Install this version:
emerge -a =kde-apps/ffmpegthumbs-26.04.0
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =kde-apps/ffmpegthumbs-26.04.0
Or alternatively:
emerge --autounmask-write -a =kde-apps/ffmpegthumbs-26.04.0
# Copyright 1999-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
KFMIN=6.22.0
QTMIN=6.10.1
inherit ecm gear.kde.org
DESCRIPTION="FFmpeg based thumbnail generator for video files"
LICENSE="GPL-2+"
SLOT="6"
KEYWORDS="~amd64 ~arm64 ~loong ~ppc64 ~riscv ~x86"
IUSE=""
DEPEND="
>=dev-qt/qtbase-${QTMIN}:6[gui]
>=kde-frameworks/kconfig-${KFMIN}:6
>=kde-frameworks/kio-${KFMIN}:6
>=media-video/ffmpeg-6.1:0=
"
RDEPEND="${DEPEND}
!<kde-apps/ffmpegthumbs-23.08.5-r1:5
!kde-apps/ffmpegthumbs-common
"
BDEPEND="
>=kde-frameworks/kcoreaddons-${KFMIN}:6
virtual/pkgconfig
"
>=dev-qt/qtbase-6.10.1:6[gui] >=kde-frameworks/kconfig-6.22.0:6 >=kde-frameworks/kio-:6 >=media-video/ffmpeg-6.1:0=
>=dev-qt/qtbase-6.10.1:6[gui] >=kde-frameworks/kconfig-6.22.0:6 >=kde-frameworks/kio-:6 >=media-video/ffmpeg-6.1:0= !<kde-apps/ffmpegthumbs-23.08.5-r1:5 !kde-apps/ffmpegthumbs-common
>=kde-frameworks/kcoreaddons-6.22.0:6 virtual/pkgconfig