Introduction - If you have any usage issues, please Google them yourself
FFmpeg is a free open source cross-platform video and audio streaming program is free software, the use of LGPL or GPL licenses (according to your choice of components). It provides a recording, streaming audio and video conversion and complete solution. It contains a very advanced audio/video codec library libavcodec, in order to ensure portability and high quality codec, libavcodec codec is in a lot of development from scratch.