Similar to YV12, this format comprises an NxN Y plane followed by (N/2)x(N/2) U and V planes. The U and V planes have the same stride as the Y plane and are restricted to start on 16 line boundaries.
Horizontal | Vertical | |
Y Sample Period | 1 | 1 |
V (Cr) Sample Period | 2 | 2 |
U (Cb) Sample Period | 2 | 2 |
Microsoft defines this format as follows:
"The same as YV12, except that the stride of the Cb and Cr planes is the same as the stride in the Y plane. The Cb and Cr planes are also restricted to fall on memory boundaries that are a multiple of 16 lines (a restriction that has no effect on usage for the standard formats, since the standards all use 16�16 macroblocks)."
Based on: YV12
Duplicate formats: IMC3
Child formats: IMC2