[ruchig_iic]

Hi all ,

i had created one video player which is used to play 3gp file, MPEG file and an audio file using MMAPI and J2ME application.
i used J2ME wireless toolkit for this video player its working in J2ME wireless tool kit but when i install that application using .jad and .jar file its not working on a real device(sony ericsson K750i). it shows an application error in that.. what should i do.
i am sending u my src file midlet please tell me where is the problem.


import java.util.Hashtable;
import java.util.Enumeration;

import javax.microedition.lcdui.Item;
import javax.microedition.lcdui.List;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.CommandListener;

import javax.microedition.media.Player;
import javax.microedition.media.Control;
import javax.microedition.media.Manager;
import javax.microedition.media.PlayerListener;
import javax.microedition.media.control.VideoControl;

public class MediaMIDlet extends MIDlet
implements CommandListener, PlayerListener {

private Display display;
private List itemList;
private Form form;

private Command stopCommand;
private Command pauseCommand;
private Command startCommand;

private Hashtable items;
private Hashtable itemsInfo;

private Player player;

public MediaMIDlet() {

display = Display.getDisplay(this);

// creates an item list to let you select multimedia files to play
itemList = new List("Select an item to play", List.IMPLICIT);

// stop, pause and restart commands
stopCommand = new Command("Stop", Command.STOP, 1);
pauseCommand = new Command("Pause", Command.ITEM, 1);
startCommand = new Command("Start", Command.ITEM, 1);

// a form to display when items are being played
form = new Form("Playing media");

// the form acts as the interface to stop and pause the media
form.addCommand(stopCommand);
form.addCommand(pauseCommand);
form.setCommandListener(this);

// create a hashtable of items
items = new Hashtable();

// and a hashtable to hold information about them
itemsInfo = new Hashtable();

// and populate both of them


items.put("Siren from jar", "file://siren.wav");
itemsInfo.put("Siren from jar", "audio/x-wav");

items.put("Promo Video from jar", "file://promo.mpg");
itemsInfo.put("Promo Video from jar", "video/mpeg");

items.put("Video 3GP from jar", "file://l23.3gp");
itemsInfo.put("Video 3GP from jar", "video/3gpp");

}

public void startApp() {

// when MIDlet is started, use the item list to display elements
for(Enumeration en = items.keys(); en.hasMoreElements();) {
itemList.append((String)en.nextElement(), null);
}

itemList.setCommandListener(this);

// show the list when MIDlet is started
display.setCurrent(itemList);
}

public void pauseApp() {
// pause the player
try {
if(player != null) player.stop();
} catch(Exception e) {}
}

public void destroyApp(boolean unconditional) {
if(player != null) player.close(); // close the player
}

public void commandAction(Command command, Displayable disp) {

// generic command handler

// if list is displayed, the user wants to play the item
if(disp instanceof List) {
List list = ((List)disp);

String key = list.getString(list.getSelectedIndex());

// try and play the selected file
try {
playMedia((String)items.get(key), key);
} catch (Exception e) {
System.err.println("Unable to play: " + e);
e.printStackTrace();
}
} else if(disp instanceof Form) {

// if showing form, means the media is being played
// and the user is trying to stop or pause the player
try {

if(command == stopCommand) { // if stopping the media play

player.close(); // close the player
display.setCurrent(itemList); // redisplay the list of media
form.removeCommand(startCommand); // remove the start command
form.addCommand(pauseCommand); // add the pause command

} else if(command == pauseCommand) { // if pausing

player.stop(); // pauses the media, note that it is called stop
form.removeCommand(pauseCommand); // remove the pause command
form.addCommand(startCommand); // add the start (restart) command
} else if(command == startCommand) { // if restarting

player.start(); // starts from where the last pause was called
form.removeCommand(startCommand);
form.addCommand(pauseCommand);
}
} catch(Exception e) {
System.err.println(e);
}
}

}

/* Creates Player and plays media for the first time */
private void playMedia(String locator, String key) throws Exception {

// locate the actual file, we are only dealing
// with file based media here
String file = locator.substring(
locator.indexOf("file://") + 6,
locator.length());

// create the player
// loading it as a resource and using information about it
// from the itemsInfo hashtable
player =
Manager.createPlayer(
getClass().getResourceAsStream(file), (String)itemsInfo.get(key));

// a listener to handle player events like starting, closing etc
player.addPlayerListener(this);

player.setLoopCount(-1); // play indefinitely
player.prefetch(); // prefetch
player.realize(); // realize

player.start(); // and start

}

/* Handle player events */
public void playerUpdate(Player player, String event, Object eventData) {

// if the event is that the player has started, show the form
// but only if the event data indicates that the event relates to newly
// stated player, as the STARTED event is fired even if a player is
// restarted. Note that eventData indicates the time at which the start
// event is fired.
if(event.equals(PlayerListener.STARTED) &&
new Long(0L).equals((Long)eventData)) {

// see if we can show a video control, depending on whether the media
// is a video or not
VideoControl vc = null;
if((vc = (VideoControl)player.getControl("VideoControl")) != null) {
Item videoDisp =
(Item)vc.initDisplayMode(vc.USE_GUI_PRIMITIVE, null);
form.append(videoDisp);
}

display.setCurrent(form);
} else if(event.equals(PlayerListener.CLOSED)) {

form.deleteAll(); // clears the form of any previous controls
}
}

}

[peterblazejewicz]

hi,

fyi: here is SE example article (+files) about MMAPI (135) playback from resource files:
http://developer.sonyericsson.com/si...diomidp2.0.jsp

regards,
Peter

[manaspaira]

Hi,

can some body send me the application which helps in playing the 3gp video file in J2ME.


here is the code below:

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

import java.io.*;

import javax.microedition.io.*;
import javax.microedition.media.*;
import javax.microedition.media.control.*;

public class MIDlet1 extends MIDlet {
private static MIDlet1 instance;


/** Constructor */
public MIDlet1() {
instance = this;
}

/** Main method */
public void startApp() {

System.out.println("Hello World 2 from Middlet startApp()");
InputStream dis =null;

try {

HttpConnection c = (HttpConnection)Connector.open("http://localhost:8080/VideoStreaming/San.3gpp", Connector.READ);


System.out.println("after");

dis = c.openInputStream();

System.out.println(dis.available());
}
catch(Exception e) {
e.printStackTrace();
}

Canvas canvas = new Canvas() {
public void paint(Graphics g) {
g.setColor(255, 0, 0);
g.fillRect(0, 0, getWidth(), getHeight( ));
g.setColor(255, 255, 255);
g.drawString("Hello World!", 0, 0, g.TOP | g.LEFT);
}
};

Display display = Display.getDisplay(this);
display.setCurrent(canvas);

if ( dis != null) {

System.out.println("Trying to access player...");

try {
Player p = Manager.createPlayer(dis, "video/3gpp");
// Player p = Manager.createPlayer(dis, "video/mpeg");

p.realize();
VideoControl vc;
if ( (vc = (VideoControl) p.getControl("VideoControl")) != null) {
vc.initDisplayMode(VideoControl.USE_DIRECT_VIDEO, canvas);
vc.setDisplayLocation(0,0);
vc.setDisplaySize(100,100);
vc.setVisible(true);
}
p.start();
System.out.println("duration: " + p.getDuration());
}
catch (MediaException pe) {
pe.printStackTrace();
}
catch (IOException ioe) {
ioe.printStackTrace();
}
}

}

/** Handle pausing the MIDlet */
public void pauseApp() {
}

/** Handle destroying the MIDlet */
public void destroyApp(boolean unconditional) {
}

/** Quit the MIDlet */
public static void quitApp() {
instance.destroyApp(true);
instance.notifyDestroyed();
instance = null;
}


}


ERROR: getting the following error

javax.microedition.media.MediaException: Cannot create a Player for: video/3gpp

trie da lot to solve but couldn't.

please help me.

not able to run the video file in emulator neither in phone(Nokia 6681)

[dcrocha]

ERROR: getting the following error

javax.microedition.media.MediaException: Cannot create a Player for: video/3gpp

Try a newer emulator, or a Prototype SDK. What this message tells you is that the emulator you're using does not support playing 3gp videos from Java. Also, you need to make sure you have a web server running where the video is hosted...

Daniel