This the error i get when i try to run my program
- Error: Unable to realize com.sun.media.amovie.AMController@18b81e3
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Basically i have a mediapanel class that initialize and play the media as datasource
- import java.awt.BorderLayout;
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import java.awt.Component;
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import java.io.*;
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import java.net.URL;
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import javax.media.*;
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import javax.swing.JPanel;
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import java.nio.ByteBuffer;
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public class MediaPanel extends JPanel
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{
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InputStream stream;
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String name = "";
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ByteBuffer inputBuffer;
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byte[] store = null;
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public MediaPanel( InputStream in )
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{
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try{
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this.stream = in;
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//store stream as ByteBuffer
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store = new byte[stream.available()];
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stream.read(store);
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inputBuffer.allocate(store.length);
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inputBuffer.wrap(store);
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//get contentType
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DrmDecryption drm = new DrmDecryption();
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name = drm.naming;
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setLayout( new BorderLayout() ); // use a BorderLayout
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ByteBufferDataSource ds = new ByteBufferDataSource(inputBuffer,name);
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// Use lightweight components for Swing compatibility
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Manager.setHint( Manager.LIGHTWEIGHT_RENDERER, true );
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// create a player to play the media specified in the URL
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Player mediaPlayer = Manager.createRealizedPlayer(ds);
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// get the components for the video and the playback controls
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Component video = mediaPlayer.getVisualComponent();
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Component controls = mediaPlayer.getControlPanelComponent();
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if ( video != null )
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add( video, BorderLayout.CENTER ); // add video component
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if ( controls != null )
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add( controls, BorderLayout.SOUTH ); // add controls
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mediaPlayer.start(); // start playing the media clip
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}catch(Exception e){}
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} // end MediaPanel constructor
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} // end class MediaPanel
The ByteBufferDataSource class is use to create the datasource for the player
Here is where my problem lies, i have a SeekableStream to manipulate the control of the streaming position.
- import java.lang.reflect.Method;
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import java.lang.reflect.Constructor;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.BufferUnderflowException;
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import javax.media.protocol.PullSourceStream;
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import javax.media.protocol.Seekable;
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import javax.media.protocol.ContentDescriptor;
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public class SeekableStream implements PullSourceStream, Seekable {
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protected ByteBuffer inputBuffer;
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/**
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* a flag to indicate EOF reached
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*/
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/** Creates a new instance of SeekableStream */
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public SeekableStream(ByteBuffer byteBuffer) {
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inputBuffer = byteBuffer;
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this.seek((long)(0)); // set the ByteBuffer to to beginning
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}
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/**
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* Find out if the end of the stream has been reached.
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*
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* @return Returns true if there is no more data.
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*/
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public boolean endOfStream() {
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return (! inputBuffer.hasRemaining());
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}
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/**
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* Get the current content type for this stream.
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*
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* @return The current ContentDescriptor for this stream.
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*/
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public ContentDescriptor getContentDescriptor() {
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return null;
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}
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/**
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* Get the size, in bytes, of the content on this stream.
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*
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* @return The content length in bytes.
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*/
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public long getContentLength() {
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return inputBuffer.capacity();
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}
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/**
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* Obtain the object that implements the specified
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* Class or Interface
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* The full class or interface name must be used.
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*
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*
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* The control is not supported.
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* null is returned.
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*
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* @return null.
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*/
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public Object getControl(String controlType) {
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return null;
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}
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/**
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* Obtain the collection of objects that
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* control the object that implements this interface.
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*
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*
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* No controls are supported.
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* A zero length array is returned.
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*
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* @return A zero length array
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*/
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public Object[] getControls() {
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Object[] objects = new Object[0];
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return objects;
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}
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/**
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* Find out if this media object can position anywhere in the
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* stream. If the stream is not random access, it can only be repositioned
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* to the beginning.
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*
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* @return Returns true if the stream is random access, false if the stream can only
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* be reset to the beginning.
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*/
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public boolean isRandomAccess() {
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return true;
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}
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/**
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* Block and read data from the stream.
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*
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* Reads up to length bytes from the input stream into
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* an array of bytes.
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* If the first argument is null, up to
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* length bytes are read and discarded.
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* Returns -1 when the end
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* of the media is reached.
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*
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* This method only returns 0 if it was called with
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* a length of 0.
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*
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* @param buffer The buffer to read bytes into.
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* @param offset The offset into the buffer at which to begin writing data.
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* @param length The number of bytes to read.
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* @return The number of bytes read, -1 indicating
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* the end of stream, or 0 indicating read
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* was called with length 0.
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* @throws IOException Thrown if an error occurs while reading.
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*/
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public int read(byte[] buffer, int offset, int length) throws IOException {
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// return n (number of bytes read), -1 (eof), 0 (asked for zero bytes)
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if ( length == 0 )
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return 0;
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try {
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inputBuffer.get(buffer,offset,length);
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return length;
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}
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catch ( BufferUnderflowException E ) {
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return -1;
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}
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}
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public void close() {
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}
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/**
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* Seek to the specified point in the stream.
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* @param where The position to seek to.
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* @return The new stream position.
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*/
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public long seek(long where) {
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try {
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inputBuffer.position((int)(where));
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return where;
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}
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catch (IllegalArgumentException E) {
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return this.tell(); // staying at the current position
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}
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}
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/**
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* Obtain the current point in the stream.
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*/
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public long tell() {
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return inputBuffer.position();
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}
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/**
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* Find out if data is available now.
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* Returns true if a call to read would block
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* for data.
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*
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* @return Returns true if read would block; otherwise
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* returns false.
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*/
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public boolean willReadBlock() {
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return (inputBuffer.remaining() == 0);
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}
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}
