jflvlib-0.1 released

JFlvLib is a library that allows writing of Flash Videos (FLV format).

To use library user instantiates Capture instance using CaptureFactory class.
Capture c = CaptureFactory.getCapturer( os , new Dimension(xx , yy) ) ;

Capture interface provides 2 methods:
// generates new frame in compatible format for writing frame
BufferedImage newFrame();

// writes a frame to FLV stream
void writeFrame( BufferedImage image , int timestamp ) throws IOException;

At this stage library implements video only, SCREENVIDEO_CODEC and it generates only key frames. This is good for producting videos but they are larger than they need to be.

That's it.

TODO:
Optimize FLV creation writing not only keyframes but also interframes.
Implement other codecs (JPEG, H263, ...)
Add audio support

Example:

 package edu.mit.star.flvexample;
 
 import java.awt.Dimension;
 import java.awt.image.BufferedImage;
 import java.io.IOException;
 import java.io.OutputStream;
 
 import edu.mit.star.flv.Capture;
 import edu.mit.star.flv.CaptureFactory;
 
 
 public class Main
 {
 
     public static void main(String[] args)
     {
  try
  {
   OutputStream os = new java.io.FileOutputStream( "z:\\temp\\test.flv" );
   int xx = 256 ;
   int yy = 512 ;
   Capture c = CaptureFactory.getCapturer( os , new Dimension(xx , yy) ) ;
   int time = 0 ;
   while( time < 5000 )
   {
    BufferedImage image = c.newFrame() ;
    
    image.getGraphics().drawOval(0, 0, xx*time/5000, yy*time/5000);
    image.flush();
     
    c.writeFrame(image, time);
    time += 250;
    System.out.println( "Generating " + time + " ms frame.");
   }
   os.close();
  }
  catch( IOException ex )
  {
   ex.printStackTrace();
  }
     }
 }