diff --git a/k3b-21.12.2-ffmpeg-5.0.patch b/k3b-21.12.2-ffmpeg-5.0.patch
new file mode 100644
index 0000000..c2be65a
--- /dev/null
+++ b/k3b-21.12.2-ffmpeg-5.0.patch
@@ -0,0 +1,72 @@
+diff -up k3b-21.12.1/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp.omv~ k3b-21.12.1/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp
+--- k3b-21.12.1/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp.omv~	2022-01-17 19:44:11.314744839 +0100
++++ k3b-21.12.1/plugins/decoder/ffmpeg/k3bffmpegwrapper.cpp	2022-01-17 19:55:07.045724184 +0100
+@@ -38,7 +38,20 @@ extern "C" {
+ #include <math.h>
+ 
+ 
++#if LIBAVCODEC_VERSION_MAJOR < 59
+ #define FFMPEG_CODEC(s) (s->codec)
++#else
++static QMap<AVStream*,AVCodecContext*> k3b_codec_contexts;
++static inline AVCodecContext *FFMPEG_CODEC(AVStream *s) {
++	if(!k3b_codec_contexts.contains(s)) {
++		const AVCodec *codec = avcodec_find_decoder(s->codecpar->codec_id);
++		AVCodecContext *ctx = avcodec_alloc_context3(codec);
++		avcodec_parameters_to_context(ctx, s->codecpar);
++		k3b_codec_contexts.insert(s, ctx);
++	}
++	return k3b_codec_contexts.value(s);
++}
++#endif
+ 
+ #ifndef HAVE_FFMPEG_AVFORMAT_OPEN_INPUT
+ //      this works because the parameters/options are not used
+@@ -70,7 +83,7 @@ class K3bFFMpegFile::Private
+ {
+ public:
+     ::AVFormatContext* formatContext;
+-    ::AVCodec* codec;
++    const ::AVCodec* codec;
+     ::AVStream *audio_stream;
+ 
+     K3b::Msf length;
+@@ -320,11 +333,28 @@ int K3bFFMpegFile::fillOutputBuffer()
+         }
+ 
+         int gotFrame = 0;
++#if LIBAVCODEC_VERSION_MAJOR < 59
+         int len = ::avcodec_decode_audio4(
+             FFMPEG_CODEC(d->audio_stream),
+             d->frame,
+             &gotFrame,
+             &d->packet );
++#else
++        int ret = ::avcodec_receive_frame(
++            FFMPEG_CODEC(d->audio_stream),
++            d->frame);
++
++        gotFrame = (ret == 0);
++
++        ret = avcodec_send_packet(
++            FFMPEG_CODEC(d->audio_stream),
++            &d->packet );
++        if (ret < 0) {
++            qDebug() << "(K3bFFMpegFile) decoding failed for " << m_filename;
++            return -1;
++        }
++        int len = d->packet.size;
++#endif
+ 
+         if( d->packetSize <= 0 || len < 0 )
+             ::av_packet_unref( &d->packet );
+@@ -393,7 +423,9 @@ bool K3bFFMpegFile::seek( const K3b::Msf
+ 
+ K3bFFMpegWrapper::K3bFFMpegWrapper()
+ {
++#if LIBAVCODEC_VERSION_MAJOR < 59
+     ::av_register_all();
++#endif
+ }
+ 
+ 
diff --git a/k3b.spec b/k3b.spec
index fbc1ca6..96216d6 100644
--- a/k3b.spec
+++ b/k3b.spec
@@ -1,7 +1,7 @@
 %define        dirver %(echo %version | sed "s,alpha.*,,;s,rc.*,,")
 %define        pkgver %(echo %version | sed "s|[a-z]||")
 Name:          k3b
-Version:       21.12.1
+Version:       21.12.2
 Release:       1mamba
 Summary:       The CD/DVD/Blu-Ray Creator for KDE
 License:       GPL
@@ -15,6 +15,7 @@ Patch0:        %{name}-1.0.4-configure_ffmpeg.patch
 Patch1:        k3b-2.0.2-ffmpeg.patch
 Patch2:        k3b-2.0.3-disable-lsof-check.patch
 Patch3:        k3b-2.0.3a-CMakeLists.patch
+Patch4:        k3b-21.12.2-ffmpeg-5.0.patch
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libQt5WebKit-devel
@@ -136,6 +137,7 @@ This package contains static libraries and header files needed for development.
 #%patch1 -p1
 %patch2 -p1
 #%patch3 -p1
+%patch4 -p1 -b .ffmpeg-5.0
 
 #rm -f doc/*/CMakeLists.txt
 
@@ -216,6 +218,9 @@ exit 0
 %doc ChangeLog
 
 %changelog
+* Sun Feb 06 2022 Automatic Build System <autodist@mambasoft.it> 21.12.2-1mamba
+- automatic version update by autodist
+
 * Thu Jan 06 2022 Automatic Build System <autodist@mambasoft.it> 21.12.1-1mamba
 - automatic version update by autodist