media-video/kaffeine: Force QT_QPA_PLATFORM=xcb to fix video glitches

... in Wayland sessions.

See also:
https://invent.kde.org/multimedia/kaffeine/-/merge_requests/14

Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

media-video/kaffeine/files/kaffeine-2.1.0_pre20241125-force-xcb-platform.patch

@@ -0,0 +1,30 @@
+From 79ded89ab9e477ce93e71d6184104ff273553ae9 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ball=C3=B3=20Gy=C3=B6rgy?= <ballogyor@gmail.com>
+Date: Tue, 25 Feb 2025 13:39:06 +0100
+Subject: [PATCH] Force X11
+
+VLC does not support video playback on Wayland.
+
+BUG: 397594
+---
+ src/main.cpp | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/main.cpp b/src/main.cpp
+index a7e0efa6..185a6b72 100644
+--- a/src/main.cpp
++++ b/src/main.cpp
+@@ -211,6 +211,10 @@ int main(int argc, char *argv[])
+ {
+ 	qInstallMessageHandler(verboseMessageHandler);
+ 
++#if LIBVLC_VERSION_MAJOR <= 3
++	qputenv("QT_QPA_PLATFORM", "xcb");
++#endif
++
+ 	KLocalizedString::setApplicationDomain("kaffeine");
+ 
+ 	KaffeineApplication app(argc, argv);
+-- 
+GitLab
+

media-video/kaffeine/kaffeine-2.1.0_pre20241125-r1.ebuild

@@ -0,0 +1,56 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+ECM_HANDBOOK="optional"
+KDE_ORG_COMMIT=45fd36276dcfba243303d44e0b18a8aa9b05a9a9
+KFMIN=6.5.0
+QTMIN=6.7.2
+inherit ecm kde.org
+
+DESCRIPTION="Media player with digital TV support by KDE"
+HOMEPAGE="https://apps.kde.org/kaffeine/ https://userbase.kde.org/Kaffeine"
+
+LICENSE="GPL-2+ handbook? ( FDL-1.3 )"
+SLOT="0"
+KEYWORDS="amd64 ~x86"
+IUSE="dvb"
+
+DEPEND="
+	>=dev-qt/qtbase-${QTMIN}:6[dbus,gui,network,sql,widgets,xml]
+	>=kde-frameworks/kconfig-${KFMIN}:6
+	>=kde-frameworks/kconfigwidgets-${KFMIN}:6
+	>=kde-frameworks/kcoreaddons-${KFMIN}:6
+	>=kde-frameworks/kdbusaddons-${KFMIN}:6
+	>=kde-frameworks/ki18n-${KFMIN}:6
+	>=kde-frameworks/kio-${KFMIN}:6
+	>=kde-frameworks/kwidgetsaddons-${KFMIN}:6
+	>=kde-frameworks/kwindowsystem-${KFMIN}:6[X]
+	>=kde-frameworks/kxmlgui-${KFMIN}:6
+	>=kde-frameworks/solid-${KFMIN}:6
+	media-video/vlc[X]
+	dvb? ( media-libs/libv4l[dvb] )
+"
+RDEPEND="${DEPEND}
+	!${CATEGORY}/${PN}:5
+"
+BDEPEND="
+	sys-devel/gettext
+	virtual/pkgconfig
+"
+
+DOCS=( Changelog NOTES README.md )
+
+# Upstream MR: https://invent.kde.org/multimedia/kaffeine/-/merge_requests/14
+PATCHES=( "${FILESDIR}/${P}-force-xcb-platform.patch" )
+
+src_configure() {
+	# tools working on $HOME directory for a local git checkout
+	local mycmakeargs=(
+		-DBUILD_TOOLS=OFF
+		$(cmake_use_find_package dvb Libdvbv5)
+	)
+
+	ecm_src_configure
+}