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

Calculating dependencies ... done!
Dependency resolution took 1.12 s (backtrack: 0/20).

[ebuild  N     ] media-libs/libogg-1.3.6::gentoo  USE="-static-libs" 430 KiB
[ebuild  N     ] media-libs/alsa-topology-conf-1.2.5.1-r1::gentoo  USE="-verify-sig" 12 KiB
[ebuild  N     ] media-libs/alsa-ucm-conf-1.2.16.1::gentoo  USE="-verify-sig" 83 KiB
[ebuild  N     ] media-libs/alsa-lib-1.2.16.1::gentoo  USE="python -debug -doc -verify-sig" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13 (-python3_15)" 1104 KiB
[ebuild  N     ] dev-perl/MP3-Info-1.260.0-r1::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 134 KiB
[ebuild  N     ] dev-perl/String-ShellQuote-1.40.0-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 7 KiB
[ebuild  N     ] media-libs/opus-1.6.1::gentoo  USE="-custom-modes -debug -deep-plc -doc -dred -hardened -osce -static-libs -test" CPU_FLAGS_X86="sse" 10228 KiB
[ebuild  N     ] app-eselect/eselect-mpg123-0.1-r1::gentoo  0 KiB
[ebuild  N     ] media-libs/libvorbis-1.3.7-r2::gentoo  USE="-static-libs -test" 1176 KiB
[ebuild  N     ] media-libs/libao-1.2.2-r3::gentoo  USE="alsa -mmap -nas -pulseaudio -sndio" 94 KiB
[ebuild  N     ] media-libs/opusfile-0.12-r1::gentoo  USE="float http -doc -fixed-point -static-libs" 461 KiB
[ebuild  N     ] media-sound/mpg123-base-1.33.7::gentoo  USE="alsa ipv6 (-coreaudio) -int-quality -jack -nas -oss -portaudio -pulseaudio -sdl -verify-sig" CPU_FLAGS_X86="sse (-3dnow) (-3dnowext) (-mmx)" 1100 KiB
[ebuild  N     ] media-plugins/mpg123-output-plugins-1.33.7::gentoo  USE="alsa ipv6 (-coreaudio) -int-quality -jack -nas -oss -portaudio -pulseaudio -sdl -verify-sig" CPU_FLAGS_X86="mmx sse -3dnow -3dnowext" 0 KiB
[ebuild  N     ] media-sound/mpg123-1.33.7::gentoo  USE="alsa (-coreaudio) -jack -nas -oss -portaudio -pulseaudio -sdl" 0 KiB
[ebuild  N     ] media-sound/vorbis-tools-1.4.3::gentoo  USE="ogg123 -flac -kate -speex" 1762 KiB
[ebuild  N     ] media-sound/mp32ogg-0.11-r7::gentoo  9 KiB

Total: 16 packages (16 new), Size of downloads: 16596 KiB