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IYU1 yuv pixel format

The IYU1 format is a 12 bit format used in mode 2 of the IEEE 1394 Digital Camera 1.04 spec ("1394-based Digital Camera Specification, Version 1.04, August 9, 1996", page 14.). The format, a duplicate of Y411, is YUV (4:1:1) according to the following pattern:

Byte 0 1 2 3 4 5
Sample U(K+0) Y(K+0) Y(K+1) V(K+0) Y(K+2) Y(K+3)

 

  Horizontal Vertical
Y Sample Period 1 1
V Sample Period 4 1
U Sample Period 4 1

Based on: Y411