media-sound/rsgain: add v3.5

Really Simple GAIN scans audio files recursivley for a given directory
while calculating and tagging replay gain values accoringly.

rsgain is based on loudgain.

Signed-off-by: Richard Fröhning <misanthropos@gmx.net>

media-sound/rsgain/Manifest

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+DIST rsgain-3.5-source.tar.xz 50660 BLAKE2B 18a7d5b1892f1df8fbdfaddf289564540eb706638bc36d5822f79ca672ef2b0cbcc7a246567a4930aa6fa9da44598e69eed01ed3d62ebde98a26c375cae8d057 SHA512 aa870ffcbb333c6b604ee45593e4976c4aca39af7a88f0517b470a3d29c7bc74aeb7bcc8a68f5604aee74114f9751c64d4b5e55711e1340ed2f682ae641d29af

media-sound/rsgain/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person" proxied="yes">
+		<email>misanthropos@gmx.net</email>
+		<name>Richard Fröhning</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>sound@gentoo.org</email>
+		<name>Gentoo Sound Project</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">complexlogic/rsgain</remote-id>
+	</upstream>
+</pkgmetadata>

media-sound/rsgain/rsgain-3.5.ebuild

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+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake
+
+DESCRIPTION="Really Simple replay Gain calculator for tagging audio files"
+HOMEPAGE="https://github.com/complexlogic/rsgain"
+SRC_URI="https://github.com/complexlogic/rsgain/releases/download/v${PV}/${P}-source.tar.xz"
+
+LICENSE="BSD BSD-2"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~ppc64 ~riscv ~sparc ~x86"
+
+RDEPEND="
+        dev-libs/libfmt
+        media-libs/libebur128
+        media-libs/libogg
+        media-libs/libvorbis
+        media-libs/taglib
+        media-video/ffmpeg
+"
+
+DEPEND="${RDEPEND}"
+
+src_prepare() {
+        cmake_src_prepare
+}
+
+src_configure() {
+        cmake_src_configure
+}
+
+src_install() {
+        cmake_src_install
+}