- encoder:
 * API to easily speed up/slow down speed
   (change samplerate, insert "jitter/silence")
- decoder:
 * get more accurate, correct posinfo w/ jitter.
 * additional zero-pass counter, edge detection.

among all the other stuff don't forget to..
 * complete the doxygen documentation
 * generate man-page from doxy
 * clean up tests/*.c output. - do proper testing.
 * use assert();
