Re: [Vnc2swf-users] Res: AssertionError limits recording time

[Ian W. <ia...@ex...>]

If the flv recording mode gets around the object limit you might be able
use the method that worked for me:

http://excess.org/article/2008/07/creating-high-resolution-screencasts-vnc2swf/

Maybe change the "vnc2swf -n -o tutorial.swf .." to "vnc2swf -n -o
tutorial.flv .." instead of converting in the next step?  I record audio
separately and use the flv format because the flash player I use
requires flv.

When I used this method (unmodified) I was able to record more than 80
minutes.  However, it might have worked for me because of the really
basic window manager that the presenter used (less rectangles).

Ian

lfk...@ya... wrote:
> Hi,
> 
> VNC protocol uses rectangles to send screen updates to the client.
> When you record or transform into shape format (not video), vnc2swf
> creates a swf object for each rectangle.  Usually there are many
> rectangles in each screen update when the screen changes often but there
> may be none when the screen is not updated.
> One thing many people don't realize is that any icon or label that
> changes very often (such as network connection icon or even the clock
> with seconds or even msn) and is not related to the recording may be
> increasing the size of the recording and the number of objects created.
> So anything that changes on screen causes a rectangle update.  The size
> of the rectangle depends on the area changed. It the small areas far
> apart change, there will be two rectangle updates.  If they are close,
> there may be just one.
> I suggest removing icons that are not necessary while recording.
> What I want to say is that frame count is not the only limiting factor.
> I think that object count is even more important and it is probably
> what's been limiting the recordings.
> You could try converting to video format, or even to flv (audio not
> supported yet).
> They won't have the object count limit (I think).
> Good luck!
> 
> Luis Fernando
> 
> 
> ----- Mensagem original ----
> De: Nitin Chandrachoodan <ni...@ee...>
> Para: vnc...@li...
> Enviadas: Quinta-feira, 21 de Agosto de 2008 1:19:54
> Assunto: [Vnc2swf-users] AssertionError limits recording time
> 
> Hello,
> 
> I am using pyvnc2swf 0.9.2 (from Debian testing) to record lectures in
> class (I write on a tablet using Xournal in VNC and record the VNC
> session along with audio using the -S option).
> 
> After about 30-45 minutes, the program crashes with an error
> 
>   File "/usr/share/pyvnc2swf/swf.py", line 784, in newid
>     assert self.objid < 65536, 'the number of objects exceeded the limit!'
> AssertionError: the number of objects exceeded the limit!
> 
> I tried reducing the framerate as suggested in other messages, but
> even with a framerate of 3 it still crashed before the end of the
> lecture (<50 minutes).
> 
> I then tried recording to .vnc format, and it records the whole
> lecture, but if I try converting to swf with vnc2swf-edit.py, it again
> crashes with the same AssertionError.
> 
> One of the previous messages mentioned a maximum of 16000 frames,
> which should still give > 5000s at 3fps. Is the above error to do with
> frames, or are the VNC changes recorded as objects, which would maybe
> make it crash if I wrote too much in one session?
> 
> Thanks,
> 
> Nitin
> 
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great
> prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> <http://moblin-contest.org/redirect.php?banner_id=100&url=/>
> _______________________________________________
> Vnc2swf-users mailing list
> Vnc...@li...
> <mailto:Vnc...@li...>
> https://lists.sourceforge.net/lists/listinfo/vnc2swf-users
> 
> ------------------------------------------------------------------------
> Novos endereços, o Yahoo! que você conhece. Crie um email novo
> <http://br.rd.yahoo.com/mail/taglines/mail/*http://br.new.mail.yahoo.com/addresses>
> com a sua cara @ymail.com ou @rocketmail.com.
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Vnc2swf-users mailing list
> Vnc...@li...
> https://lists.sourceforge.net/lists/listinfo/vnc2swf-users