Hi, I don't believe in myself , I call it ffmpeg-2.4.3 , to emphasize that was a new ffmpeg release , not 2.4.0 and 2.4.1 , but in fact was a rebuild for ffmpeg-2.4.2  , is the 3rd release of ffmpeg-2.4 (0, 1 and 2) but it is ffmpeg-2.4.2 . I just notice this today .