Methods and apparatus for encoding and decoding video subframes (e.g., lower-resolution
video) with a DVC video coder are disclosed. The disclosed embodiments allow a
DVC video coder to efficiently code a subframe. The disclosed encoder embodiments
redistribute blocks of data from a subframe to correspond with the staggered locations
used for video segment creation. This separates video segments at the DVC coder
output into two group—those largely or completely composed of subframe data,
and those containing discardable data. The present invention allows a DVC coder
to be used efficiently for several different video resolutions, or in a low-resolution system.