How to decode to Uncompressed RGB ?

[h8er]

hi i need to decode some xvid movies to uncompressed rgb avi on my kubuntu pc, i have tried avidemux trascode mencoder ffmpeg but i don't understand how to do the job, i need something like the Virtualdub "Uncompressed RGB" Compression option, can you help me ? thanks in advance

[J_Darnley]

ffmpeg -i input.avi -an -vcodec rawvideo -pix_fmt bgr24 output.avi

This command works but produces upside down video and I don't know if I can change that with ffmpeg.

[EDIT] I should point out that this is on Windows. I could boot up into my Ubuntu installation and test as again but my PC is busy.