tree e00e84b5ee2df2b0668151f8dd0a40ea52f94e9e
parent a6b4ed1453e1d6d6291917ead2180f32081d60a4
author Marco Paniconi <marpan@google.com> 1674549127 -0800
committer Marco Paniconi <marpan@google.com> 1674689644 +0000

rtc-screen: Allow more palette mode testing

In the current nonrd_pickmode for screen
palette mode was only checked if the best mode
is intra. This change adds condition to check
palette mode if the best inter mode has sse above
threshold (along with other bsize/content conditons).

This improves bdrate and visual quality for screen.
In particular,this removes/reduces artifacts observed
on a few slide changes in sc_web_browsing720p.

For speed 10 rtc_screen:
avg/ovr/ssim, %speedup(IC)
-3.7/-6.4/-3.3, -1.0

All clips have some bdrate gain.
Big gains (~12-15%) on the clip (sc_web_browsing720p)
that showed the artifact.

Change-Id: Ia2809f8e40a4ae5c4fc0da8339da1fce0348c2c3