[h323plus] H264 PLUGIN in H323Plus

Jan Willamowius jan at willamowius.de
Wed Dec 23 06:24:26 EST 2009

Hi Ooi,

would you be able to send us your patches to H323Plus that were
necessary to get your plugin to connect ?
I assume you had to modify at least parts of the capability negotiation.

If we get the OPAL H.264 plugin to work, that will probably also
provide feedback what might go wrong with your plugin.


ooi khai chin wrote:
> Hi All, 
> In my latest status, I able to have the conference with polycom and other softphone using H.264 plugin.
> But I face the problem of delaying (my movement only show on the other endpoint after around 5 seconds in local network). I think this problem occur because of fragmentation of 1 encoded picture that has size greater than 1.4KB to multiple slices, then sent it out.
> Currently, my default frame rate is 10fps. 
> My question is how to solve the delaying problem because I see polycom PVX 8.0.2 and other softphone do not have any delay? 
> Another question, If my default frame rate is 10fps, is it means that  my program will call Codec Encode function 10 times in a second?
> As I know, inside the encode function, every time it will check for remanding frame length for last packet, if exist it repeatably packet it with size less than 1.4KB until finish, then it only start to encode a new frame. 
> So, Let say I have one encoded picture that consist of 10 slices, is it means that I only able to sent one complete picture in 1 second (if my fps=10)?
> Thanks.

Jan Willamowius, jan at willamowius.de, http://www.gnugk.org/

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