Start a slideshow that picks the image in the catalog randomly?

Dear all
I wonder:
Is it possible to start a slideshow that randomly picks the images from the catalog (or from at selection of images in the catalog)?
Regards
Hans Brodin

You might try using this application, http://www.freemacware.com/desktop-movie-player, that will let you use a movie for your desktop picture and then hafve your Mac boot up to the desktop.

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regards, RP

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OT

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OT

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Problem while executing the code( that covert jpeg images to movie)

http://java.sun.com/products/java-media/jmf/2.1.1/solutions/JpegImagesToMovie.html
here is the code:
* @(#)JpegImagesToMovie.java     1.3 01/03/13
* Copyright (c) 1999-2001 Sun Microsystems, Inc. All Rights Reserved.
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
import java.io.*;
import java.util.*;
import java.awt.Dimension;
import javax.media.*;
import javax.media.control.*;
import javax.media.protocol.*;
import javax.media.protocol.DataSource;
import javax.media.datasink.*;
import javax.media.format.VideoFormat;
* This program takes a list of JPEG image files and convert them into
* a QuickTime movie.
public class JpegImagesToMovie3 implements ControllerListener, DataSinkListener {
public boolean doIt(int width, int height, int frameRate, Vector inFiles, MediaLocator outML) {
     ImageDataSource ids = new ImageDataSource(width, height, frameRate, inFiles);
     Processor p;
     try {
     System.err.println("- create processor for the image datasource ...");
     p = Manager.createProcessor(ids);
     } catch (Exception e) {
     System.err.println("Yikes! Cannot create a processor from the data source.");
     return false;
     p.addControllerListener(this);
     // Put the Processor into configured state so we can set
     // some processing options on the processor.
     p.configure();
     if (!waitForState(p, p.Configured)) {
     System.err.println("Failed to configure the processor.");
     return false;
     // Set the output content descriptor to QuickTime.
     p.setContentDescriptor(new ContentDescriptor(FileTypeDescriptor.QUICKTIME));
     // Query for the processor for supported formats.
     // Then set it on the processor.
     TrackControl tcs[] = p.getTrackControls();
     Format f[] = tcs[0].getSupportedFormats();
     if (f == null || f.length <= 0) {
     System.err.println("The mux does not support the input format: " + tcs[0].getFormat());
     return false;
     tcs[0].setFormat(f[0]);
     System.err.println("Setting the track format to: " + f[0]);
     // We are done with programming the processor. Let's just
     // realize it.
     p.realize();
     if (!waitForState(p, p.Realized)) {
     System.err.println("Failed to realize the processor.");
     return false;
     // Now, we'll need to create a DataSink.
     DataSink dsink;
     if ((dsink = createDataSink(p, outML)) == null) {
     System.err.println("Failed to create a DataSink for the given output MediaLocator: " + outML);
     return false;
     dsink.addDataSinkListener(this);
     fileDone = false;
     System.err.println("start processing...");
     // OK, we can now start the actual transcoding.
     try {
     p.start();
     dsink.start();
     } catch (IOException e) {
     System.err.println("IO error during processing");
     return false;
     // Wait for EndOfStream event.
     waitForFileDone();
     // Cleanup.
     try {
     dsink.close();
     } catch (Exception e) {}
     p.removeControllerListener(this);
     System.err.println("...done processing.");
     return true;
* Create the DataSink.
DataSink createDataSink(Processor p, MediaLocator outML) {
     DataSource ds;
     if ((ds = p.getDataOutput()) == null) {
     System.err.println("Something is really wrong: the processor does not have an output DataSource");
     return null;
     DataSink dsink;
     try {
     System.err.println("- create DataSink for: " + outML);
     dsink = Manager.createDataSink(ds, outML);
     dsink.open();
     } catch (Exception e) {
     System.err.println("Cannot create the DataSink: " + e);
     return null;
     return dsink;
Object waitSync = new Object();
boolean stateTransitionOK = true;
* Block until the processor has transitioned to the given state.
* Return false if the transition failed.
boolean waitForState(Processor p, int state) {
     synchronized (waitSync) {
     try {
          while (p.getState() < state && stateTransitionOK)
          waitSync.wait();
     } catch (Exception e) {}
     return stateTransitionOK;
* Controller Listener.
public void controllerUpdate(ControllerEvent evt) {
     if (evt instanceof ConfigureCompleteEvent ||
     evt instanceof RealizeCompleteEvent ||
     evt instanceof PrefetchCompleteEvent) {
     synchronized (waitSync) {
          stateTransitionOK = true;
          waitSync.notifyAll();
     } else if (evt instanceof ResourceUnavailableEvent) {
     synchronized (waitSync) {
          stateTransitionOK = false;
          waitSync.notifyAll();
     } else if (evt instanceof EndOfMediaEvent) {
     evt.getSourceController().stop();
     evt.getSourceController().close();
Object waitFileSync = new Object();
boolean fileDone = false;
boolean fileSuccess = true;
* Block until file writing is done.
boolean waitForFileDone() {
     synchronized (waitFileSync) {
     try {
          while (!fileDone)
          waitFileSync.wait();
     } catch (Exception e) {}
     return fileSuccess;
* Event handler for the file writer.
public void dataSinkUpdate(DataSinkEvent evt) {
     if (evt instanceof EndOfStreamEvent) {
     synchronized (waitFileSync) {
          fileDone = true;
          waitFileSync.notifyAll();
     } else if (evt instanceof DataSinkErrorEvent) {
     synchronized (waitFileSync) {
          fileDone = true;
          fileSuccess = false;
          waitFileSync.notifyAll();
public static void main(String args[]) {
     if (args.length == 0)
     prUsage();
     // Parse the arguments.
     int i = 0;
     int width = -1, height = -1, frameRate = 1;
     Vector inputFiles = new Vector();
     String outputURL = null;
     while (i < args.length) {
     if (args.equals("-w")) {
          i++;
          if (i >= args.length)
          prUsage();
          width = new Integer(args[i]).intValue();
     } else if (args[i].equals("-h")) {
          i++;
          if (i >= args.length)
          prUsage();
          height = new Integer(args[i]).intValue();
     } else if (args[i].equals("-f")) {
          i++;
          if (i >= args.length)
          prUsage();
          frameRate = new Integer(args[i]).intValue();
     } else if (args[i].equals("-o")) {
          i++;
          if (i >= args.length)
          prUsage();
          outputURL = args[i];
     } else {
          inputFiles.addElement(args[i]);
     i++;
     if (outputURL == null || inputFiles.size() == 0)
     prUsage();
     // Check for output file extension.
     if (!outputURL.endsWith(".mov") && !outputURL.endsWith(".MOV")) {
     System.err.println("The output file extension should end with a .mov extension");
     prUsage();
     if (width < 0 || height < 0) {
     System.err.println("Please specify the correct image size.");
     prUsage();
     // Check the frame rate.
     if (frameRate < 1)
     frameRate = 1;
     // Generate the output media locators.
     MediaLocator oml;
     if ((oml = createMediaLocator(outputURL)) == null) {
     System.err.println("Cannot build media locator from: " + outputURL);
     System.exit(0);
     JpegImagesToMovie3 imageToMovie3 = new JpegImagesToMovie3();
     imageToMovie3.doIt(width, height, frameRate, inputFiles, oml);
     System.exit(0);
static void prUsage() {
     System.err.println("Usage: java JpegImagesToMovie -w <width> -h <height> -f <frame rate> -o <output URL> <input JPEG file 1> <input JPEG file 2> ...");
     System.exit(-1);
* Create a media locator from the given string.
static MediaLocator createMediaLocator(String url) {
     MediaLocator ml;
     if (url.indexOf(":") > 0 && (ml = new MediaLocator(url)) != null)
     return ml;
     if (url.startsWith(File.separator)) {
     if ((ml = new MediaLocator("file:" + url)) != null)
          return ml;
     } else {
     String file = "file:" + System.getProperty("user.dir") + File.separator + url;
     if ((ml = new MediaLocator(file)) != null)
          return ml;
     return null;
// Inner classes.
* A DataSource to read from a list of JPEG image files and
* turn that into a stream of JMF buffers.
* The DataSource is not seekable or positionable.
class ImageDataSource extends PullBufferDataSource {
     ImageSourceStream streams[];
     ImageDataSource(int width, int height, int frameRate, Vector images) {
     streams = new ImageSourceStream[1];
     streams[0] = new ImageSourceStream(width, height, frameRate, images);
     public void setLocator(MediaLocator source) {
     public MediaLocator getLocator() {
     return null;
     * Content type is of RAW since we are sending buffers of video
     * frames without a container format.
     public String getContentType() {
     return ContentDescriptor.RAW;
     public void connect() {
     public void disconnect() {
     public void start() {
     public void stop() {
     * Return the ImageSourceStreams.
     public PullBufferStream[] getStreams() {
     return streams;
     * We could have derived the duration from the number of
     * frames and frame rate. But for the purpose of this program,
     * it's not necessary.
     public Time getDuration() {
     return DURATION_UNKNOWN;
     public Object[] getControls() {
     return new Object[0];
     public Object getControl(String type) {
     return null;
* The source stream to go along with ImageDataSource.
class ImageSourceStream implements PullBufferStream {
     Vector images;
     int width, height;
     VideoFormat format;
     int nextImage = 0;     // index of the next image to be read.
     boolean ended = false;
     public ImageSourceStream(int width, int height, int frameRate, Vector images) {
     this.width = width;
     this.height = height;
     this.images = images;
     format = new VideoFormat(VideoFormat.JPEG,
                    new Dimension(width, height),
                    Format.NOT_SPECIFIED,
                    Format.byteArray,
                    (float)frameRate);
     * We should never need to block assuming data are read from files.
     public boolean willReadBlock() {
     return false;
     * This is called from the Processor to read a frame worth
     * of video data.
     public void read(Buffer buf) throws IOException {
     // Check if we've finished all the frames.
     if (nextImage >= images.size()) {
          // We are done. Set EndOfMedia.
          System.err.println("Done reading all images.");
          buf.setEOM(true);
          buf.setOffset(0);
          buf.setLength(0);
          ended = true;
          return;
     String imageFile = (String)images.elementAt(nextImage);
     nextImage++;
     System.err.println(" - reading image file: " + imageFile);
     // Open a random access file for the next image.
     RandomAccessFile raFile;
     raFile = new RandomAccessFile(imageFile, "r");
     byte data[] = null;
     // Check the input buffer type & size.
     if (buf.getData() instanceof byte[])
          data = (byte[])buf.getData();
     // Check to see the given buffer is big enough for the frame.
     if (data == null || data.length < raFile.length()) {
          data = new byte[(int)raFile.length()];
          buf.setData(data);
     // Read the entire JPEG image from the file.
     raFile.readFully(data, 0, (int)raFile.length());
     System.err.println(" read " + raFile.length() + " bytes.");
     buf.setOffset(0);
     buf.setLength((int)raFile.length());
     buf.setFormat(format);
     buf.setFlags(buf.getFlags() | buf.FLAG_KEY_FRAME);
     // Close the random access file.
     raFile.close();
     * Return the format of each video frame. That will be JPEG.
     public Format getFormat() {
     return format;
     public ContentDescriptor getContentDescriptor() {
     return new ContentDescriptor(ContentDescriptor.RAW);
     public long getContentLength() {
     return 0;
     public boolean endOfStream() {
     return ended;
     public Object[] getControls() {
     return new Object[0];
     public Object getControl(String type) {
     return null;
on executing with the command:
java JpegImagesToMovie -w <width> -h <height> -f <frame rate per sec.> -o <output URL> <input JPEG file 1> <input JPEG file 2> ...
comes this......
Exception in thread"JMF thread:SendEventQueue:com.sun.media.processor.unknown Handler" java.lang.NullPointerException"
plz help

Don't forget to use the "Code Formatting Tags",
see http://forum.java.sun.com/help.jspa?sec=formatting,
so the posted code retains its original formatting.

IPhoto 11 slideshow mode decreases the image sharpness and quality

The images that weight over 5 MB and are fine and sharp become somewhat blured when displayed in the iPhoto '11 slideshow mode. The loss of image sharpness is just too big. The pictures look like they were made with a 100$ camera or even worse. I know the images are fine and big enough. I used picasa slideshow mode just to check. I saw a much better image quality and no noticable lose of sharpness.
Anyone has an idea why the iPhoto 11 slideshow mode looses so much image sharpness?

We all like iPhoto and its ease of use, good looks and fancy features.
However Aplle must concentrate on the core .... sufficient quality of the displayed images. The colors, sharpness, tones - the essence of photography
I understand that iPhoto is not the Aperture. But if the Slide Show mode virtually washes the sharpness away from the pictures than something is not right! Picture that is not sharp is worth the trash
If picasa slide show can do it I am sure iPhoto slide show can do it even better! We are waiting for the upgrade

Is it possible to open/start a slideshow using a button on the home page?

Hi all. I want a slideshow on the home page of my graphic design website, but ideally I want it to pop up 'in place' when a button is pressed (these buttons are for things like 'illustration', 'print design', 'logo design' etc, with each slideshow being a portfolio of images. Is this possible to do? So instead of the buttons each linking to their own page, they link to a slideshow that pops up on screen?
Let me know if you require further info.

Yes you can design this.
Use any composition , trigger can be used as button which would open container on click. In container insert slideshow with images.
The images used can be linked to their specific pages.
Thanks,
Sanjit

Start a slideshow that picks the image in the catalog randomly?

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