shithub: libvpx

Download patch

ref: b09f628df8ba80212c4dc8bab82d23ef97da7b42
parent: c09e95fc7da1c91db3cef34dc61010ab33443eea
author: Paul Wilkins <paulwilkins@google.com>
date: Wed Mar 27 13:57:00 EDT 2019

Allow more Intra choices in film mode.

Disable part of a speed feature that blocks all intra modes
except DC_PRED when the source variance is low.

Change-Id: I2956951fd05933a39f7225d4dfe14e019410fee3

--- a/vp9/encoder/vp9_rdopt.c
+++ b/vp9/encoder/vp9_rdopt.c
@@ -3459,7 +3459,8 @@
         // Disable intra modes other than DC_PRED for blocks with low variance
         // Threshold for intra skipping based on source variance
         // TODO(debargha): Specialize the threshold for super block sizes
-        const unsigned int skip_intra_var_thresh = 64;
+        const unsigned int skip_intra_var_thresh =
+            (cpi->oxcf.content == VP9E_CONTENT_FILM) ? 0 : 64;
         if ((mode_search_skip_flags & FLAG_SKIP_INTRA_LOWVAR) &&
             x->source_variance < skip_intra_var_thresh)
           continue;