from GUI_AVI.h:170
typedef struct
{
U32 BmpSize;
U32 Width;
U32 Height;
U16 Planes;
U16 BitCount;
U32 Compression;
U32 SizeImage;
U32 XpixPerMeter;
U32 YpixPerMeter;
U32 ClrUsed;
U32 ClrImportant;
}BMP_HEADER;