>> Are V4L2_PIX_FMT_RGB555X and V4L2_PIX_FMT_RGB565X exactly same as >> V4L2_PIX_FMT_RGB555 and V4L2_PIX_FMT_RGB565 but the bits in the 16-bit >> words reversed wordwise (or bytewise)? I was _really_ confused when I wrote this. Of course not. On Wed, 29 Jan 2003, Gerd Knorr wrote: >The X versions are just byte swapped. Ok, but this means that the green bits are splitted in half and the most and the least significant bits are swapped. In a nutshell: these formats can't be described with the M$ fourcc 0x00000003 even if it allows arbitrary bitfields. And now hopefully the last questions/bug reports: 1. Shouldn't the depth for formats V4L2_PIX_FMT_YVU411P and V4L2_PIX_FMT_YUV411P be 12 bits (not 16 what the videodev.h says)? 2. What is V4L2_PIX_FMT_YUY2? Is it same as V4L2_PIX_FMT_YUYV? 3. According to palette_to_pixelformat() in v4l_compat.c, V4L2_PIX_FMT_YUV410 is same as VIDEO_PALETTE_YUV410P. Shouldn't it be added to pixelformat_to_palette() also? 4. What is V4L2_PIX_FMT_YYUV? Is it non-planar with sample order Y0, Y1, U0, V0 (just a guess)? [I could update V4L2 documentation if I just would know at least most of the formats] Does anybody have example images coded in different formats?
