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/**
* 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 com.jogamp.opengl.util.av;
import java.io.IOException;
import java.net.URLConnection;
import javax.media.opengl.GL;
import javax.media.opengl.GLException;
import jogamp.opengl.Debug;
import com.jogamp.opengl.util.texture.TextureSequence;
/**
* Lifecycle of an GLMediaPlayer:
* <table border="1">
* <tr><th>action</th> <th>state before</th> <th>state after</th></tr>
* <tr><td>{@link #initGLStream(GL, URLConnection)}</td> <td>Uninitialized</td> <td>Stopped</td></tr>
* <tr><td>{@link #start()}</td> <td>Stopped, Paused</td> <td>Playing</td></tr>
* <tr><td>{@link #stop()}</td> <td>Playing, Paused</td> <td>Stopped</td></tr>
* <tr><td>{@link #pause()}</td> <td>Playing</td> <td>Paused</td></tr>
* <tr><td>{@link #destroy(GL)}</td> <td>ANY</td> <td>Uninitialized</td></tr>
* </table>
* <p>
* Current implementations (check each API doc link for details):
* <ul>
* <li>{@link jogamp.opengl.util.av.NullGLMediaPlayer}</li>
* <li>{@link jogamp.opengl.util.av.impl.OMXGLMediaPlayer}</li>
* <li>{@link jogamp.opengl.util.av.impl.FFMPEGMediaPlayer}</li>
* <li>{@link jogamp.opengl.android.av.AndroidGLMediaPlayerAPI14}</li>
* </ul>
* </p>
* <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 100ms.
* </p>
*/
public interface GLMediaPlayer extends TextureSequence {
public static final boolean DEBUG = Debug.debug("GLMediaPlayer");
public interface GLMediaEventListener extends TexSeqEventListener<GLMediaPlayer> {
static final int EVENT_CHANGE_SIZE = 1<<0;
static final int EVENT_CHANGE_FPS = 1<<1;
static final int EVENT_CHANGE_BPS = 1<<2;
static final int EVENT_CHANGE_LENGTH = 1<<3;
static final int EVENT_CHANGE_CODEC = 1<<3;
/**
* @param mp the event source
* @param event_mask the changes attributes
* @param when system time in msec.
*/
public void attributesChanges(GLMediaPlayer mp, int event_mask, long when);
}
public enum State {
Uninitialized(0), Stopped(1), Playing(2), Paused(3);
public final int id;
State(int id){
this.id = id;
}
}
public int getTextureCount();
/** Defaults to 0 */
public void setTextureUnit(int u);
/** Sets the texture min-mag filter, defaults to {@link GL#GL_NEAREST}. */
public void setTextureMinMagFilter(int[] minMagFilter);
/** Sets the texture min-mag filter, defaults to {@link GL#GL_CLAMP_TO_EDGE}. */
public void setTextureWrapST(int[] wrapST);
/**
* Sets the stream to be used. Initializes all stream related states inclusive OpenGL ones,
* if <code>gl</code> is not null.
* <p>
* Uninitialized -> Stopped
* </p>
* @param gl current GL object. If null, no video output and textures will be available.
* @param urlConn the stream connection
* @return the new state
*
* @throws IllegalStateException if not invoked in state Uninitialized
* @throws IOException in case of difficulties to open or process the stream
* @throws GLException in case of difficulties to initialize the GL resources
*/
public State initGLStream(GL gl, URLConnection urlConn) throws IllegalStateException, GLException, IOException;
/**
* Releases the GL and stream resources.
* <p>
* <code>ANY</code> -> Uninitialized
* </p>
*/
public State destroy(GL gl);
public void setPlaySpeed(float rate);
public float getPlaySpeed();
/**
* Stopped/Paused -> Playing
*/
public State start();
/**
* Playing -> Paused
*/
public State pause();
/**
* Playing/Paused -> Stopped
*/
public State stop();
/**
* @return the current state, either Uninitialized, Stopped, Playing, Paused
*/
public State getState();
/**
* @return time current position in milliseconds
**/
public int getCurrentPosition();
/**
* Allowed in state Stopped, Playing and Paused, otherwise ignored.
*
* @param msec absolute desired time position in milliseconds
* @return time current position in milliseconds, after seeking to the desired position
**/
public int seek(int msec);
/**
* {@inheritDoc}
*/
@Override
public TextureSequence.TextureFrame getLastTexture() throws IllegalStateException;
/**
* {@inheritDoc}
*
* <p>
* In case the current state is not {@link State#Playing}, {@link #getLastTexture()} is returned.
* </p>
*
* @see #addEventListener(GLMediaEventListener)
* @see GLMediaEventListener#newFrameAvailable(GLMediaPlayer, long)
*/
@Override
public TextureSequence.TextureFrame getNextTexture(GL gl, boolean blocking) throws IllegalStateException;
public URLConnection getURLConnection();
/**
* <i>Warning:</i> Optional information, may not be supported by implementation.
* @return the code of the video stream, if available
*/
public String getVideoCodec();
/**
* <i>Warning:</i> Optional information, may not be supported by implementation.
* @return the code of the audio stream, if available
*/
public String getAudioCodec();
/**
* <i>Warning:</i> Optional information, may not be supported by implementation.
* @return the total number of video frames
*/
public long getTotalFrames();
/**
* @return total duration of stream in msec.
*/
public int getDuration();
/**
* <i>Warning:</i> Optional information, may not be supported by implementation.
* @return the overall bitrate of the stream.
*/
public long getStreamBitrate();
/**
* <i>Warning:</i> Optional information, may not be supported by implementation.
* @return video bitrate
*/
public int getVideoBitrate();
/**
* <i>Warning:</i> Optional information, may not be supported by implementation.
* @return the audio bitrate
*/
public int getAudioBitrate();
/**
* <i>Warning:</i> Optional information, may not be supported by implementation.
* @return the framerate of the video
*/
public float getFramerate();
public int getWidth();
public int getHeight();
public String toString();
public void addEventListener(GLMediaEventListener l);
public void removeEventListener(GLMediaEventListener l);
public GLMediaEventListener[] getEventListeners();
}
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