vp9 aq-mode=3: Allow it to be used for 1 pass VBR mode.

Change-Id: I630b8e33106c78382545d49da5fb4c75b1b0b528

vp9/encoder/vp9_aq_cyclicrefresh.c

diff --git a/vp9/encoder/vp9_aq_cyclicrefresh.c b/vp9/encoder/vp9_aq_cyclicrefresh.c
index 0a02bde..c2ba276 100644
--- a/vp9/encoder/vp9_aq_cyclicrefresh.c
+++ b/vp9/encoder/vp9_aq_cyclicrefresh.c
@@ -198,6 +198,9 @@
       refresh_this_block = 1;
   }
 
+  if (cpi->oxcf.rc_mode == VPX_VBR && mi->ref_frame[0] == GOLDEN_FRAME)
+    refresh_this_block = 0;
+
   // If this block is labeled for refresh, check if we should reset the
   // segment_id.
   if (cyclic_refresh_segment_id_boosted(mi->segment_id)) {
@@ -305,6 +308,8 @@
     rc->baseline_gf_interval = VPXMIN(4 * (100 / cr->percent_refresh), 40);
   else
     rc->baseline_gf_interval = 40;
+  if (cpi->oxcf.rc_mode == VPX_VBR)
+    rc->baseline_gf_interval = 20;
 }
 
 // Update some encoding stats (from the just encoded frame). If this frame's
@@ -504,6 +509,18 @@
     cr->motion_thresh = 4;
     cr->rate_boost_fac = 12;
   }
+  if (cpi->oxcf.rc_mode == VPX_VBR) {
+    // To be adjusted for VBR mode, e.g., based on gf period and boost.
+    // For now use smaller qp-delta (than CBR), no second boosted seg, and
+    // turn-off (no refresh) on golden refresh (since it's already boosted).
+    cr->percent_refresh = 10;
+    cr->rate_ratio_qdelta = 1.5;
+    cr->rate_boost_fac = 10;
+    if (cpi->refresh_golden_frame == 1) {
+      cr->percent_refresh = 0;
+      cr->rate_ratio_qdelta = 1.0;
+    }
+  }
 }
 
 // Setup cyclic background refresh: set delta q and segmentation map.

vp9/encoder/vp9_ratectrl.c

diff --git a/vp9/encoder/vp9_ratectrl.c b/vp9/encoder/vp9_ratectrl.c
index 11b89b9..042fe0b 100644
--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -1469,7 +1469,12 @@
     cm->frame_type = INTER_FRAME;
   }
   if (rc->frames_till_gf_update_due == 0) {
-    rc->baseline_gf_interval = (rc->min_gf_interval + rc->max_gf_interval) / 2;
+    if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cpi->oxcf.pass == 0) {
+      vp9_cyclic_refresh_set_golden_update(cpi);
+    } else {
+      rc->baseline_gf_interval =
+          (rc->min_gf_interval + rc->max_gf_interval) / 2;
+    }
     rc->frames_till_gf_update_due = rc->baseline_gf_interval;
     // NOTE: frames_till_gf_update_due must be <= frames_to_key.
     if (rc->frames_till_gf_update_due > rc->frames_to_key) {
@@ -1487,6 +1492,8 @@
   else
     target = calc_pframe_target_size_one_pass_vbr(cpi);
   vp9_rc_set_frame_target(cpi, target);
+  if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cpi->oxcf.pass == 0)
+    vp9_cyclic_refresh_update_parameters(cpi);
 }
 
 static int calc_pframe_target_size_one_pass_cbr(const VP9_COMP *cpi) {