tree 98dc6889147db43e4935c688581eb6210284157e
parent fe725123130681adfe824f391362ca7abb2ddfe2
author Marco Paniconi <marpan@google.com> 1582931715 -0800
committer Marco Paniconi <marpan@google.com> 1583167520 -0800

rtc: Reduce/remove filter_search for speed 8

For speed 8:
For resolutions >= 360p, reduce the interpol
filter search by using chessboard pattern.
For resolutions below 360p remove the filter search.

rtc set: avg. bdrate loss of ~2% (loss is much higher
~6-7% if filter search removed here).
Speedup ~8-10% on 720p.

rtc_derf set: avg. bdrate loss ~0.8% (max 1.4%).
Speedup ~3% on QVGA.

Change-Id: Ibdb6fe1462e4e1dcc8724224cfad790cc800bc94