rlm@9: package com.aurellem.capture.video;
rlm@9: 
rlm@9: import java.awt.image.BufferedImage;
rlm@9: import java.io.File;
rlm@9: import java.io.IOException;
rlm@9: import java.nio.ByteBuffer;
rlm@9: 
rlm@9: import com.aurellem.capture.IsoTimer;
rlm@9: import com.jme3.app.Application;
rlm@9: import com.jme3.app.state.AppState;
rlm@9: import com.jme3.app.state.AppStateManager;
rlm@9: import com.jme3.post.SceneProcessor;
rlm@9: import com.jme3.renderer.Camera;
rlm@9: import com.jme3.renderer.RenderManager;
rlm@9: import com.jme3.renderer.ViewPort;
rlm@9: import com.jme3.renderer.queue.RenderQueue;
rlm@9: import com.jme3.texture.FrameBuffer;
rlm@9: import com.jme3.util.BufferUtils;
rlm@9: import com.jme3.util.Screenshots;
rlm@9: 
rlm@9: /**
rlm@39:  * <code>VideoRecorder</code> copies the frames it receives to video. 
rlm@9:  * To ensure smooth video at a constant framerate, you should set your 
rlm@39:  * application's timer to a new <code>IsoTimer</code>.  This class will 
rlm@9:  * auto-determine the framerate of the video based on the time difference 
rlm@9:  * between the first two frames it receives, although you can manually set 
rlm@9:  * the framerate by calling <code>setFps(newFramerate)</code>.  Be sure to 
rlm@9:  * place this processor *after* any other processors whose effects you want 
rlm@9:  * to be included in the output video. You can attach multiple 
rlm@9:  * <code>VideoProcessor</code>s to the same <code>ViewPort</code>.
rlm@9:  * 
rlm@9:  * For example,
rlm@9:  * <code>
rlm@9:  * someViewPort.addProcessor(new VideoProcessor(file1));
rlm@9:  * someViewPort.addProcessor(someShadowRenderer);
rlm@9:  * someViewPort.addProcessor(new VideoProcessor(file2));
rlm@9:  * </code>
rlm@9:  * 
rlm@9:  * will output a video without shadows to <code>file1</code> and a video 
rlm@9:  * with shadows to <code>file2</code>
rlm@9:  * 
rlm@9:  * @author Robert McIntyre
rlm@9:  *
rlm@9:  */
rlm@9: 
rlm@9: public abstract class AbstractVideoRecorder 
rlm@39: 	implements SceneProcessor, VideoRecorder, AppState{
rlm@9: 
rlm@9: 	final File output;
rlm@9: 	Camera camera;
rlm@9: 	int width;
rlm@9: 	int height;
rlm@9: 	String targetFileName;
rlm@9: 	FrameBuffer frameBuffer;
rlm@9: 	Double fps = null;
rlm@9: 	RenderManager renderManager;
rlm@9: 	ByteBuffer byteBuffer;
rlm@9: 	BufferedImage rawFrame;
rlm@9: 	boolean isInitilized = false;
rlm@9: 	boolean paused = false;
rlm@9: 	
rlm@9: 	public AbstractVideoRecorder(File output) throws IOException {
rlm@9: 		this.output = output;
rlm@9: 		this.targetFileName = this.output.getCanonicalPath();	
rlm@9: 	}
rlm@9: 	
rlm@9: 		
rlm@9: 	public double getFps() {return this.fps;}
rlm@9: 	
rlm@9: 	public AbstractVideoRecorder setFps(double fps) {
rlm@9: 		this.fps = fps;
rlm@9: 		return this;
rlm@9: 	}
rlm@9: 	
rlm@9: 	public void initialize(RenderManager rm, ViewPort viewPort) {
rlm@9: 		Camera camera = viewPort.getCamera();
rlm@9: 		this.width = camera.getWidth();
rlm@9: 		this.height = camera.getHeight();
rlm@9: 				
rlm@9: 		rawFrame = new BufferedImage(width, height, 
rlm@9: 				BufferedImage.TYPE_4BYTE_ABGR);		
rlm@9: 		byteBuffer = BufferUtils.createByteBuffer(width * height * 4 );
rlm@9: 		this.renderManager = rm;
rlm@9: 		this.isInitilized = true;
rlm@9: 	}
rlm@9: 
rlm@9: 	public void reshape(ViewPort vp, int w, int h) {}
rlm@9: 	
rlm@9: 	public boolean isInitialized() {return this.isInitilized;}
rlm@9: 
rlm@9: 	public void preFrame(float tpf) {
rlm@9: 		if (null == this.fps){
rlm@9: 			this.setFps(1.0 / tpf);}
rlm@9: 	}	
rlm@9: 	
rlm@9: 	public void postQueue(RenderQueue rq) {}
rlm@9: 
rlm@9: 	public void postFrame(FrameBuffer out) {
rlm@9: 		if (!this.paused){
rlm@9: 			byteBuffer.clear();
rlm@9: 			renderManager.getRenderer().readFrameBuffer(out, byteBuffer);
rlm@9: 			Screenshots.convertScreenShot(byteBuffer, rawFrame);
rlm@9: 			record(rawFrame);
rlm@9: 		}
rlm@9: 	}
rlm@9: 			
rlm@9: 	public void cleanup(){
rlm@9: 		this.pause();
rlm@9: 		this.finish();
rlm@9: 	};
rlm@9: 	
rlm@9: 	public void pause(){
rlm@9: 		this.paused = true;
rlm@9: 	}
rlm@9: 	
rlm@9: 	public void start(){
rlm@9: 		this.paused = false;
rlm@9: 	}
rlm@9: 
rlm@9: 	// methods from AppState
rlm@9: 	public void initialize(AppStateManager stateManager, Application app) {}
rlm@9: 
rlm@9: 	public void setEnabled(boolean active) {
rlm@9: 		if (active) {this.start();}
rlm@9: 		else {this.pause();}
rlm@9: 	}
rlm@9: 
rlm@9: 	public boolean isEnabled() {
rlm@9: 		return this.paused;
rlm@9: 	}
rlm@9: 
rlm@9: 	public void stateAttached(AppStateManager stateManager) {}
rlm@9: 
rlm@9: 
rlm@9: 	public void stateDetached(AppStateManager stateManager) {
rlm@9: 		this.pause();
rlm@9: 		this.finish();
rlm@9: 	}
rlm@9: 
rlm@9: 	public void update(float tpf) {}	
rlm@9: 	public void render(RenderManager rm) {}
rlm@9: 	public void postRender() {}
rlm@9: 	
rlm@9: }