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Urvang Joshi authored
(1) We use an initial variable shift, and then (2) A multiply + 16 bit shift for bit-depth = 8, OR A multiply + 17 bit shift for bit-depth = 10 and 12 All the constants (shifts and multipliers) for different block sizes are based on "Algorithm 1" in http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1467632 Note: This also reverts test hashes etc to the version before commit 37ebf187. BUG=aomedia:1191 Change-Id: I2aaebc3e95958a3f145c0408aa5cbcc85e30c8dc
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