Is it Possible??? AudioInputStream to DataSource

Question

Can anyone help me to convert one of these
javax.sound.sampled.AudioInputStream
java.io.InputStream
javax.sound.sampled.DataLine
javax.sound.sampled.SourceDataLine
to one of these
javax.media.protocol.DataSource
javax.media.bean.playerbean.MediaPlayer
javax.media.Manager
javax.media.Player
or any other Player in any other package that has a good set of controls like stop, play, seek and volume for MPEG3 audio
The obvious answer is write the stream to a file first and then use a MediaLocator. I don't want to write the stream to a file.
I can't work it out and after weeks of searching on the Internet I can't find a way of doing it. Why aren't there any packages, players or beans that play a stream?
Please help!

Answer 1

Thank you both for your advice.
MediaLocator is not an API. It is a class of Java Media Framework package javax.media
which allows you to play a wide variety of media with a good set of controls. It's very good but doesn't take an InputStream as an input. It takes URLs, Files, and DataSources.
I can't play from a File or URL because the source File is encrypted. I decrypt it to a java.io.InputStream and play it on the fly. The decrypted data goes to a 30Mbyte java.nio.ByteBuffer first. Then I create an InputStream from the ByteBuffer and then an AudioInutStream which I can play
At the moment I am using these classes to play the audio
javax.sound.sampled.AudioFormat;
javax.sound.sampled.AudioInputStream;
javax.sound.sampled.AudioSystem;
javax.sound.sampled.DataLine;
javax.sound.sampled.SourceDataLine;
as well as the Tritonus API to handle MP3 decoding
However JMF will decode MP3 if Suns mp3plugin is installed
I have problems with seeking. I get Buffer Overflow errors with large files and slow computers if I skip too far ahead. It doesn't work very well and JMF is easier. I made an application with it before. Just the conversion of java.io.InputStream to a valid JMF input is the problem. It's unfortunate that it doesn't have this facility built in.
So far I only found these that are claimed to work
http://www.tek-tips.com/viewthread.cfm?qid=288487
and
http://www.extollit.com/isdsjmf.php
I tried the first one and got this error
Unable to handle format: mpeglayer3, 44100.0 Hz, 16-bit, Stereo, LittleEndian, Signed, 16000.0 frame rate, FrameSize=32768 bits
Failed to realize: com.sun.media.PlaybackEngine@ba6c83
Error: Unable to realize com.sun.media.PlaybackEngine@ba6c83
javax.media.CannotRealizeException
at javax.media.Manager.blockingCall(Manager.java:2005)
at javax.media.Manager.createRealizedPlayer(Manager.java:580
I couldn't work it out beyond that so I came here.