Mercurial > jmeCapture

annotate src/com/aurellem/capture/AbstractVideoRecorder.java @ 4:edaa7e7806e4

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migrated IsoTimer
author Robert McIntyre <rlm@mit.edu>
date Tue, 25 Oct 2011 12:03:01 -0700
parents a92de00f0414
children
rev   line source
rlm@3 1 package com.aurellem.capture;
rlm@3 2
rlm@3 3 import java.awt.image.BufferedImage;
rlm@3 4 import java.io.File;
rlm@3 5 import java.io.IOException;
rlm@3 6 import java.nio.ByteBuffer;
rlm@3 7
rlm@3 8 import com.jme3.app.Application;
rlm@3 9 import com.jme3.app.state.AppState;
rlm@3 10 import com.jme3.app.state.AppStateManager;
rlm@3 11 import com.jme3.post.SceneProcessor;
rlm@3 12 import com.jme3.renderer.Camera;
rlm@3 13 import com.jme3.renderer.RenderManager;
rlm@3 14 import com.jme3.renderer.ViewPort;
rlm@3 15 import com.jme3.renderer.queue.RenderQueue;
rlm@3 16 import com.jme3.texture.FrameBuffer;
rlm@3 17 import com.jme3.util.BufferUtils;
rlm@3 18 import com.jme3.util.Screenshots;
rlm@3 19
rlm@3 20 /**
rlm@3 21 * <code>VideoProcessor</code> copies the frames it receives to video.
rlm@3 22 * To ensure smooth video at a constant framerate, you should set your
rlm@3 23 * application's timer to a new {@link IsoTimer}. This class will
rlm@3 24 * auto-determine the framerate of the video based on the time difference
rlm@3 25 * between the first two frames it receives, although you can manually set
rlm@3 26 * the framerate by calling <code>setFps(newFramerate)</code>. Be sure to
rlm@3 27 * place this processor *after* any other processors whose effects you want
rlm@3 28 * to be included in the output video. You can attach multiple
rlm@3 29 * <code>VideoProcessor</code>s to the same <code>ViewPort</code>.
rlm@3 30 *
rlm@3 31 * For example,
rlm@3 32 * <code>
rlm@3 33 * someViewPort.addProcessor(new VideoProcessor(file1));
rlm@3 34 * someViewPort.addProcessor(someShadowRenderer);
rlm@3 35 * someViewPort.addProcessor(new VideoProcessor(file2));
rlm@3 36 * </code>
rlm@3 37 *
rlm@3 38 * will output a video without shadows to <code>file1</code> and a video
rlm@3 39 * with shadows to <code>file2</code>
rlm@3 40 *
rlm@3 41 * @author Robert McIntyre
rlm@3 42 *
rlm@3 43 */
rlm@3 44
rlm@3 45 public abstract class AbstractVideoRecorder
rlm@3 46 implements SceneProcessor, IVideoRecorder, AppState{
rlm@3 47
rlm@3 48 final File output;
rlm@3 49 Camera camera;
rlm@3 50 int width;
rlm@3 51 int height;
rlm@3 52 String targetFileName;
rlm@3 53 FrameBuffer frameBuffer;
rlm@3 54 Double fps = null;
rlm@3 55 RenderManager renderManager;
rlm@3 56 ByteBuffer byteBuffer;
rlm@3 57 BufferedImage rawFrame;
rlm@3 58 boolean isInitilized = false;
rlm@3 59 boolean paused = false;
rlm@3 60
rlm@3 61 public AbstractVideoRecorder(File output) throws IOException {
rlm@3 62 this.output = output;
rlm@3 63 this.targetFileName = this.output.getCanonicalPath();
rlm@3 64 }
rlm@3 65
rlm@3 66
rlm@3 67 public double getFps() {return this.fps;}
rlm@3 68
rlm@3 69 public AbstractVideoRecorder setFps(double fps) {
rlm@3 70 this.fps = fps;
rlm@3 71 return this;
rlm@3 72 }
rlm@3 73
rlm@3 74 public void initialize(RenderManager rm, ViewPort viewPort) {
rlm@3 75 Camera camera = viewPort.getCamera();
rlm@3 76 this.width = camera.getWidth();
rlm@3 77 this.height = camera.getHeight();
rlm@3 78
rlm@3 79 rawFrame = new BufferedImage(width, height,
rlm@3 80 BufferedImage.TYPE_4BYTE_ABGR);
rlm@3 81 byteBuffer = BufferUtils.createByteBuffer(width * height * 4 );
rlm@3 82 this.renderManager = rm;
rlm@3 83 this.isInitilized = true;
rlm@3 84 }
rlm@3 85
rlm@3 86 public void reshape(ViewPort vp, int w, int h) {}
rlm@3 87
rlm@3 88 public boolean isInitialized() {return this.isInitilized;}
rlm@3 89
rlm@3 90 public void preFrame(float tpf) {
rlm@3 91 if (null == this.fps){
rlm@3 92 this.setFps(1.0 / tpf);}
rlm@3 93 }
rlm@3 94
rlm@3 95 public void postQueue(RenderQueue rq) {}
rlm@3 96
rlm@3 97 public void postFrame(FrameBuffer out) {
rlm@3 98 if (!this.paused){
rlm@3 99 byteBuffer.clear();
rlm@3 100 renderManager.getRenderer().readFrameBuffer(out, byteBuffer);
rlm@3 101 Screenshots.convertScreenShot(byteBuffer, rawFrame);
rlm@3 102 record(rawFrame);
rlm@3 103 }
rlm@3 104 }
rlm@3 105
rlm@3 106 public void cleanup(){
rlm@3 107 this.pause();
rlm@3 108 this.finish();
rlm@3 109 };
rlm@3 110
rlm@3 111 public void pause(){
rlm@3 112 this.paused = true;
rlm@3 113 }
rlm@3 114
rlm@3 115 public void start(){
rlm@3 116 this.paused = false;
rlm@3 117 }
rlm@3 118
rlm@3 119 // methods from AppState
rlm@3 120 public void initialize(AppStateManager stateManager, Application app) {}
rlm@3 121
rlm@3 122 public void setEnabled(boolean active) {
rlm@3 123 if (active) {this.start();}
rlm@3 124 else {this.pause();}
rlm@3 125 }
rlm@3 126
rlm@3 127 public boolean isEnabled() {
rlm@3 128 return this.paused;
rlm@3 129 }
rlm@3 130
rlm@3 131 public void stateAttached(AppStateManager stateManager) {}
rlm@3 132
rlm@3 133
rlm@3 134 public void stateDetached(AppStateManager stateManager) {
rlm@3 135 this.pause();
rlm@3 136 this.finish();
rlm@3 137 }
rlm@3 138
rlm@3 139 public void update(float tpf) {}
rlm@3 140 public void render(RenderManager rm) {}
rlm@3 141 public void postRender() {}
rlm@3 142
rlm@3 143 }