shithub: libvpx

Download patch

ref: 4bb51416e183381cd1df474662a8224a47476c2d
parent: e718cade1dc7179daede6b695166702dbf6ab8b4
author: Ravi Chaudhary <ravi.chaudhary@ittiam.com>
date: Mon Mar 11 11:09:08 EDT 2019 

Refine active best quality of layered ARF frames

Change-Id: If630af68fc3793d579a947d5955c2001c0cf0a8d


--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -1446,19 +1446,18 @@
 
       // Constrained quality use slightly lower active best.
       active_best_quality = active_best_quality * 15 / 16;
-
-      // Modify best quality for second level arfs. For mode VPX_Q this
-      // becomes the baseline frame q.
-      if (gf_group->rf_level[gf_group_index] == GF_ARF_LOW) {
-        const int layer_depth = gf_group->layer_depth[gf_group_index];
-        // linearly fit the frame q depending on the layer depth index from
-        // the base layer ARF.
-        active_best_quality =
-            ((layer_depth - 1) * q + active_best_quality + layer_depth / 2) /
-            layer_depth;
-      }
     } else {
       active_best_quality = get_gf_active_quality(cpi, q, cm->bit_depth);
+    }
+    // Modify best quality for second level arfs. For mode VPX_Q this
+    // becomes the baseline frame q.
+    if (gf_group->rf_level[gf_group_index] == GF_ARF_LOW) {
+      const int layer_depth = gf_group->layer_depth[gf_group_index];
+      // linearly fit the frame q depending on the layer depth index from
+      // the base layer ARF.
+      active_best_quality =
+          ((layer_depth - 1) * q + active_best_quality + layer_depth / 2) /
+          layer_depth;
     }
   } else {
     active_best_quality = inter_minq[active_worst_quality];