Adding a VideoRecorderAppState for Android. Performance is really bad, but it will at least run and store the AVI. Not really intended for app usage, but it's been handy in a couple of places. Just committing to lot lose the changes necessary to make it run. More work required, for sure.

jme3-android/src/main/java/com/jme3/app/state/MjpegFileWriter.java

@@ -0,0 +1,552 @@
+/*
+ * Copyright (c) 2009-2012 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.app.state;
+
+import android.graphics.Bitmap;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.RandomAccessFile;
+import java.nio.channels.FileChannel;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Released under BSD License
+ * @author monceaux, normenhansen, entrusC
+ */
+public class MjpegFileWriter {
+    private static final Logger logger = Logger.getLogger(MjpegFileWriter.class.getName());
+
+    int width = 0;
+    int height = 0;
+    double framerate = 0;
+    int numFrames = 0;
+    File aviFile = null;
+    FileOutputStream aviOutput = null;
+    FileChannel aviChannel = null;
+    long riffOffset = 0;
+    long aviMovieOffset = 0;
+    AVIIndexList indexlist = null;
+
+    public MjpegFileWriter(File aviFile, int width, int height, double framerate) throws Exception {
+        this(aviFile, width, height, framerate, 0);
+    }
+
+    public MjpegFileWriter(File aviFile, int width, int height, double framerate, int numFrames) throws Exception {
+        this.aviFile = aviFile;
+        this.width = width;
+        this.height = height;
+        this.framerate = framerate;
+        this.numFrames = numFrames;
+        aviOutput = new FileOutputStream(aviFile);
+        aviChannel = aviOutput.getChannel();
+
+        RIFFHeader rh = new RIFFHeader();
+        aviOutput.write(rh.toBytes());
+        aviOutput.write(new AVIMainHeader().toBytes());
+        aviOutput.write(new AVIStreamList().toBytes());
+        aviOutput.write(new AVIStreamHeader().toBytes());
+        aviOutput.write(new AVIStreamFormat().toBytes());
+        aviOutput.write(new AVIJunk().toBytes());
+        aviMovieOffset = aviChannel.position();
+        aviOutput.write(new AVIMovieList().toBytes());
+        indexlist = new AVIIndexList();
+    }
+
+    public void addImage(Bitmap image) throws Exception {
+        addImage(image, 0.8f);
+    }
+
+    public void addImage(Bitmap image, float quality) throws Exception {
+        addImage(writeImageToBytes(image, quality));
+    }
+
+    public void addImage(byte[] imagedata) throws Exception {
+        byte[] fcc = new byte[]{'0', '0', 'd', 'b'};
+        int useLength = imagedata.length;
+        long position = aviChannel.position();
+        int extra = (useLength + (int) position) % 4;
+        if (extra > 0) {
+            useLength = useLength + extra;
+        }
+
+        indexlist.addAVIIndex((int) position, useLength);
+
+        aviOutput.write(fcc);
+        aviOutput.write(intBytes(swapInt(useLength)));
+        aviOutput.write(imagedata);
+        if (extra > 0) {
+            for (int i = 0; i < extra; i++) {
+                aviOutput.write(0);
+            }
+        }
+        imagedata = null;
+
+        numFrames++; //add a frame
+    }
+
+    public void finishAVI() throws Exception {
+        logger.log(Level.INFO, "finishAVI");
+        byte[] indexlistBytes = indexlist.toBytes();
+        aviOutput.write(indexlistBytes);
+        aviOutput.close();
+        int fileSize = (int)aviFile.length();
+        logger.log(Level.INFO, "fileSize: {0}", fileSize);
+        int listSize = (int) (fileSize - 8 - aviMovieOffset - indexlistBytes.length);
+        logger.log(Level.INFO, "listSize: {0}", listSize);
+        logger.log(Level.INFO, "aviFile canWrite: {0}", aviFile.canWrite());
+        logger.log(Level.INFO, "aviFile AbsolutePath: {0}", aviFile.getAbsolutePath());
+        logger.log(Level.INFO, "aviFile numFrames: {0}", numFrames);
+
+        RandomAccessFile raf = new RandomAccessFile(aviFile, "rw");
+
+        //add header and length by writing the headers again
+        //with the now available information
+        raf.write(new RIFFHeader(fileSize).toBytes());
+        raf.write(new AVIMainHeader().toBytes());
+        raf.write(new AVIStreamList().toBytes());
+        raf.write(new AVIStreamHeader().toBytes());
+        raf.write(new AVIStreamFormat().toBytes());
+        raf.write(new AVIJunk().toBytes());
+        raf.write(new AVIMovieList(listSize).toBytes());
+
+        raf.close();
+    }
+
+    // public void writeAVI(File file) throws Exception
+    // {
+    // OutputStream os = new FileOutputStream(file);
+    //
+    // // RIFFHeader
+    // // AVIMainHeader
+    // // AVIStreamList
+    // // AVIStreamHeader
+    // // AVIStreamFormat
+    // // write 00db and image bytes...
+    // }
+    public static int swapInt(int v) {
+        return (v >>> 24) | (v << 24) | ((v << 8) & 0x00FF0000) | ((v >> 8) & 0x0000FF00);
+    }
+
+    public static short swapShort(short v) {
+        return (short) ((v >>> 8) | (v << 8));
+    }
+
+    public static byte[] intBytes(int i) {
+        byte[] b = new byte[4];
+        b[0] = (byte) (i >>> 24);
+        b[1] = (byte) ((i >>> 16) & 0x000000FF);
+        b[2] = (byte) ((i >>> 8) & 0x000000FF);
+        b[3] = (byte) (i & 0x000000FF);
+
+        return b;
+    }
+
+    public static byte[] shortBytes(short i) {
+        byte[] b = new byte[2];
+        b[0] = (byte) (i >>> 8);
+        b[1] = (byte) (i & 0x000000FF);
+
+        return b;
+    }
+
+    private class RIFFHeader {
+
+        public byte[] fcc = new byte[]{'R', 'I', 'F', 'F'};
+        public int fileSize = 0;
+        public byte[] fcc2 = new byte[]{'A', 'V', 'I', ' '};
+        public byte[] fcc3 = new byte[]{'L', 'I', 'S', 'T'};
+        public int listSize = 200;
+        public byte[] fcc4 = new byte[]{'h', 'd', 'r', 'l'};
+
+        public RIFFHeader() {
+        }
+
+        public RIFFHeader(int fileSize) {
+            this.fileSize = fileSize;
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(fileSize)));
+            baos.write(fcc2);
+            baos.write(fcc3);
+            baos.write(intBytes(swapInt(listSize)));
+            baos.write(fcc4);
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIMainHeader {
+        /*
+         *
+         * FOURCC fcc; DWORD cb; DWORD dwMicroSecPerFrame; DWORD
+         * dwMaxBytesPerSec; DWORD dwPaddingGranularity; DWORD dwFlags; DWORD
+         * dwTotalFrames; DWORD dwInitialFrames; DWORD dwStreams; DWORD
+         * dwSuggestedBufferSize; DWORD dwWidth; DWORD dwHeight; DWORD
+         * dwReserved[4];
+         */
+
+        public byte[] fcc = new byte[]{'a', 'v', 'i', 'h'};
+        public int cb = 56;
+        public int dwMicroSecPerFrame = 0;                                // (1
+        // /
+        // frames
+        // per
+        // sec)
+        // *
+        // 1,000,000
+        public int dwMaxBytesPerSec = 10000000;
+        public int dwPaddingGranularity = 0;
+        public int dwFlags = 65552;
+        public int dwTotalFrames = 0;                                // replace
+        // with
+        // correct
+        // value
+        public int dwInitialFrames = 0;
+        public int dwStreams = 1;
+        public int dwSuggestedBufferSize = 0;
+        public int dwWidth = 0;                                // replace
+        // with
+        // correct
+        // value
+        public int dwHeight = 0;                                // replace
+        // with
+        // correct
+        // value
+        public int[] dwReserved = new int[4];
+
+        public AVIMainHeader() {
+            dwMicroSecPerFrame = (int) ((1.0 / framerate) * 1000000.0);
+            dwWidth = width;
+            dwHeight = height;
+            dwTotalFrames = numFrames;
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(cb)));
+            baos.write(intBytes(swapInt(dwMicroSecPerFrame)));
+            baos.write(intBytes(swapInt(dwMaxBytesPerSec)));
+            baos.write(intBytes(swapInt(dwPaddingGranularity)));
+            baos.write(intBytes(swapInt(dwFlags)));
+            baos.write(intBytes(swapInt(dwTotalFrames)));
+            baos.write(intBytes(swapInt(dwInitialFrames)));
+            baos.write(intBytes(swapInt(dwStreams)));
+            baos.write(intBytes(swapInt(dwSuggestedBufferSize)));
+            baos.write(intBytes(swapInt(dwWidth)));
+            baos.write(intBytes(swapInt(dwHeight)));
+            baos.write(intBytes(swapInt(dwReserved[0])));
+            baos.write(intBytes(swapInt(dwReserved[1])));
+            baos.write(intBytes(swapInt(dwReserved[2])));
+            baos.write(intBytes(swapInt(dwReserved[3])));
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIStreamList {
+
+        public byte[] fcc = new byte[]{'L', 'I', 'S', 'T'};
+        public int size = 124;
+        public byte[] fcc2 = new byte[]{'s', 't', 'r', 'l'};
+
+        public AVIStreamList() {
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(size)));
+            baos.write(fcc2);
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIStreamHeader {
+        /*
+         * FOURCC fcc; DWORD cb; FOURCC fccType; FOURCC fccHandler; DWORD
+         * dwFlags; WORD wPriority; WORD wLanguage; DWORD dwInitialFrames; DWORD
+         * dwScale; DWORD dwRate; DWORD dwStart; DWORD dwLength; DWORD
+         * dwSuggestedBufferSize; DWORD dwQuality; DWORD dwSampleSize; struct {
+         * short int left; short int top; short int right; short int bottom; }
+         * rcFrame;
+         */
+
+        public byte[] fcc = new byte[]{'s', 't', 'r', 'h'};
+        public int cb = 64;
+        public byte[] fccType = new byte[]{'v', 'i', 'd', 's'};
+        public byte[] fccHandler = new byte[]{'M', 'J', 'P', 'G'};
+        public int dwFlags = 0;
+        public short wPriority = 0;
+        public short wLanguage = 0;
+        public int dwInitialFrames = 0;
+        public int dwScale = 0;                                // microseconds
+        // per
+        // frame
+        public int dwRate = 1000000;                          // dwRate
+        // /
+        // dwScale
+        // =
+        // frame
+        // rate
+        public int dwStart = 0;
+        public int dwLength = 0;                                // num
+        // frames
+        public int dwSuggestedBufferSize = 0;
+        public int dwQuality = -1;
+        public int dwSampleSize = 0;
+        public int left = 0;
+        public int top = 0;
+        public int right = 0;
+        public int bottom = 0;
+
+        public AVIStreamHeader() {
+            dwScale = (int) ((1.0 / framerate) * 1000000.0);
+            dwLength = numFrames;
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(cb)));
+            baos.write(fccType);
+            baos.write(fccHandler);
+            baos.write(intBytes(swapInt(dwFlags)));
+            baos.write(shortBytes(swapShort(wPriority)));
+            baos.write(shortBytes(swapShort(wLanguage)));
+            baos.write(intBytes(swapInt(dwInitialFrames)));
+            baos.write(intBytes(swapInt(dwScale)));
+            baos.write(intBytes(swapInt(dwRate)));
+            baos.write(intBytes(swapInt(dwStart)));
+            baos.write(intBytes(swapInt(dwLength)));
+            baos.write(intBytes(swapInt(dwSuggestedBufferSize)));
+            baos.write(intBytes(swapInt(dwQuality)));
+            baos.write(intBytes(swapInt(dwSampleSize)));
+            baos.write(intBytes(swapInt(left)));
+            baos.write(intBytes(swapInt(top)));
+            baos.write(intBytes(swapInt(right)));
+            baos.write(intBytes(swapInt(bottom)));
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIStreamFormat {
+        /*
+         * FOURCC fcc; DWORD cb; DWORD biSize; LONG biWidth; LONG biHeight; WORD
+         * biPlanes; WORD biBitCount; DWORD biCompression; DWORD biSizeImage;
+         * LONG biXPelsPerMeter; LONG biYPelsPerMeter; DWORD biClrUsed; DWORD
+         * biClrImportant;
+         */
+
+        public byte[] fcc = new byte[]{'s', 't', 'r', 'f'};
+        public int cb = 40;
+        public int biSize = 40;                               // same
+        // as
+        // cb
+        public int biWidth = 0;
+        public int biHeight = 0;
+        public short biPlanes = 1;
+        public short biBitCount = 24;
+        public byte[] biCompression = new byte[]{'M', 'J', 'P', 'G'};
+        public int biSizeImage = 0;                                // width
+        // x
+        // height
+        // in
+        // pixels
+        public int biXPelsPerMeter = 0;
+        public int biYPelsPerMeter = 0;
+        public int biClrUsed = 0;
+        public int biClrImportant = 0;
+
+        public AVIStreamFormat() {
+            biWidth = width;
+            biHeight = height;
+            biSizeImage = width * height;
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(cb)));
+            baos.write(intBytes(swapInt(biSize)));
+            baos.write(intBytes(swapInt(biWidth)));
+            baos.write(intBytes(swapInt(biHeight)));
+            baos.write(shortBytes(swapShort(biPlanes)));
+            baos.write(shortBytes(swapShort(biBitCount)));
+            baos.write(biCompression);
+            baos.write(intBytes(swapInt(biSizeImage)));
+            baos.write(intBytes(swapInt(biXPelsPerMeter)));
+            baos.write(intBytes(swapInt(biYPelsPerMeter)));
+            baos.write(intBytes(swapInt(biClrUsed)));
+            baos.write(intBytes(swapInt(biClrImportant)));
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIMovieList {
+
+        public byte[] fcc = new byte[]{'L', 'I', 'S', 'T'};
+        public int listSize = 0;
+        public byte[] fcc2 = new byte[]{'m', 'o', 'v', 'i'};
+
+        // 00db size jpg image data ...
+        public AVIMovieList() {
+        }
+
+        public AVIMovieList(int listSize) {
+            this.listSize = listSize;
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(listSize)));
+            baos.write(fcc2);
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIIndexList {
+
+        public byte[] fcc = new byte[]{'i', 'd', 'x', '1'};
+        public int cb = 0;
+        public List<AVIIndex> ind = new ArrayList<AVIIndex>();
+
+        public AVIIndexList() {
+        }
+
+        @SuppressWarnings("unused")
+        public void addAVIIndex(AVIIndex ai) {
+            ind.add(ai);
+        }
+
+        public void addAVIIndex(int dwOffset, int dwSize) {
+            ind.add(new AVIIndex(dwOffset, dwSize));
+        }
+
+        public byte[] toBytes() throws Exception {
+            cb = 16 * ind.size();
+
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(cb)));
+            for (int i = 0; i < ind.size(); i++) {
+                AVIIndex in = (AVIIndex) ind.get(i);
+                baos.write(in.toBytes());
+            }
+
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIIndex {
+
+        public byte[] fcc = new byte[]{'0', '0', 'd', 'b'};
+        public int dwFlags = 16;
+        public int dwOffset = 0;
+        public int dwSize = 0;
+
+        public AVIIndex(int dwOffset, int dwSize) {
+            this.dwOffset = dwOffset;
+            this.dwSize = dwSize;
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(dwFlags)));
+            baos.write(intBytes(swapInt(dwOffset)));
+            baos.write(intBytes(swapInt(dwSize)));
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    private class AVIJunk {
+
+        public byte[] fcc = new byte[]{'J', 'U', 'N', 'K'};
+        public int size = 1808;
+        public byte[] data = new byte[size];
+
+        public AVIJunk() {
+            Arrays.fill(data, (byte) 0);
+        }
+
+        public byte[] toBytes() throws Exception {
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            baos.write(fcc);
+            baos.write(intBytes(swapInt(size)));
+            baos.write(data);
+            baos.close();
+
+            return baos.toByteArray();
+        }
+    }
+
+    public byte[] writeImageToBytes(Bitmap image, float quality) throws Exception {
+        Bitmap bi;
+        if (image.getConfig() == Bitmap.Config.RGB_565) {
+            bi = image;
+        } else {
+            bi = image.copy(Bitmap.Config.RGB_565, false);
+            if (bi == null) {
+                throw new IllegalStateException("Could not convert Bitmap to RGB_565");
+            }
+        }
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+
+        bi.compress(Bitmap.CompressFormat.JPEG, (int)(quality*100), baos);
+        baos.close();
+        return baos.toByteArray();
+    }
+}

jme3-android/src/main/java/com/jme3/app/state/VideoRecorderAppState.java

@@ -0,0 +1,364 @@
+/*
+ * Copyright (c) 2009-2012 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.app.state;
+
+import android.graphics.Bitmap;
+import com.jme3.app.Application;
+import com.jme3.post.SceneProcessor;
+import com.jme3.renderer.Camera;
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.Renderer;
+import com.jme3.renderer.ViewPort;
+import com.jme3.renderer.queue.RenderQueue;
+import com.jme3.system.JmeSystem;
+import com.jme3.system.Timer;
+import com.jme3.texture.FrameBuffer;
+import com.jme3.util.AndroidScreenshots;
+import com.jme3.util.BufferUtils;
+import java.io.File;
+import java.nio.ByteBuffer;
+import java.util.List;
+import java.util.concurrent.*;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * A Video recording AppState that records the screen output into an AVI file with
+ * M-JPEG content. The file should be playable on any OS in any video player.<br/>
+ * The video recording starts when the state is attached and stops when it is detached
+ * or the application is quit. You can set the fileName of the file to be written when the
+ * state is detached, else the old file will be overwritten. If you specify no file
+ * the AppState will attempt to write a file into the user home directory, made unique
+ * by a timestamp.
+ * @author normenhansen, Robert McIntyre, entrusC
+ */
+public class VideoRecorderAppState extends AbstractAppState {
+    private static final Logger logger = Logger.getLogger(VideoRecorderAppState.class.getName());
+
+    private int numFrames = 0;
+    private int framerate = 30;
+    private VideoProcessor processor;
+    private File file;
+    private Application app;
+    private ExecutorService executor = Executors.newCachedThreadPool(new ThreadFactory() {
+
+        public Thread newThread(Runnable r) {
+            Thread th = new Thread(r);
+            th.setName("jME Video Processing Thread");
+            th.setDaemon(true);
+            return th;
+        }
+    });
+    private int numCpus = Runtime.getRuntime().availableProcessors();
+    private ViewPort lastViewPort;
+    private float quality;
+    private Timer oldTimer;
+
+    /**
+     * Using this constructor the video files will be written sequentially to the user's home directory with
+     * a quality of 0.8 and a framerate of 30fps.
+     */
+    public VideoRecorderAppState() {
+        this(null, 0.8f);
+    }
+
+    /**
+     * Using this constructor the video files will be written sequentially to the user's home directory.
+     * @param quality the quality of the jpegs in the video stream (0.0 smallest file - 1.0 largest file)
+     */
+    public VideoRecorderAppState(float quality) {
+        this(null, quality);
+    }
+
+    /**
+     * Using this constructor the video files will be written sequentially to the user's home directory.
+     * @param quality the quality of the jpegs in the video stream (0.0 smallest file - 1.0 largest file)
+     * @param framerate the frame rate of the resulting video, the application will be locked to this framerate
+     */
+    public VideoRecorderAppState(float quality, int framerate) {
+        this(null, quality, framerate);
+    }
+
+    /**
+     * This constructor allows you to specify the output file of the video. The quality is set
+     * to 0.8 and framerate to 30 fps.
+     * @param file the video file
+     */
+    public VideoRecorderAppState(File file) {
+        this(file, 0.8f);
+    }
+
+    /**
+     * This constructor allows you to specify the output file of the video as well as the quality
+     * @param file the video file
+     * @param quality the quality of the jpegs in the video stream (0.0 smallest file - 1.0 largest file)
+     * @param framerate the frame rate of the resulting video, the application will be locked to this framerate
+     */
+    public VideoRecorderAppState(File file, float quality) {
+        this.file = file;
+        this.quality = quality;
+        Logger.getLogger(this.getClass().getName()).log(Level.FINE, "JME3 VideoRecorder running on {0} CPU's", numCpus);
+    }
+
+    /**
+     * This constructor allows you to specify the output file of the video as well as the quality
+     * @param file the video file
+     * @param quality the quality of the jpegs in the video stream (0.0 smallest file - 1.0 largest file)
+     */
+    public VideoRecorderAppState(File file, float quality, int framerate) {
+        this.file = file;
+        this.quality = quality;
+        this.framerate = framerate;
+        Logger.getLogger(this.getClass().getName()).log(Level.FINE, "JME3 VideoRecorder running on {0} CPU's", numCpus);
+    }
+
+    public File getFile() {
+        return file;
+    }
+
+    public void setFile(File file) {
+        if (isInitialized()) {
+            throw new IllegalStateException("Cannot set file while attached!");
+        }
+        this.file = file;
+    }
+
+    /**
+     * Get the quality used to compress the video images.
+     * @return the quality of the jpegs in the video stream (0.0 smallest file - 1.0 largest file)
+     */
+    public float getQuality() {
+        return quality;
+    }
+
+    /**
+     * Set the video image quality from 0(worst/smallest) to 1(best/largest).
+     * @param quality the quality of the jpegs in the video stream (0.0 smallest file - 1.0 largest file)
+     */
+    public void setQuality(float quality) {
+        this.quality = quality;
+    }
+
+    @Override
+    public void initialize(AppStateManager stateManager, Application app) {
+        super.initialize(stateManager, app);
+        this.app = app;
+        this.oldTimer = app.getTimer();
+        app.setTimer(new IsoTimer(framerate));
+        if (file == null) {
+            String filename = JmeSystem.getStorageFolder(JmeSystem.StorageFolderType.External) + File.separator + "jMonkey-" + System.currentTimeMillis() / 1000 + ".avi";
+            logger.log(Level.INFO, "fileName: {0}", filename);
+            file = new File(filename);
+        }
+        processor = new VideoProcessor();
+        List<ViewPort> vps = app.getRenderManager().getPostViews();
+
+        for (int i = vps.size() - 1; i >= 0; i-- ) {
+            lastViewPort = vps.get(i);
+            if (lastViewPort.isEnabled()) {
+                break;
+            }
+        }
+        lastViewPort.addProcessor(processor);
+    }
+
+    @Override
+    public void cleanup() {
+        logger.log(Level.INFO, "removing processor");
+        lastViewPort.removeProcessor(processor);
+        app.setTimer(oldTimer);
+        initialized = false;
+        file = null;
+        super.cleanup();
+    }
+
+    private class WorkItem {
+
+        ByteBuffer buffer;
+        Bitmap image;
+        byte[] data;
+
+        public WorkItem(int width, int height) {
+            image = Bitmap.createBitmap(width, height,
+                    Bitmap.Config.ARGB_8888);
+            buffer = BufferUtils.createByteBuffer(width * height * 4);
+        }
+    }
+
+    private class VideoProcessor implements SceneProcessor {
+
+        private Camera camera;
+        private int width;
+        private int height;
+        private RenderManager renderManager;
+        private boolean isInitilized = false;
+        private LinkedBlockingQueue<WorkItem> freeItems;
+        private LinkedBlockingQueue<WorkItem> usedItems = new LinkedBlockingQueue<WorkItem>();
+        private MjpegFileWriter writer;
+        private boolean fastMode = true;
+
+        public void addImage(Renderer renderer, FrameBuffer out) {
+            if (freeItems == null) {
+                return;
+            }
+            try {
+                final WorkItem item = freeItems.take();
+                usedItems.add(item);
+                item.buffer.clear();
+                renderer.readFrameBuffer(out, item.buffer);
+                executor.submit(new Callable<Void>() {
+
+                    public Void call() throws Exception {
+                        if (fastMode) {
+                            item.data = item.buffer.array();
+                        } else {
+                            AndroidScreenshots.convertScreenShot(item.buffer, item.image);
+                            item.data = writer.writeImageToBytes(item.image, quality);
+                        }
+                        while (usedItems.peek() != item) {
+                            Thread.sleep(1);
+                        }
+                        writer.addImage(item.data);
+                        usedItems.poll();
+                        freeItems.add(item);
+                        return null;
+                    }
+                });
+            } catch (InterruptedException ex) {
+                Logger.getLogger(VideoRecorderAppState.class.getName()).log(Level.SEVERE, null, ex);
+            }
+        }
+
+        public void initialize(RenderManager rm, ViewPort viewPort) {
+            logger.log(Level.INFO, "initialize in VideoProcessor");
+            this.camera = viewPort.getCamera();
+            this.width = camera.getWidth();
+            this.height = camera.getHeight();
+            this.renderManager = rm;
+            this.isInitilized = true;
+            if (freeItems == null) {
+                freeItems = new LinkedBlockingQueue<WorkItem>();
+                for (int i = 0; i < numCpus; i++) {
+                    freeItems.add(new WorkItem(width, height));
+                }
+            }
+        }
+
+        public void reshape(ViewPort vp, int w, int h) {
+        }
+
+        public boolean isInitialized() {
+            return this.isInitilized;
+        }
+
+        public void preFrame(float tpf) {
+            if (null == writer) {
+                try {
+                    writer = new MjpegFileWriter(file, width, height, framerate);
+                } catch (Exception ex) {
+                    Logger.getLogger(VideoRecorderAppState.class.getName()).log(Level.SEVERE, "Error creating file writer: {0}", ex);
+                }
+            }
+        }
+
+        public void postQueue(RenderQueue rq) {
+        }
+
+        public void postFrame(FrameBuffer out) {
+            numFrames++;
+            addImage(renderManager.getRenderer(), out);
+        }
+
+        public void cleanup() {
+            logger.log(Level.INFO, "cleanup in VideoProcessor");
+            logger.log(Level.INFO, "VideoProcessor numFrames: {0}", numFrames);
+            try {
+                while (freeItems.size() < numCpus) {
+                    Thread.sleep(10);
+                }
+                logger.log(Level.INFO, "finishAVI in VideoProcessor");
+                writer.finishAVI();
+            } catch (Exception ex) {
+                Logger.getLogger(VideoRecorderAppState.class.getName()).log(Level.SEVERE, "Error closing video: {0}", ex);
+            }
+            writer = null;
+        }
+    }
+
+    public static final class IsoTimer extends com.jme3.system.Timer {
+
+        private float framerate;
+        private int ticks;
+        private long lastTime = 0;
+
+        public IsoTimer(float framerate) {
+            this.framerate = framerate;
+            this.ticks = 0;
+        }
+
+        public long getTime() {
+            return (long) (this.ticks * (1.0f / this.framerate) * 1000f);
+        }
+
+        public long getResolution() {
+            return 1000L;
+        }
+
+        public float getFrameRate() {
+            return this.framerate;
+        }
+
+        public float getTimePerFrame() {
+            return (float) (1.0f / this.framerate);
+        }
+
+        public void update() {
+            long time = System.currentTimeMillis();
+            long difference = time - lastTime;
+            lastTime = time;
+            if (difference < (1.0f / this.framerate) * 1000.0f) {
+                try {
+                    Thread.sleep(difference);
+                } catch (InterruptedException ex) {
+                }
+            } else {
+                logger.log(Level.INFO, "actual tpf(ms): {0}, 1/framerate(ms): {1}",
+                        new Object[]{difference, (1.0f / this.framerate) * 1000.0f});
+            }
+            this.ticks++;
+        }
+
+        public void reset() {
+            this.ticks = 0;
+        }
+    }
+}