GLMediaPlayer Multithreaded Decoding: GLMediaPlayer* (Part-6) - DONE

Multithreaded decoding and API should be considered stable by now,
minor changes may apply if Android/OMX impl. requires it.

We still need to solve TODO's as listed below, copied from 474ce65081ecd452215bc07ab866666cb11ca8b1.

+++

- *TextureFrame OO changes:
  - TextureFrame extends TimeFrameI

- GLMediaPlayerImpl*
  - Adapt to Ringbuffer changes of GlueGen commit f9f881e59c78e3036cb3f956bc97cfc3197f620d

  - Fix impl. method's API doc
    - getNextTextureImpl(..) returns video PTS

  - Fix audio-only playback

  - frame dropping shall only happen if:
     - previous frame has not been dropped
     - frame is too later
     - one decoded frame is already available

  - Don't block for decoder anymore:
     - nextFrame = "videoFramesDecoded.getBlocking() -> videoFramesDecoded.get()";
     No 'next decoded frame avail' only could mean:
       - slow decoding/hardware
       - slow transport
     hence we shall not block rendering.

  - Add DEBUG output if using last frame

  - Add integer property 'jogl.debug.GLMediaPlayer.StreamWorker.delay' in milliseconds
    to simulate slow decoding, i.e. delay is added in StreamWorker after decoding
    before pushing new frame to Ringbuffer.

  - FFMPEGMediaPlayer:
    - audioFrameLimitWithVideo 128 -> 64
    - audioFrameLimitAudioOnly 128 -> 32
    - uses AudioSink's 'enqueueData(int pts, ByteBuffer bytes, int byteCount)'
    - fixes for audio-only playback

+++

Working Tests: MovieSimple and MovieCube

TODO-1: Fix
  - Android
  - OMXGLMediaPlayer

TODO-2:
  - Fix issue where async audio frames arrive much later than 1st video frame, i.e. around 300ms.
  - Default TextureCount .. maybe 3 ?
  - Adding Audio synchronization ?
  - Find 'truth' about correlation of audio and video PTS values,
    currently, we assume both to be unrelated ?

9 files changed, 251 insertions, 188 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/util/av/GLMediaPlayer.java b/src/jogl/classes/com/jogamp/opengl/util/av/GLMediaPlayer.java
index 726eddb01..02fbd721c 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/av/GLMediaPlayer.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/av/GLMediaPlayer.java
@@ -35,6 +35,7 @@ import javax.media.opengl.GLException;
 import jogamp.opengl.Debug;
 
 import com.jogamp.opengl.util.texture.TextureSequence;
+import com.jogamp.opengl.util.TimeFrameI;
 
 /**
  * GLMediaPlayer interface specifies a {@link TextureSequence} state machine
@@ -116,14 +117,11 @@ import com.jogamp.opengl.util.texture.TextureSequence;
  * to be properly considered by {@link GLMediaPlayerFactory#create(ClassLoader, String)}
  * and {@link GLMediaPlayerFactory#createDefault()}.
  * </p>
+ * <a name="timestampaccuracy"><h5>Timestamp Accuracy</h5></a>
  * <p>
- * Variable type, value range and dimension has been chosen to suit embedded CPUs
- * and characteristics of audio and video streaming.
- * Milliseconds of type integer with a maximum value of {@link Integer#MAX_VALUE} 
- * will allow tracking time up 2,147,483.647 seconds or
- * 24 days 20 hours 31 minutes and 23 seconds.
- * Milliseconds granularity is also more than enough to deal with A-V synchronization,
- * where the threshold usually lies within 22ms. 
+ * <p>
+ * Timestamp type and value range has been chosen to suit embedded CPUs
+ * and characteristics of audio and video streaming. See {@link TimeFrameI}.
  * </p>
  * 
  * <a name="synchronization"><h5>Audio and video synchronization</h5></a>
diff --git a/src/jogl/classes/com/jogamp/opengl/util/texture/TextureSequence.java b/src/jogl/classes/com/jogamp/opengl/util/texture/TextureSequence.java
index e13e5ff13..8b6cc1bf9 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/texture/TextureSequence.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/texture/TextureSequence.java
@@ -29,6 +29,8 @@ package com.jogamp.opengl.util.texture;
 
 import javax.media.opengl.GL;
 
+import com.jogamp.opengl.util.TimeFrameI;
+
 /**
  * Protocol for texture sequences, like animations, movies, etc.
  * <p>
@@ -109,35 +111,21 @@ public interface TextureSequence {
      * Texture holder interface, maybe specialized by implementation
      * to associated related data. 
      */
-    public static class TextureFrame {
-        /** Constant marking an invalid PTS, i.e. Integer.MIN_VALUE == 0x80000000 == {@value}. Sync w/ native code. */
-        public static final int INVALID_PTS = 0x80000000;
-        
-        /** Constant marking the end of the stream PTS, i.e. Integer.MIN_VALUE - 1 == 0x7FFFFFFF == {@value}. Sync w/ native code. */
-        public static final int END_OF_STREAM_PTS = 0x7FFFFFFF;    
-        
+    public static class TextureFrame extends TimeFrameI {
+        public TextureFrame(Texture t, int pts, int duration) {
+            super(pts, duration);
+            texture = t;
+        }
         public TextureFrame(Texture t) {
             texture = t;
-            pts = INVALID_PTS;
-            duration = 0;
         }
         
         public final Texture getTexture() { return texture; }
-        /** Get this frame's presentation timestamp (PTS) in milliseconds. */
-        public final int getPTS() { return pts; }
-        /** Set this frame's presentation timestamp (PTS) in milliseconds. */
-        public final void setPTS(int pts) { this.pts = pts; }
-        /** Get this frame's duration in milliseconds. */
-        public final int getDuration() { return duration; }
-        /** Set this frame's duration in milliseconds. */
-        public final void setDuration(int duration) { this.duration = duration; }
         
         public String toString() {
-            return "TextureFrame[pts " + pts + " ms, l " + duration + " ms, texID "+ texture.getTextureObject() + "]";
+            return "TextureFrame[pts " + pts + " ms, l " + duration + " ms, texID "+ (null != texture ? texture.getTextureObject() : 0) + "]";
         }
         protected final Texture texture;
-        protected int pts;
-        protected int duration;
     }
 
     public interface TexSeqEventListener<T extends TextureSequence> {
diff --git a/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java b/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
index 578a219e9..63d9c8d22 100644
--- a/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
+++ b/src/jogl/classes/jogamp/opengl/android/av/AndroidGLMediaPlayerAPI14.java
@@ -35,6 +35,7 @@ import javax.media.opengl.GLException;
 
 import com.jogamp.common.os.AndroidVersion;
 import com.jogamp.common.os.Platform;
+import com.jogamp.opengl.util.TimeFrameI;
 import com.jogamp.opengl.util.av.GLMediaPlayer;
 import com.jogamp.opengl.util.texture.Texture;
 import com.jogamp.opengl.util.texture.TextureSequence;
@@ -227,7 +228,8 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
     }
     
     @Override
-    protected final boolean getNextTextureImpl(GL gl, TextureFrame nextFrame) {
+    protected final int getNextTextureImpl(GL gl, TextureFrame nextFrame) {
+        int pts = TimeFrameI.INVALID_PTS;
         if(null != stex && null != mp) {
             final SurfaceTextureFrame nextSFrame = (SurfaceTextureFrame) nextFrame;
             final Surface nextSurface = nextSFrame.getSurface();
@@ -254,11 +256,12 @@ public class AndroidGLMediaPlayerAPI14 extends GLMediaPlayerImpl {
                 final SurfaceTexture nextSTex = nextSFrame.getSurfaceTexture(); 
                 nextSTex.updateTexImage();
                 // nextFrame.setPTS( (int) ( nextSTex.getTimestamp() / 1000000L ) ); // nano -9 -> milli -3
-                nextFrame.setPTS( mp.getCurrentPosition() );
+                pts = mp.getCurrentPosition();
+                nextFrame.setPTS( pts );
                 // stex.getTransformMatrix(atex.getSTMatrix());
             }
         }
-        return true;
+        return pts;
     }
     
     @Override
diff --git a/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java b/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
index 8193175b7..238595d45 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/GLMediaPlayerImpl.java
@@ -42,14 +42,17 @@ import javax.media.opengl.GLES2;
 import javax.media.opengl.GLException;
 import javax.media.opengl.GLProfile;
 
+import jogamp.opengl.Debug;
+
 import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.LFRingbuffer;
 import com.jogamp.common.util.Ringbuffer;
+import com.jogamp.opengl.util.TimeFrameI;
 import com.jogamp.opengl.util.av.AudioSink;
-import com.jogamp.opengl.util.av.AudioSink.AudioFrame;
 import com.jogamp.opengl.util.av.GLMediaPlayer;
 import com.jogamp.opengl.util.texture.Texture;
 import com.jogamp.opengl.util.texture.TextureSequence;
+import com.jogamp.opengl.util.texture.TextureSequence.TextureFrame;
 
 /**
  * After object creation an implementation may customize the behavior:
@@ -64,6 +67,7 @@ import com.jogamp.opengl.util.texture.TextureSequence;
  * </p>
  */
 public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
+    private static final int STREAM_WORKER_DELAY = Debug.getIntProperty("jogl.debug.GLMediaPlayer.StreamWorker.delay", false, 0);
 
     protected static final String unknown = "unknown";
 
@@ -151,13 +155,6 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
 
     private ArrayList<GLMediaEventListener> eventListeners = new ArrayList<GLMediaEventListener>();
 
-    private static Ringbuffer.AllocEmptyArray<TextureFrame> rbAllocTextureFrameArray = new Ringbuffer.AllocEmptyArray<TextureFrame>() {
-        @Override
-        public TextureFrame[] newArray(int size) {
-            return new TextureFrame[size];
-        }        
-    };
-    
     protected GLMediaPlayerImpl() {
         this.textureCount=0;
         this.textureTarget=GL.GL_TEXTURE_2D;
@@ -284,6 +281,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     @Override
     public final State play() {
         synchronized( stateLock ) {
+            final State preState = state;
             switch( state ) {
                 case Paused:
                     if( playImpl() ) {
@@ -296,7 +294,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                     }
                 default:
             }
-            if(DEBUG) { System.err.println("Play: "+toString()); }
+            if(DEBUG) { System.err.println("Play: "+preState+" -> "+state+", "+toString()); }
             return state;
         }
     }
@@ -308,6 +306,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     }
     private final State pauseImpl(int event_mask) {
         synchronized( stateLock ) {
+            final State preState = state;
             if( State.Playing == state ) {
                 event_mask = addStateEventMask(event_mask, GLMediaPlayer.State.Paused);
                 state = State.Paused;
@@ -320,7 +319,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                     play();
                 }
             }
-            if(DEBUG) { System.err.println("Pause: "+toString()); }            
+            if(DEBUG) { System.err.println("Pause: "+preState+" -> "+state+", "+toString()); }
             return state;
         }
     }
@@ -329,6 +328,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     @Override
     public final int seek(int msec) {
         synchronized( stateLock ) {
+            final State preState = state;
             final int pts1;
             switch(state) {
                 case Playing:
@@ -348,7 +348,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                 default:
                     pts1 = 0;
             }
-            if(DEBUG) { System.err.println("Seek("+msec+"): "+toString()); }
+            if(DEBUG) { System.err.println("Seek("+msec+"): "+preState+" -> "+state+", "+toString()); }
             return pts1;
         }
     }
@@ -362,6 +362,8 @@ 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 ) {
                 if( rate > 0.01f ) {
@@ -371,11 +373,11 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                     if( setPlaySpeedImpl(rate) ) {
                         resetAudioVideoPTS();
                         playSpeed = rate;
-                        if(DEBUG) { System.err.println("SetPlaySpeed: "+toString()); }
                         res = true;
                     }
                 }
             }
+            if(DEBUG) { System.err.println("setPlaySpeed("+rate+"): "+preState+"/"+preSpeed+" -> "+state+"/"+playSpeed+", "+toString()); }
             return res;
         }
     }
@@ -464,14 +466,16 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                     removeAllTextureFrames(gl);
                     initGLImpl(gl);
                     videoFramesOrig = createTexFrames(gl, textureCount);
-                    videoFramesFree = new LFRingbuffer<TextureFrame>(videoFramesOrig, rbAllocTextureFrameArray);
-                    videoFramesDecoded = new LFRingbuffer<TextureFrame>(textureCount, rbAllocTextureFrameArray);
+                    videoFramesFree = new LFRingbuffer<TextureFrame>(videoFramesOrig);
+                    videoFramesDecoded = new LFRingbuffer<TextureFrame>(TextureFrame[].class, textureCount);
                     lastFrame = videoFramesFree.getBlocking( );
                     streamWorker.initGL(gl);
                 } else {
+                    removeAllTextureFrames(null);
                     initGLImpl(null);
                     setTextureFormat(-1, -1);
                     setTextureType(-1);
+                    videoFramesOrig = null;
                     videoFramesFree = null;
                     videoFramesDecoded = null;
                     lastFrame = null;
@@ -482,6 +486,15 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
             }
         }
     }
+    /** 
+     * Shall initialize all GL related resources, if not audio-only.
+     * <p>
+     * Shall also take care of {@link AudioSink} initialization if appropriate.
+     * </p>
+     * @param gl null for audio-only, otherwise a valid and current GL object.
+     * @throws IOException
+     * @throws GLException
+     */
     protected abstract void initGLImpl(GL gl) throws IOException, GLException;
     
     /** 
@@ -570,12 +583,12 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     }
     
     private final void removeAllTextureFrames(GL gl) {
-        if( null != videoFramesOrig ) {
-            final TextureFrame[] texFrames = videoFramesOrig;
-            videoFramesOrig = null;
-            videoFramesFree = null;
-            videoFramesDecoded = null;
-            lastFrame = null;
+        final TextureFrame[] texFrames = videoFramesOrig;
+        videoFramesOrig = null;
+        videoFramesFree = null;
+        videoFramesDecoded = null;
+        lastFrame = null;
+        if( null != texFrames ) {
             for(int i=0; i<texFrames.length; i++) {
                 final TextureFrame frame = texFrames[i];
                 if(null != frame) {
@@ -605,28 +618,32 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                     do {
                         final long currentTimeMillis;
                         final boolean playCached = null != cachedFrame;
+                        final boolean droppedFrame;
                         if( dropFrame ) {
                             presentedFrameCount--;
                             dropFrame = false;
+                            droppedFrame = true;
+                        } else {
+                            droppedFrame = false;
                         }
                         if( playCached ) {
                             nextFrame = cachedFrame;
                             cachedFrame = null;
                             presentedFrameCount--;
                         } else if( STREAM_ID_NONE != vid ) {
-                            nextFrame = videoFramesDecoded.getBlocking();
+                            nextFrame = videoFramesDecoded.get();
                         }
                         currentTimeMillis = Platform.currentTimeMillis();
                         if( null != nextFrame ) {
                             presentedFrameCount++;
                             final int video_pts = nextFrame.getPTS();
-                            if( video_pts == TextureFrame.END_OF_STREAM_PTS ) {
+                            if( video_pts == TimeFrameI.END_OF_STREAM_PTS ) {
                                 pauseImpl(GLMediaEventListener.EVENT_CHANGE_EOS);
-                            } else if( video_pts != TextureFrame.INVALID_PTS ) {
+                            } else if( video_pts != TimeFrameI.INVALID_PTS ) {
                                 final int audio_pts = getAudioPTSImpl();
                                 final int audio_scr = (int) ( ( currentTimeMillis - audio_scr_t0 ) * playSpeed );
                                 final int d_apts;
-                                if( audio_pts != AudioFrame.INVALID_PTS ) {
+                                if( audio_pts != TimeFrameI.INVALID_PTS ) {
                                     d_apts = audio_pts - audio_scr;
                                 } else {
                                     d_apts = 0;
@@ -662,7 +679,9 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                                     if( dt > maxVideoDelay ) {
                                         cachedFrame = nextFrame;
                                         nextFrame = null;
-                                    } else if ( dt < -maxVideoDelay ) {
+                                    } else if ( !droppedFrame && dt < -maxVideoDelay && videoFramesDecoded.size() > 0 ) {
+                                        // only drop if prev. frame has not been dropped and 
+                                        // frame is too late and one decoded frame is already available.
                                         dropFrame = true;
                                     }
                                     video_pts_last = video_pts;
@@ -682,6 +701,20 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                                 lastFrame = nextFrame;
                                 videoFramesFree.putBlocking(_lastFrame);
                             }
+                        } else if( DEBUG ) {                            
+                            final int video_pts = lastFrame.getPTS();
+                            final int audio_pts = getAudioPTSImpl();
+                            final int audio_scr = (int) ( ( currentTimeMillis - audio_scr_t0 ) * playSpeed );
+                            final int d_apts;
+                            if( audio_pts != TimeFrameI.INVALID_PTS ) {
+                                d_apts = audio_pts - audio_scr;
+                            } else {
+                                d_apts = 0;
+                            }
+                            final int video_scr = video_scr_pts + (int) ( ( currentTimeMillis - video_scr_t0 ) * playSpeed );
+                            final int d_vpts = video_pts - video_scr;
+                            System.err.println( "AV~: dT "+(currentTimeMillis-lastTimeMillis)+", "+
+                                    getPerfStringImpl( video_scr, video_pts, d_vpts, audio_scr, audio_pts, d_apts, 0 ) + ", droppedFrame "+droppedFrame);
                         }
                         lastTimeMillis = currentTimeMillis;
                     } while( dropFrame );
@@ -696,12 +729,27 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     protected void preNextTextureImpl(GL gl) {}
     protected void postNextTextureImpl(GL gl) {}
     /**
+     * Process stream until the next video frame, i.e. {@link TextureFrame}, has been reached.
+     * Audio frames, i.e. {@link AudioSink.AudioFrame}, shall be handled in the process.
+     * <p>
+     * Video frames shall be ignored, if {@link #getVID()} is {@link #STREAM_ID_NONE}.
+     * </p> 
+     * <p>
+     * Audio frames shall be ignored, if {@link #getAID()} is {@link #STREAM_ID_NONE}.
+     * </p>
+     * <p>
+     * Methods is invoked on the <a href="#streamworker"><i>StreamWorker</i> decoding thread</a>.
+     * </p> 
+     * <p>
      * Implementation shall care of OpenGL synchronization as required, e.g. glFinish()/glFlush()!
-     * @param gl
-     * @param nextFrame
-     * @return
+     * </p>
+     * @param gl valid and current GL instance, shall be <code>null</code> for audio only. 
+     * @param nextFrame the {@link TextureFrame} to store the video PTS and texture data,
+     *                  shall be <code>null</code> for audio only.
+     * @return the last processed video PTS value, maybe {@link TimeFrameI#INVALID_PTS} if video frame is invalid or n/a.
+     *         Will be {@link TimeFrameI#END_OF_STREAM_PTS} if end of stream reached. 
      */
-    protected abstract boolean getNextTextureImpl(GL gl, TextureFrame nextFrame);
+    protected abstract int getNextTextureImpl(GL gl, TextureFrame nextFrame);
     
     /** 
      * {@inheritDoc}
@@ -731,12 +779,12 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
     private void flushAllVideoFrames() {
         if( null != videoFramesFree ) {
             videoFramesFree.resetFull(videoFramesOrig);
+            lastFrame = videoFramesFree.get();
+            if( null == lastFrame ) { throw new InternalError("XXX"); }
         }
         if( null != videoFramesDecoded ) {
             videoFramesDecoded.clear();
         }
-        lastFrame = videoFramesFree.get( );
-        if( null == lastFrame ) { throw new InternalError("XXX"); }
         cachedFrame = null;
     }
     private void resetAllAudioVideoSync() {
@@ -842,14 +890,16 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
         public synchronized void doPause() {
             if( isActive ) {
                 shallPause = true;
-                if( isBlocked && isActive ) {
-                    this.interrupt();
-                }
-                while( isActive ) {
-                    try {
-                        this.wait(); // wait until paused
-                    } catch (InterruptedException e) {
-                        e.printStackTrace();
+                if( Thread.currentThread() != this ) {
+                    if( isBlocked && isActive ) {
+                        this.interrupt();
+                    }
+                    while( isActive ) {
+                        try {
+                            this.wait(); // wait until paused
+                        } catch (InterruptedException e) {
+                            e.printStackTrace();
+                        }
                     }
                 }
             }
@@ -857,12 +907,14 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
         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();
+                if( Thread.currentThread() != this ) {
+                    while( !isActive ) {
+                        this.notify();  // wake-up pause-block
+                        try {
+                            this.wait(); // wait until resumed 
+                        } catch (InterruptedException e) {
+                            e.printStackTrace();
+                        }
                     }
                 }
             }
@@ -870,15 +922,17 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
         public synchronized void doStop() {
             if( isRunning ) {
                 shallStop = true;
-                if( isBlocked && isRunning ) {
-                    this.interrupt();
-                }
-                while( isRunning ) {
-                    this.notify();  // wake-up pause-block (opt)
-                    try {
-                        this.wait();  // wait until stopped
-                    } catch (InterruptedException e) {
-                        e.printStackTrace();
+                if( Thread.currentThread() != this ) {
+                    if( isBlocked && isRunning ) {
+                        this.interrupt();
+                    }
+                    while( isRunning ) {
+                        this.notify();  // wake-up pause-block (opt)
+                        try {
+                            this.wait();  // wait until stopped
+                        } catch (InterruptedException e) {
+                            e.printStackTrace();
+                        }
                     }
                 }
             }
@@ -939,51 +993,68 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
                             preNextTextureImpl(sharedGLCtx.getGL());
                             sharedGLCtxCurrent = true;
                         }
+                        if( null == videoFramesFree ) {
+                            throw new InternalError("XXX videoFramesFree is null");
+                        }
                     }
                 }
                 
                 if( !shallStop ) {
                     TextureFrame nextFrame = null;
-                    if( null != sharedGLCtx ) {
-                        try {
-                            isBlocked = true;
-                            nextFrame = videoFramesFree.getBlocking( );
-                            isBlocked = false;
-                            nextFrame.setPTS( TextureFrame.INVALID_PTS ); // mark invalid until processed!
-                            final GL gl = sharedGLCtxCurrent ? sharedGLCtx.getGL() : null;
-                            if( getNextTextureImpl(gl, nextFrame) ) {
+                    try {
+                        final GL gl;
+                        isBlocked = true;
+                        if( null != videoFramesFree ) {
+                            nextFrame = videoFramesFree.getBlocking();
+                            nextFrame.setPTS( TimeFrameI.INVALID_PTS ); // mark invalid until processed!
+                            gl = sharedGLCtx.getGL();
+                        } else {
+                            gl = null;
+                        }
+                        isBlocked = false;
+                        final int vPTS = getNextTextureImpl(gl, nextFrame);
+                        if( TimeFrameI.INVALID_PTS != vPTS ) {
+                            if( null != nextFrame ) {
+                                if( STREAM_WORKER_DELAY > 0 ) {
+                                    Thread.sleep(STREAM_WORKER_DELAY);
+                                }
                                 if( !videoFramesDecoded.put(nextFrame) ) {
                                     throw new InternalError("XXX: free "+videoFramesFree+", decoded "+videoFramesDecoded+", "+GLMediaPlayerImpl.this); 
                                 }
                                 newFrameAvailable(nextFrame, Platform.currentTimeMillis());
                                 nextFrame = null;
-                            }
-                        } catch (InterruptedException e) {
-                            isBlocked = false;
-                            if( !shallStop && !shallPause ) {
-                                streamErr = new StreamException("InterruptedException while decoding: "+GLMediaPlayerImpl.this.toString(), e);
-                            }
-                        } catch (Throwable t) {
-                            streamErr = new StreamException(t.getClass().getSimpleName()+" while decoding: "+GLMediaPlayerImpl.this.toString(), t);
-                        } finally {
-                            if( null != nextFrame ) { // put back
-                                videoFramesFree.put(nextFrame);
-                            }
-                            if( null != streamErr ) {
-                                if( DEBUG ) {
-                                    final Throwable t = null != streamErr.getCause() ? streamErr.getCause() : streamErr;
-                                    System.err.println("Caught StreamException: "+t.getMessage());
-                                    t.printStackTrace();
+                            } else {
+                                // audio only
+                                if( TimeFrameI.END_OF_STREAM_PTS == vPTS ) {
+                                    // state transition incl. notification
+                                    shallPause = true;
+                                    isActive = false;
+                                    pauseImpl(GLMediaEventListener.EVENT_CHANGE_EOS);
                                 }
-                                // state transition incl. notification
-                                shallPause = true;
-                                isActive = false;
-                                pause();
                             }
                         }
-                    } else {
-                        // audio only
-                        getNextTextureImpl(null, null);
+                    } catch (InterruptedException e) {
+                        isBlocked = false;
+                        if( !shallStop && !shallPause ) {
+                            streamErr = new StreamException("InterruptedException while decoding: "+GLMediaPlayerImpl.this.toString(), e);
+                        }
+                    } catch (Throwable t) {
+                        streamErr = new StreamException(t.getClass().getSimpleName()+" while decoding: "+GLMediaPlayerImpl.this.toString(), t);
+                    } finally {
+                        if( null != nextFrame ) { // put back
+                            videoFramesFree.put(nextFrame);
+                        }
+                        if( null != streamErr ) {
+                            if( DEBUG ) {
+                                final Throwable t = null != streamErr.getCause() ? streamErr.getCause() : streamErr;
+                                System.err.println("Caught StreamException: "+t.getMessage());
+                                t.printStackTrace();
+                            }
+                            // state transition incl. notification
+                            shallPause = true;
+                            isActive = false;
+                            pauseImpl(GLMediaEventListener.EVENT_CHANGE_ERR);
+                        }
                     }
                 }
             }
@@ -1106,13 +1177,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
             destroyImpl(gl);
             removeAllTextureFrames(gl);
             textureCount=0;
-            if( null != videoFramesFree ) {
-                videoFramesFree.clear();
-            }
-            if( null != videoFramesDecoded ) {
-                videoFramesDecoded.clear();
-            }
-            changeState(0, State.Uninitialized);            
+            changeState(0, State.Uninitialized);
             return state;
         }
     }
@@ -1215,7 +1280,7 @@ public abstract class GLMediaPlayerImpl implements GLMediaPlayer {
         final String audioSinkInfo;
         final AudioSink audioSink = getAudioSink();
         if( null != audioSink ) {
-            audioSinkInfo = "AudioSink[frames [d "+audioSink.getEnqueuedFrameCount()+", q "+audioSink.getQueuedFrameCount()+", f "+audioSink.getFreeFrameCount()+"], time "+audioSink.getQueuedTime()+", bytes "+audioSink.getQueuedByteCount()+"]";
+            audioSinkInfo = "AudioSink[frames [p "+audioSink.getEnqueuedFrameCount()+", q "+audioSink.getQueuedFrameCount()+", f "+audioSink.getFreeFrameCount()+", c "+audioSink.getFrameCount()+"], time "+audioSink.getQueuedTime()+", bytes "+audioSink.getQueuedByteCount()+"]";
         } else {
             audioSinkInfo = "";
         }
diff --git a/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java b/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java
index 31ac55ec3..9066f3dd1 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/NullGLMediaPlayer.java
@@ -83,9 +83,10 @@ public class NullGLMediaPlayer extends GLMediaPlayerImpl {
     }
     
     @Override
-    protected final boolean getNextTextureImpl(GL gl, TextureFrame nextFrame) {
-        nextFrame.setPTS( getAudioPTSImpl() );
-        return true;
+    protected final int getNextTextureImpl(GL gl, TextureFrame nextFrame) {
+        final int pts = getAudioPTSImpl();
+        nextFrame.setPTS( pts );
+        return pts;
     }
     
     @Override
@@ -102,40 +103,42 @@ public class NullGLMediaPlayer extends GLMediaPlayerImpl {
             texData = null;
         }                      
     }
-        
-    @Override
-    protected final void initStreamImpl(int vid, int aid) throws IOException {
+    
+    public final static TextureData createTestTextureData() {
+        TextureData res = null;
         try {
-            URLConnection urlConn = IOUtil.getResource("jogl/util/data/av/test-ntsc01-160x90.png", this.getClass().getClassLoader());
+            URLConnection urlConn = IOUtil.getResource("jogl/util/data/av/test-ntsc01-160x90.png", NullGLMediaPlayer.class.getClassLoader());
             if(null != urlConn) {
-                texData = TextureIO.newTextureData(GLProfile.getGL2ES2(), urlConn.getInputStream(), false, TextureIO.PNG);
+                res = TextureIO.newTextureData(GLProfile.getGL2ES2(), urlConn.getInputStream(), false, TextureIO.PNG);
             }
         } catch (Exception e) {
             e.printStackTrace();
         }
-        final int _w, _h;
-        if(null != texData) {
-            _w = texData.getWidth();
-            _h = texData.getHeight();            
-        } else {
-            _w = 640;
-            _h = 480;
-            ByteBuffer buffer = Buffers.newDirectByteBuffer(_w*_h*4);
+        if(null == res) {
+            final int w = 160;
+            final int h =  90;
+            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, _w, _h, 0,
+            res = new TextureData(GLProfile.getGL2ES2(),
+                   GL.GL_RGBA, w, h, 0,
                    GL.GL_RGBA, GL.GL_UNSIGNED_BYTE, false, 
                    false, false, buffer, null);
         }
+        return res;
+    }
+        
+    @Override
+    protected final void initStreamImpl(int vid, int aid) throws IOException {
+        texData = createTestTextureData();
         final int r_aid = GLMediaPlayer.STREAM_ID_NONE == aid ? GLMediaPlayer.STREAM_ID_NONE : GLMediaPlayer.STREAM_ID_AUTO; 
         final float _fps = 24f;
         final int _duration = 10*60*1000; // msec
         final int _totalFrames = (int) ( (_duration/1000)*_fps );
         updateAttributes(GLMediaPlayer.STREAM_ID_AUTO, r_aid, 
-                         _w, _h, 0, 
+                         texData.getWidth(), texData.getHeight(), 0, 
                          0, 0, _fps, 
                          _totalFrames, 0, _duration, "png-static", null);
     }    
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 f1213d751..a800f2a31 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGMediaPlayer.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/impl/FFMPEGMediaPlayer.java
@@ -40,6 +40,7 @@ import javax.media.opengl.GLException;
 
 import com.jogamp.common.util.VersionNumber;
 import com.jogamp.gluegen.runtime.ProcAddressTable;
+import com.jogamp.opengl.util.TimeFrameI;
 import com.jogamp.opengl.util.GLPixelStorageModes;
 import com.jogamp.opengl.util.av.AudioSink;
 import com.jogamp.opengl.util.av.AudioSink.AudioDataFormat;
@@ -169,7 +170,8 @@ public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
     /** Initial audio frame count, ALAudioSink may grow buffer! */
     private int initialAudioFrameCount = AV_DEFAULT_AFRAMES;
     private final int audioFrameGrowAmount = 8;
-    private final int audioFrameLimit = 128;
+    private final int audioFrameLimitWithVideo =  64; // 128;
+    private final int audioFrameLimitAudioOnly =  32; // 64;
     private SampleFormat aSampleFmt = null;
     private AudioSink.AudioDataFormat avChosenAudioFormat;
     private AudioSink.AudioDataFormat sinkChosenAudioFormat;
@@ -235,6 +237,7 @@ public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
         if(null == audioSink) {
             throw new GLException("AudioSink null");
         }
+        final int audioFrameLimit;
         if( null != gl ) {
             final GLContextImpl ctx = (GLContextImpl)gl.getContext();
             AccessController.doPrivileged(new PrivilegedAction<Object>() {
@@ -247,7 +250,10 @@ public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
                     setGLFuncs0(moviePtr, procAddrGLTexSubImage2D, procAddrGLGetError, procAddrGLFlush, procAddrGLFinish);
                     return null;
             } } );
-        }            
+            audioFrameLimit = audioFrameLimitWithVideo;
+        } else {
+            audioFrameLimit = audioFrameLimitAudioOnly;
+        }
 
         sinkChosenAudioFormat = audioSink.initSink(avChosenAudioFormat, initialAudioFrameCount, audioFrameGrowAmount, audioFrameLimit);
         if(DEBUG) {
@@ -303,7 +309,7 @@ public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
      */
     private void updateAttributes2(int pixFmt, int planes, int bitsPerPixel, int bytesPerPixelPerPlane,
                                    int lSz0, int lSz1, int lSz2,
-                                   int tWd0, int tWd1, int tWd2,
+                                   int tWd0, int tWd1, int tWd2, int tH,
                                    int audioFrameCount, int sampleFmt, int sampleRate, int channels) {
         vPixelFmt = PixelFormat.valueOf(pixFmt);
         vPlanes = planes;
@@ -320,7 +326,7 @@ public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
                 // w*h + 2 ( w/2 * h/2 ) 
                 // w*h + w*h/2
                 // 2*w/2 * h 
-                texWidth = vTexWidth[0] + vTexWidth[1]; texHeight = height; 
+                texWidth = vTexWidth[0] + vTexWidth[1]; texHeight = tH; 
                 break;
             // case PIX_FMT_YUYV422:
             case RGB24:
@@ -329,7 +335,7 @@ public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
             case RGBA:
             case ABGR:
             case BGRA:
-                texWidth = vTexWidth[0]; texHeight = height; 
+                texWidth = vTexWidth[0]; texHeight = tH; 
                 break;
             default: // FIXME: Add more formats !
                 throw new RuntimeException("Unsupported pixelformat: "+vPixelFmt);
@@ -487,42 +493,33 @@ public class FFMPEGMediaPlayer extends GLMediaPlayerImpl {
     }
     
     @Override
-    protected final boolean getNextTextureImpl(GL gl, TextureFrame nextFrame) {
+    protected final int getNextTextureImpl(GL gl, TextureFrame nextFrame) {
         if(0==moviePtr) {
             throw new GLException("FFMPEG native instance null");
         }
-        int vPTS = TextureFrame.INVALID_PTS;
-        if( null != nextFrame ) {
+        int vPTS = TimeFrameI.INVALID_PTS;
+        if( null != gl ) {
             final Texture tex = nextFrame.getTexture();
             tex.enable(gl);
             tex.bind(gl);
         }
 
         /** Try decode up to 10 packets to find one containing video. */
-        for(int i=0; TextureFrame.INVALID_PTS == vPTS && 10 > i; i++) {
+        for(int i=0; TimeFrameI.INVALID_PTS == vPTS && 10 > i; i++) {
            vPTS = readNextPacket0(moviePtr, textureTarget, textureFormat, textureType);
         }
-        if( TextureFrame.INVALID_PTS != vPTS ) {
-            if( null != nextFrame ) {
-                nextFrame.setPTS(vPTS);
-            }
-            return true;
-        } else {
-            return false;
+        if( null != nextFrame ) {
+            nextFrame.setPTS(vPTS);
         }
-    }
+        return vPTS;
+    }    
     
     private final void pushSound(ByteBuffer sampleData, int data_size, int audio_pts) {
         setFirstAudioPTS2SCR( audio_pts );
         if( 1.0f == playSpeed || audioSinkPlaySpeedSet ) {
-            audioSink.enqueueData( new AudioSink.AudioFrame(sampleData, data_size, audio_pts ) );
+            audioSink.enqueueData( audio_pts, sampleData, data_size);
         }
     }
-
-    private final int getBytesPerMS(int time) {
-        final int bytesPerSample = sinkChosenAudioFormat.sampleSize >>> 3; // /8
-        return time * ( sinkChosenAudioFormat.channelCount * bytesPerSample * ( sinkChosenAudioFormat.sampleRate / 1000 ) );        
-    }
     
     private static native int getAvUtilVersion0();
     private static native int getAvFormatVersion0();
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 e1b773e9b..faa6a56c4 100644
--- a/src/jogl/classes/jogamp/opengl/util/av/impl/OMXGLMediaPlayer.java
+++ b/src/jogl/classes/jogamp/opengl/util/av/impl/OMXGLMediaPlayer.java
@@ -164,12 +164,13 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
     }
 
     @Override
-    protected boolean getNextTextureImpl(GL gl, TextureFrame nextFrame) {
+    protected int getNextTextureImpl(GL gl, TextureFrame nextFrame) {
         if(0==moviePtr) {
             throw new GLException("OMX native instance null");
         }
         final int nextTex = _getNextTextureID(moviePtr, true);
         if(0 < nextTex) {
+            // FIXME set pts !
             /* FIXME 
             final TextureSequence.TextureFrame eglImgTex = 
                     texFrameMap.get(new Integer(_getNextTextureID(moviePtr, blocking)));
@@ -177,7 +178,7 @@ public class OMXGLMediaPlayer extends EGLMediaPlayerImpl {
                 lastTex = eglImgTex;
             } */
         }
-        return true;
+        return 0; // FIXME: return pts
     }
     
     private String replaceAll(String orig, String search, String repl) {
diff --git a/src/jogl/native/libav/ffmpeg_tool.h b/src/jogl/native/libav/ffmpeg_tool.h
index 76de406ae..013cc0cf2 100644
--- a/src/jogl/native/libav/ffmpeg_tool.h
+++ b/src/jogl/native/libav/ffmpeg_tool.h
@@ -73,10 +73,10 @@ typedef void (APIENTRYP PFNGLFINISH) (void);
 /** Default number of audio frames per video frame. Sync w/ FFMPEGMediaPlayer.AV_DEFAULT_AFRAMES. */
 #define AV_DEFAULT_AFRAMES 8
 
-/** Constant PTS marking an invalid PTS, i.e. Integer.MIN_VALUE == 0x80000000 == {@value}. Sync w/ TextureFrame.INVALID_PTS */
+/** Constant PTS marking an invalid PTS, i.e. Integer.MIN_VALUE == 0x80000000 == {@value}. Sync w/ TimeFrameI.INVALID_PTS */
 #define INVALID_PTS 0x80000000
 
-/** Constant PTS marking the end of the stream, i.e. Integer.MIN_VALUE - 1 == 0x7FFFFFFF == {@value}. Sync w/ TextureFrame.END_OF_STREAM_PTS */
+/** Constant PTS marking the end of the stream, i.e. Integer.MIN_VALUE - 1 == 0x7FFFFFFF == {@value}. Sync w/ TimeFrameI.END_OF_STREAM_PTS */
 #define END_OF_STREAM_PTS 0x7FFFFFFF
 
 /** Until 55.0.0 */
diff --git a/src/jogl/native/libav/jogamp_opengl_util_av_impl_FFMPEGMediaPlayer.c b/src/jogl/native/libav/jogamp_opengl_util_av_impl_FFMPEGMediaPlayer.c
index 99ef02da5..63164e547 100644
--- a/src/jogl/native/libav/jogamp_opengl_util_av_impl_FFMPEGMediaPlayer.c
+++ b/src/jogl/native/libav/jogamp_opengl_util_av_impl_FFMPEGMediaPlayer.c
@@ -234,6 +234,12 @@ static void _updateJavaAttributes(JNIEnv *env, jobject instance, FFMPEGToolBasic
             w = 0;                      h = 0;
         }
 
+        (*env)->CallVoidMethod(env, instance, jni_mid_updateAttributes2,
+                               pAV->vPixFmt, pAV->vBufferPlanes, 
+                               pAV->vBitsPerPixel, pAV->vBytesPerPixelPerPlane,
+                               pAV->vLinesize[0], pAV->vLinesize[1], pAV->vLinesize[2],
+                               pAV->vTexWidth[0], pAV->vTexWidth[1], pAV->vTexWidth[2], h,
+                               pAV->aFramesPerVideoFrame, pAV->aSampleFmt, pAV->aSampleRate, pAV->aChannels);
         (*env)->CallVoidMethod(env, instance, jni_mid_updateAttributes1,
                                pAV->vid, pAV->aid,
                                w, h, 
@@ -241,12 +247,6 @@ static void _updateJavaAttributes(JNIEnv *env, jobject instance, FFMPEGToolBasic
                                pAV->fps, pAV->frames_video, pAV->frames_audio, pAV->duration,
                                (*env)->NewStringUTF(env, pAV->vcodec),
                                (*env)->NewStringUTF(env, pAV->acodec) );
-        (*env)->CallVoidMethod(env, instance, jni_mid_updateAttributes2,
-                               pAV->vPixFmt, pAV->vBufferPlanes, 
-                               pAV->vBitsPerPixel, pAV->vBytesPerPixelPerPlane,
-                               pAV->vLinesize[0], pAV->vLinesize[1], pAV->vLinesize[2],
-                               pAV->vTexWidth[0], pAV->vTexWidth[1], pAV->vTexWidth[2],
-                               pAV->aFramesPerVideoFrame, pAV->aSampleFmt, pAV->aSampleRate, pAV->aChannels);
     }
 }
 
@@ -392,7 +392,7 @@ JNIEXPORT jboolean JNICALL Java_jogamp_opengl_util_av_impl_FFMPEGMediaPlayer_ini
 
     jni_mid_pushSound = (*env)->GetMethodID(env, ffmpegMediaPlayerClazz, "pushSound", "(Ljava/nio/ByteBuffer;II)V");
     jni_mid_updateAttributes1 = (*env)->GetMethodID(env, ffmpegMediaPlayerClazz, "updateAttributes", "(IIIIIIIFIIILjava/lang/String;Ljava/lang/String;)V");
-    jni_mid_updateAttributes2 = (*env)->GetMethodID(env, ffmpegMediaPlayerClazz, "updateAttributes2", "(IIIIIIIIIIIIII)V");
+    jni_mid_updateAttributes2 = (*env)->GetMethodID(env, ffmpegMediaPlayerClazz, "updateAttributes2", "(IIIIIIIIIIIIIII)V");
 
     if(jni_mid_pushSound == NULL ||
        jni_mid_updateAttributes1 == NULL ||
@@ -858,9 +858,10 @@ JNIEXPORT jint JNICALL Java_jogamp_opengl_util_av_impl_FFMPEGMediaPlayer_readNex
     if( AVERROR_EOF == avRes || ( pAV->pFormatCtx->pb && pAV->pFormatCtx->pb->eof_reached ) ) {
         resPTS = END_OF_STREAM_PTS;
     } else if( 0 <= avRes ) {
+        /**
         if( pAV->verbose ) {
             fprintf(stderr, "P: ptr %p, size %d\n", packet.data, packet.size);
-        }
+        } */
         if(packet.stream_index==pAV->aid) {
             // Decode audio frame
             if(NULL == pAV->pAFrames) { // no audio registered
@@ -1206,38 +1207,43 @@ JNIEXPORT jint JNICALL Java_jogamp_opengl_util_av_impl_FFMPEGMediaPlayer_seek0
 {
     const FFMPEGToolBasicAV_t *pAV = (FFMPEGToolBasicAV_t *)((void *)((intptr_t)ptr));
     const int64_t pos0 = pAV->vPTS;
-    const int64_t pts0 = pAV->pVFrame->pkt_pts;
+    int64_t pts0;
     int streamID;
     AVRational time_base;
     if( pAV->vid >= 0 ) {
         streamID = pAV->vid;
         time_base = pAV->pVStream->time_base;
+        pts0 = pAV->pVFrame->pkt_pts;
     } else if( pAV->aid >= 0 ) {
         streamID = pAV->aid;
         time_base = pAV->pAStream->time_base;
+        pts0 = pAV->pAFrames[pAV->aFrameCurrent]->pkt_pts;
     } else {
         return pAV->vPTS;
     }
     int64_t pts1 = (int64_t) (pos1 * (int64_t) time_base.den)
                            / (1000 * (int64_t) time_base.num);
+    if(pAV->verbose) {
+        fprintf(stderr, "SEEK: vid %d, aid %d, pos1 %d, pts: %ld -> %ld\n", pAV->vid, pAV->aid, pos1, pts0, pts1);
+    }
     int flags = 0;
     if(pos1 < pos0) {
         flags |= AVSEEK_FLAG_BACKWARD;
     }
     int res;
     if(HAS_FUNC(sp_av_seek_frame)) {
-        if(pos1 < pos0) {
-            flags |= AVSEEK_FLAG_BACKWARD;
+        if(pAV->verbose) {
+            fprintf(stderr, "SEEK.0: pre  : s %ld / %ld -> t %d / %ld\n", pos0, pts0, pos1, pts1);
         }
-        fprintf(stderr, "SEEK.0: pre  : s %ld / %ld -> t %ld / %ld\n", pos0, pts0, pos1, pts1);
         sp_av_seek_frame(pAV->pFormatCtx, streamID, pts1, flags);
-
     } else if(HAS_FUNC(sp_avformat_seek_file)) {
         int64_t ptsD = pts1 - pts0;
         int64_t seek_min    = ptsD > 0 ? pts1 - ptsD : INT64_MIN;
         int64_t seek_max    = ptsD < 0 ? pts1 - ptsD : INT64_MAX;
-        fprintf(stderr, "SEEK.1: pre  : s %ld / %ld -> t %ld / %ld [%ld .. %ld]\n", 
-            pos0, pts0, pos1, pts1, seek_min, seek_max);
+        if(pAV->verbose) {
+            fprintf(stderr, "SEEK.1: pre  : s %ld / %ld -> t %d / %ld [%ld .. %ld]\n", 
+                pos0, pts0, pos1, pts1, seek_min, seek_max);
+        }
         res = sp_avformat_seek_file(pAV->pFormatCtx, -1, seek_min, pts1, seek_max, flags);
     }
     if(NULL != pAV->pVCodecCtx) {
@@ -1246,9 +1252,11 @@ JNIEXPORT jint JNICALL Java_jogamp_opengl_util_av_impl_FFMPEGMediaPlayer_seek0
     if(NULL != pAV->pACodecCtx) {
         sp_avcodec_flush_buffers( pAV->pACodecCtx );
     }
-    const jint vPTS =  my_av_q2i32( pAV->pVFrame->pkt_pts * 1000, pAV->pVStream->time_base);
-    fprintf(stderr, "SEEK: post : res %d, u %ld, p %ld\n", res, vPTS, pAV->pVFrame->pkt_pts);
-    return vPTS;
+    const jint rPTS =  my_av_q2i32( ( pAV->vid >= 0 ? pAV->pVFrame->pkt_pts : pAV->pAFrames[pAV->aFrameCurrent]->pkt_pts ) * 1000, time_base);
+    if(pAV->verbose) {
+        fprintf(stderr, "SEEK: post : res %d, u %ld\n", res, rPTS);
+    }
+    return rPTS;
 }
 
 JNIEXPORT jint JNICALL Java_jogamp_opengl_util_av_impl_FFMPEGMediaPlayer_getVideoPTS0