Screen cast over RTP

Hello every body
I've got a question about RTP. I'm trying to make a screen cast applycation using the Robot java class. So I take screenshots to make a new video (avi) file with them using JMF. But I want to send that video using RTP in real time. In fact I want to make screencast over RTP, in real time. Is it possible?
At this time, I'm able to record the screen, then I save that in a .avi File. When the .AVI file is made, I send it over RTP, but this is not real time.
Thx
Flo

Presumably, you're using the following sample code to create the AVI:
[http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/JpegImagesToMovie.html]
And you're using the following sample code(or something similar) to send the AVI via RTP:
[http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/VideoTransmit.html]
Regardless, instead of creating a DataSource from a MediaLocator that points to your AVI file, you can just use the DataSource that's generating the AVI files, and make that be the DataSource that's driving your RTP session.

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Hello everyone,
I am seeing a solution to an issue invilving screen casting. I am playing World of Warcraft and am trying to capture certain events as video's. I have attempted using programs such as iShowU and Snapz but the results are far from acceptable. They simply make the game look as if I were to take screen captures over and over with a one or two second delay inbetween them. Not to mention these programs take a battle axe to my graphic cards performance. The card isn't a bad card either, a Radeon x800. I was wondering what is the best way to go about capturing video of my game. I had a little idea of doing some sort of pass-through through my mini-dv camera to capture raw video from my graphic cards output... but doing this is easier said than done... actually I don't even know how to go about doing this. Can someone lend me a hand? I want some kind of video captures with a bit of ability to edit it and capturing around 20fps... even if the game is running under that at times. My machine make is as follows:
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Since the game is using all the CPU and graphics board power it can get, any software recording will slow the game. The only way to get full speed recording is with an external VCR or DVD recorder. To get suitable video you can use a DVI to video adapter
<http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore.woa/6884001/wo/LP5a dys1a8md2bwmixK21w5cbZA/1.0.21.1.0.8.25.7.11.2.3>
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Get the ATI Displays software from
<http://www.ati.com> to get more control over the video output. It should let you mirror the display to the video with them having different resolutions.
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Video not played using JMF while tramitting stream over RTP

video not played using JMF while tramitting stream over RTP
I am using code to tranmit video using RTP using JMF and i am able to successfully get the video on client side
Code to send the video over rtp
http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/AVTransmit2.java
code to recieve video over rtp
http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/AVReceive.html#source
My problem is i am not able to play video in AVTransmit2.java.
If i create a player using datasouce, eigther i get player already occupied or a black screen.
please help me running the video on Transmit side as well.
NOTE: i am using web cam for video source
Edited by: qasitouch on Dec 23, 2009 5:55 AM

I am not getting any error on consol, rather video is not displayed on media screen but black rectangle.
On Transmitter
     // Try to create a processor to handle the input media locator
     processor = Manager.createProcessor(ds);
createPlayer(Manager.createCloneableDataSource(ds)); // here i am craeting a player to show the video on transmitter end aswell.
Player code:
     private void createPlayer(DataSource ds) {
          try {
               Player player;
               if(processor!=null)
                    System.out.println("processor: " + processor);
                    player = processor;
               }else{
                    System.out.println("null is processor");
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               JFrame mediaFrame = new JFrame("Camera Screen");
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               mediaFrame.setVisible(true);
               player.realize();
               player.start();
               player.prefetch();
          } catch (NoPlayerException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (CannotRealizeException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (NotRealizedError e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (Exception e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
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Using above code i can create player and a black screen is showing, i am ubable to find, why video is not played in screen.

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Apple IMac 27 has a problem. Random black screen. Over 1 year without any fix

Apple IMac 27 has a problem.
Random black screen.
Over 1 year without any successful fix.
IMac 27 10.8.4 (12E55) - bought in 2010
3.06 GHz Intel Core 2 Duo
4GB 1067 Mhz RAM
Graphics ATI Radeon HD 4670 256 MB
The IMac computer screen goes black randomly but the machine still running beyond.
In order to go back to normal i need to awake the computer by hitting with the pointer a hot corner previously created " sleep mode" ( top left ).
..the black screen would come back after one second again..and then again and then again and then again..with different intervals..sometime 2 seconds after the other, sometime as soon as appears the user login screen.
I took the machine to an Apple Store two times over one year, they opened, cleaned it but they didn't replace anything has they could not understand what they real problem was. I was happy for that because they didn't try to make me spend money on something which was not going to solve my issue for sure.
Last time i kindly asked them to inspect everything meticulously, part by part, i left the machine with them for over 2 months. They couldn't understand why this was happening..after couple of weeks, 5 more machines came in with the same problem.
On some of them., upon request of the client they changed the graphic card but apparently this was not the fix, the problem come back again. Apparently changing the graphic card or the screen or else it didn't solve any problem to anyone. I'm almost thinking to "trough it out of the window"..we all spend money for this machines and i think we need to know if Apple is looking in to this or not.
Lately i tried to do an SMS RESET and PRAM RESET, it feels it got better a little but problem still coming back.
Also, all usb devices are disconnected and the problem still there
Below you will see a copy of the console report. I honestly don't understand much of it as i'm not a computer guy.
27/07/2013 11:03:39.837 WindowServer[119]: Created shield window 0xb3 for display 0x04272d40
27/07/2013 11:03:39.837 WindowServer[119]: device_generate_desktop_screenshot: authw 0x7fad92c79dc0(2000), shield 0x7fad92c34370(2001)
27/07/2013 11:03:39.906 WindowServer[119]: device_generate_lock_screen_screenshot: authw 0x7fad92c79dc0(2000), shield 0x7fad92c34370(2001)
27/07/2013 11:03:41.701 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7fad92c79dc0(2000), shield 0x7fad92c34370(2001), lock state 3
27/07/2013 11:03:41.702 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: err 0x0
27/07/2013 11:03:41.704 WindowServer[119]: Created shield window 0xb4 for display 0x003f003d
27/07/2013 11:03:41.704 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7fad92c79dc0(2002), shield 0x7fad92c34370(2001), lock state 3
27/07/2013 11:03:41.704 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: err 0x0
27/07/2013 11:03:45.186 com.apple.launchd.peruser.502[163]: (com.akamai.client.plist[740]) Bug: 12E55: launchd + 95444 [7DCC9489-2DF5-3807-83FA-EF5666EE8078]: 0xd
27/07/2013 11:03:45.208 com.apple.launchd.peruser.502[163]: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
27/07/2013 11:03:52.117 WindowServer[119]: CGXSetWindowBackgroundBlurRadius: Invalid window 0xffffffff
27/07/2013 11:03:52.118 loginwindow[43]: find_shared_window: WID -1
27/07/2013 11:03:52.118 loginwindow[43]: CGSGetWindowTags: Invalid window 0xffffffff
27/07/2013 11:03:52.118 loginwindow[43]: find_shared_window: WID -1
27/07/2013 11:03:52.118 loginwindow[43]: CGSSetWindowTags: Invalid window 0xffffffff
27/07/2013 11:03:53.763 WindowServer[119]: Created shield window 0xba for display 0x04272d40
27/07/2013 11:03:53.763 WindowServer[119]: device_generate_desktop_screenshot: authw 0x7fad92c87490(2000), shield 0x7fad92e6eef0(2001)
27/07/2013 11:03:53.838 WindowServer[119]: device_generate_lock_screen_screenshot: authw 0x7fad92c87490(2000), shield 0x7fad92e6eef0(2001)
27/07/2013 11:03:53.880 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7fad92c87490(2000), shield 0x7fad92e6eef0(2001), lock state 3
27/07/2013 11:03:53.880 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: err 0x0
27/07/2013 11:03:53.883 WindowServer[119]: Created shield window 0xbb for display 0x003f003d
27/07/2013 11:03:53.883 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7fad92c87490(2002), shield 0x7fad92e6eef0(2001), lock state 3
27/07/2013 11:03:53.883 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: err 0x0
27/07/2013 11:03:55.209 com.apple.launchd.peruser.502[163]: (com.akamai.client.plist[742]) Bug: 12E55: launchd + 95444 [7DCC9489-2DF5-3807-83FA-EF5666EE8078]: 0xd
27/07/2013 11:03:55.252 com.apple.launchd.peruser.502[163]: (com.akamai.client.plist) Throttling respawn: Will start in 10 seconds
27/07/2013 11:04:04.482 WindowServer[119]: CGXSetWindowBackgroundBlurRadius: Invalid window 0xffffffff
27/07/2013 11:04:04.482 loginwindow[43]: find_shared_window: WID -1
27/07/2013 11:04:04.483 loginwindow[43]: CGSGetWindowTags: Invalid window 0xffffffff
27/07/2013 11:04:04.483 loginwindow[43]: find_shared_window: WID -1
27/07/2013 11:04:04.483 loginwindow[43]: CGSSetWindowTags: Invalid window 0xffffffff
27/07/2013 11:04:04.704 WindowServer[119]: Created shield window 0xbf for display 0x04272d40
27/07/2013 11:04:04.726 WindowServer[119]: device_generate_desktop_screenshot: authw 0x7fad92ebdb20(2000), shield 0x7fad92e6eef0(2001)
27/07/2013 11:04:04.795 WindowServer[119]: device_generate_lock_screen_screenshot: authw 0x7fad92ebdb20(2000), shield 0x7fad92e6eef0(2001)
27/07/2013 11:04:05.245 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7fad92ebdb20(2000), shield 0x7fad92e6eef0(2001), lock state 3
27/07/2013 11:04:05.246 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: err 0x0
27/07/2013 11:04:05.253 com.apple.launchd.peruser.502[163]: (com.akamai.client.plist[744]) Bug: 12E55: launchd + 95444 [7DCC9489-2DF5-3807-83FA-EF5666EE8078]: 0xd
27/07/2013 11:04:05.249 WindowServer[119]: Created shield window 0xc0 for display 0x003f003d
27/07/2013 11:04:05.249 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: releasing authw 0x7fad92ebdb20(2002), shield 0x7fad92e6eef0(2001), lock state 3
27/07/2013 11:04:05.249 WindowServer[119]: handle_will_sleep_auth_and_shield_windows: err 0x0
I'm now thinking to try to take the machine to its original firmware and see if it still does it, does anyone have any sugestion?
I use a lot photoshop and other image software, this computer is essential for my work. For more then one year this issue caused me problems.
Luckly i have a Macbook Pro too and i managed to do some of my work there. At last I was thinking to buy an external screen and attach it to the Macbook pro in order to work on my big images. But who wants to spend money again!!!???? This is not a fixture, this is silly. I wish to have my IMAc working again.
The warranty it's obviously over and this problem happened right after the warranty was over...
I write this post because i'm so tired of this issue and online nothing can be found apart from posts from so many people that have the same problem and no fixture has been found.
The only fixture seams to be to buy a new computer... Ole'!!!..new money flowing in in the cashier!! forget it!!! i would rather change company if apple doesn't respond to this.
For over 10 years i have been a Apple owner..
When this problem appears it's like someone it's playing a joke at you...
Comments welcome..
Thanks

Hi, I've seem to have found out the source of the problem.
The issue is related to heat, and an iMac 27" gets hot pretty fast.
If I boot the iMac straight after first start into Windows 7 I seem to get a lit built-in display at all times. I can also boot OS X first and then into Windows 7 and the built-in screen get lit every time as long as the iMac isn't hot.
Strange thing is that the monitor connected to the display port gets lit every time. So I can only assume that the heat only interfere with output to the built-in LED screen.
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Lion screen sharing over Internet

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I need to be able to see the screen of my client's Mac while I am at home.
Here is what I've done to set up screen sharing:
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Yes, I didn't say Back to My Mac doesn't let you share the screen over the internet - it does. But it requires you to know the password of the iCloud account that is signed in on the client's computer, as I've said. Your client would be nuts to give you that password, as would you be to sign in your iCloud account on his/her machine. That's not an option.
Here's what Apple says about using Back to My Mac:
http://support.apple.com/kb/PH3866
Here's another nice summary:
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