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import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.jcodec.api.FrameGrab;
import org.jcodec.api.JCodecException;
import org.jcodec.api.awt.AWTSequenceEncoder;
import org.jcodec.common.io.*;
import org.jcodec.common.io.NIOUtils;
import org.jcodec.common.io.SeekableByteChannel;
import org.jcodec.common.model.Picture;
import org.jcodec.common.model.Rational;
import org.jcodec.common.model.*;
import org.jcodec.scale.*;
import org.jcodec.scale.AWTUtil;
public class getFrames {
//Splits the video into separate frames and dumps them in the frame-dump folder.
//Function is currently unused in the program
public static void splitVideo(File video) throws IOException, JCodecException{
double startSec = 0;
int frameCount = 1292;
FrameGrab grab = FrameGrab.createFrameGrab(NIOUtils.readableChannel(video));
grab.seekToSecondPrecise(startSec);
for (int i = 0; i < frameCount; i++) {
Picture picture = grab.getNativeFrame();
System.out.println(picture.getWidth() + "x" + picture.getHeight() + " " + picture.getColor());
BufferedImage bufferedImage = AWTUtil.toBufferedImage(picture);
ImageIO.write(bufferedImage, "png", new File("frame-dump/frame"+i+".png"));
}
}
public static String encoded;
public static void editVideo(File video) throws IOException, JCodecException{
SeekableByteChannel sbc = NIOUtils.readableChannel(video);
FrameGrab grab = FrameGrab.createFrameGrab(sbc);
AWTSequenceEncoder encoder = AWTSequenceEncoder.create30Fps(new File("output.mp4"));
Picture picture;
int i = 0;
while ((picture = grab.getNativeFrame()) != null)
{
BufferedImage image = AWTUtil.toBufferedImage(picture);
int width = image.getWidth();
int height = image.getHeight();
for(int y = 0; y < height; y++){
for(int x = 0; x < width; x++){
int p = image.getRGB(x,y);
int a = (p>>24)&0xff;
int r = (p>>16)&0xff;
int g = (p>>8)&0xff;
int b = p&0xff;
int avg = (r+g+b)/3;
//apply a different alpha value to each pixel
p = (a<<20) | (avg<<16) | (avg<<8) | avg;
image.setRGB(x, y, p);
}
}
encoder.encodeImage(image);
i++;
encoded = "Encoded frame "+i;
System.out.println("Encoded frame "+i);
}
encoder.finish();
}
}
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