How to get the duration of any audio format
hi,
I got stuck once again..
I want to get the duration of any format of song I am playing.. I am using a jtable to list the songs that will be played. The four columns of the jTable are
1. TitleTitle of the song
2. AlbumDirectory that the song exist
3. Length - the duration of the song (Does not work)
4. Bitrate - The bit rate of the songs (Dont know to do)
I have tried the following code to get the length, If I try that code, the player does not add the file to the jTable itself.., but without that code it works properlyy...
privatevoid ToolAddMediaActionPerformed(java.awt.event.ActionEvent evt){
// TODO add your handling code here:
JFileChooser chooser =new JFileChooser();
FileNameExtensionFilter filter =new FileNameExtensionFilter("MP3, WAV & JMP","mp3","wav","jmp");
chooser.setFileFilter(filter);
chooser.setAcceptAllFileFilterUsed(false);
chooser.setCurrentDirectory(new File("Z:/Jmedia/important"));
int returnVal = chooser.showOpenDialog(this);
File file = chooser.getSelectedFile();
try{
FileInputStream fis =new FileInputStream(file);
}catch (FileNotFoundException ex){
ex.printStackTrace();
}
Time len=p.getMediaTime();//to get the media time, also tried getDuration()
//System.out.println(len.getSeconds()/60);
if(returnVal == JFileChooser.APPROVE_OPTION){
System.out.println("You chose to open this file: " +
chooser.getSelectedFile().getAbsolutePath());
if(file.getName().endsWith(".jmp")){
try{
BufferedReader br=new BufferedReader(new FileReader(file));
String str="";
try{
while((str=br.readLine())!=null){
int tfname = str.lastIndexOf(File.separatorChar);
String fname = str.substring(tfname + 1);
if(fname.endsWith(".mp3")|| fname.endsWith(".wav")){
((DefaultTableModel)jTable1.getModel()).addRow(new String[]{fname, str,"",""});
((DefaultTableModel)jTable2.getModel()).addRow(new String[]{fname, str,"",""});
}
}
}catch (IOException ex){
ex.printStackTrace();
}
}catch (FileNotFoundException ex){
ex.printStackTrace();
}
}elseif(file.getName().endsWith(".mp3")|| file.getName().endsWith(".wav")){
((DefaultTableModel)jTable1.getModel()).addRow(new String[]{chooser.getSelectedFile().getName(), chooser.getSelectedFile().getAbsolutePath(),""+len,""});
((DefaultTableModel)jTable2.getModel()).addRow(new String[]{chooser.getSelectedFile().getName(), chooser.getSelectedFile().getAbsolutePath(),""+len,""});
}
}
}
[5066 byte] By [
Spaniana] at [2007-11-26 21:52:12]
# 1
You have to use getDuration()
# 2
if u try to mean that I have to use getduration() in the place of getMediaTime(),that too doesn't work..,Wait for a while.., I will try one more thing and inform u
# 3
Or else you can even get the file size and then divide it by it's bit rate to get the duration.
# 4
If I use getDuration() in the place of get media time.. It too does not display anything in the jTable.., Also it displays the following error..
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at jmedia.NewJFrame.ToolAddMediaActionPerformed(NewJFrame.java:1106)
at jmedia.NewJFrame.access$000(NewJFrame.java:42)
at jmedia.NewJFrame$2.actionPerformed(NewJFrame.java:186)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:377)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:232)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
at java.awt.Component.processMouseEvent(Component.java:5999)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3240)
at java.awt.Component.processEvent(Component.java:5764)
at java.awt.Container.processEvent(Container.java:1984)
at java.awt.Component.dispatchEventImpl(Component.java:4407)
at java.awt.Container.dispatchEventImpl(Container.java:2042)
at java.awt.Component.dispatchEvent(Component.java:4237)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4248)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3912)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3842)
at java.awt.Container.dispatchEventImpl(Container.java:2028)
at java.awt.Window.dispatchEventImpl(Window.java:2405)
at java.awt.Component.dispatchEvent(Component.java:4237)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:600)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
# 5
Which means the player has not reached a state where it can determine the streams duration. If it is unable to determine the duration it would return Duration.DURATION_UNKNOWN reference.
# 6
see, if the dusratiion is unknown, then it should print in the jtable that the duration is unknown right..,bcoz of this I am not able to proceed with the seek bar toooo
# 7
It's working for me. I will tell you how to do it in 5 minutes.
# 8
hey, also if am trying to just print the duration in the console, it doesnot work...It gives the same big error
# 9
also have u tried it with the same code what I have posted
# 10
> see, if the dusratiion is unknown, then it should
> print in the jtable that the duration is unknown
No it shouldn't. DURATION_UNKNOWN is a static field of the type Time in the Duration interface
> right..,
>
> bcoz of this I am not able to proceed with the seek
> bar toooo
You have to call getVisualComponent( ) on the Player to get the seek bar.
# 11
It doesn't. Run this code. Set the path to some .mp3 in your system.
import javax.media.*;
import java.io.*;
import java.net.*;
public class JMF2
{
public static void main(String args[]) throws Exception
{
Player player=Manager.createRealizedPlayer(new URL("file:///I:/January 26th 2006/Sum41/All Killer No Filler/02 Sum 41 - Nothing on my Back.mp3"));
System.out.println("Before start()"+player.getDuration().getSeconds());
player.start();
System.out.println("After start()"+player.getDuration().getSeconds());
}
}
Message was edited by:
qUesT_foR_knOwLeDge
# 12
As you see after i call getDuration( ) i get the file duration, but one thing you have to observe is that the player is realized.
# 13
You are getting NullPointerException because you haven't even created a Player and you are calling getMediaTime( )
# 14
You are getting NullPointerException because you haven't even created a Player and you are calling getMediaTime( )
# 15
hey,In the given code P is the player and I have tried it with the following code too.,,p = Manager.createPlayer(mediaURL);and with the following code too...p = Manager.createRealizedPlayer(mediaURL);both it gives the same issue..
# 16
> hey,
> In the given code P is the player and I have tried it
> with the following code too.,,
>
> p = Manager.createPlayer(mediaURL);
>
> and with the following code too...
>
> p = Manager.createRealizedPlayer(mediaURL);
>
> both it gives the same issue..
Look at this part of the code you posted in this thread
Time len=p.getMediaTime();//to get the media time, also tried getDuration()
//System.out.println(len.getSeconds()/60);
if(returnVal == JFileChooser.APPROVE_OPTION) {
System.out.println("You chose to open this file: " +
chooser.getSelectedFile().getAbsolutePath());
Here you see that you still haven't loaded the playlist so obviously you still haven't selected the file to play. But you are calling p.getMediaTime( ), which results in a NullPointerException.
# 17
It doesn't work man..,I tried it to print in the console immediately after the p.start() method get invokes..,the old big error was gone, but it does not print...Also can u tell me the difference between createPlayer() and createRealizedPlayer()
# 18
yesss..i got it to print in the console after making it as createRealizedPlayer()but now how to add it to the jTable...that too in the length column
# 19
hey Quest,,Thats working now properly and I could display the length in jTable tooo.. Can u help in adding the Bit rate..,, to the jTable
# 20
> hey Quest,,
> Thats working now properly and I could display the
> length in jTable tooo.. Can u help in adding the Bit
> rate..,, to the jTable
Fine. Right now i am a bit busy. When i am free i will get back to the forum later. Meanwhile, others here can help you with your questions.
And also note that if you have received the solution for a particular question i sugget you start a new thread for your next question ( As always suggested at the forum ) for this reason
-Any new member who has just come to the forum to find the solution to a problem can search the forum and if a solution is already present he can go through it than again post his question. Just a general suggsetion in the interest of the forum.
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