https://bitbucket.org/multicoreware/x265/downloads/x265_3.2.1.tar.gz
https://ffmpeg.org/releases/ffmpeg-4.2.tar.bz2
https://github.com/webmproject/libvpx/archive/v1.8.1.tar.gz
-https://code.videolan.org/videolan/dav1d/-/archive/0.5.0/dav1d-0.5.0.tar.gz
+https://code.videolan.org/videolan/dav1d/-/archive/0.6.0/dav1d-0.6.0.tar.gz
https://github.com/swh/ladspa/releases/tag/v0.4.17, plugin.org.uk
https://archive.mozilla.org/pub/opus/opus-1.3.1.tar.gz
https://github.com/webmproject/libwebp = libwebp-1.1.0