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

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/tinyxml2-11.0.0:0/11::gentoo  USE="-test" 628 KiB
[ebuild  N     ] media-libs/libzen-0.4.41::gentoo  USE="-doc -static-libs" 116 KiB
[ebuild  N     ] media-libs/libmediainfo-26.05::gentoo  USE="-curl -doc -mms" 2261 KiB

Total: 3 packages (3 new), Size of downloads: 3005 KiB