- SNOW: 4x4 block support
- SNOW: 1/8 pel motion compensation support
- SNOW: iterative motion estimation based on subsampled images
-- ADPCM: viterbi/trellis based optimal encoder
- FLAC: lossy encoding (viterbi and naive scalar quantization)
- libavfilter
- JPEG2000 decoder & encoder
- macroblock based pixel format (better cache locality, somewhat complex, one paper claimed it faster for high res)
- finish NUT implementation
- movenc.c fix stts so that variable framerate files work
+- seeking regression test
+- regression tests for codecs which dont have an encoder (I+P frame bitstream in svn)