FFmpeg is a free computer program that can record, convert and stream digital audio and video in numerous formats. It contains multiple components including a a command line tool to convert multimedia files between formats. FFmpeg is developed under Linux, but it can be compiled under most operating systems, including Apple Inc. Mac OS X, Microsoft Windows and AmigaOS. An indirect proof of it's popularity is the number of imitators who flout FFmpeg licensing terms.
WinFF is a GUI for the command line video converter, FFmpeg. It can convert multiple different files all to the same format at once. You can for example convert mpeg’s, flv’s, and mov’s, all into avi’s all at once. WinFF is available for Windows 95, 98 , ME, NT, XP, Vista. The WinFF version 0.43 Windows Installer is just 3.4MB and is available on Google Code. WinFF is published under the GNU public license.
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