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Como gravar videos em Java ME

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{{ArticleMetaData
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|sourcecode= <!-- Link to example source code e.g. [[Media:The Code Example ZIP.zip]] -->
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|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 +
|devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
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|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
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|platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
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|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
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|signing=<!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
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|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
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|translated-by= <!-- [[User:XXXX]] -->
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|translated-from-id= <!-- Id of translated revision -->
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Aqui vai um exemplo de código para gravação de vídeo em Java ME:
 
Aqui vai um exemplo de código para gravação de vídeo em Java ME:
  
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[[Category:Java ME]][[Category:Code Examples]][[Category:Lang-Portuguese]]

Revision as of 07:49, 9 December 2011

Article Metadata

Artigo
Criado por dcrocha em Dcrocha
Última alteração feita por hamishwillee em 09 Dec 2011

Aqui vai um exemplo de código para gravação de vídeo em Java ME:

dcrocha 19:48, 22 October 2007 (UTC)

package example;
 
import java.io.OutputStream;
 
import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Graphics;
import javax.microedition.media.Manager;
import javax.microedition.media.Player;
import javax.microedition.media.PlayerListener;
import javax.microedition.media.control.RecordControl;
import javax.microedition.media.control.VideoControl;
 
public class VideoCanvas extends Canvas implements PlayerListener, CommandListener {
 
private VideoRecordMIDlet midlet = null;
private Command start = new Command("Start",Command.OK,0);
private Command stop = new Command("Stop",Command.OK,1);
private Command exit = new Command("Exit",Command.BACK,0);
private Command play = new Command("Play",Command.OK,2);
private String status = "Not initialized";
private Player player = null;
private VideoControl control = null;
private RecordControl record = null;
private boolean recording = false;
private FileConnection conn = null;
private OutputStream stream = null;
private String PATH = System.getProperty("fileconn.dir.videos") + "vi.3gp";
 
/**
* Constructor
*
* @param midlet
*/

 
public VideoCanvas(VideoRecordMIDlet midlet) {
System.out.println(PATH);
this.midlet = midlet;
addCommand(play);
addCommand(start);
addCommand(stop);
addCommand(exit);
setCommandListener(this);
}
 
public void commandAction(Command c, Displayable arg1) {
if(c == start) {
recording = true;
startRecording();
}
else if(c == stop) {
stop();
recording = false;
}
else if(c == play) {
recording = false;
repaint();
startPlaying();
}
else if(c == exit) {
midlet.notifyDestroyed();
}
}
 
/**
* Paint
*/

 
protected void paint(Graphics g) {
g.setColor(0,0,0);
g.fillRect(0,0,getWidth(),getHeight());
}
 
public void startRecording() {
try {
player = Manager.createPlayer("capture://video");
player.addPlayerListener(this);
player.realize();
 
//setup recording
record = (RecordControl)player.getControl("RecordControl");
record.setRecordSizeLimit(300000);
conn = (FileConnection)Connector.open(PATH,Connector.READ_WRITE);
if(!conn.exists()) conn.create();
stream = conn.openOutputStream();
record.setRecordStream(stream);
 
// Grab the video control and set it to the current display.
control = (VideoControl)player.getControl("VideoControl");
if (control != null) {
control.initDisplayMode(VideoControl.USE_DIRECT_VIDEO,this);
control.setDisplaySize(getWidth(),getHeight());
control.setVisible(true);
}
 
player.start();
record.startRecord();
}
catch(Exception e) {
Alert erro = new Alert("Erro",e.toString(),null,AlertType.ERROR);
Display.getDisplay(midlet).setCurrent(erro);
e.printStackTrace();
}
}
 
/**
* Start
*
*/

 
public void startPlaying() {
try {
player = Manager.createPlayer(PATH);
player.addPlayerListener(this);
player.realize();
 
// Grab the video control and set it to the current display.
control = (VideoControl)player.getControl("VideoControl");
if (control != null) {
control.initDisplayMode(VideoControl.USE_DIRECT_VIDEO,this);
control.setDisplaySize(176,144);
control.setDisplayLocation((getWidth() - control.getDisplayWidth()) / 2,(getHeight() - control.getDisplayHeight()) / 2);
control.setVisible(true);
}
 
player.start();
}
catch(Exception e) {
Alert erro = new Alert("Erro",e.getMessage(),null,AlertType.ERROR);
Display.getDisplay(midlet).setCurrent(erro);
e.printStackTrace();
}
}
 
public void stop() {
if(player != null) {
try {
if(recording) {
record.stopRecord();
record.commit();
stream.close();
}
player.stop();
player.deallocate();
player.close();
player = null;
if(recording) {
Alert alert = new Alert("Mensagem","Gravado em " + PATH,null,AlertType.INFO);
Display.getDisplay(midlet).setCurrent(alert,this);
stream = null;
}
 
if(conn != null)
conn.close();
}
catch(Exception e) {
 
}
}
}
 
public void playerUpdate(Player p, String s, Object o) {
 
if(p.getState() == Player.STARTED) {
status = control.getDisplayHeight() + "=" + control.getDisplayWidth();
setTitle(status);
}
 
}
 
}
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