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(parent: a91e5b4) | patch
Replace scatter scan 32x32 with HW friendly scan.
authorSami Pietila <samipietila@google.com>
Thu, 30 May 2013 09:51:36 +0000 (12:51 +0300)
committerSami Pietila <samipietila@google.com>
Thu, 30 May 2013 12:32:46 +0000 (15:32 +0300)
commit5700b4ea422fe85eeca2949b146c1fb98fc4e8cc
treec10327034a2206797ddaf0ff9ee62494c78de38etree | snapshot
parenta91e5b4fdc4e81352fa3a65c7fc795527eee6b07commit | diff
Replace scatter scan 32x32 with HW friendly scan.

The first 240 coeff positions (15 top-left blocks) are scanned in the
same order as in scatter scan, after that the coeffs are scanned in
"block bands", each band at a time, all coeffs in one band before
moving on to the next band. This brings down the amount of 4x4 coeff
blocks that need to be buffered while scanning, from 15 blocks to 8 blocks.

Change-Id: I478a991d63c48bd5e64d36e59fed7a00c9a651ba
vp9/common/vp9_entropy.c diff | blob | history
Domain: Multimedia / Codec;