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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] media-libs/vidstab-1.1.1-r1::gentoo  USE="openmp -test" CPU_FLAGS_X86="sse2" 79 KiB

Total: 1 package (1 new), Size of downloads: 79 KiB