shithub: libvpx

Download patch

ref: 49f51af4c95149915069084efab971d88700041d
parent: 3ae909b0f9a8c957c65acbc82d8c4f3c58f25417
author: Marco <marpan@google.com>
date: Wed Nov 29 08:37:21 EST 2017

vp9-svc: Don't allow encode_breakout on golden ref.

For 1 pass cbr SVC: GOLDEN is the spatial reference,
better not to check for encoder_breakout on this reference.

Small positive ~0.075% (mostly neutral) gain in avgPSNR/SSIM metrics.
No observed change in encoder speed.

Change-Id: Ib337f16d6771105bf06384c6a23ad047fc690418

--- a/vp9/encoder/vp9_pickmode.c

+++ b/vp9/encoder/vp9_pickmode.c

@@ -876,6 +876,7 @@

   // Skipping threshold for dc.

   unsigned int thresh_dc;

   int motion_low = 1;

+  if (cpi->use_svc && ref_frame == GOLDEN_FRAME) return;

   if (mi->mv[0].as_mv.row > 64 || mi->mv[0].as_mv.row < -64 ||

       mi->mv[0].as_mv.col > 64 || mi->mv[0].as_mv.col < -64)

     motion_low = 0;