Dubbed “al-Khwarizmi”, the FFMpeg 4.1 release comes six months after the April 2018 debut of the FFmpeg 4.0 “Wu” series. It’s a major update that adds lots of new filters, decoders and encoders of all kinds, as well as some exciting new features and enhancements to make FFmpeg the best free multimedia backend on the market. Highlights of the FFmpeg 4.1 “al-Khwarizmi” release include support for the highly efficient AV1 codec in the MP4 container, an AV1 parser for parsing AV1 encoded streams, Transport Layer Security (TLS)-based mbedTLS support, a SER demuxer, as well as a libtensorflow backend for DNN-based filters like srcnn.