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[Linphone-developers] h264 codec doesn't work due to too low number of "

From: Gerhard Stengel
Subject: [Linphone-developers] h264 codec doesn't work due to too low number of "slices" in ffmpeg
Date: Mon, 6 Jun 2011 22:45:48 +0200
User-agent: KMail/1.13.7 (Linux/; KDE/4.6.3; x86_64; ; )


I had the problem that after a few seconds all my h264 calls with Bria 3.2 on 
the other end terminated issuing 
the message that the define MAX_SLICES in libavcodec was too small. I patched 
ffmpeg by increasing MAX_SLICES 
in libavcodec/h264.h from 16 to 32 and it works again.
I wonder a bit why ffmpeg contains an inappropriate default value for this 
define. Is the problem I just 
described commonly seen or does it just hit me? Or maybe Bria uses too may 

Do you think it's worth filing a but report at the ffmpeg folks? And is 32 
enough or may it even be that the 
next power of 2, means 64 is needed?
I'm using ffmpeg (git dated on 20110604) from Packman on openSUSE 11.4, x86_64, 
video resolution is CIF.



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