iFormat

Type of compression to use. Valid values are:

Value

Meaning

FILE_CMP

LEAD CMP compression format.

FILE_JPEG

JPEG File Interchange Format using YUV 4:4:4 color spacing.

FILE_JPEG_422

JPEG File Interchange Format using YUV 4:2:2 color spacing.

FILE_JPEG_411

JPEG File Interchange Format using YUV 4:1:1 color spacing.

FILE_EXIF_JPEG_411

Exif 2.0 file containing a JPEG compressed image. uses 4:1:1 subsampling (called 4:2:0 sampling in other places).