tree 2a617e7c9ba1cb5934e31b9355e8b25cb9f44057
parent 48073d93c20dd2d319c0d45291d43e0dfb76c9a5
author Peng Bin <binpengsmail@gmail.com> 1529671625 +0800
committer Bin Peng <binpengsmail@gmail.com> 1530497752 +0000

Speed up av1_get_switchable_rate

The switchable_ctx for each filter during
interpolation filter type search are always
the same, no need to call av1_get_switchable_rate
repetitively.

For encoder, about 0.3% faster shows by encoding
20 frame of BasketballDrill_832x480_50.y4m.
( 510848 ms -> 509604 ms)

a) gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
b) CPU: Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz
c) Config cmd
cmake ../ -DENABLE_CCACHE=1 -DCONFIG_LOWBITDEPTH=1
d) Test cmd:
./aomenc --cpu-used=1 --end-usage=vbr \
--target-bitrate=800 --limit=20

Change-Id: I38d4ae3cadf36c38ecb076bd491a8c0bf0abf40d