[...] Canek> I need to convert raw RGB frames into Planar YCrCB 4:2:0, because I Canek> want to write in the YUV4MPEG2 format of MJPEG tools Canek> (http://mjpeg.sourceforge.net/), and ccvt does the conversion, but I Canek> get all the colors wrong (I'm using ccvt_rgb24_420p, BTW, if someone Canek> knows why). (I'm putting headers by hand, of course; ccvt only converts one frame at a time). Canek -- Time is an illusion perpetrated by the manufacturers of space.