Attila Nagy e570b0406d Reduce mem copies in encoder loopfilter level picking
Do the test filtering in the existing backup frame buffer instead of
the original. Copy the original data into extra buffer before doing
the  filtering. This way there is no need to restore the original
unfiltered  frame at the end of level picking process.

This came up in some discussions with Johann. Thanks!

Change-Id: I495f4301d983854673276c34ec0ddf9a9d622122
2011-12-07 09:59:50 +02:00
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2011-08-16 16:21:21 -04:00