Wikipedia
Libav
Libav is a free software project, forked from FFmpeg in 2011, that produces libraries and programs for handling multimedia data. Libav is developed for many operating systems, including GNU/ Linux, the BSDs, OS X, Microsoft Windows, AmigaOS and its heir MorphOS. It supports most common instruction set architectures, including IA-32, x86-64, PowerPC, ARM, DEC Alpha, SPARC, and MIPS.