These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.96 s (backtrack: 0/20).

[ebuild  N     ] media-libs/openh264-2.6.0:0/8::gentoo  USE="plugin -test -utils" CPU_FLAGS_X86="avx2" 58900 KiB

Total: 1 package (1 new), Size of downloads: 58900 KiB