commit d76abc1c97c2a717254055a6ccd8373e888c8e57
author Fyodor Kyslov <kyslov@google.com> Thu Jan 20 11:38:37 2022 -0800
committer Fyodor Kyslov <kyslov@google.com> Thu Jan 20 23:35:37 2022 +0000
tree 90144f1028adc399c5c67480cb7a0e3335fddc36
parent 0d06426a73e6f461fb124b94c188e74e60eee041

AV1 RT: Don't perform loopfilter for screen content

Don't perform LF on non-key frames if LF control is SELECTIVE and
content type is SCREEN

~5% speed up for speed 10 with around 0.1dB change

Change-Id: Ifb5137ddb45baa2f5710da2720eeda918c19e854

av1/encoder/picklpf.c

diff --git a/av1/encoder/picklpf.c b/av1/encoder/picklpf.c
index 2f30952..db09f00 100644
--- a/av1/encoder/picklpf.c
+++ b/av1/encoder/picklpf.c
@@ -262,14 +262,19 @@
     lf->filter_level_v = clamp(filt_guess, min_filter_level, max_filter_level);
     if (cpi->oxcf.algo_cfg.loopfilter_control == LOOPFILTER_SELECTIVELY &&
         !frame_is_intra_only(cm)) {
-      const int num4x4 = (cm->width >> 2) * (cm->height >> 2);
-      const int newmv_thresh = 7;
-      const int distance_since_key_thresh = 5;
-      if ((cpi->td.rd_counts.newmv_or_intra_blocks * 100 / num4x4) <
-              newmv_thresh &&
-          cpi->rc.frames_since_key > distance_since_key_thresh) {
+      if (cpi->oxcf.tune_cfg.content == AOM_CONTENT_SCREEN) {
         lf->filter_level[0] = 0;
         lf->filter_level[1] = 0;
+      } else {
+        const int num4x4 = (cm->width >> 2) * (cm->height >> 2);
+        const int newmv_thresh = 7;
+        const int distance_since_key_thresh = 5;
+        if ((cpi->td.rd_counts.newmv_or_intra_blocks * 100 / num4x4) <
+                newmv_thresh &&
+            cpi->rc.frames_since_key > distance_since_key_thresh) {
+          lf->filter_level[0] = 0;
+          lf->filter_level[1] = 0;
+        }
       }
     }
   } else {