FFmpeg Cirrus Logic AccuPak (CLJR)

Proprietary YUV 4 pixels/DWORD.
The Cirrus Logic AccuPak codec, identified by the fourcc CLJR, packs 4 Y samples and 2 C samples into 32 bits by representing each Y sample with 5 bits and each C sample with 6 bits. It is essentially a scaled-down method of coding YUV 4:1:1, where each group of 4 pixels on a line is represented by a luminance sample each but share C samples.