shithub: libvpx

Info  •  Files  •  Log  •  Branches

Fix rate control issue with layers and aq-mode=3.

When aq-mode=3 is enabled, only for base layer frames should the
qp of the frame incorporate the segment delta-qp.

This was causing more rate mismatch for the enhancement layer frames
when running temporal layers with aq-mode=3 on.

Change-Id: I1c5e69d1ef8a51188af8696753c17fd8f67699b3

--- a/vp9/encoder/vp9_ratectrl.c

+++ b/vp9/encoder/vp9_ratectrl.c

@@ -491,7 +491,10 @@

   i = active_best_quality;

   do {

-    if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cm->seg.enabled) {

+    if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&

+        cm->seg.enabled &&

+        cpi->svc.temporal_layer_id == 0 &&

+        cpi->svc.spatial_layer_id == 0) {

       bits_per_mb_at_this_q =

           (int)vp9_cyclic_refresh_rc_bits_per_mb(cpi, i, correction_factor);

     } else {