--- mediastreamer-2.16.1/configure.ac~	2017-06-23 10:52:57.000000000 +0200
+++ mediastreamer-2.16.1/configure.ac	2018-09-26 12:03:38.918658108 +0200
@@ -1311,7 +1311,6 @@ AC_SUBST(MS_PUBLIC_CFLAGS)
 
 AC_CONFIG_FILES(
 	Makefile
-	po/Makefile.in
 	m4/Makefile
 	include/Makefile
 	include/mediastreamer2/Makefile
--- mediastreamer-2.16.1/configure.ac~	2018-09-26 12:17:00.000000000 +0200
+++ mediastreamer-2.16.1/configure.ac	2018-09-26 12:53:27.045356783 +0200
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT([mediastreamer],[2.15.1])
+AC_INIT([mediastreamer],[4.5.22])
 
 AC_MSG_NOTICE([$PACKAGE_NAME-$PACKAGE_VERSION		A mediastreaming library for telephony application.])
 AC_MSG_NOTICE([licensed under the terms of the General Public License (GPL)])
--- mediastreamer2-4.5.22/src/Makefile.am.orig	2021-06-24 23:55:04.000000000 +0200
+++ mediastreamer2-4.5.22/src/Makefile.am	2021-07-05 18:00:26.701108988 +0200
@@ -83,6 +83,7 @@ libmediastreamer_base_la_SOURCES=	base/m
 					base/mswebcam.c \
 					base/mtu.c \
 					base/msasync.c \
+					utils/box-plot.c \
 					otherfilters/void.c \
 					otherfilters/itc.c
 libmediastreamer_voip_la_SOURCES=
@@ -118,6 +119,8 @@ libmediastreamer_voip_la_SOURCES+=	voip/
 					voip/bandwidthcontroller.c \
 					crypto/zrtp.c \
 					voip/stun.c \
+					voip/offeranswer.c \
+					voip/turn_tcp.cpp \
 					crypto/ms_srtp.c \
 					crypto/dtls_srtp.c \
 					voip/msiframerequestslimiter.c \
@@ -153,6 +156,8 @@ libmediastreamer_voip_la_SOURCES+=	audio
 					utils/g722.h \
 					utils/g722_decode.c \
 					utils/g722_encode.c \
+					utils/filter-wrapper/decoding-filter-wrapper.cpp \
+					utils/filter-wrapper/encoding-filter-wrapper.cpp \
 					audiofilters/msg722.c \
 					audiofilters/l16.c \
 					audiofilters/genericplc.h \
@@ -258,7 +263,7 @@ if BUILD_V4L2
 libmediastreamer_voip_la_SOURCES+=	videofilters/msv4l2.c
 endif
 
-if BUILD_WIN32 AND NOT(ENABLE_MICROSOFT_STORE_APP)
+if BUILD_WIN32
 libmediastreamer_voip_la_SOURCES+=	videofilters/drawdib-display.c
 endif
 
@@ -271,17 +276,17 @@ libmediastreamer_voip_la_SOURCES+=	video
 endif
 
 if BUILD_MATROSKA
-libmediastreamer_voip_la_SOURCES+=	videofilters/mkv.c \
-					utils/mkv_reader.c utils/mkv_reader.h
+libmediastreamer_voip_la_SOURCES+=	videofilters/mkv.cpp \
+					utils/mkv_reader.cpp utils/mkv_reader.h
 endif
 
 if BUILD_AVCODEC
 libmediastreamer_voip_la_SOURCES+=	videofilters/videoenc.c \
 					videofilters/videodec.c \
-					utils/swscale.h \
 					utils/ffmpeg-priv.h \
 					utils/ffmpeg-priv.c \
-					videofilters/h264dec.c \
+					utils/jpgloader-ffmpeg.c \
+					videofilters/h264dec.cpp \
 					videofilters/ffmpegjpegwriter.c
 endif
 
@@ -304,20 +309,31 @@ libmediastreamer_voip_la_SOURCES+=	voip/
 					voip/msvideoqualitycontroller.c \
 					voip/msvideo_neon.c \
 					voip/msvideo_neon.h \
-					voip/rfc3984.c \
 					voip/videostarter.c \
 					voip/vp8rtpfmt.c \
 					voip/vp8rtpfmt.h \
 					videofilters/mire.c \
-					videofilters/nowebcam.c videofilters/ffmpegnowebcam.c voip/nowebcam.h \
+					videofilters/nowebcam.c voip/nowebcam.h \
 					videofilters/extdisplay.c \
 					utils/bits_rw.c \
 					utils/x11_helper.c \
 					utils/stream_regulator.c utils/stream_regulator.h \
-					utils/h264utils.c utils/h264utils.h \
 					voip/layouts.c voip/layouts.h \
 					voip/video_preset_high_fps.c
 
+libmediastreamer_voip_la_SOURCES+=	voip/h26x/h26x-encoder-filter.cpp \
+					voip/h26x/h26x-decoder-filter.cpp \
+					voip/h26x/h26x-utils.cpp \
+					voip/h26x/h264-nal-packer.cpp \
+					voip/h26x/h264-nal-unpacker.cpp \
+					voip/h26x/h264-utils.cpp \
+					voip/h26x/h265-nal-packer.cpp \
+					voip/h26x/h265-nal-unpacker.cpp \
+					voip/h26x/h265-utils.cpp \
+					voip/h26x/nal-packer.cpp \
+					voip/h26x/nal-unpacker.cpp \
+					voip/h26x/rfc3984.cpp
+
 if ORTP_ENABLED
 libmediastreamer_voip_la_SOURCES+=	voip/videostream.c
 endif
@@ -469,7 +485,7 @@ endif
 
 AM_OBJCFLAGS=$(AM_CFLAGS)
 
-imgdir=$(datadir)/images/
+imgdir=$(pkgdatadir)/images/
 
 img_DATA=voip/nowebcamCIF.jpg
 
--- mediastreamer2-4.4.2/src/base/msfactory.c.orig	2020-09-24 11:44:00.000000000 +0200
+++ mediastreamer2-4.4.2/src/base/msfactory.c	2020-09-26 18:00:06.215992977 +0200
@@ -236,7 +236,7 @@
 	ms_message("ms_factory_init() done: platform_tags=%s", tags);
 	ms_free(tags);
 
-	obj->image_resources_dir = bctbx_strdup_printf("%s/images", PACKAGE_DATA_DIR);
+	obj->image_resources_dir = bctbx_strdup_printf("%s/mediastreamer/images", PACKAGE_DATA_DIR);
 }