Avidemux is a video editor designed for simple cutting, filtering and encoding tasks

Avidemux supports a great number of file types, including AVI, MPEG, MP4/MOV, OGM, ASF/WMV, MKV and FLV.
It also provides a great number of video filters, e.g. resize, deinterlace, IVTC, sharpen and denoise.
Furthermore Avidemux ships with various encoders built-in, such as x264, Xvid, LAME, TwoLAME and Aften.