[Freeswitch-users] [ERR] switch_core_video.c:2879 This function is not available, libpng not installed

Michael Jerris mike at jerris.com
Tue Oct 10 19:26:13 UTC 2017

its trying to read a png file for something.  are you sure you don’t have any of the banner png’s or mute images or avatar stuff configured?  that being said, we should still work w/ libpng 1.5, just don’t support alpha channel if you are using the version of libpng that doesn’t support it.

> On Oct 10, 2017, at 5:40 AM, Akshaya j <akshaya18j at gmail.com> wrote:
> Hi team.!
> In Centos7 with libpng 1.5 version 
> When I dial conference number I can witness an ERR 
> [ERR] switch_core_video.c:2879 This function is not available, libpng not installed... 
> Conference call doesn't use video its just audio call.. The calls works properly but this error bothers me of what the problem is? 
> Someone please help in fixing this. 
> I run another FS setup in Debian machine where there s no such error as libpng 1.6 version is available 
> Note: 
> libpng is up to date in my centos 7(libpng1.5 which is what available for centos7) but freeswitch needs libpng 1.6, I guess.
> Thanks in advance
> Akshaya J
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