[Vnc2swf-users] Res: playback issues with vnc2swf 0.9.3

[<lfk...@ya...>]

Hi Ian,

Audio in FLV output hasn't been implemented.
Some time ago there were some requests for implementing flv output to pvnc2swf.
I had some spare time so I played with it a bit and managed to make it work.
I sent the modifications to the list to check if that was what they wanted.
Yusuke included it in a new release some time after that.
The flv format allows two types of encoding.  One is for video in general, used by YouTube.
The other was designed for screen recording/playback.  That's the one pvnc2swf uses. And that's why some people
complained that the flv file generated by pvnc2swf didn't play in some players when using flv codec. The problem is 
that the codec being used didn't implement this encoding format.
I had planned to work in the sound part after making sure the video part was ok.
But nobody said anything about it.  Actually after some time some people complained that it didn't play in some players.
So I ended up losing interest in it.
But if there is interest for this I can at least take a look at it again.

Regards,

Luis Fernando
.


----- Mensagem original ----
De: Ian Ward <ia...@ex...>
Para: General discussion about vnc2swf <vnc...@li...>
Enviadas: Quinta-feira, 3 de Julho de 2008 13:54:17
Assunto: Re: [Vnc2swf-users] playback issues with vnc2swf 0.9.3

Now I've run into something else.  When I convert my .swf file to a .flv
file I lose the audio.  I tried adding the audio before converting, at
the same time, and after converting all with the same result.

Is there something I'm missing or has adding audio to flv files not been
implemented?

(I also tried using mencoder to add the audio, which worked with mplayer
but not with other flash players)

Ian

Ian Ward wrote:
> Hello,
> 
> I have recorded a presentation using vnc2swf and I nam having trouble 
> with playback on some browsers, some of the time.
> 
> I have posted the .swf files here:
> 
> http://excess.org/kernel-walkthrough/2008-06-26-pres/
> http://excess.org/kernel-walkthrough/2008-06-26-code1/
> http://excess.org/kernel-walkthrough/2008-06-26-code2/
> 
> The current issue I'm having is with seeking.  On FF3 the seek bar 
> donesn't appear at all, on Galeon they appear but sometimes don't allow 
> the position to be adjusted properly (they work for me one day, not the 
> next).  Is there anything I'm doing that looks incorrect?
> 
> 
> Some other issues I was able to work around/ignore:
> 
> The first file had major problems after I recorded it: It would stop 
> playing after about 22 minutes, I could seek past but the video would be 
> frozen.  I worked around that issue by reducing the frame rate to 4 
> frames/second (swf-edit -r 4 -R 3 ...)
> 
> The second and third files did not have the same problem but when I 
> tried reducing the frame rate on the third one it would produce a file 
> that was truncated for some reason.
> 
> If I include an <img> in the HTML below the swf file the seek bar would 
> not appear some of the time.  I (partially) worked around that issue by 
> putting the images in separate page and including the video HTML in an 
> <iframe>.
> 
> I seem to get two seek bars when I try to open the above pages in Safari 
> on a Mac (and seeking doesn't work properly).
> 
> The pyvnc2swf script seems to consume more and more memory as it is 
> recording.  This is the reason I broke the presentation up into 3 parts.


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