From bf0e1e33a0954be9a2702c0cc52c87546ac97cfa Mon Sep 17 00:00:00 2001
From: Christoph Willing <chris.willing@linux.com>
Date: Fri, 2 Apr 2021 18:23:08 +1000
Subject: graphics/Blender: Enable build with ffmpeg4

Signed-off-by: Christoph Willing <chris.willing@linux.com>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>
---
 graphics/Blender/Blender.SlackBuild | 10 +++++++---
 graphics/Blender/README             |  4 ++++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/graphics/Blender/Blender.SlackBuild b/graphics/Blender/Blender.SlackBuild
index 4d8d8cb152bf..a8c4ca8b9d87 100644
--- a/graphics/Blender/Blender.SlackBuild
+++ b/graphics/Blender/Blender.SlackBuild
@@ -24,7 +24,7 @@
 
 PRGNAM=Blender
 VERSION=${VERSION:-2.83.8}
-BUILD=${BUILD:-2}
+BUILD=${BUILD:-3}
 TAG=${TAG:-_SBo}
 
 SRCNAM=blender
@@ -88,6 +88,11 @@ rm -rf $SRCNAM-$VERSION
 tar xvf $CWD/$SRCNAM-$VERSION.tar.xz
 cd $SRCNAM-$VERSION
 patch -p0 < $CWD/01_FindEmbree_so.diff
+if [ ${FORCE_FFMPEG4:-no} = "yes" ]; then
+  echo "Force use of ffmpeg4"
+  SLKCFLAGS="$SLKCFLAGS -I/usr/include/ffmpeg4 -L/usr/lib${LIBDIRSUFFIX}/ffmpeg4"
+  sed -i -e "s|\"exitcode=0\"|&,\"LD_LIBRARY_PATH\":\"/usr/lib$LIBDIRSUFFIX/ffmpeg4\"|g" doc/manpage/blender.1.py
+fi
 chown -R root:root .
 find -L . \
  \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
@@ -140,8 +145,7 @@ for bin in $BLENDERBINS ; do
   mv $PKG/usr/bin/$bin $PKG/usr/bin/$bin.bin
   cat <<EOF >$PKG/usr/bin/$bin
 #!/bin/sh
-#export PYTHONPATH=/usr/share/$SRCNAM/$BASE_VERSION/python/lib$LIBDIRSUFFIX/python$PYTHON_VERSION
-export LD_LIBRARY_PATH=/usr/lib$LIBDIRSUFFIX/opencollada
+export LD_LIBRARY_PATH=/usr/lib$LIBDIRSUFFIX/opencollada:/usr/lib$LIBDIRSUFFIX/ffmpeg4
 exec $bin.bin "\$@"
 EOF
   chmod 0755 $PKG/usr/bin/$bin
diff --git a/graphics/Blender/README b/graphics/Blender/README
index aa1613683cbe..e6fe94d6e99b 100644
--- a/graphics/Blender/README
+++ b/graphics/Blender/README
@@ -21,6 +21,10 @@ successful build. The CUDA handling above remains for cases which may:
 Support for embree may be disabled by passing EMBREE=no when building e.g.
     EMBREE=no sh ./Blender.SlackBuild
 
+Support in 14.2 for using SBo's ffmpeg4 SlackBuild may be enabled by
+passing FORCE_FFMPEG4=yes when building e.g.
+    FORCE_FFMPEG4=yes sh ./Blender.SlackBuild
+
 Version 2.83.8 is the last SBo supported version of Blender for building
 from source code in Slackware64-14.2. A more recent compiler (gcc-9.3.1)
 is required for 2.90.x and later blender versions.
-- 
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