JMF Pause

Question

Hello!
I will start by saying i'm only a begginer in JMF programming. I want to make a pause function, which teoretically is very simple to make but i don't know why, it seems like it only works with some songs, and with others it doesn't. I mean, it works playing all of them from the beginning, but when i try pausing them, with some it doesn't work. And always the same songs, so it's not some mistake i made (maybe it is, but a more complex one, that's why i need your help). So the code for my music file:
public class MP3V2 {
URL url;
Player audioplayer;
boolean paused;
Time resume;
public MP3V2(URL u){//for starting from the beginning
try{
url=u;
audioplayer=Manager.createRealizedPlayer(url);
} catch(Exception e){}
public MP3V2(URL u,Time time){ //for resume
try{
url=u;
audioplayer=Manager.createRealizedPlayer(url);
audioplayer.setMediaTime(time);
} catch(Exception e){}
public void stop(){
if(audioplayer!=null) audioplayer.stop();
public void start(){
new Thread(){
public void run() {
try {
audioplayer.start();
catch (Exception e) { System.out.println(e.getMessage()); }
}}.start();
And the code for pause:
try{
if(paused==0) {
time= mp3.audioplayer.getMediaTime();
mp3.stop();
paused=play;
play=0;//some variables i need
else {
mp3 = new MP3V2(files[paused].toURL(),time);
mp3.start();
play=paused;
paused=0;
} catch(Exception e) {System.out.println(e.getMessage());}
In other words when i resume i actually start a new song but not from the beginning. The problem is that with some songs, the track remains stuck at the setting time, even after using start() method. Do you know what do i do wrong, or do you know a simpler way to make a pause function?

Answer 1

In order for that approach to work, the DataSource has to be Positionable... which some are not.
I believe some people have had sucess in the past implementing pause by stopping and then just calling start again...