commit de8280944449db88e96f9f4909f383a542c35de0
author Attila Nagy <attilanagy@google.com> Tue Oct 18 09:48:50 2011 +0300
committer Attila Nagy <attilanagy@google.com> Wed Oct 26 15:25:07 2011 +0300
tree 22d69da6a012acc12c4a98b5205adf3580d9e6ee
parent 2b5e6de80613baed2c28e893920dd7a632a8a231

Reduce partial frame copy in encoder's pick_filter_level_fast

The partial frame copy function used to copy an extra 8 lines above
and  below. The partial frame filtering can only modify 3 pixel rows
above the partial frame. Reduce copy to bare minimum needed, which is
4 lines, so that partial filtering on copied frame is possible.

Define the "magic" fraction number for partial filtering in
loopfilter.h .

Change-Id: I4791ffc541b6884b12759a0d0714a8faf16147ec