These are under EXT_TX + RECT_TX experiment combo.

Results
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Derf Set:
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All Intra frames: 1.8% avg improvement (and 1.78% BD-rate improvement)
Video: 0.230% avg improvement (and 0.262% BD-rate improvement)

Objective-1-fast set
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Video: 0.52 PSNR improvement

Change-Id: I1893465929858e38419f327752dc61c19b96b997