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Java™ Binding for the OpenGL® API
/**
* Copyright 2012 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.opengl.util.av;
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Map;
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 jogamp.opengl.Debug;
import com.jogamp.common.net.URIQueryProps;
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.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:
*
* - {@link #setDesTextureCount(int)}
* - {@link #setTextureTarget(int)}
* - {@link EGLMediaPlayerImpl#setEGLTexImageAttribs(boolean, boolean)}.
*
*
*
* See {@link GLMediaPlayer}.
*
*/
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";
protected volatile State state;
private final Object stateLock = new Object();
protected int textureCount;
protected int textureTarget;
protected int textureFormat;
protected int textureInternalFormat;
protected int textureType;
protected int texUnit;
protected int[] texMinMagFilter = { GL.GL_NEAREST, GL.GL_NEAREST };
protected int[] texWrapST = { GL.GL_CLAMP_TO_EDGE, GL.GL_CLAMP_TO_EDGE };
/** User requested URI stream location. */
protected URI streamLoc = null;
/**
* In case {@link #streamLoc} is a {@link GLMediaPlayer#CameraInputScheme},
* {@link #cameraPath} holds the URI's path portion
* as parsed in {@link #initStream(URI, int, int, int)}.
* @see #cameraProps
*/
protected String cameraPath = null;
/** Optional camera properties, see {@link #cameraPath}. */
protected Map cameraProps = null;
protected volatile float playSpeed = 1.0f;
protected float audioVolume = 1.0f;
/** Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int vid = GLMediaPlayer.STREAM_ID_AUTO;
/** Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int aid = GLMediaPlayer.STREAM_ID_AUTO;
/** Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int width = 0;
/** Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int height = 0;
/** Video avg. fps. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected float fps = 0;
/** Video avg. frame duration in ms. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected float frame_duration = 0f;
/** Stream bps. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int bps_stream = 0;
/** Video bps. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int bps_video = 0;
/** Audio bps. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int bps_audio = 0;
/** In frames. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int videoFrames = 0;
/** In frames. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int audioFrames = 0;
/** In ms. Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected int duration = 0;
/** Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected String acodec = unknown;
/** Shall be set by the {@link #initStreamImpl(int, int)} method implementation. */
protected String vcodec = unknown;
protected volatile int decodedFrameCount = 0;
protected int presentedFrameCount = 0;
protected int displayedFrameCount = 0;
protected volatile int video_pts_last = 0;
/** See {@link #getAudioSink()}. Set by implementation if used from within {@link #initStreamImpl(int, int)}! */
protected AudioSink audioSink = null;
protected boolean audioSinkPlaySpeedSet = false;
/** System Clock Reference (SCR) of first audio PTS at start time. */
private long audio_scr_t0 = 0;
private boolean audioSCR_reset = true;
/** System Clock Reference (SCR) of first video frame at start time. */
private long video_scr_t0 = 0;
/** System Clock Reference (SCR) PTS offset, i.e. first video PTS at start time. */
private int video_scr_pts = 0;
/** Cumulative video pts diff. */
private float video_dpts_cum = 0;
/** Cumulative video frames. */
private int video_dpts_count = 0;
/** Number of min frame count required for video cumulative sync. */
private static final int VIDEO_DPTS_NUM = 20;
/** Cumulative coefficient, value {@value}. */
private static final float VIDEO_DPTS_COEFF = 0.7943282f; // (float) Math.exp(Math.log(0.01) / VIDEO_DPTS_NUM);
/** Maximum valid video pts diff. */
private static final int VIDEO_DPTS_MAX = 5000; // 5s max diff
/** Trigger video PTS reset with given cause as bitfield. */
private boolean videoSCR_reset = false;
protected TextureFrame[] videoFramesOrig = null;
protected Ringbuffer videoFramesFree = null;
protected Ringbuffer videoFramesDecoded = null;
protected volatile TextureFrame lastFrame = null;
/**
* @see #isGLOriented()
*/
protected boolean isInGLOrientation = false;
private final ArrayList eventListeners = new ArrayList();
protected GLMediaPlayerImpl() {
this.textureCount=0;
this.textureTarget=GL.GL_TEXTURE_2D;
this.textureFormat = GL.GL_RGBA;
this.textureInternalFormat = GL.GL_RGBA;
this.textureType = GL.GL_UNSIGNED_BYTE;
this.texUnit = 0;
this.state = State.Uninitialized;
}
@Override
public final void setTextureUnit(int u) { texUnit = u; }
@Override
public final int getTextureUnit() { return texUnit; }
@Override
public final int getTextureTarget() { return textureTarget; }
@Override
public final int getTextureCount() { return textureCount; }
protected final void setTextureTarget(int target) { textureTarget=target; }
protected final void setTextureFormat(int internalFormat, int format) {
textureInternalFormat=internalFormat;
textureFormat=format;
}
protected final void setTextureType(int t) { textureType=t; }
@Override
public final void setTextureMinMagFilter(int[] minMagFilter) { texMinMagFilter[0] = minMagFilter[0]; texMinMagFilter[1] = minMagFilter[1];}
@Override
public final int[] getTextureMinMagFilter() { return texMinMagFilter; }
@Override
public final void setTextureWrapST(int[] wrapST) { texWrapST[0] = wrapST[0]; texWrapST[1] = wrapST[1];}
@Override
public final int[] getTextureWrapST() { return texWrapST; }
private final void checkGLInit() {
if(State.Uninitialized == state || State.Initialized == state ) {
throw new IllegalStateException("GL not initialized: "+this);
}
}
@Override
public String getRequiredExtensionsShaderStub() throws IllegalStateException {
checkGLInit();
if(GLES2.GL_TEXTURE_EXTERNAL_OES == textureTarget) {
return TextureSequence.GL_OES_EGL_image_external_Required_Prelude;
}
return "";
}
@Override
public String getTextureSampler2DType() throws IllegalStateException {
checkGLInit();
switch(textureTarget) {
case GL.GL_TEXTURE_2D:
case GL2.GL_TEXTURE_RECTANGLE:
return TextureSequence.sampler2D;
case GLES2.GL_TEXTURE_EXTERNAL_OES:
return TextureSequence.samplerExternalOES;
default:
throw new GLException("Unsuported texture target: "+toHexString(textureTarget));
}
}
/**
* {@inheritDoc}
*
* This implementation simply returns the build-in function name of texture2D,
* if not overridden by specialization.
*/
@Override
public String getTextureLookupFunctionName(String desiredFuncName) throws IllegalStateException {
checkGLInit();
return "texture2D";
}
/**
* {@inheritDoc}
*
* This implementation simply returns an empty string since it's using
* the build-in function texture2D,
* if not overridden by specialization.
*/
@Override
public String getTextureLookupFragmentShaderImpl() throws IllegalStateException {
checkGLInit();
return "";
}
@Override
public final int getDecodedFrameCount() { return decodedFrameCount; }
@Override
public final int getPresentedFrameCount() { return presentedFrameCount; }
@Override
public final int getVideoPTS() { return video_pts_last; }
@Override
public final int getAudioPTS() {
if( State.Uninitialized != state ) {
return getAudioPTSImpl();
}
return 0;
}
/** Override if not using audioSink! */
protected int getAudioPTSImpl() {
if( null != audioSink ) {
return audioSink.getPTS();
} else {
return 0;
}
}
@Override
public final State getState() { return state; }
@Override
public final State play() {
synchronized( stateLock ) {
final State preState = state;
switch( state ) {
case Paused:
if( playImpl() ) {
resetAVPTS();
if( null != audioSink ) {
audioSink.play(); // cont. w/ new data
}
if( null != streamWorker ) {
streamWorker.doResume();
}
changeState(0, State.Playing);
}
default:
}
if(DEBUG) { System.err.println("Play: "+preState+" -> "+state+", "+toString()); }
return state;
}
}
protected abstract boolean playImpl();
@Override
public final State pause(boolean flush) {
return pauseImpl(flush, 0);
}
private final State pauseImpl(boolean flush, int event_mask) {
synchronized( stateLock ) {
final State preState = state;
if( State.Playing == state ) {
event_mask = addStateEventMask(event_mask, GLMediaPlayer.State.Paused);
state = State.Paused;
if( null != streamWorker ) {
streamWorker.doPause();
}
if( flush ) {
resetAVPTSAndFlush();
} else if( null != audioSink ) {
audioSink.pause();
}
attributesUpdated( event_mask );
if( !pauseImpl() ) {
play();
}
}
if(DEBUG) { System.err.println("Pause: "+preState+" -> "+state+", "+toString()); }
return state;
}
}
protected abstract boolean pauseImpl();
@Override
public final State destroy(GL gl) {
return destroyImpl(gl, 0);
}
private final State destroyImpl(GL gl, int event_mask) {
synchronized( stateLock ) {
if( null != streamWorker ) {
streamWorker.doStop();
streamWorker = null;
}
destroyImpl(gl);
removeAllTextureFrames(gl);
textureCount=0;
changeState(event_mask, State.Uninitialized);
return state;
}
}
protected abstract void destroyImpl(GL gl);
@Override
public final int seek(int msec) {
synchronized( stateLock ) {
final State preState = state;
final int pts1;
switch(state) {
case Playing:
case Paused:
final State _state = state;
state = State.Paused;
if( null != streamWorker ) {
streamWorker.doPause();
}
pts1 = seekImpl(msec);
resetAVPTSAndFlush();
if( null != audioSink && State.Playing == _state ) {
audioSink.play(); // cont. w/ new data
}
System.err.println("SEEK XXX: "+getPerfString());
if( null != streamWorker ) {
streamWorker.doResume();
}
state = _state;
break;
default:
pts1 = 0;
}
if(DEBUG) { System.err.println("Seek("+msec+"): "+preState+" -> "+state+", "+toString()); }
return pts1;
}
}
protected abstract int seekImpl(int msec);
@Override
public final float getPlaySpeed() {
return playSpeed;
}
@Override
public final boolean setPlaySpeed(float rate) {
synchronized( stateLock ) {
final float preSpeed = playSpeed;
boolean res = false;
if(State.Uninitialized != state ) {
if( rate > 0.01f ) {
if( Math.abs(1.0f - rate) < 0.01f ) {
rate = 1.0f;
}
if( setPlaySpeedImpl(rate) ) {
resetAVPTS();
playSpeed = rate;
res = true;
}
}
}
if(DEBUG) { System.err.println("setPlaySpeed("+rate+"): "+state+", "+preSpeed+" -> "+playSpeed+", "+toString()); }
return res;
}
}
/**
* Override if not using AudioSink, or AudioSink's {@link AudioSink#setPlaySpeed(float)} is not sufficient!
*
* AudioSink shall respect !audioSinkPlaySpeedSet to determine data_size
* at {@link AudioSink#enqueueData(com.jogamp.opengl.util.av.AudioSink.AudioFrame)}.
*
*/
protected boolean setPlaySpeedImpl(float rate) {
if( null != audioSink ) {
audioSinkPlaySpeedSet = audioSink.setPlaySpeed(rate);
}
// still true, even if audioSink rejects command since we deal w/ video sync
// and AudioSink w/ audioSinkPlaySpeedSet at enqueueData(..).
return true;
}
@Override
public final float getAudioVolume() {
getAudioVolumeImpl();
return audioVolume;
}
/**
* Override if not using AudioSink, or AudioSink's {@link AudioSink#getVolume()} is not sufficient!
*/
protected void getAudioVolumeImpl() {
if( null != audioSink ) {
audioVolume = audioSink.getVolume();
}
}
@Override
public boolean setAudioVolume(float v) {
synchronized( stateLock ) {
final float preVolume = audioVolume;
boolean res = false;
if(State.Uninitialized != state ) {
if( Math.abs(v) < 0.01f ) {
v = 0.0f;
} else if( Math.abs(1.0f - v) < 0.01f ) {
v = 1.0f;
}
if( setAudioVolumeImpl(v) ) {
audioVolume = v;
res = true;
}
}
if(DEBUG) { System.err.println("setAudioVolume("+v+"): "+state+", "+preVolume+" -> "+audioVolume+", "+toString()); }
return res;
}
}
/**
* Override if not using AudioSink, or AudioSink's {@link AudioSink#setVolume(float)} is not sufficient!
*/
protected boolean setAudioVolumeImpl(float v) {
if( null != audioSink ) {
return audioSink.setVolume(v);
}
// still true, even if audioSink rejects command ..
return true;
}
@Override
public final void initStream(URI streamLoc, final int vid, final int aid, int reqTextureCount) throws IllegalStateException, IllegalArgumentException {
synchronized( stateLock ) {
if(State.Uninitialized != state) {
throw new IllegalStateException("Instance not in state unintialized: "+this);
}
if(null == streamLoc) {
throw new IllegalArgumentException("streamLock is null");
}
if( STREAM_ID_NONE != vid ) {
textureCount = validateTextureCount(reqTextureCount);
if( textureCount < TEXTURE_COUNT_MIN ) {
throw new InternalError("Validated texture count < "+TEXTURE_COUNT_MIN+": "+textureCount);
}
} else {
textureCount = 0;
}
decodedFrameCount = 0;
presentedFrameCount = 0;
displayedFrameCount = 0;
this.streamLoc = streamLoc;
// Pre-parse for camera-input scheme
cameraPath = null;
cameraProps = null;
final String streamLocScheme = streamLoc.getScheme();
if( null != streamLocScheme && streamLocScheme.equals(CameraInputScheme) ) {
final String rawPath = streamLoc.getRawPath();
if( null != rawPath && rawPath.length() > 0 ) {
// cut-off root fwd-slash
cameraPath = rawPath.substring(1);
final URIQueryProps props = URIQueryProps.create(streamLoc, ';');
cameraProps = props.getProperties();
} else {
throw new IllegalArgumentException("Camera path is empty: "+streamLoc.toString());
}
}
this.vid = vid;
this.aid = aid;
if ( this.streamLoc != null ) {
if( TEXTURE_COUNT_MIN < textureCount ) {
streamWorker = new StreamWorker();
} else {
new Thread() {
public void run() {
try {
initStreamImpl(vid, aid);
} catch (Throwable t) {
streamErr = new StreamException(t.getClass().getSimpleName()+" while initializing: "+GLMediaPlayerImpl.this.toString(), t);
changeState(GLMediaEventListener.EVENT_CHANGE_ERR, GLMediaPlayer.State.Uninitialized);
} // also initializes width, height, .. etc
}
}.start();
}
}
}
}
/**
* Implementation shall set the following set of data here
* @see #vid
* @see #aid
* @see #width
* @see #height
* @see #fps
* @see #bps_stream
* @see #videoFrames
* @see #audioFrames
* @see #acodec
* @see #vcodec
*/
protected abstract void initStreamImpl(int vid, int aid) throws Exception;
@Override
public final StreamException getStreamException() {
final StreamException e;
synchronized( stateLock ) {
e = streamErr;
streamErr = null;
}
return e;
}
@Override
public final void initGL(GL gl) throws IllegalStateException, StreamException, GLException {
synchronized( stateLock ) {
if(State.Initialized != state ) {
throw new IllegalStateException("Stream not in state initialized: "+this);
}
if( null != streamWorker ) {
final StreamException streamInitErr = getStreamException();
if( null != streamInitErr ) {
streamWorker = null; // already terminated!
destroy(null);
throw streamInitErr;
}
}
try {
if( STREAM_ID_NONE != vid ) {
removeAllTextureFrames(gl);
initGLImpl(gl);
if(DEBUG) {
System.err.println("initGLImpl.X "+this);
}
videoFramesOrig = createTexFrames(gl, textureCount);
if( TEXTURE_COUNT_MIN == textureCount ) {
videoFramesFree = null;
videoFramesDecoded = null;
lastFrame = videoFramesOrig[0];
} else {
videoFramesFree = new LFRingbuffer(videoFramesOrig);
videoFramesDecoded = new LFRingbuffer(TextureFrame[].class, textureCount);
lastFrame = videoFramesFree.getBlocking( );
}
if( null != streamWorker ) {
streamWorker.initGL(gl);
}
} else {
removeAllTextureFrames(null);
initGLImpl(null);
setTextureFormat(-1, -1);
setTextureType(-1);
videoFramesOrig = null;
videoFramesFree = null;
videoFramesDecoded = null;
lastFrame = null;
}
changeState(0, State.Paused);
} catch (Throwable t) {
destroyImpl(gl, GLMediaEventListener.EVENT_CHANGE_ERR); // -> GLMediaPlayer.State.Uninitialized
throw new GLException("Error initializing GL resources", t);
}
}
}
/**
* Shall initialize all GL related resources, if not audio-only.
*
* Shall also take care of {@link AudioSink} initialization if appropriate.
*
* @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;
/**
* Returns the validated number of textures to be handled.
*
* Default is {@link #TEXTURE_COUNT_DEFAULT} minimum textures, if desiredTextureCount
* is < {@link #TEXTURE_COUNT_MIN}, {@link #TEXTURE_COUNT_MIN} is returned.
*
*
* Implementation must at least return a texture count of {@link #TEXTURE_COUNT_MIN}, two, the last texture and the decoding texture.
*
*/
protected int validateTextureCount(int desiredTextureCount) {
return desiredTextureCount < TEXTURE_COUNT_MIN ? TEXTURE_COUNT_MIN : desiredTextureCount;
}
protected 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 texName ) {
throw new RuntimeException("TextureName "+toHexString(texName)+" invalid.");
}
gl.glActiveTexture(GL.GL_TEXTURE0+getTextureUnit());
gl.glBindTexture(textureTarget, texName);
{
final int err = gl.glGetError();
if( GL.GL_NO_ERROR != err ) {
throw new RuntimeException("Couldn't bind textureName "+toHexString(texName)+" to 2D target, err "+toHexString(err));
}
}
if(GLES2.GL_TEXTURE_EXTERNAL_OES != textureTarget) {
// create space for buffer with a texture
gl.glTexImage2D(
textureTarget, // target
0, // level
textureInternalFormat, // internal format
tWidth, // width
tHeight, // height
0, // border
textureFormat,
textureType,
null); // pixels -- will be provided later
{
final int err = gl.glGetError();
if( GL.GL_NO_ERROR != err ) {
throw new RuntimeException("Couldn't create TexImage2D RGBA "+tWidth+"x"+tHeight+", target "+toHexString(textureTarget)+
", ifmt "+toHexString(textureInternalFormat)+", fmt "+toHexString(textureFormat)+", type "+toHexString(textureType)+
", err "+toHexString(err));
}
}
if(DEBUG) {
System.err.println("Created TexImage2D RGBA "+tWidth+"x"+tHeight+", target "+toHexString(textureTarget)+
", ifmt "+toHexString(textureInternalFormat)+", fmt "+toHexString(textureFormat)+", type "+toHexString(textureType));
}
}
gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MIN_FILTER, texMinMagFilter[0]);
gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MAG_FILTER, texMinMagFilter[1]);
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(
texName, textureTarget,
tWidth, tHeight,
width, height,
!isInGLOrientation);
}
protected void destroyTexFrame(GL gl, TextureFrame frame) {
frame.getTexture().destroy(gl);
}
@Override
public final TextureFrame getLastTexture() throws IllegalStateException {
if( State.Paused != state && State.Playing != state ) {
throw new IllegalStateException("Instance not paused or playing: "+this);
}
return lastFrame;
}
private final void removeAllTextureFrames(GL gl) {
final TextureFrame[] texFrames = videoFramesOrig;
videoFramesOrig = null;
videoFramesFree = null;
videoFramesDecoded = null;
lastFrame = null;
if( null != texFrames ) {
for(int i=0; i Clear TexFrame["+i+"]: "+frame+" -> null");
}
}
}
protected TextureFrame cachedFrame = null;
protected long lastTimeMillis = 0;
@Override
public final TextureFrame getNextTexture(GL gl) throws IllegalStateException {
synchronized( stateLock ) {
if( State.Paused != state && State.Playing != state ) {
throw new IllegalStateException("Instance not paused or playing: "+this);
}
if(State.Playing == state) {
TextureFrame nextFrame = null;
boolean dropFrame = false;
try {
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 ) {
if( null != videoFramesDecoded ) { // single threaded ? TEXTURE_COUNT_MIN == textureCount
nextFrame = videoFramesDecoded.get();
} else {
nextFrame = getNextSingleThreaded(gl, lastFrame);
}
}
currentTimeMillis = Platform.currentTimeMillis();
if( null != nextFrame ) {
presentedFrameCount++;
final int video_pts = nextFrame.getPTS();
if( video_pts == TimeFrameI.END_OF_STREAM_PTS ) {
pauseImpl(true, GLMediaEventListener.EVENT_CHANGE_EOS);
} 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 != TimeFrameI.INVALID_PTS ) {
d_apts = audio_pts - audio_scr;
} else {
d_apts = 0;
}
final int frame_period_last = video_pts - video_pts_last; // rendering loop interrupted ?
if( videoSCR_reset || frame_period_last > frame_duration*10 ) {
videoSCR_reset = false;
video_scr_t0 = currentTimeMillis;
video_scr_pts = video_pts;
}
final int video_scr = video_scr_pts + (int) ( ( currentTimeMillis - video_scr_t0 ) * playSpeed );
final int d_vpts = video_pts - video_scr;
// final int d_avpts = d_vpts - d_apts;
if( -VIDEO_DPTS_MAX > d_vpts || d_vpts > VIDEO_DPTS_MAX ) {
// if( -VIDEO_DPTS_MAX > d_avpts || d_avpts > VIDEO_DPTS_MAX ) {
if( DEBUG ) {
System.err.println( "AV*: dT "+(currentTimeMillis-lastTimeMillis)+", "+
getPerfStringImpl( video_scr, video_pts, d_vpts, audio_scr, audio_pts, d_apts, 0 ) + ", "+nextFrame+", playCached " + playCached+ ", dropFrame "+dropFrame);
}
} else {
final int dpy_den = displayedFrameCount > 0 ? displayedFrameCount : 1;
final int avg_dpy_duration = ( (int) ( currentTimeMillis - video_scr_t0 ) ) / dpy_den ; // ms/f
final int maxVideoDelay = Math.min(avg_dpy_duration, MAXIMUM_VIDEO_ASYNC);
video_dpts_count++;
// video_dpts_cum = d_avpts + VIDEO_DPTS_COEFF * video_dpts_cum;
video_dpts_cum = d_vpts + VIDEO_DPTS_COEFF * video_dpts_cum;
final int video_dpts_avg_diff = video_dpts_count >= VIDEO_DPTS_NUM ? getVideoDPTSAvg() : 0;
final int dt = (int) ( video_dpts_avg_diff / playSpeed + 0.5f );
// final int dt = (int) ( d_vpts / playSpeed + 0.5f );
// final int dt = (int) ( d_avpts / playSpeed + 0.5f );
final TextureFrame _nextFrame = nextFrame;
if( dt > maxVideoDelay ) {
cachedFrame = nextFrame;
nextFrame = null;
} else if ( !droppedFrame && dt < -maxVideoDelay && null != videoFramesDecoded && 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;
if( DEBUG ) {
System.err.println( "AV_: dT "+(currentTimeMillis-lastTimeMillis)+", "+
getPerfStringImpl( video_scr, video_pts, d_vpts,
audio_scr, audio_pts, d_apts,
video_dpts_avg_diff ) +
", avg dpy-fps "+avg_dpy_duration+" ms/f, maxD "+maxVideoDelay+" ms, "+_nextFrame+", playCached " + playCached + ", dropFrame "+dropFrame);
}
}
} else if( DEBUG ) {
System.err.println("Invalid PTS: "+nextFrame);
}
if( null != nextFrame && null != videoFramesFree ) {
// Had frame and not single threaded ? (TEXTURE_COUNT_MIN < textureCount)
final TextureFrame _lastFrame = lastFrame;
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 );
} catch (InterruptedException e) {
e.printStackTrace();
}
}
displayedFrameCount++;
return lastFrame;
}
}
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.
*
* Video frames shall be ignored, if {@link #getVID()} is {@link #STREAM_ID_NONE}.
*
*
* Audio frames shall be ignored, if {@link #getAID()} is {@link #STREAM_ID_NONE}.
*
*
* Method may be invoked on the StreamWorker decoding thread.
*
*
* Implementation shall care of OpenGL synchronization as required, e.g. glFinish()/glFlush()!
*
* @param gl valid and current GL instance, shall be null for audio only.
* @param nextFrame the {@link TextureFrame} to store the video PTS and texture data,
* shall be null 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 int getNextTextureImpl(GL gl, TextureFrame nextFrame);
protected final TextureFrame getNextSingleThreaded(final GL gl, final TextureFrame nextFrame) throws InterruptedException {
if( STREAM_ID_NONE != vid ) {
preNextTextureImpl(gl);
final int vPTS = getNextTextureImpl(gl, nextFrame);
postNextTextureImpl(gl);
if( TimeFrameI.INVALID_PTS != vPTS ) {
newFrameAvailable(nextFrame, Platform.currentTimeMillis());
return nextFrame;
}
} else {
// audio only
final int vPTS = getNextTextureImpl(null, null);
if( TimeFrameI.INVALID_PTS != vPTS && TimeFrameI.END_OF_STREAM_PTS == vPTS ) {
// state transition incl. notification
pauseImpl(true, GLMediaEventListener.EVENT_CHANGE_EOS);
}
}
return null;
}
/**
* {@inheritDoc}
*
* Note: All {@link AudioSink} operations are performed from {@link GLMediaPlayerImpl},
* i.e. {@link #play()}, {@link #pause(boolean)}, {@link #seek(int)}, {@link #setPlaySpeed(float)}, {@link #getAudioPTS()}.
*
*
* Implementations using an {@link AudioSink} shall write it's instance to {@link #audioSink}
* from within their {@link #initStreamImpl(int, int)} implementation.
*
*/
@Override
public final AudioSink getAudioSink() { return audioSink; }
/**
* To be called from implementation at 1st PTS after start
* w/ current pts value in milliseconds.
* @param audio_scr_t0
*/
protected void setFirstAudioPTS2SCR(int pts) {
if( audioSCR_reset ) {
audio_scr_t0 = Platform.currentTimeMillis() - pts;
audioSCR_reset = false;
}
}
private void flushAllVideoFrames() {
if( null != videoFramesFree ) {
videoFramesFree.resetFull(videoFramesOrig);
lastFrame = videoFramesFree.get();
if( null == lastFrame ) { throw new InternalError("XXX"); }
videoFramesDecoded.clear();
}
cachedFrame = null;
}
private void resetAVPTSAndFlush() {
video_dpts_cum = 0;
video_dpts_count = 0;
resetAVPTS();
flushAllVideoFrames();
if( null != audioSink ) {
audioSink.flush();
}
}
private void resetAVPTS() {
presentedFrameCount = 0;
displayedFrameCount = 0;
decodedFrameCount = 0;
audioSCR_reset = true;
videoSCR_reset = true;
}
private final int getVideoDPTSAvg() {
return (int) ( video_dpts_cum * (1.0f - VIDEO_DPTS_COEFF) + 0.5f );
}
private final void newFrameAvailable(TextureFrame frame, long currentTimeMillis) {
decodedFrameCount++;
if( 0 == frame.getDuration() ) { // patch frame duration if not set already
frame.setDuration( (int) frame_duration );
}
synchronized(eventListenersLock) {
for(Iterator i = eventListeners.iterator(); i.hasNext(); ) {
i.next().newFrameAvailable(this, frame, currentTimeMillis);
}
}
}
class StreamWorker extends Thread {
private volatile boolean isRunning = false;
private volatile boolean isActive = false;
private volatile boolean isBlocked = false;
private volatile boolean shallPause = true;
private volatile boolean shallStop = false;
private volatile GLContext sharedGLCtx = null;
private boolean sharedGLCtxCurrent = false;
private GLDrawable dummyDrawable = null;
/**
* Starts this daemon thread,
* which initializes the stream first via {@link GLMediaPlayerImpl#initStreamImpl(int, int)} first.
*
* After stream initialization, this thread pauses!
*
**/
StreamWorker() {
setDaemon(true);
start();
}
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 final synchronized void initGL(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, glCtx.getGLDrawable().getChosenGLCapabilities(), null); // own device!
dummyDrawable.setRealized(true);
sharedGLCtx = dummyDrawable.createContext(glCtx);
makeCurrent(sharedGLCtx);
if( glCtxCurrent ) {
makeCurrent(glCtx);
} else {
sharedGLCtx.release();
}
}
public final synchronized void doPause() {
if( isActive ) {
shallPause = true;
if( Thread.currentThread() != this ) {
if( isBlocked && isActive ) {
this.interrupt();
}
while( isActive ) {
try {
this.wait(); // wait until paused
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
public final synchronized void doResume() {
if( isRunning && !isActive ) {
shallPause = false;
if( Thread.currentThread() != this ) {
while( !isActive ) {
this.notify(); // wake-up pause-block
try {
this.wait(); // wait until resumed
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}
public final synchronized void doStop() {
if( isRunning ) {
shallStop = true;
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();
}
}
}
}
}
public final boolean isRunning() { return isRunning; }
public final boolean isActive() { return isActive; }
@Override
public final void run() {
setName(getName()+"-StreamWorker_"+StreamWorkerInstanceId);
StreamWorkerInstanceId++;
synchronized ( this ) {
isRunning = true;
try {
isBlocked = true;
initStreamImpl(vid, aid);
isBlocked = false;
} catch (Throwable t) {
streamErr = new StreamException(t.getClass().getSimpleName()+" while initializing: "+GLMediaPlayerImpl.this.toString(), t);
isBlocked = false;
isRunning = false;
changeState(GLMediaEventListener.EVENT_CHANGE_ERR, GLMediaPlayer.State.Uninitialized);
return; // end of thread!
} // also initializes width, height, .. etc
}
while( !shallStop ){
if( shallPause ) {
synchronized ( this ) {
if( sharedGLCtxCurrent ) {
postNextTextureImpl(sharedGLCtx.getGL());
sharedGLCtx.release();
}
while( shallPause && !shallStop ) {
isActive = false;
this.notify(); // wake-up doPause()
try {
this.wait(); // wait until resumed
} catch (InterruptedException e) {
if( !shallPause ) {
e.printStackTrace();
}
}
}
if( sharedGLCtxCurrent ) {
makeCurrent(sharedGLCtx);
preNextTextureImpl(sharedGLCtx.getGL());
}
isActive = true;
this.notify(); // wake-up doResume()
}
}
if( !sharedGLCtxCurrent && null != sharedGLCtx ) {
synchronized ( this ) {
if( null != sharedGLCtx ) {
makeCurrent( sharedGLCtx );
preNextTextureImpl(sharedGLCtx.getGL());
sharedGLCtxCurrent = true;
}
if( null == videoFramesFree ) {
throw new InternalError("XXX videoFramesFree is null");
}
}
}
if( !shallStop ) {
TextureFrame nextFrame = null;
try {
isBlocked = true;
final GL gl;
if( STREAM_ID_NONE != vid ) {
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;
} else {
// audio only
if( TimeFrameI.END_OF_STREAM_PTS == vPTS ) {
// state transition incl. notification
shallPause = true;
isActive = false;
pauseImpl(true, GLMediaEventListener.EVENT_CHANGE_EOS);
}
}
}
} 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(true, GLMediaEventListener.EVENT_CHANGE_ERR);
}
}
}
}
synchronized ( this ) {
if( sharedGLCtxCurrent ) {
postNextTextureImpl(sharedGLCtx.getGL());
}
destroySharedGL();
isRunning = false;
isActive = false;
this.notify(); // wake-up doStop()
}
}
}
static int StreamWorkerInstanceId = 0;
private StreamWorker streamWorker = null;
private volatile StreamException streamErr = null;
protected final int addStateEventMask(int event_mask, State newState) {
if( state != newState ) {
switch( newState ) {
case Uninitialized:
event_mask |= GLMediaEventListener.EVENT_CHANGE_UNINIT;
break;
case Initialized:
event_mask |= GLMediaEventListener.EVENT_CHANGE_INIT;
break;
case Playing:
event_mask |= GLMediaEventListener.EVENT_CHANGE_PLAY;
break;
case Paused:
event_mask |= GLMediaEventListener.EVENT_CHANGE_PAUSE;
break;
}
}
return event_mask;
}
protected final void attributesUpdated(int event_mask) {
if( 0 != event_mask ) {
final long now = Platform.currentTimeMillis();
synchronized(eventListenersLock) {
for(Iterator i = eventListeners.iterator(); i.hasNext(); ) {
i.next().attributesChanged(this, event_mask, now);
}
}
}
}
protected final void changeState(int event_mask, State newState) {
event_mask = addStateEventMask(event_mask, newState);
if( 0 != event_mask ) {
state = newState;
attributesUpdated( event_mask );
}
}
protected final void updateAttributes(int vid, int aid, int width, int height, int bps_stream,
int bps_video, int bps_audio, float fps,
int videoFrames, int audioFrames, int duration, String vcodec, String acodec) {
int event_mask = 0;
if( state == State.Uninitialized ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_INIT;
state = State.Initialized;
}
if( STREAM_ID_AUTO == vid ) {
vid = STREAM_ID_NONE;
}
if( this.vid != vid ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_VID;
this.vid = vid;
}
if( STREAM_ID_AUTO == vid ) {
vid = STREAM_ID_NONE;
}
if( this.aid != aid ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_AID;
this.aid = aid;
}
if( this.width != width || this.height != height ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_SIZE;
this.width = width;
this.height = height;
}
if( this.fps != fps ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_FPS;
this.fps = fps;
this.frame_duration = 1000f / fps;
}
if( this.bps_stream != bps_stream || this.bps_video != bps_video || this.bps_audio != bps_audio ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_BPS;
this.bps_stream = bps_stream;
this.bps_video = bps_video;
this.bps_audio = bps_audio;
}
if( this.videoFrames != videoFrames || this.audioFrames != audioFrames || this.duration != duration ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_LENGTH;
this.videoFrames = videoFrames;
this.audioFrames = audioFrames;
this.duration = duration;
}
if( (null!=acodec && acodec.length()>0 && !this.acodec.equals(acodec)) ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_CODEC;
this.acodec = acodec;
}
if( (null!=vcodec && vcodec.length()>0 && !this.vcodec.equals(vcodec)) ) {
event_mask |= GLMediaEventListener.EVENT_CHANGE_CODEC;
this.vcodec = vcodec;
}
if(0==event_mask) {
return;
}
attributesUpdated(event_mask);
}
protected void setIsGLOriented(boolean isGLOriented) {
if( isInGLOrientation != isGLOriented ) {
if( DEBUG ) {
System.err.println("XXX gl-orient "+isInGLOrientation+" -> "+isGLOriented);
}
isInGLOrientation = isGLOriented;
for(int i=0; i" ;
final int freeVideoFrames = null != videoFramesFree ? videoFramesFree.size() : 0;
final int decVideoFrames = null != videoFramesDecoded ? videoFramesDecoded.size() : 0;
final int video_scr = video_scr_pts + (int) ( ( Platform.currentTimeMillis() - video_scr_t0 ) * playSpeed );
final String camPath = null != cameraPath ? ", camera: "+cameraPath : "";
return "GLMediaPlayer["+state+", vSCR "+video_scr+", frames[p "+presentedFrameCount+", d "+decodedFrameCount+", t "+videoFrames+" ("+tt+" s)], "+
"speed "+playSpeed+", "+bps_stream+" bps, "+
"Texture[count "+textureCount+", free "+freeVideoFrames+", dec "+decVideoFrames+", tagt "+toHexString(textureTarget)+", ifmt "+toHexString(textureInternalFormat)+", fmt "+toHexString(textureFormat)+", type "+toHexString(textureType)+"], "+
"Video[id "+vid+", <"+vcodec+">, "+width+"x"+height+", glOrient "+isInGLOrientation+", "+fps+" fps, "+frame_duration+" fdur, "+bps_video+" bps], "+
"Audio[id "+aid+", <"+acodec+">, "+bps_audio+" bps, "+audioFrames+" frames], uri "+loc+camPath+"]";
}
@Override
public final String getPerfString() {
final long currentTimeMillis = Platform.currentTimeMillis();
final int video_scr = video_scr_pts + (int) ( ( currentTimeMillis - video_scr_t0 ) * playSpeed );
final int d_vpts = video_pts_last - video_scr;
final int audio_scr = (int) ( ( currentTimeMillis - audio_scr_t0 ) * playSpeed );
final int audio_pts = getAudioPTSImpl();
final int d_apts = audio_pts - audio_scr;
return getPerfStringImpl( video_scr, video_pts_last, d_vpts, audio_scr, audio_pts, d_apts, getVideoDPTSAvg() );
}
private final String getPerfStringImpl(final int video_scr, final int video_pts, final int d_vpts,
final int audio_scr, final int audio_pts, final int d_apts,
final int video_dpts_avg_diff) {
final float tt = getDuration() / 1000.0f;
final String audioSinkInfo;
final AudioSink audioSink = getAudioSink();
if( null != audioSink ) {
audioSinkInfo = "AudioSink[frames [p "+audioSink.getEnqueuedFrameCount()+", q "+audioSink.getQueuedFrameCount()+", f "+audioSink.getFreeFrameCount()+", c "+audioSink.getFrameCount()+"], time "+audioSink.getQueuedTime()+", bytes "+audioSink.getQueuedByteCount()+"]";
} else {
audioSinkInfo = "";
}
final int freeVideoFrames, decVideoFrames;
if( null != videoFramesFree ) {
freeVideoFrames = videoFramesFree.size();
decVideoFrames = videoFramesDecoded.size();
} else {
freeVideoFrames = 0;
decVideoFrames = 0;
}
return state+", frames[(p "+presentedFrameCount+", d "+decodedFrameCount+") / "+videoFrames+", "+tt+" s], "+
"speed " + playSpeed+", dAV "+( d_vpts - d_apts )+", vSCR "+video_scr+", vpts "+video_pts+", dSCR["+d_vpts+", avrg "+video_dpts_avg_diff+"], "+
"aSCR "+audio_scr+", apts "+audio_pts+" ( "+d_apts+" ), "+audioSinkInfo+
", Texture[count "+textureCount+", free "+freeVideoFrames+", dec "+decVideoFrames+"]";
}
@Override
public final void addEventListener(GLMediaEventListener l) {
if(l == null) {
return;
}
synchronized(eventListenersLock) {
eventListeners.add(l);
}
}
@Override
public final void removeEventListener(GLMediaEventListener l) {
if (l == null) {
return;
}
synchronized(eventListenersLock) {
eventListeners.remove(l);
}
}
@Override
public final GLMediaEventListener[] getEventListeners() {
synchronized(eventListenersLock) {
return eventListeners.toArray(new GLMediaEventListener[eventListeners.size()]);
}
}
private final Object eventListenersLock = new Object();
protected static final String toHexString(long v) {
return "0x"+Long.toHexString(v);
}
protected static final String toHexString(int v) {
return "0x"+Integer.toHexString(v);
}
protected static final int getPropIntVal(Map props, String key) {
final String val = props.get(key);
try {
return Integer.valueOf(val).intValue();
} catch (NumberFormatException nfe) {
if(DEBUG) {
System.err.println("Not a valid integer for <"+key+">: <"+val+">");
}
}
return 0;
}
}