(GL gl, TextureFrame nextFrame, boolean blocking) {
+        return true;
     }
-
     @Override
-    protected TextureSequence.TextureFrame getNextTextureImpl(GL gl, boolean blocking) {
-        return frame;
-    }
+    protected final void syncFrame2Audio(TextureFrame frame) { }
     
     @Override
-    protected int getCurrentPositionImpl() {
+    protected final int getCurrentPositionImpl() {
         pos_ms = (int)System.currentTimeMillis() - pos_start;
         validatePos();
         return pos_ms;
     }
+    @Override
+    protected final int getAudioPTSImpl() { return getCurrentPositionImpl(); }
+
 
     @Override
-    protected void destroyImpl(GL gl) {
+    protected final void destroyImpl(GL gl) {
+        if(null != texData) {
+            texData.destroy();
+            texData = null;
+        }                      
     }
-    
+        
     @Override
-    protected void initGLStreamImpl(GL gl, int[] texNames) throws IOException {
+    protected final void initGLStreamImpl(GL gl) throws IOException {
         try {
             URLConnection urlConn = IOUtil.getResource("jogl/util/data/av/test-ntsc01-160x90.png", this.getClass().getClassLoader());
             if(null != urlConn) {
@@ -117,44 +119,44 @@ public class NullGLMediaPlayer extends GLMediaPlayerImpl {
         } catch (Exception e) {
             e.printStackTrace();
         }
+        final int _w, _h;
         if(null != texData) {
-            width = texData.getWidth();
-            height = texData.getHeight();            
+            _w = texData.getWidth();
+            _h = texData.getHeight();            
         } else {
-            width = 640;
-            height = 480;
-            ByteBuffer buffer = Buffers.newDirectByteBuffer(width*height*4);
+            _w = 640;
+            _h = 480;
+            ByteBuffer buffer = Buffers.newDirectByteBuffer(_w*_h*4);
             while(buffer.hasRemaining()) {
                 buffer.put((byte) 0xEA); buffer.put((byte) 0xEA); buffer.put((byte) 0xEA); buffer.put((byte) 0xEA);
             }
             buffer.rewind();
             texData = new TextureData(GLProfile.getGL2ES2(),
-                   GL.GL_RGBA, width, height, 0,
+                   GL.GL_RGBA, _w, _h, 0,
                    GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, false, 
                    false, false, buffer, null);
         }
-        fps = 24f;
-        duration = 10*60*1000; // msec
-        totalFrames = (int) ( (duration/1000)*fps );
-        vcodec = "png-static";
+        final float _fps = 24f;
+        final int _duration = 10*60*1000; // msec
+        final int _totalFrames = (int) ( (_duration/1000)*_fps );
+        updateAttributes(_w, _h, 
+                         0, 0, 0, 
+                         _fps, _totalFrames, _duration, 
+                         "png-static", null);
     }
     
     @Override
-    protected TextureSequence.TextureFrame createTexImage(GL gl, int idx, int[] tex) {
-        Texture texture = super.createTexImageImpl(gl, idx, tex, width, height, false);
+    protected final TextureSequence.TextureFrame createTexImage(GL gl, int texName) {
+        final Texture texture = super.createTexImageImpl(gl, texName, width, height, false);
         if(null != texData) {
             texture.updateImage(gl, texData);
-            texData.destroy();
-            texData = null;
         }                      
-        frame = new TextureSequence.TextureFrame( texture );
-        return frame;
+        return new TextureSequence.TextureFrame( texture );
     }
     
     @Override
-    protected void destroyTexImage(GL gl, TextureSequence.TextureFrame imgTex) {
-        frame = null;
-        super.destroyTexImage(gl, imgTex);
+    protected final void destroyTexFrame(GL gl, TextureSequence.TextureFrame frame) {
+        super.destroyTexFrame(gl, frame);
     }
     
     private void validatePos() {
diff --git a/src/jogl/classes/jogamp/opengl/util/av/SyncedRingbuffer.java b/src/jogl/classes/jogamp/opengl/util/av/SyncedRingbuffer.java
index 5f5d69cf8..ea67387a0 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/SyncedRingbuffer.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/SyncedRingbuffer.java
@@ -74,6 +74,8 @@ public class SyncedRingbuffer<T> {
         }
     }
     
+    public final T[] getArray() { return array; }
+    
     public final int capacity() {
         return capacity;
     }
diff --git a/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGDynamicLibraryBundleInfo.java b/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGDynamicLibraryBundleInfo.java
index 852e5149c..3680da1a8 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGDynamicLibraryBundleInfo.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGDynamicLibraryBundleInfo.java
@@ -116,25 +116,32 @@ class FFMPEGDynamicLibraryBundleInfo implements DynamicLibraryBundleInfo  {
     
     private static long[] symbolAddr;
     private static final boolean ready;
+    private static final boolean libsLoaded;
     
     static {
         // native ffmpeg media player implementation is included in jogl_desktop and jogl_mobile     
         GLProfile.initSingleton();
         boolean _ready = false;
+        boolean[] _libsLoaded= { false };
         try {
-            _ready = initSymbols();
+            _ready = initSymbols(_libsLoaded);
         } catch (Throwable t) {
             t.printStackTrace();
         }
+        libsLoaded = _libsLoaded[0];
         ready = _ready;
-        if(!ready) {
-            System.err.println("FFMPEG: Not Available");
+        if(!libsLoaded) {
+            System.err.println("LIB_AV Not Available");
+        } else if(!ready) {
+            System.err.println("LIB_AV Not Matching");
         }
     }
     
+    static boolean libsLoaded() { return libsLoaded; }
     static boolean initSingleton() { return ready; }
     
-    private static final boolean initSymbols() {
+    private static final boolean initSymbols(boolean[] libsLoaded) {
+        libsLoaded[0] = false;
         final DynamicLibraryBundle dl = AccessController.doPrivileged(new PrivilegedAction<DynamicLibraryBundle>() {
                                           public DynamicLibraryBundle run() {
                                               return new DynamicLibraryBundle(new FFMPEGDynamicLibraryBundleInfo());
@@ -148,6 +155,7 @@ class FFMPEGDynamicLibraryBundleInfo implements DynamicLibraryBundleInfo  {
         if(!dl.isToolLibComplete()) {
             throw new RuntimeException("FFMPEG Tool libraries incomplete");
         }
+        libsLoaded[0] = true;
         if(symbolNames.length != symbolCount) {
             throw new InternalError("XXX0 "+symbolNames.length+" != "+symbolCount);
         }
diff --git a/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGMediaPlayer.java b/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGMediaPlayer.java
index b6708b379..83a5960f1 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGMediaPlayer.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGMediaPlayer.java
@@ -44,11 +44,10 @@ import com.jogamp.opengl.util.GLPixelStorageModes;
 import com.jogamp.opengl.util.av.AudioSink;
 import com.jogamp.opengl.util.av.AudioSinkFactory;
 import com.jogamp.opengl.util.texture.Texture;
-import com.jogamp.opengl.util.texture.TextureSequence;
+import com.jogamp.opengl.util.texture.TextureSequence.TextureFrame;
 
 import jogamp.opengl.GLContextImpl;
-import jogamp.opengl.util.av.EGLMediaPlayerImpl;
-import jogamp.opengl.util.av.SyncedRingbuffer;
+import jogamp.opengl.util.av.GLMediaPlayerImpl;
 
 /***
  * Implementation utilizes <a href="http://libav.org/">Libav</a>
@@ -102,7 +101,7 @@ import jogamp.opengl.util.av.SyncedRingbuffer;
  *       </pre></li>
  * </ul> 
  */
-public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
+public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
 
     // Count of zeroed buffers to return before switching to real sample provider
     private static final int TEMP_BUFFER_COUNT = 20;
@@ -114,21 +113,20 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
     static final boolean available;
     
     static {
-        if(FFMPEGDynamicLibraryBundleInfo.initSingleton()) {
+        final boolean libAVGood = FFMPEGDynamicLibraryBundleInfo.initSingleton();
+        if( FFMPEGDynamicLibraryBundleInfo.libsLoaded() ) {
             avUtilVersion = getAVVersion(getAvUtilVersion0());
             avFormatVersion = getAVVersion(getAvFormatVersion0());
             avCodecVersion = getAVVersion(getAvCodecVersion0());        
             System.err.println("LIB_AV Util  : "+avUtilVersion);
             System.err.println("LIB_AV Format: "+avFormatVersion);
             System.err.println("LIB_AV Codec : "+avCodecVersion);
-            initIDs0();            
-            available = true;
         } else {
             avUtilVersion = null;
             avFormatVersion = null;
             avCodecVersion = null;
-            available = false;
         }
+        available = libAVGood ? initIDs0() : false;            
     }
     
     public static final boolean isAvailable() { return available; }
@@ -144,8 +142,6 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
     //
     
     protected long moviePtr = 0;    
-    protected long procAddrGLTexSubImage2D = 0;
-    protected EGLMediaPlayerImpl.EGLTextureFrame lastTex = null;
     protected GLPixelStorageModes psm;
     protected PixelFormat vPixelFmt = null;
     protected int vPlanes = 0;
@@ -161,21 +157,15 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
     // Audio
     //
     
-    protected static final boolean USE_AUDIO_PUSHER = false;
     protected final int AudioFrameCount = 8;        
     protected final AudioSink audioSink;    
     protected final int maxAvailableAudio;
     protected AudioSink.AudioDataFormat chosenAudioFormat;
-    protected final SyncedRingbuffer<AudioSink.AudioFrame> audioFramesBuffer = 
-            USE_AUDIO_PUSHER ? new SyncedRingbuffer<AudioSink.AudioFrame>(new AudioSink.AudioFrame[AudioFrameCount], false /* full */)
-                             : null;
     
     public FFMPEGMediaPlayer() {
-        super(TextureType.GL, false);
         if(!available) {
             throw new RuntimeException("FFMPEGMediaPlayer not available");
         }
-        setTextureCount(1);
         moviePtr = createInstance0(DEBUG);
         if(0==moviePtr) {
             throw new GLException("Couldn't create FFMPEGInstance");
@@ -184,26 +174,15 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
         audioSink = AudioSinkFactory.createDefault(); 
         maxAvailableAudio = audioSink.getQueuedByteCount();
     }
-    
     @Override
-    protected TextureSequence.TextureFrame createTexImage(GL gl, int idx, int[] tex) {
-        if(TextureType.GL == texType) {
-            final Texture texture = super.createTexImageImpl(gl, idx, tex, texWidth, texHeight, true);
-            lastTex = new EGLTextureFrame(null, texture, 0, 0);
-        } else {
-            throw new InternalError("n/a");
-        }
-        return lastTex;
+    protected final int validateTextureCount(int desiredTextureCount) {
+        return desiredTextureCount>1 ? desiredTextureCount : 2;
     }
-    
     @Override
-    protected void destroyTexImage(GL gl, TextureSequence.TextureFrame imgTex) {
-        lastTex = null;
-        super.destroyTexImage(gl, imgTex);        
-    }
-    
+    protected final boolean requiresOffthreadGLCtx() { return true; }
+
     @Override
-    protected void destroyImpl(GL gl) {
+    protected final void destroyImpl(GL gl) {
         if (moviePtr != 0) {
             destroyInstance0(moviePtr);
             moviePtr = 0;
@@ -211,15 +190,29 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
     }
     
     @Override
-    protected void initGLStreamImpl(GL gl, int[] texNames) throws IOException {
+    protected final void initGLStreamImpl(GL gl) throws IOException {
         if(0==moviePtr) {
             throw new GLException("FFMPEG native instance null");
         }
+        {
+            final GLContextImpl ctx = (GLContextImpl)gl.getContext();
+            final ProcAddressTable pt = ctx.getGLProcAddressTable();
+            final long procAddrGLTexSubImage2D = getAddressFor(pt, "glTexSubImage2D");
+            if( 0 == procAddrGLTexSubImage2D ) {
+                throw new InternalError("glTexSubImage2D n/a in ProcAddressTable: "+pt.getClass().getName()+" of "+ctx.getGLVersion());
+            }
+            final long procAddrGLGetError = getAddressFor(pt, "glGetError");
+            if( 0 == procAddrGLGetError ) {
+                throw new InternalError("glGetError n/a in ProcAddressTable: "+pt.getClass().getName()+" of "+ctx.getGLVersion());
+            }
+            setGLFuncs0(moviePtr, procAddrGLTexSubImage2D, procAddrGLGetError);
+        }
+        
         final String urlS=urlConn.getURL().toExternalForm();
     
         chosenAudioFormat = audioSink.initSink(audioSink.getPreferredFormat(), AudioFrameCount);
         System.err.println("setURL: p1 "+this);
-        setStream0(moviePtr, urlS, -1, -1, AudioFrameCount);
+        setStream0(moviePtr, urlS, -1, -1, AudioFrameCount); // issues updateAttributes*(..)
         System.err.println("setURL: p2 "+this);
         
         int tf, tif=GL.GL_RGBA; // texture format and internal format
@@ -239,12 +232,10 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
         }        
         setTextureFormat(tif, tf);
         setTextureType(GL.GL_UNSIGNED_BYTE);
-        final GLContextImpl ctx = (GLContextImpl)gl.getContext();
-        final ProcAddressTable pt = ctx.getGLProcAddressTable();
-        procAddrGLTexSubImage2D = getAddressFor(pt, "glTexSubImage2D");
-        if( 0 == procAddrGLTexSubImage2D ) {
-            throw new InternalError("glTexSubImage2D n/a in ProcAddressTable: "+pt.getClass().getName()+" of "+ctx.getGLVersion());
-        }
+    }
+    @Override
+    protected final TextureFrame createTexImage(GL gl, int texName) {
+        return new TextureFrame( createTexImageImpl(gl, texName, texWidth, texHeight, true) );
     }
     
     /**
@@ -263,107 +254,6 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
         } ).longValue();
     }
 
-    private final void pushSound(ByteBuffer sampleData, int data_size, int audio_pts) {
-        if( USE_AUDIO_PUSHER ) {
-            if( audioPusher != null && audioPusher.isRunning() ) {
-                try {
-                    audioFramesBuffer.putBlocking(new AudioSink.AudioFrame(sampleData, data_size, audio_pts));
-                } catch (InterruptedException e) {
-                    e.printStackTrace(); // oops
-                }
-            }
-        } else {
-            pushAudioFrame(new AudioSink.AudioFrame(sampleData, data_size, audio_pts));
-        }
-    }
-
-    private final void pushAudioFrame(AudioSink.AudioFrame audioFrame) {
-        // poor mans audio sync ..
-        final long now = System.currentTimeMillis();
-        final long now_d = now - lastAudioTime;
-        final long pts_d = audioFrame.audioPTS - lastAudioPTS;
-        final long dt = (long) ( (float) ( pts_d - now_d ) / getPlaySpeed() ) ;
-        final boolean sleep = dt > audio_dt_d;
-        final long sleepP = dt - ( audio_dt_d / 2 );
-        if(DEBUG) {
-            final int qAT = audioSink.getQueuedTime();
-            System.err.println("s: pts-a "+audioFrame.audioPTS+", qAT "+qAT+", pts-d "+pts_d+", now_d "+now_d+", dt "+dt+", sleep "+sleep+", sleepP "+sleepP+" ms");
-        }
-        if( sleep ) {
-            try {
-                Thread.sleep( sleepP );
-            } catch (InterruptedException e) {
-                e.printStackTrace(); // oops
-            }
-            lastAudioTime = System.currentTimeMillis();
-        } else {
-            lastAudioTime = now;
-        }
-        if( audioSink.isDataAvailable(audioFrame.dataSize) ) {
-            audioSink.writeData(audioFrame);
-            lastAudioPTS=audioFrame.audioPTS;
-        }
-    }
-    
-    class AudioPusher extends Thread {
-        volatile boolean shallStop = false;
-        volatile boolean isBlocked = false;
-        
-        AudioPusher() {
-            setDaemon(true);
-        }
-        public void requestStop() {
-            shallStop = true;
-            if( isBlocked ) {
-                interrupt();
-            }
-        }
-        public boolean isRunning() { return !shallStop; }
-        
-        public void run() {
-            setName(getName()+"-AudioPusher_"+AudioPusherInstanceId);
-            AudioPusherInstanceId++;
-            
-            while( !shallStop ){
-                final AudioSink.AudioFrame audioFrame;
-                try {
-                    isBlocked = true;
-                    audioFrame = audioFramesBuffer.getBlocking(true /* clearRef */);
-                } catch (InterruptedException e) {
-                    if( !shallStop ) {
-                        e.printStackTrace(); // oops
-                    }
-                    shallStop = true;
-                    return;
-                }
-                isBlocked = false;
-                
-                if( null != audioFrame ) {
-                    FFMPEGMediaPlayer.this.pushAudioFrame(audioFrame);
-                }
-            }
-        }
-    }    
-    static int AudioPusherInstanceId = 0;    
-    private AudioPusher audioPusher = null;
-    
-    private final void stopAudioPusher() {
-        if( USE_AUDIO_PUSHER ) {
-            if( null != audioPusher ) {
-                audioPusher.requestStop();
-                audioPusher = null;
-            }
-            audioFramesBuffer.clear(true);
-        }
-    }
-    private final void startAudioPusher() {
-        if( USE_AUDIO_PUSHER ) {
-            stopAudioPusher();
-            audioPusher = new AudioPusher();
-            audioPusher.start();
-        }
-    }
-
     private void updateAttributes2(int pixFmt, int planes, int bitsPerPixel, int bytesPerPixelPerPlane,
                                    int lSz0, int lSz1, int lSz2,
                                    int tWd0, int tWd1, int tWd2) {
@@ -413,7 +303,7 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
      * Otherwise the call is delegated to it's super class.
      */
     @Override
-    public String getTextureLookupFunctionName(String desiredFuncName) throws IllegalStateException {
+    public final String getTextureLookupFunctionName(String desiredFuncName) throws IllegalStateException {
         if(State.Uninitialized == state) {
             throw new IllegalStateException("Instance not initialized: "+this);
         }
@@ -434,7 +324,7 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
      * e.g. YUV420P to RGB. Otherwise the call is delegated to it's super class.  
      */ 
     @Override
-    public String getTextureLookupFragmentShaderImpl() throws IllegalStateException {
+    public final String getTextureLookupFragmentShaderImpl() throws IllegalStateException {
       if(State.Uninitialized == state) {
           throw new IllegalStateException("Instance not initialized: "+this);
       }
@@ -465,134 +355,131 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
     }
     
     @Override
-    protected synchronized int getCurrentPositionImpl() {
+    protected final synchronized int getCurrentPositionImpl() {
         return 0!=moviePtr ? getVideoPTS0(moviePtr) : 0;
     }
 
     @Override
-    protected synchronized boolean setPlaySpeedImpl(float rate) {
+    public final int getAudioPTSImpl() { return 0; }    
+    
+    @Override
+    protected final synchronized boolean setPlaySpeedImpl(float rate) {
         return true;
     }
 
     @Override
-    public synchronized boolean startImpl() {
+    public final synchronized boolean startImpl() {
         if(0==moviePtr) {
             return false;
         }
-        startAudioPusher();
         return true;
     }
 
     /** @return time position after issuing the command */
     @Override
-    public synchronized boolean pauseImpl() {
+    public final synchronized boolean pauseImpl() {
         if(0==moviePtr) {
             return false;
         }
-        stopAudioPusher();
         return true;
     }
 
     /** @return time position after issuing the command */
     @Override
-    public synchronized boolean stopImpl() {
+    public final synchronized boolean stopImpl() {
         if(0==moviePtr) {
             return false;
         }
-        stopAudioPusher();
         return true;
     }
 
     /** @return time position after issuing the command */
     @Override
-    protected synchronized int seekImpl(int msec) {
+    protected final synchronized int seekImpl(int msec) {
         if(0==moviePtr) {
             throw new GLException("FFMPEG native instance null");
         }
-        stopAudioPusher();
         int pts0 = getVideoPTS0(moviePtr);
         int pts1 = seek0(moviePtr, msec);
         System.err.println("Seek: "+pts0+" -> "+msec+" : "+pts1);
-        lastAudioPTS=pts1;
-        lastVideoPTS=pts1;
-        startAudioPusher();
         return pts1;
     }
 
     @Override
-    protected TextureSequence.TextureFrame getLastTextureImpl() {
-        return lastTex;
+    protected final boolean getNextTextureImpl(GL gl, TextureFrame nextFrame, boolean blocking) {
+        if(0==moviePtr) {
+            throw new GLException("FFMPEG native instance null");
+        }                
+        psm.setUnpackAlignment(gl, 1); // RGBA ? 4 : 1
+        int avPTS = 0;
+        try {
+            final Texture tex = nextFrame.getTexture();
+            gl.glActiveTexture(GL.GL_TEXTURE0+getTextureUnit());
+            tex.enable(gl);
+            tex.bind(gl);
+
+            /** Try decode up to 10 packets to find one containing video, i.e. vPTS > 0 */
+            for(int retry=10; 0 >= avPTS && 0 < retry; retry--) {
+               avPTS = readNextPacket0(moviePtr, textureTarget, textureFormat, textureType);
+               retry--;
+            }
+        } finally {
+            psm.restore(gl);
+        }
+        if( 0 < avPTS ) {
+            vSTS = avPTS;
+            nextFrame.setPTS(avPTS);
+            return true;
+        } else {
+            return false;
+        }
     }
     
+    private final void pushSound(ByteBuffer sampleData, int data_size, int audio_pts) {
+        aSTS = audio_pts;
+        final AudioSink.AudioFrame frame = new AudioSink.AudioFrame(sampleData, data_size, audio_pts);
+        if( audioSink.isDataAvailable(frame.dataSize) ) {
+            audioSink.writeData(frame);
+        }
+    }
+    
+    /** last audio streaming TS */
+    private int aSTS = 0;
+    /** last video streaming TS */
+    private int vSTS = 0;
+    
     private long lastAudioTime = 0;
-    private int lastAudioPTS = 0;
     private static final int audio_dt_d = 400;
     private long lastVideoTime = 0;
-    private int lastVideoPTS = 0;
     private static final int video_dt_d = 9;
     
     @Override
-    protected TextureSequence.TextureFrame getNextTextureImpl(GL gl, boolean blocking) {
-        if(0==moviePtr) {
-            throw new GLException("FFMPEG native instance null");
-        }                
-        if(null != lastTex) {
-            psm.setUnpackAlignment(gl, 1); // RGBA ? 4 : 1
-            try {
-                final Texture tex = lastTex.getTexture();
-                gl.glActiveTexture(GL.GL_TEXTURE0+getTextureUnit());
-                tex.enable(gl);
-                tex.bind(gl);
-
-                if( USE_AUDIO_PUSHER ) {
-                    try {
-                        audioFramesBuffer.waitForFreeSlots(2);
-                    } catch (InterruptedException e) {
-                        e.printStackTrace(); // oops
-                    }
-                }
-
-                /* try decode 10 packets to find one containing video
-                   (res == 2) */
-                int res = 0;
-                int retry = 10; 
-                while(res!=2 && retry >= 0) { 
-                   res = readNextPacket0(moviePtr, procAddrGLTexSubImage2D, textureTarget, textureFormat, textureType);
-                   retry--;
-                }
-            } finally {
-                psm.restore(gl);
-            }
-            final int pts = getVideoPTS0(moviePtr); // this frame
-            if(blocking) {
-                // poor mans video sync .. TODO: off thread 'readNextPackage0(..)' on shared GLContext and multi textures/unit!
-                final long now = System.currentTimeMillis();
-                // Try sync video to audio
-                final long now_d = now - lastAudioTime;
-                final long pts_d = pts - lastAudioPTS - 444; /* hack 444 == play video 444ms ahead of audio */
-                final long dt = Math.min(47, (long) ( (float) ( pts_d - now_d ) / getPlaySpeed() ) ) ;
-                //final long dt = (long) ( (float) ( pts_d - now_d ) / getPlaySpeed() ) ;
-                final boolean sleep = dt>video_dt_d && dt<1000 && audioSink.getQueuedByteCount()<maxAvailableAudio-10000;
-                final long sleepP = dt-video_dt_d;
-                if(DEBUG) {
-                    final int qAT = audioSink.getQueuedTime();
-                    System.err.println("s: pts-v "+pts+", qAT "+qAT+", pts-d "+pts_d+", now_d "+now_d+", dt "+dt+", sleep "+sleep+", sleepP "+sleepP+" ms");
-                }
-                // ?? Maybe use audioSink.getQueuedTime();
-                if( sleep ) {
-                    try {
-                        Thread.sleep(sleepP);
-                    } catch (InterruptedException e) { }
-                    lastVideoTime = System.currentTimeMillis();
-                } else { 
-                    lastVideoTime = now;
-                }
-            }
-            lastVideoPTS = pts;
+    protected final void syncFrame2Audio(TextureFrame frame) {
+        /** 
+        // poor mans video sync .. TODO: off thread 'readNextPackage0(..)' on shared GLContext and multi textures/unit!
+        final long now = System.currentTimeMillis();
+        // Try sync video to audio
+        final long now_d = now - lastAudioTime;
+        final long pts_d = vSTS - aSTS - 444; // hack 444 == play video 444ms ahead of audio
+        final long dt = Math.min(47, (long) ( (float) ( pts_d - now_d ) / getPlaySpeed() ) ) ;
+        //final long dt = (long) ( (float) ( pts_d - now_d ) / getPlaySpeed() ) ;
+        final boolean sleep = dt>video_dt_d && dt<1000 && audioSink.getQueuedByteCount()<maxAvailableAudio-10000;
+        final long sleepP = dt-video_dt_d;
+        if(DEBUG) {
+            final int qAT = audioSink.getQueuedTime();
+            System.err.println("s: pts-v "+vSTS+", qAT "+qAT+", pts-d "+pts_d+", now_d "+now_d+", dt "+dt+", sleep "+sleep+", sleepP "+sleepP+" ms");
         }
-        return lastTex;
+        // ?? Maybe use audioSink.getQueuedTime();
+        if( sleep ) {
+            try {
+                Thread.sleep(sleepP);
+            } catch (InterruptedException e) { }
+            lastVideoTime = System.currentTimeMillis();
+        } else { 
+            lastVideoTime = now;
+        }   
+        */
     }
-    
     private static native int getAvUtilVersion0();
     private static native int getAvFormatVersion0();
     private static native int getAvCodecVersion0();
@@ -600,14 +487,22 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
     private native long createInstance0(boolean verbose);    
     private native void destroyInstance0(long moviePtr);
     
+    /**
+     * Issues {@link #updateAttributes(int, int, int, int, int, float, int, int, String, String)}
+     * and {@link #updateAttributes2(int, int, int, int, int, int, int, int, int, int)}.
+     */
     private native void setStream0(long moviePtr, String url, int vid, int aid, int audioFrameCount);
+    private native void setGLFuncs0(long moviePtr, long procAddrGLTexSubImage2D, long procAddrGLGetError);
 
     private native int getVideoPTS0(long moviePtr);    
     
     private native int getAudioPTS0(long moviePtr);
     private native Buffer getAudioBuffer0(long moviePtr, int plane);
     
-    private native int readNextPacket0(long moviePtr, long procAddrGLTexSubImage2D, int texTarget, int texFmt, int texType);
+    /**
+     * @return resulting current PTS: audio < 0, video > 0, invalid == 0
+     */
+    private native int readNextPacket0(long moviePtr, int texTarget, int texFmt, int texType);
     
     private native int seek0(long moviePtr, int position);
 
@@ -720,6 +615,5 @@ public class FFMPEGMediaPlayer extends EGLMediaPlayerImpl {
             return null;            
         }
     }
-
 }
 
diff --git a/src/jogl/classes/jogamp/opengl/util/av/impl/OMXGLMediaPlayer.java b/src/jogl/classes/jogamp/opengl/util/av/impl/OMXGLMediaPlayer.java
index aef98fcde..a21bb40a8 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/impl/OMXGLMediaPlayer.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/impl/OMXGLMediaPlayer.java
@@ -33,7 +33,6 @@ import java.net.URL;
 
 import javax.media.opengl.GL;
 import javax.media.opengl.GLException;
-import javax.media.opengl.GLProfile;
 
 import com.jogamp.opengl.util.texture.TextureSequence;
 
@@ -49,17 +48,17 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
     static final boolean available;
     
     static {
+        available = false;
+        /** FIXME!
         // OMX binding is included in jogl_desktop and jogl_mobile     
         GLProfile.initSingleton();
-        available = initIDs0();
+        available = initIDs0(); */
     }
     
     public static final boolean isAvailable() { return available; }
     
     protected long moviePtr = 0;
     
-    protected TextureSequence.TextureFrame lastTex = null;
-
     public OMXGLMediaPlayer() {
         super(TextureType.KHRImage, true);
         if(!available) {
@@ -76,17 +75,15 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
     }
     
     @Override
-    protected TextureSequence.TextureFrame createTexImage(GL gl, int idx, int[] tex) {
-        final EGLTextureFrame eglTex = (EGLTextureFrame) super.createTexImage(gl, idx, tex);
-        _setStreamEGLImageTexture2D(moviePtr, idx, tex[idx], eglTex.getImage(), eglTex.getSync());
-        lastTex = eglTex;
+    protected TextureSequence.TextureFrame createTexImage(GL gl, int texName) {
+        final EGLTextureFrame eglTex = (EGLTextureFrame) super.createTexImage(gl, texName);
+        _setStreamEGLImageTexture2D(moviePtr, texName, eglTex.getImage(), eglTex.getSync());
         return eglTex;
     }
     
     @Override
-    protected void destroyTexImage(GL gl, TextureSequence.TextureFrame imgTex) {
-        lastTex = null;
-        super.destroyTexImage(gl, imgTex);        
+    protected void destroyTexFrame(GL gl, TextureSequence.TextureFrame imgTex) {
+        super.destroyTexFrame(gl, imgTex);        
     }
     
     @Override
@@ -99,7 +96,7 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
     }
     
     @Override
-    protected void initGLStreamImpl(GL gl, int[] texNames) throws IOException {
+    protected void initGLStreamImpl(GL gl) throws IOException {
         if(0==moviePtr) {
             throw new GLException("OMX native instance null");
         }
@@ -119,6 +116,10 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
     protected int getCurrentPositionImpl() {
         return 0!=moviePtr ? _getCurrentPosition(moviePtr) : 0;
     }
+    @Override
+    protected int getAudioPTSImpl() {
+        return getCurrentPositionImpl();
+    }
 
     @Override
     protected boolean setPlaySpeedImpl(float rate) {
@@ -168,24 +169,23 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
     }
 
     @Override
-    protected TextureSequence.TextureFrame getLastTextureImpl() {
-        return lastTex;
-    }
-    
-    @Override
-    protected TextureSequence.TextureFrame getNextTextureImpl(GL gl, boolean blocking) {
+    protected boolean getNextTextureImpl(GL gl, TextureFrame nextFrame, boolean blocking) {
         if(0==moviePtr) {
             throw new GLException("OMX native instance null");
         }
         final int nextTex = _getNextTextureID(moviePtr, blocking);
         if(0 < nextTex) {
-            final TextureSequence.TextureFrame eglImgTex = texFrameMap.get(new Integer(_getNextTextureID(moviePtr, blocking)));
+            /* FIXME 
+            final TextureSequence.TextureFrame eglImgTex = 
+                    texFrameMap.get(new Integer(_getNextTextureID(moviePtr, blocking)));
             if(null!=eglImgTex) {
                 lastTex = eglImgTex;
-            }
+            } */
         }
-        return lastTex;
+        return true;
     }
+    @Override
+    protected void syncFrame2Audio(TextureFrame frame) { }
     
     private String replaceAll(String orig, String search, String repl) {
         String dest=null;
@@ -216,7 +216,7 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
     private native void _setStream(long moviePtr, int textureNum, String path);
     private native void _activateStream(long moviePtr);
     
-    private native void _setStreamEGLImageTexture2D(long moviePtr, int i, int tex, long image, long sync);
+    private native void _setStreamEGLImageTexture2D(long moviePtr, int tex, long image, long sync);
     private native int  _seek(long moviePtr, int position);
     private native void _setPlaySpeed(long moviePtr, float rate);
     private native void _play(long moviePtr);