diff --git a/srcpkgs/arcan/patches/ffmpeg4.patch b/srcpkgs/arcan/patches/ffmpeg4.patch
new file mode 100644
index 00000000000..27b94424f92
--- /dev/null
+++ b/srcpkgs/arcan/patches/ffmpeg4.patch
@@ -0,0 +1,62 @@
+--- src/frameserver/encode/default/encode.c	2018-04-15 11:19:51.000000000 +0200
++++ src/frameserver/encode/default/encode.c	2018-04-15 11:19:51.000000000 +0200
+@@ -285,8 +285,8 @@
+ /*
+  * for the flush case, we may have a little bit of buffers left, both in the
+  * encoder and the resampler,
+- * CODEC_CAP_DELAY = pframe can be NULL and encode audio is used to flush
+- * CODEC_CAP_SMALL_LAST_FRAME or CODEC_CAP_VARIABLE_FRAME_SIZE =
++ * AV_CODEC_CAP_DELAY = pframe can be NULL and encode audio is used to flush
++ * AV_CODEC_CAP_SMALL_LAST_FRAME or AV_CODEC_CAP_VARIABLE_FRAME_SIZE =
+  * we can the last few buffer bytes can be stored as well otherwise those
+  * will be discarded
+  */
+@@ -298,8 +298,8 @@
+  * and then re-use the encode / conversion code
+  */
+ 		if (!forcetog &&
+-			((ctx->flags & CODEC_CAP_SMALL_LAST_FRAME) > 0 ||
+-				(ctx->flags & CODEC_CAP_VARIABLE_FRAME_SIZE) > 0)){
++			((ctx->flags & AV_CODEC_CAP_SMALL_LAST_FRAME) > 0 ||
++				(ctx->flags & AV_CODEC_CAP_VARIABLE_FRAME_SIZE) > 0)){
+ 			recctx.aframe_insz = recctx.encabuf_ofs;
+ 			recctx.aframe_smplcnt = recctx.aframe_insz >> 2;
+ 			frame = av_frame_alloc();
+@@ -309,7 +309,7 @@
+ 			goto forceencode;
+ 		}
+ 
+-		if ( (ctx->flags & CODEC_CAP_DELAY) > 0 ){
++		if ( (ctx->flags & AV_CODEC_CAP_DELAY) > 0 ){
+ 			int gotpkt;
+ 			do {
+ 				AVPacket flushpkt = {0};
+@@ -638,7 +638,7 @@
+  * for float conversion, we need to double afterwards
+  */
+ 
+-			if ( (recctx.acodec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE) > 0){
++			if ( (recctx.acodec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE) > 0){
+ 				recctx.aframe_smplcnt = recctx.acontext->frame_size ?
+ 					recctx.acontext->frame_size : round( samplerate / fps );
+ 			}
+--- src/frameserver/encode/default/encode_presets.c	2018-04-15 11:19:51.000000000 +0200
++++ src/frameserver/encode/default/encode_presets.c	2018-04-15 11:19:51.000000000 +0200
+@@ -379,7 +379,7 @@
+ 
+ 	a.storage.video.context = avcodec_alloc_context3( a.storage.video.codec );
+ 	if (flags & AVFMT_GLOBALHEADER)
+-		a.storage.video.context->flags |= CODEC_FLAG_GLOBAL_HEADER;
++		a.storage.video.context->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
+ 
+ 	return a;
+ }
+@@ -397,7 +397,7 @@
+ 
+ 	res.storage.audio.context = avcodec_alloc_context3( res.storage.audio.codec);
+ 	if ( (flags & AVFMT_GLOBALHEADER) > 0){
+-		res.storage.audio.context->flags |= CODEC_FLAG_GLOBAL_HEADER;
++		res.storage.audio.context->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
+ 	}
+ 
+ 	return res;
diff --git a/srcpkgs/arcan/template b/srcpkgs/arcan/template
index d8b7394b62f..323b61d8575 100644
--- a/srcpkgs/arcan/template
+++ b/srcpkgs/arcan/template
@@ -1,7 +1,7 @@
 # Template file for 'arcan'
 pkgname=arcan
 version=0.5.4.6
-revision=2
+revision=3
 build_style=cmake
 build_wrksrc=src
 short_desc="Combined display server, multimedia framework and game engine"