page boundary. Capture devices may write padding bytes, the value is
undefined. Output devices ignore the contents of padding
bytes.</para><para>When the image format is planar the
-<structfield>bytesperline</structfield> value applies to the largest
+<structfield>bytesperline</structfield> value applies to the first
plane and is divided by the same factor as the
-<structfield>width</structfield> field for any smaller planes. For
+<structfield>width</structfield> field for the other planes. For
example the Cb and Cr planes of a YUV 4:2:0 image have half as many
padding bytes following each line as the Y plane. To avoid ambiguities
drivers must return a <structfield>bytesperline</structfield> value