# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI = 8
inherit gstreamer-meson
MY_PN = "gstreamer-vaapi"
DESCRIPTION = "Hardware accelerated video decoding through VA-API plugin for GStreamer"
HOMEPAGE = "https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi"
SRC_URI = " https://gstreamer.freedesktop.org/src/ ${ MY_PN } / ${ MY_PN } - ${ PV } .tar.xz "
LICENSE = "LGPL-2.1+"
SLOT = "1.0"
KEYWORDS = "amd64 arm64 ~loong ppc64 ~riscv x86"
IUSE = "+drm +egl +gles2 opengl wayland +X" # Keep default enabled IUSE in sync with gst-plugins-base and libva
# gst-vaapi configure is based around GL platform mainly, unlike gst-plugins-bad that goes by GL API mainly; for less surprises,
# we design gst-vaapi ebuild in terms of GL API as main choice as well, meaning that USE opengl and/or gles2 is required to
# enable opengl support at all and choices get chained from there.
# One or multiple video output are required: drm, x11, glx, egl and/or wayland;
# but GL API is our main trigger, thus USE=egl should be ineffective if neither gles2 or opengl is enabled;
# So "|| ( drm egl opengl wayland X )" would be wrong, because egl isn't built with USE="egl -opengl -gles2", ending up with no video outputs.
# As we ensure at least one working GL output with other REQUIRED_USE, we can put gles2/opengl in REQUIRED_USE instead of egl, solving the issue.
# gles2 API only supported windowing system (on linux) is EGL, so require it
# opengl API only supported windowing systems (on linux) are EGL and GLX, so require one of them (glx is enabled with USE="opengl X")
REQUIRED_USE = "
|| ( drm gles2 opengl wayland X )
gles2? ( egl )
opengl? ( || ( egl X ) )
wayland? ( drm )
"
# glx doesn't require libva-glx (libva[opengl]) afaics, only by tests/test-display.c
# USE flag behavior:
# 'drm' enables vaapi drm support
# 'egl' enables EGL platform support (but only if also 'opengl||gles2')
# - 'egl' is exposed as a USE flag mainly to get EGL support instead of or in addition to GLX support with desktop GL while keeping it optional for pure GLX cases;
# it's always required with USE=gles2, thus USE="gles2 opengl X" will require and build desktop GL EGL platform support as well on top of GLX, which doesn't add extra deps at that point.
# 'gles2' enables GLESv2 or GLESv3 based GL API support
# 'opengl' enables desktop OpenGL based GL API support
# 'wayland' enables non-GL Wayland support; wayland EGL support when combined with 'egl' (but only if also 'opengl||gles2')
# 'X' enables non-GL X support; GLX support when combined with 'opengl'
# gst-plugins-bad still needed for codecparsers (GL libraries moved to -base); checked for 1.14 (recheck for 1.16)
GST_REQ = " ${ PV } "
GL_DEPS = "
>= media-libs/gst-plugins-base-${ GST_REQ } :${ SLOT } [ egl?,gles2?,opengl?,wayland?,X?]
media-libs/mesa[ gles2?,egl( +) ?,X?,${ MULTILIB_USEDEP } ]
"
RDEPEND = "
>= media-libs/gst-plugins-base-${ GST_REQ } :${ SLOT } [ ${ MULTILIB_USEDEP } ]
>= media-libs/gst-plugins-bad-${ GST_REQ } :${ SLOT } [ ${ MULTILIB_USEDEP } ]
>= media-libs/libva-1.10.0:= [ drm( +) ?,wayland?,X?,${ MULTILIB_USEDEP } ]
drm? (
>= virtual/libudev-208:= [ ${ MULTILIB_USEDEP } ]
>= x11-libs/libdrm-2.4.98[ ${ MULTILIB_USEDEP } ]
)
gles2? ( ${ GL_DEPS } )
opengl? ( ${ GL_DEPS } )
wayland? ( >= dev-libs/wayland-1.11.0[ ${ MULTILIB_USEDEP } ] )
X? (
>= x11-libs/libX11-1.6.2[ ${ MULTILIB_USEDEP } ]
>= x11-libs/libXrandr-1.4.2[ ${ MULTILIB_USEDEP } ]
x11-libs/libXrender[ ${ MULTILIB_USEDEP } ] )
"
DEPEND = " ${ RDEPEND } "
S = " ${ WORKDIR } / ${ MY_PN } - ${ PV } "
# FIXME: "Failed to create vaapipostproc element"
RESTRICT = "test"
multilib_src_configure( ) {
GST_PLUGINS_NOAUTO = "wayland"
local emesonargs = (
-Dencoders= enabled
$( meson_feature drm)
$( meson_feature X x11)
$( meson_feature wayland)
)
if use opengl || use gles2; then
emesonargs += ( $( meson_feature egl) )
else
emesonargs += ( -Degl= disabled )
fi
if use opengl && use X; then
emesonargs += ( -Dglx= enabled )
else
emesonargs += ( -Dglx= disabled )
fi
# Workaround EGL/eglplatform.h being built with X11 present
use X || export CFLAGS = " ${ CFLAGS } -DEGL_NO_X11 "
gstreamer_multilib_src_configure
}