- fix the bitplane-skip-logic bug and check this code, this is not as clean as it should be ...
 - there is at least one memory leak, try export MALLOC_CHECK_=1
 - design file/stream format and find a cool name for this codec
 - write avitow3d/quicktimetow3d/player/recorder (a libsndfile/libaudiofile alike video library would be great !)
 - tune coefficient transmission order in coder.c -- frame direction child levels should possibly get a smaller offset to supress preecho-alike ghost images
 - (4,4) - Wavelets
 - arithmetic binary entropy coders may be faster, simpler and more efficient
 - profile
 - rewrite wavelet xform code, the current implementation forces cache misses
 - introduce fast paths in coefficient decoder if (mps == 0)
 - mmx/3dnow/sse/altivec