Non-interactive FrameAccess.java and frame conversion woes

Hello all,
I am searching for a way to convert a webcam-acquired AVI file into a sequence of numbered TIFF images (one for each movie frame). While searching the 'net, I ran into the well-known sample called FrameAccess.java. Although it looks like a good starting point, I got stuck by a number of problems:
1) I'm not interested in visualizing the frames as they get processed: I've got tons of players I can check the movie with before feeding it in to my extractor. A simple non-interactive application would be better. However, when I comment out the AWT-related portions of FrameAccess, it hangs after processing two or three frames.
2) Which way is better to process the single frame with: PreAccess or PostAccess?
2.1) In PreAccess it looks like the frame is still in raw YUV420 format, whereas in PostAccess it seems to have undergone some conversion since the buffer size is equal to the number of pixels. But the buffer data is returned as short[] when I would expect it to be of type byte[]. What am I missing here?
3) Although it is a priori known that the AVI files were acquired in B/W mode, it looks like the AVI is made of 8-bit RGB frames. How can I possibly convert them into 8-bit or 16-bit grayscale images and save them as TIFF images? (*)
Any ideas/hints/suggestions whatsoever that might help me tackle the above problems will be highly valued.
Thanks in advance,
Emmanuele
(*) I am aware that this question could be partly off-topic since it may fall more appropriately into the Java2D/JAI realm. However, for the moment I'd like not to open too many threads.

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FrameAccess.java: Modifying frame rate capture ?

I'm currently supposed to capture the keyframes in a video and I've managed to find FrameAccess.java that has allowed me to capture all the frames in the video.
However, I do not need to capture every single frame; just need to capture frames maybe every 20 seconds or so.
-> Therefore, how do I go about doing it?
Also, when I ran FrameAccess.java, it seems that when it has reached the end of the video, it will keep trying to capture the last frame and it won't end until I manually end it.
-> How do I rectify this error?
I really hope someone can help. Thanks in advanced.
Edited by: silentvisual on Mar 4, 2009 1:08 AM

However, I do not need to capture every single frame; just need to capture frames maybe every 20 seconds or so. You can grab the frames using FrameGrabbingControl. Then why use FrameAccess.java??
If you use FrameGrabbingControl, then using Timer you can grab frames at whatever interval you want, e.g. try the following code:
[http://forums.sun.com/thread.jspa?messageID=10595229#10595229]
It uses a timer to grab frames at 30ms (you can make it 1000ms or anything by changing this line : " timer = new Timer(30, this);" ).
Now, I don't know what you want to do after capturing images, do you want to save images only or do you want to make a video from this, if this is the case then you can search for "Jpeg to Movie" JMF program example on this site.
Also, when I ran FrameAccess.java, it seems that when it has reached the end of the video, it will keep trying to capture the last frame and it won't end until I manually end it. For me, there is no such problem. The program ends when the end of video file is reached.
Thanks!

[SOLVED] Non-interactive SSH login and shell startup files

I have a problem getting git-annex connecting to my arch box because of
PATH not being correctly set. When diagnosing this problem I noticed that
~/.bashrc seems to be ignored for non-interactive SSH logins. More specifically,
ssh myhost env
Shows that when connecting to my other computer running gentoo, or to a
separate server (probably running some flavor of Debian, I am not sure),
environment variables defined in ~/.bashrc are present, but when connecting
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I looked into this a bit more and found BASH_ENV which can be used to point to
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BASH_ENV=~/.bashrc
in /etc/environment, and now ~/.bashrc is sourced even for non-interactive
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try creating a .login file and put exec bash in there.
Not _super_ familiar with csh, but I *think* csh loads .login only on login shells (as apposed to always loading .cshrc).
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if (! $?prompt) goto cshrc_end
exec bash
cshrc_end:

Re: Problems with FrameAccess.java and createProcessor

John,
try file://C:/filename.mpeg
instead of
File://C:/filename.mpegI think you'll find it works. Or at least, I'm convinced the error is in the url you are passing in the command line.
Good luck,
Damian

Oops, just read your post more carefully:
However, when i run it, giving the filename as as argument,What I meant in the above post is that the command line requires an url rather than just a filename.
Hope I've made myself a bit clearer.
Damian

Error during activation of adobe non-interactive form

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Rachna.

Hi,
I am facing the same problem of "Error during activation" while activating the SAP interactive form.
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Hi experts
I am new to Adobe Print Form (non-interactive flowed form) and I am desparately need your help.
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i've found frameaccess, which introduces a plugin in transcoding phase of processing.my question are, (i'm a newbie of jmf) it's possibile to modify in the code below the processor to have in shell display,time of presentation of each frame?another question is :it's possible to modify framerate and bit x pixel of output?
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////////////code
* @(#)FrameAccess.java     1.5 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.awt.*;
import javax.media.*;
import javax.media.control.TrackControl;
import javax.media.Format;
import javax.media.format.*;
* Sample program to access individual video frames by using a
* "pass-thru" codec. The codec is inserted into the data flow
* path. As data pass through this codec, a callback is invoked
* for each frame of video data.
public class FrameAccess extends Frame implements ControllerListener {
Processor p;
Object waitSync = new Object();
boolean stateTransitionOK = true;
* Given a media locator, create a processor and use that processor
* as a player to playback the media.
* During the processor's Configured state, two "pass-thru" codecs,
* PreAccessCodec and PostAccessCodec, are set on the video track.
* These codecs are used to get access to individual video frames
* of the media.
* Much of the code is just standard code to present media in JMF.
public boolean open(MediaLocator ml) {
     try {
     p = Manager.createProcessor(ml);
     } catch (Exception e) {
     System.err.println("Failed to create a processor from the given url: " + e);
     return false;
     p.addControllerListener(this);
     // Put the Processor into configured state.
     p.configure();
     if (!waitForState(p.Configured)) {
     System.err.println("Failed to configure the processor.");
     return false;
     // So I can use it as a player.
     p.setContentDescriptor(null);
     // Obtain the track controls.
     TrackControl tc[] = p.getTrackControls();
     if (tc == null) {
     System.err.println("Failed to obtain track controls from the processor.");
     return false;
     // Search for the track control for the video track.
     TrackControl videoTrack = null;
     for (int i = 0; i < tc.length; i++) {
     if (tc.getFormat() instanceof VideoFormat) {
          videoTrack = tc[i];
          break;
     if (videoTrack == null) {
     System.err.println("The input media does not contain a video track.");
     return false;
     System.err.println("Video format: " + videoTrack.getFormat());
     // Instantiate and set the frame access codec to the data flow path.
     try {
     Codec codec[] = { new PreAccessCodec(),
                    new PostAccessCodec()};
     videoTrack.setCodecChain(codec);
     } catch (UnsupportedPlugInException e) {
     System.err.println("The process does not support effects.");
     // Realize the processor.
     p.prefetch();
     if (!waitForState(p.Prefetched)) {
     System.err.println("Failed to realize the processor.");
     return false;
     // Display the visual & control component if there's one.
     setLayout(new BorderLayout());
     Component cc;
     Component vc;
     if ((vc = p.getVisualComponent()) != null) {
     add("Center", vc);
     if ((cc = p.getControlPanelComponent()) != null) {
     add("South", cc);
     // Start the processor.
     p.start();
     setVisible(true);
     return true;
public void addNotify() {
     super.addNotify();
     pack();
* Block until the processor has transitioned to the given state.
* Return false if the transition failed.
boolean waitForState(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) {
     p.close();
     System.exit(0);
* Main program
public static void main(String [] args) {
     if (args.length == 0) {
     prUsage();
     System.exit(0);
     String url = args[0];
     if (url.indexOf(":") < 0) {
     prUsage();
     System.exit(0);
     MediaLocator ml;
     if ((ml = new MediaLocator(url)) == null) {
     System.err.println("Cannot build media locator from: " + url);
     System.exit(0);
     FrameAccess fa = new FrameAccess();
     if (!fa.open(ml))
     System.exit(0);
static void prUsage() {
     System.err.println("Usage: java FrameAccess <url>");
* Inner class.
* A pass-through codec to access to individual frames.
public class PreAccessCodec implements Codec {
* Callback to access individual video frames.
     void accessFrame(Buffer frame) {
     // For demo, we'll just print out the frame #, time &
     // data length.
     long t = (long)(frame.getTimeStamp()/10000000f);
     System.err.println("Pre: frame #: " + frame.getSequenceNumber() +
               ", time: " + ((float)t)/100f +
               ", len: " + frame.getLength());
     * The code for a pass through codec.
     // We'll advertize as supporting all video formats.
     protected Format supportedIns[] = new Format [] {
     new VideoFormat(null)
     // We'll advertize as supporting all video formats.
     protected Format supportedOuts[] = new Format [] {
     new VideoFormat(null)
     Format input = null, output = null;
     public String getName() {
     return "Pre-Access Codec";
     // No op.
public void open() {
     // No op.
     public void close() {
     // No op.
     public void reset() {
     public Format [] getSupportedInputFormats() {
     return supportedIns;
     public Format [] getSupportedOutputFormats(Format in) {
     if (in == null)
          return supportedOuts;
     else {
          // If an input format is given, we use that input format
          // as the output since we are not modifying the bit stream
          // at all.
          Format outs[] = new Format[1];
          outs[0] = in;
          return outs;
     public Format setInputFormat(Format format) {
     input = format;
     return input;
     public Format setOutputFormat(Format format) {
     output = format;
     return output;
     public int process(Buffer in, Buffer out) {
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     accessFrame(in);
     // Swap the data between the input & output.
     Object data = in.getData();
     in.setData(out.getData());
     out.setData(data);
     // Copy the input attributes to the output
     out.setFormat(in.getFormat());
     out.setLength(in.getLength());
     out.setOffset(in.getOffset());
     return BUFFER_PROCESSED_OK;
     public Object[] getControls() {
     return new Object[0];
     public Object getControl(String type) {
     return null;
public class PostAccessCodec extends PreAccessCodec {
     // We'll advertize as supporting all video formats.
     public PostAccessCodec() {
     supportedIns = new Format [] {
          new RGBFormat()
* Callback to access individual video frames.
     void accessFrame(Buffer frame) {
     // For demo, we'll just print out the frame #, time &
     // data length.
     long t = (long)(frame.getTimeStamp()/10000000f);
     System.err.println("Post: frame #: " + frame.getSequenceNumber() +
               ", time: " + ((float)t)/100f +
               ", len: " + frame.getLength());
     public String getName() {
     return "Post-Access Codec";

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PulpMotion $129
FotoMagico $99
Final Cut Pro X $299
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Problem when generating an non-interactive form in Web Dynpro java.

Hi,
I'm trying to create a PDFDocument using a creation context in java. Everything works fine when the Interactive property of the creation context is set to true. When I change it to false however, the Web dynpro application hangs and eventually throws the following exception:
java.net.SocketTimeoutException: Read timed out
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I'm wondering why this exception occurs when i'm generating a non interactive form and never appears when i'm generating a form with the Interactive property set to true.
Any ideas?
Edited by: Arjan Nieuwenhuizen on Feb 25, 2008 3:24 PM

Yeah I know changing the form properties will solve my problem, but since i'm developing a training for Interactive Forms in Web Dynpro Java, I wanted to figure out why the (static / non-interactive) combination didn't work, turned out to be a template problem, which i still didn't figure out, except the fact that having flowed content on your template is not the problem.
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When we have the layout of an Interactive Form, its clear if it's meant to be static or dynamic, we don't know however, if it's interactive or non-interactive.
I don't think we can judge a layout to have an Interactive or non-interactive purpose, can depend on the situation in which the same form is shown/used:
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So it's more the scenario/situation that determines if the form is interactive or non-interactive.

ADOBE form interactive and non-interactive... (HR)

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I have the following requirement:
I have to provide a page within the sap enterprise portal to allow the employee to track his presence. In this page the employee has to check a presence/absence flag and in another page he can justify his absence with some reason.
I didn't find a standard functionality to meet this requirement, so I think a new form has to be created.
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ADOBE Interactive Form.
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ADOBE non-interactive Form
A webdynpro (java or abap) or a BSP has to be built to create some values, then once the user save/submit the information a PDF document is created with the information created in the previous page.
What is the difference between ADOBE (non-interactive) Form and ADOBE Interactive Form? The difference is that the first one is not editable? There is a big difference in terms of complexity develop an interactive or a non-interactive adobe form?
BSP that generates the PDF as output?
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MP

Reader credential rights missing. Now it works.

Data conversion for communication between Java and C/C++ program

The real problem, i guess, is about data type conversion between Java and C programs. For instance, and int is supposed to be 4 bytes in Java, and also in C/C++. But, as far as I know, the size of and int in C depends on the processors architecture, so if it were a 64 bit arch., size of and int, double, etc. in C, would change. The real scenario would be a communication between a 32 bit machine (Java) and a 64 bit machine (C/C++).
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cotton.m wrote:
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I understand what you mean, also the topic you referenced. I will explain the situation a bit more. The protocol is already defined: (16 bits message size, 16 message id, 32 bit time, etc.); it is also defined in C (structures and so on). So it would be easy to write my Java code using the specified protocol in bytes, and C types wouldn't be necessary to be considered. But, let's say that the C code can't be modified, and I thought (and don't know yet if its correct), that size of C types CAN changed depending on architecture. So if size changes for C types (code is specified in short, int, etc, and not in bit format), it all would be a mess, if I don't implement something in my Java code.
cotton.m wrote:
I don't believe that 32 or 64 bit enters the equation here at all.Maybe 32 o 64 doesn't mind, but sparc or PC could take a point here. Communication would be between a sun solaris sparc and windows x86 PC. But if type size in C/C++ does not change, I wouldn't really have any problem then...
The situation is not ideal, I know, but is what I have; and I think I could have problems if I run the C program in other machines; so I would have to try to solve it whithin my Java Program.
I hope it is clear now what I need.
thx
Edited by: MGasa on Jan 16, 2008 1:51 AM

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Hi ,
I am trying to send the interactive adobe form as non-interactive form through email.The interactive form size is very large because of the interactivity.
Can anybody suggest how to do this.
Regards,
Debasis

Dear Antony,
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I got you but can you pls guide me how to go about it.
I need to send the email while submiting the form.So when and how i will be mapping each data node /attibutes of the main form with the intermediate form.My interactive form is of 30 pages and it may grow upto 40 pages.My response is with the to the main form where i am showing the success message.
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As a long time C/C++ programmer I was pleased to see printf added to Java5, however one of (IMO) the most useful features - using an asterisk in the format string to indicate a fields width modifier is to be taken from the varargs list doesn't appear to work:
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Thanks, I understand that. What I am referring to is this from the docs:
http://sharkysoft.com/archive/printf/docs/javadocs/lava/clib/stdio/doc-files/specification.htm
1.3.1. variable width
It is possible to specify a variable field width, where one of the arguments in the argument vector is used to determine the field's width. This is indicated in the format string by using an asterisk character ('*') in place of the actual width value. The corresponding value in the argument list must be an int, and must precede the actual argument being formatted.
Example: If the format specifier is "%*hd", then there are two arguments in the argument list corresponding to this format specifier. The first argument is an int, indicating the field width, and the second argument is converted as a signed short.

Comparision matrix of Webdynpro Java and Adobe Interactive form

Hi Experts,
In our project we have to choose the GUI between Webdynpro Java and Adobe Interactive forms. Can anyone help me out with strong comparision parameter's in order to select the right technology.
Thank you in advance.

Hi ,
Depends on your project requirement : if you project is simple and want to use less UI controls then use Adobe Interactive Forms (AIF).
But In your project needs large number of UI controls and to show huge amount of data then best option is Web Dynpro Java.
Web Dynpro provides wide varieties of UI controls for designing your web application . Adobe Interactive Forms have limited controls .
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If your Client data is huge AIF take so much of time to render your content and also this depends on your reader version installed on the end user too . Web Dynpro Java is Client neutral & it won't take much time to render the content.
Use AIF to show/process Business data in any Web application. ideally it is not suited for complete GUI of your project .
Regards,
Rakesh Kumar

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Hi ,
I have one more question requesting for an answer.
Would like to know what is the Difference between using Java and Non-Java in Webi.
Thank You in advance.
Appana Ganesh.

Hi,
check the Information in following post, the differences are discussed there:
http://scn.sap.com/thread/3295306
best regards,
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