+- update cuvid/nvenc headers to Video Codec SDK 8.0.14
+- afir audio filter
+- scale_cuda CUDA based video scale filter
+- librsvg support for svg rasterization
+- crossfeed audio filter
+- spec compliant VP9 muxing support in MP4
+- remove the libnut muxer/demuxer wrappers
+- remove the libschroedinger encoder/decoder wrappers
+- surround audio filter
+- sofalizer filter switched to libmysofa