FFmpeg
FFmpeg is an open source project that develops libraries and programs for handling multimedia data. FFmpeg is the home to libavcodec, a codec library used by a large spectrum of programs, and libavformat, a mux and demux library for containers. The project develops 4 command-line programs; ffmpeg, the central tool for transcoding multimedia files, as well as ffplay, a simple media player for previewing files, ffprobe, a profiling tool for scanning containers, and ffserver, a network streaming server. FFmpeg is published under the GNU Lesser General Public License 2.1+ or GNU General Public License 2+ (depending on which options are enabled).
