diff -r d94f65b66c60 -r ac423fd2b9a3 QTfrontend/util/LibavInteraction.cpp
--- a/QTfrontend/util/LibavInteraction.cpp	Wed Nov 11 21:57:28 2015 +0300
+++ b/QTfrontend/util/LibavInteraction.cpp	Thu Nov 12 02:41:40 2015 +0100
@@ -33,8 +33,11 @@
 #include "HWApplication.h"
 
 // compatibility section
+#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(54, 8, 0)
+#define av_codec_is_encoder(x)          x->encode
+#endif
+
 #if LIBAVCODEC_VERSION_MAJOR < 55
-#define av_codec_is_encoder(x)          x->encode
 #define AVCodecID                       CodecID
 #endif