commit 0200aa7142d80b23efd8415acafdf055ede5b909
author Marco Paniconi <marpan@google.com> Wed May 31 09:54:56 2023 -0700
committer Marco Paniconi <marpan@google.com> Wed May 31 19:51:58 2023 +0000
tree 25c7824dd0bd370dc229f2740de12884e4da0963
parent dcaf4ef23d1e4b40be06c4bb020938405ed68ab9

rtc-svc: Enable last-golden compound for 3 TL

For speed 10 3TL with 55/20/25 split on rtc_set:
~1% bdrate gain, several clips ~2-4% gain.
IC% slowdown ~1.5%

Change-Id: Ib98a503908f99c4b2205fa5709f9e1e881138faa

examples/svc_encoder_rtc.c

diff --git a/examples/svc_encoder_rtc.c b/examples/svc_encoder_rtc.c
index 40e29b9..77a123c 100644
--- a/examples/svc_encoder_rtc.c
+++ b/examples/svc_encoder_rtc.c
@@ -803,8 +803,11 @@
       // Every frame can reference GOLDEN AND ALTREF.
       ref_frame_config->reference[SVC_GOLDEN_FRAME] = 1;
       ref_frame_config->reference[SVC_ALTREF_FRAME] = 1;
-      // Allow for compound prediction using LAST and ALTREF.
-      if (speed >= 7) ref_frame_comp_pred->use_comp_pred[2] = 1;
+      // Allow for compound prediction for LAST-ALTREF and LAST-GOLDEN.
+      if (speed >= 7) {
+        ref_frame_comp_pred->use_comp_pred[2] = 1;
+        ref_frame_comp_pred->use_comp_pred[0] = 1;
+      }
       break;
     case 4:
       // 3-temporal layer: but middle layer updates GF, so 2nd TL2 will