Re: [Linphone-developers] Problem with large video packets

[Michael Frey]

Uwe,

Thanks for the tip.  This helped me.  The other thing I needed to  
change as well was the rtp_payload_size of the encoder context.  It  
was way too small.  Video working great now!!!

Michael

On Nov 3, 2005, at 6:48 AM, Uwe Zipf wrote:

> Hello,
>
> while experimenting with the video feature of linphone1.1.0
> i get errors in the displayed image if the source is an
> arm system (running linphonec with SDL usage removed). There
> are many errors from the libavcodec about incorrect frame headers
> and illegal vlc codes.
> It works well between two PCs.
> The only difference to a stream originating from the x86 systems
> is the size of the RTP packets. It seems that the coding on the
> arm is less efficient.
>
> The source of the problem is the definition of MAX_RTP_SIZE to
> 5000 in the videostream.c. It is used to set the buffersize for
> the incoming packets. If these get to big, the UDP packets are
> cut off if bigger and the frame gets damaged.
>
> I think the receiveable size should be the same as the sendable.
> There is a definition for UDP_MAX_SIZE 65536 in rtp.h of the
> oRTP library.
>
>
> Best regards,
> Uwe Zipf
>
>
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