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(parent: cedd24e) | patch
Skip inverse transform when eob is zero
authorJingning Han <jingning@google.com>
Tue, 23 Jul 2013 17:02:43 +0000 (10:02 -0700)
committerJingning Han <jingning@google.com>
Tue, 23 Jul 2013 17:06:41 +0000 (10:06 -0700)
commit0359ad7f9a8d8e78482b869d9c911df4d02f5dbf
tree4051ce219d560e4e3d6f58ba1581acdf41cb8236tree | snapshot
parentcedd24ec619849994eebc23d02f3141c6a4acefbcommit | diff
Skip inverse transform when eob is zero

When all the transform coefficients were quantized to zero, skip
the inverse transform operation. For bus_cif at 1000 kbps, the
runtime goes from 154967ms -> 149842ms, i.e., about 3% speed-up,
at speed 0.

Change-Id: Ic0a813fff5e28972d4888ee42d8747846a6c3cc6
vp9/encoder/vp9_encodemb.c diff | blob | history
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