Re: [Linphone-developers] H263 and RFC2190 parsing

[Simon Morlat]

Hi Sven,

Thank you for letting me know about this limitation.
Actually since RFC2190 is deprecated we don't want to invest our free
time in improving compliance to RFC2190.
If you contribute a patch for this we will be pleased to add it to the
main tree. Otherwise we can propose you commercial assistance to solve
this problem.

Best regards,

Simon

Le mercredi 26 mai 2010 à 12:15 +0200, Sven Westergren a écrit :
> Hi all,
> 
>  
> 
> We have been experiencing problems when using mediastreamer2 to call
> some h263 phones (e.g. Visiontech 8808, Tandberg E20) with minor to
> severe artifacts and loads of error printouts from ffmpeg h263
> decoder. After comparing different h263 stream we have come to suspect
> that it’s the handling of the rfc2190 header that is the culprit. In
> the current implementation in videodec.c the SBIT and EBIT fields are
> not handled, so when packets are concatenated before being sent to
> ffmpeg bits that should be ignored/stripped are included.
> 
>  
> 
> Are there any plans to introduce support for SBIT and EBIT in
> mediastreamer2 or is it already handled in some other way that we have
> missed?
> 
>  
> 
> Best regards
> 
> Sven Westergren
> 
> nWise AB
> 
> 
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