Missing Kaltura mencoder and

Hi all,

I am trying to install on my AWS Red Hat 7 EC2. After I rum "yum clean all" and then "yum install kaltura-server", this is the error I get at the end of the installation.

--> Finished Dependency Resolution
Error: Package: kaltura-mencoder-3.4.6-9.x86_64 (Kaltura)
Requires: liboil-0.3.so.0
Error: Package: kaltura-base-11.18.0-7.noarch (Kaltura-noarch)
Requires: php-mbstring

I have tried to research this issue but was not able to find a clear response. Any help would be greatly appreciated. Thank you!