ISL Recording Player 1.3.0 for Windows (2009-07-17)


General Information

On 17th July 2009 we have released:

  • ISL Recording Player 1.3.0 (2009-07-17) win32

Upgrading to new version

Hosted Service

Please visit and start ISL Recording Player.

Direct links:

Server License

Upgrades are free of charge for ISL Online Server License users with active Extended Support Service. ISL Online Server License users with expired Extended Support Service are welcome to purchase Extended Support Service in order to gain access to the newly released ISL Online Server system. In case you have extended ESS you will need to create new license file and upload it to your ISL Conference Proxy server.

Quick Instructions for users with ISL Conference Proxy 3.1 installed

  1. open web administration of ISL Conference Proxy http://localhost:7615/conf
  2. login using admin account
  3. click Online update link in left navigation
  4. click Apply changes if you have automatic install


#304662: ISL Recording Player (Windows - All): playback slider control [New feature] More


Added slider movement by clicking and dragging. Backward and forward of playback.

#304666: ISL Recording Player (Windows - All): use threads for playback and export [New feature] More


Implement threads to achieve better performance of rendering at playback and exporting.

#304668: ISL Recording Player (Windows - All): add video stream for playing & exporting [New feature] More


Add Video stream (VNC-Desktop and Chat stream already done) in playing and exporting. Added some settings too in "Settings" menu.

#304675: ISL Recording Player (Windows - All): add dynamic panels for Desktop, Video, Chat [New feature] More


Use DockWidgets to easily change the layout of streams at playing and exporting too. Resizing, docking, closing of dock panels available.

#304681: ISL Recording Player (Windows - All): add and update menus: About, Properties, Settings [New feature] More


-Add "About" menu with basic information about ISL Recording Player.

-Add "Properties (Recording info)" menu with information about currently opened recording like: "file location", "channels", "number of saved states",...

-Update "Settings" menu with "Export" tab, where layout of exported recording will be chosen, and "Advanced" tab, where Player's resources like "Max System RAM used for checkpoints" and "Time interval of saving states" can be seen.

#304685: ISL Recording Player (Windows - All): add playing speed control [New feature] More


Playing speed can be set by right-click on PlayerControlWidget(Play/Pause/Stop buttons).

5 different speed is available:

-Very slow playback (0.2x)

-Slow playback (0.5x)

-Normal playback (1x)

-Fast playback (2x)

-Very fast playback (5x)

#304700: ISL Recording Player (Windows - All): optimization: save states/checkpoints while playing [New feature] More


Optimize speed of loading playback state when jumping to different time positions with slider. State (checkpoint, restorepoint) consists of VNC-Desktop, Chat and Video stream. Default time interval of saving states is 3000 ms, and can be seen in menu "Settings->Advanced".

Because this states reserve a lot of resources (system RAM), compromises have to be made. Density function of checkpoints in a period of time is used and compared with "ideal" function. Ideal density of checkpoints is large if close to the current playback-time and becomes smaller if we look far from the current position. This is because of the nature of human watching of the recordings: Most of people move slider only a little far from the current time position. Saved states (checkpoints) are then deleted where needed, according to the density function mentioned above.

#304701: ISL Recording Player (Windows - All): bug in ChatRenderer if a line of text is too long [Defect fix] More


Fixed bug at chat stream, now if line of text in Chat stream is too long, writing is done in new line.

#304707: ISL Recording Player (Windows - All): find different recordings from the same session... [New feature] More


Session_id and time_when_recorded lines have been added to the header of ISL Recording (.isr files). This 2 lines are compared to find, if there exists (in the same folder) any recording that was recorded (in same session) after currently opened recording. If yes "NEXT" button in "Player Control" panel becomes clickable. Beside "NEXT" button, there is "PREVIOUS" button added too at the "Player Control". If we play recording till the end and next recording exists, then a question message-box is displayed to automatically play the next available recording.

#326558: ISL Recording Player (Windows - All): Add Fullscreen Interface view [New feature] More


Fullscreen Interface view avaliable in menubar. Maximizes the window and hides the frame.

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