Bug 918 (2/2): Determine StreamWorker usage after stream-init ; Fix seek(..) ; Fallback for EOS Detection ; MovieSimple uses full GLEventListener for 'Audio Only' as well to test seek

Determine StreamWorker usage after init
  - To support audio only files, we need to determine to use StreamWorker
	after completion of stream-init.

Fix seek(..)
  - FFMPeg: pos0 needs to use aPTS for audio-only
  - Clip target time [0..duration[

Fallback for EOS Detection
  In case the backend does not report proper EOS:

  - Utilize 'nullFramesCount >= MAX' -> EOS,
    where MAX is number of frames for 3s play duraction
    and where 'nullFramesCount' is increased if no valid packet is available
    and no decoded-video or -audio in the queue.

  - Utilize pts > duration -> EOS

MovieSimple uses full GLEventListener for 'Audio Only' as well to test seek
  - Matroska seek for audio-only leads to EOS ..
    http://video.webmfiles.org/big-buck-bunny_trailer.webm

  - MP4 audio-only seek works
    http://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4

MovieSimple/MovieCube:
  - Use audio-pts in audio-only to calc target time

Tested:
  - A, V and A+V
  - Pause, Stop and Seek
  - GNU/Linux

1 files changed, 4 insertions, 1 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 b0a645cbb..22a5cfb32 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/av/GLMediaPlayer.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/av/GLMediaPlayer.java
@@ -358,7 +358,10 @@ public interface GLMediaPlayer extends TextureSequence {
     public void initStream(URI streamLoc, int vid, int aid, int textureCount) throws IllegalStateException, IllegalArgumentException;
 
     /**
-     * Returns the {@link StreamException} caught in the decoder thread, or <code>null</code>.
+     * Returns the {@link StreamException} caught in the decoder thread, or <code>null</code> if none occured.
+     * <p>
+     * Method clears the cached {@link StreamException}, hence an immediate subsequent call will return <code>null</code>.
+     * </p>
      * @see GLMediaEventListener#EVENT_CHANGE_ERR
      * @see StreamException
      */