Jingning Han 114423538f SSE2 16x16 ADST/DCT hybrid transform
This commit enables 16x16 ADST/DCT forward hybrid transform using SSE2
operations. It reduces the runtime from 5433 cycles to 1621 cycles, at
no compression performance loss.

Change-Id: I75fd7f1984e9e28846af459f810ff0d6ae125230
2013-07-10 12:14:53 -07:00
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