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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] media-libs/libebur128-1.2.6-r1:0/1::gentoo  USE="-test" 26 KiB

Total: 1 package (1 new), Size of downloads: 26 KiB