Matias Freytes wrote: > Hello, > > > There are a zillion RGB-YUV conversion routines out there, > > including a reasonably fast one in the tarball of mine on > > Gleicon's site. > > What about YUV420 to RGB565 fast conversion routines? Any hints? That depends what you mean by fast. My stuff is all C++ but uses precomputed lookup tables to achieve pretty good speed. I havn't benchmarked it against any of the MMX implementations - if you want one of those then any of the MPEG or DVD players is going to include optimized conversion code. The only thing other than the YUV-RGB565 (which my stuff supports) conversion that you need specifically foy YUV420 is to know what the data layout is: It's the Y plane (w x h), followed by the U then V planes each at (w/2 x h/2). This is assuming you're meaning V4L VIDEO_PALETTE_YUV420P. If you mean AVI I420 then it's the same, and for AVI YV12 it has the order of the U and V planes reversed. Ben
