FFmpeg 5.1.4 is an advanced cross-platform software program used for handling multimedia data including audio, video, and other broadcast formats. It provides the command-line tool that allows users to convert multimedia files and also offers a streaming function for broadcasting multimedia. The software includes libavcodec, an audio/video codec library used by several other projects, in addition to libavformat, an audio/video container mux and demux library. Combining these features, FFmpeg serves a critical role in multimedia content creation, transformation, and streaming.