* Increase history set to 64 to simplify reduction of indexes
* Decrease memory consumption a bit by using bitfields for some bools
* Rework reduction code
* Drop an unnessacary counter
* Before adding a new entry to the history, try to figure out if we already have an existing entry with the same x value and replace that. This fixes a division by zero
* Fix up input x for all functions, according to the time offset
git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2316
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