tree 582b01b0f1de43a0b4be7cda148a8a8068996450
parent 7c30ad93ab907f0b67a448078029329b5e629fb8
author Jim Bankoski <jimbankoski@google.com> 1528387500 -0700
committer James Bankoski <jimbankoski@google.com> 1528721830 +0000

av1_encoder : sharpness affect

This patch changes the effect of the sharpness parameter to the encoder.
It no longer affects the thresholds in the loop filter.  Now it acts this
way:
sharpness
  0 => acts as before.
  1 => stops performing eob and skip block optimization
1-7 => changes rdmult in trellis to favor lower distortion

The effect is images / video include more detail at the same bitrate
but sometimes also more artifacts.

+ when using variance based aq : lower segment ids
also favor lower distortion

Change-Id: Ibfc95bfea3ac1312df01c954f98036bb98b58ff9