1. An apparatus comprising: a circuit configured to (i) generate a plurality of sets of coefficients by compressing a tile in a picture in a video signal a plurality of times, each time at one of a plurality of different sizes of a plurality of coding units in a coding tree unit and (ii) reconstruct said tile based on a particular one of said sets of coefficients, wherein (a) said sets of coefficients of said tile are generated at two or more of said different sizes of said coding units in parallel, (b) each of said sets of coefficients of said tile is generated in a corresponding one of a plurality of pipelines that operate in parallel and at different clock cycle rates and (c) each of said sets of coefficients of said tile has a same number of said coefficients processed in said pipelines; and a processor configured to select said particular set of coefficients to reconstruct said tile in response to said compression of said tile.