ref: f4b7004967c586fe0dbef5de09f08a2c800ce7b5
parent: 5cbd333f3b491f6ecb41387acf72e8ec27d8a474
author: chiyotsai <chiyotsai@google.com>
date: Thu Jan 17 09:15:00 EST 2019
Change temporal filter's search_method on speed 1
This commit introduces a new speed feature that determines the
SEARCH_METHOD used by temporal filter when doing 16x16 block on
full_pixel_motion_search. On speed 0, the most exhaustive method MESH is
used. On speed 1 and above, a faster method NSTEP is used.
Performance:
| AVG_PSNR | AVG_SPDUP | AVG_SPDUP:AVG_PSNR
MISRES | 0.007% | 2.818% | 402:1
HDRES | 0.004% | 4.897% | 1224:1
In the case of midres, there is a small quality gain of -0.021% on
OVR_PSNR.
Performance measurement is done on speed 1 with auto_alt_ref=1.
Quality is measured on full midres set over 60 frames. Speed is measured
on 5 midres clips over 4 bitrates over 30 frames.
STATS_CHANGED
Change-Id: Ic1879d2237f8734529e194767a6cf5e43e20b47b