diff --git a/devel/ignition-cmake/Makefile b/devel/ignition-cmake/Makefile
index 4bafcd4b27ec..1262b4115505 100644
--- a/devel/ignition-cmake/Makefile
+++ b/devel/ignition-cmake/Makefile
@@ -1,25 +1,37 @@
 PORTNAME=	ignition-cmake
 DISTVERSION=	2.0.0
 CATEGORIES=	devel
 MASTER_SITES=	https://bitbucket.org/${BB_ACCOUNT}/${BB_PROJECT}/get/${BB_COMMIT}.tar.gz?dummy=/
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	CMake modules to be used by the Ignition projects
 WWW=		https://ignitionrobotics.org/home
 
 LICENSE=	APACHE20
 
 USES=		cmake pkgconfig ruby
 
 CMAKE_OFF=	BUILD_TESTING
 
 BB_ACCOUNT=	ignitionrobotics
 BB_PROJECT=	ign-cmake
 BB_COMMIT=	776c2bfe1d18
 
 WRKSRC=		${WRKDIR}/${BB_ACCOUNT}-${BB_PROJECT}-${BB_COMMIT}
 NO_ARCH=	yes
 
 PLIST_SUB+=	CMAKE_IGN_VER=cmake${DISTVERSION:R:R}
 
+post-patch:
+	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
+		${PATCH_WRKSRC}/cmake/FindAVCODEC.cmake
+	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
+		${PATCH_WRKSRC}/cmake/FindAVDEVICE.cmake
+	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
+		${PATCH_WRKSRC}/cmake/FindAVFORMAT.cmake
+	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
+		${PATCH_WRKSRC}/cmake/FindAVUTIL.cmake
+	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
+		${PATCH_WRKSRC}/cmake/FindSWSCALE.cmake
+
 .include <bsd.port.mk>
diff --git a/devel/ignition-cmake/files/patch-cmake_FindAVCODEC.cmake b/devel/ignition-cmake/files/patch-cmake_FindAVCODEC.cmake
new file mode 100644
index 000000000000..4b9304f922f7
--- /dev/null
+++ b/devel/ignition-cmake/files/patch-cmake_FindAVCODEC.cmake
@@ -0,0 +1,8 @@
+--- cmake/FindAVCODEC.cmake.orig	2023-04-24 07:29:13 UTC
++++ cmake/FindAVCODEC.cmake
+@@ -16,4 +16,5 @@
+ ########################################
+ # Find avcodec
+ include(IgnPkgConfig)
++set(CMAKE_PREFIX_PATH "%%LOCALBASE%%/ffmpeg4;%%LOCALBASE%%/ffmpeg4/libexec")
+ ign_pkg_check_modules(AVCODEC libavcodec)
diff --git a/devel/ignition-cmake/files/patch-cmake_FindAVDEVICE.cmake b/devel/ignition-cmake/files/patch-cmake_FindAVDEVICE.cmake
new file mode 100644
index 000000000000..640a2079d5dc
--- /dev/null
+++ b/devel/ignition-cmake/files/patch-cmake_FindAVDEVICE.cmake
@@ -0,0 +1,8 @@
+--- cmake/FindAVDEVICE.cmake.orig	2023-04-24 07:29:47 UTC
++++ cmake/FindAVDEVICE.cmake
+@@ -20,4 +20,5 @@ set(av_minor ${AVDEVICE_FIND_VERSION_MINOR})
+ set(av_patch ${AVDEVICE_FIND_VERSION_PATCH})
+ 
+ include(IgnPkgConfig)
++set(CMAKE_PREFIX_PATH "%%LOCALBASE%%/ffmpeg4;%%LOCALBASE%%/ffmpeg4/libexec")
+ ign_pkg_check_modules(AVDEVICE "libavdevice >= ${av_major}.${av_minor}.${av_patch}")
diff --git a/devel/ignition-cmake/files/patch-cmake_FindAVFORMAT.cmake b/devel/ignition-cmake/files/patch-cmake_FindAVFORMAT.cmake
new file mode 100644
index 000000000000..60567157f9e8
--- /dev/null
+++ b/devel/ignition-cmake/files/patch-cmake_FindAVFORMAT.cmake
@@ -0,0 +1,8 @@
+--- cmake/FindAVFORMAT.cmake.orig	2023-04-24 07:30:02 UTC
++++ cmake/FindAVFORMAT.cmake
+@@ -16,4 +16,5 @@
+ ########################################
+ # Find AV format
+ include(IgnPkgConfig)
++set(CMAKE_PREFIX_PATH "%%LOCALBASE%%/ffmpeg4;%%LOCALBASE%%/ffmpeg4/libexec")
+ ign_pkg_check_modules(AVFORMAT libavformat)
diff --git a/devel/ignition-cmake/files/patch-cmake_FindAVUTIL.cmake b/devel/ignition-cmake/files/patch-cmake_FindAVUTIL.cmake
new file mode 100644
index 000000000000..eaacfdf00a22
--- /dev/null
+++ b/devel/ignition-cmake/files/patch-cmake_FindAVUTIL.cmake
@@ -0,0 +1,8 @@
+--- cmake/FindAVUTIL.cmake.orig	2023-04-24 07:30:38 UTC
++++ cmake/FindAVUTIL.cmake
+@@ -16,4 +16,5 @@
+ ########################################
+ # Find avutil
+ include(IgnPkgConfig)
++set(CMAKE_PREFIX_PATH "%%LOCALBASE%%/ffmpeg4;%%LOCALBASE%%/ffmpeg4/libexec")
+ ign_pkg_check_modules(AVUTIL libavutil)
diff --git a/devel/ignition-cmake/files/patch-cmake_FindSWSCALE.cmake b/devel/ignition-cmake/files/patch-cmake_FindSWSCALE.cmake
new file mode 100644
index 000000000000..79c83b834b34
--- /dev/null
+++ b/devel/ignition-cmake/files/patch-cmake_FindSWSCALE.cmake
@@ -0,0 +1,8 @@
+--- cmake/FindSWSCALE.cmake.orig	2023-04-25 18:35:25 UTC
++++ cmake/FindSWSCALE.cmake
+@@ -16,4 +16,5 @@
+ ########################################
+ # Find libswscale format
+ include(IgnPkgConfig)
++set(CMAKE_PREFIX_PATH "%%LOCALBASE%%/ffmpeg4;%%LOCALBASE%%/ffmpeg4/libexec")
+ ign_pkg_check_modules(SWSCALE libswscale)