From: Marco Paniconi <marpan@google.com>
Date: Mon, 16 Jun 2014 18:29:02 +0000 (-0700)
Subject: vp8 denoising: add bias factor to zero_mv sse.
X-Git-Tag: v1.4.0~1391^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d9246406631119e5e62bebed3769a0c908d2e899;p=libvpx

vp8 denoising: add bias factor to zero_mv sse.

Change-Id: I95818754424e89f0d56c6d9c0c5709e6f84fa46a
---

diff --git a/vp8/encoder/denoising.c b/vp8/encoder/denoising.c
index 5616bdad7..0f2e5f17b 100644
--- a/vp8/encoder/denoising.c
+++ b/vp8/encoder/denoising.c
@@ -276,7 +276,11 @@ void vp8_denoiser_denoise_mb(VP8_DENOISER *denoiser,
         MB_MODE_INFO saved_mbmi;
         MACROBLOCKD *filter_xd = &x->e_mbd;
         MB_MODE_INFO *mbmi = &filter_xd->mode_info_context->mbmi;
-        int sse_diff = zero_mv_sse - best_sse;
+        int sse_diff = 0;
+        // Bias on zero motion vector sse.
+        int zero_bias = 95;
+        zero_mv_sse = (unsigned int)((int64_t)zero_mv_sse * zero_bias / 100);
+        sse_diff = zero_mv_sse - best_sse;
 
         saved_mbmi = *mbmi;