FOURCC.org - Video Codecs and Pixel Formats

YVU9 yuv pixel format

This format dates back to the days of the ActionMedia II adapter and comprises an NxN plane of Y samples, 8 bits each, followed by (N/4)x(N/4) V and U planes.

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

Positive biHeight implies top-down image (top line first)

ATI has a codec supporting this format that you can download from here.

Child formats: YUV9 IF09

fourcc.org ©2011 Silicon.dk ApS