FFmpeg is the leading framework for decoding, encoding, transcoding, muxing, demuxing, streaming, filtering and playing pretty much any media format. It supports widespread and standardized, proprietary and fringe file formats and encodings. It's comprised of the ffmpeg, ffserver, ffplay and ffprobe utilities. But also provides libavcodec, libavutil, libavformat, libavfilter, libavdevice, libswscale and libswresample for application use. Its primary development attention is on security.
minor feature: 4.2.1 was released on 2019-09-07. It is the latest stable FFmpeg release From the 4.2.1 release branch, which was cut from master on 2019-07-21. It includes the following library versions: Libavutil 56. 31.100 Libavcodec 58. 54.100 Libavformat 58. 29.100 Libavdevice 58. 8.100 Libavfilter 7. 57.100 Libswscale 5. 5.100 Libswresample 3. 5.100 Libpostproc 55. 5.100