Hi @luke,
From what I understand, the fix will be to put libva as a requirement on the rpm so the end user know that it’s required to run the app properly since it’s available in the centos official repository.
If you can’t install it through yum install, maybe you can dowload it from here: https://centos.pkgs.org/7/centos-x86_64/libva-1.8.3-1.el7.x86_64.rpm.html (binary package) and install it with yum localinstall.
Thanks,
Kerby