From edccfcebb28882681a7566c47f5c1f866a917033 Mon Sep 17 00:00:00 2001
From: Dmitry Kovalev <dkovalev@google.com>
Date: Tue, 27 May 2014 18:19:19 -0700
Subject: [PATCH] Using 2 instead of 3 elements for last_q array.

Change-Id: I2c6950e7d79fc89c6f97e6dcf47317ef66c453a5
---
 vp9/encoder/vp9_ratectrl.c         | 6 ++----
 vp9/encoder/vp9_ratectrl.h         | 2 +-
 vp9/encoder/vp9_svc_layercontext.c | 5 ++---
 3 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/vp9/encoder/vp9_ratectrl.c b/vp9/encoder/vp9_ratectrl.c
index 9ad851754..6f646ea0e 100644
--- a/vp9/encoder/vp9_ratectrl.c
+++ b/vp9/encoder/vp9_ratectrl.c
@@ -200,9 +200,8 @@ void vp9_rc_init(const VP9EncoderConfig *oxcf, int pass, RATE_CONTROL *rc) {
                                    oxcf->best_allowed_q) / 2;
   }
 
-  rc->last_q[0] = oxcf->best_allowed_q;
-  rc->last_q[1] = oxcf->best_allowed_q;
-  rc->last_q[2] = oxcf->best_allowed_q;
+  rc->last_q[KEY_FRAME] = oxcf->best_allowed_q;
+  rc->last_q[INTER_FRAME] = oxcf->best_allowed_q;
 
   rc->buffer_level =    oxcf->starting_buffer_level;
   rc->bits_off_target = oxcf->starting_buffer_level;
@@ -1090,7 +1089,6 @@ void vp9_rc_postencode_update(VP9_COMP *cpi, uint64_t bytes_used) {
   } else if (!rc->is_src_frame_alt_ref &&
              (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame) &&
              !(cpi->use_svc && oxcf->rc_mode == RC_MODE_CBR)) {
-    rc->last_q[2] = qindex;
     rc->avg_frame_qindex[2] =
         ROUND_POWER_OF_TWO(3 * rc->avg_frame_qindex[2] + qindex, 2);
   } else {
diff --git a/vp9/encoder/vp9_ratectrl.h b/vp9/encoder/vp9_ratectrl.h
index b1cc67609..614078eef 100644
--- a/vp9/encoder/vp9_ratectrl.h
+++ b/vp9/encoder/vp9_ratectrl.h
@@ -30,7 +30,7 @@ typedef struct {
   int this_frame_target;           // Actual frame target after rc adjustment.
   int projected_frame_size;
   int sb64_target_rate;
-  int last_q[3];                   // Separate values for Intra/Inter/ARF-GF
+  int last_q[FRAME_TYPES];         // Separate values for Intra/Inter
   int last_boosted_qindex;         // Last boosted GF/KF/ARF q
 
   int gfu_boost;
diff --git a/vp9/encoder/vp9_svc_layercontext.c b/vp9/encoder/vp9_svc_layercontext.c
index 48aa64c13..95ea1072d 100644
--- a/vp9/encoder/vp9_svc_layercontext.c
+++ b/vp9/encoder/vp9_svc_layercontext.c
@@ -50,9 +50,8 @@ void vp9_init_layer_context(VP9_COMP *const cpi) {
       lrc->last_q[INTER_FRAME] = oxcf->worst_allowed_q;
     } else {
       lc->target_bandwidth = oxcf->ss_target_bitrate[layer];
-      lrc->last_q[0] = oxcf->best_allowed_q;
-      lrc->last_q[1] = oxcf->best_allowed_q;
-      lrc->last_q[2] = oxcf->best_allowed_q;
+      lrc->last_q[KEY_FRAME] = oxcf->best_allowed_q;
+      lrc->last_q[INTER_FRAME] = oxcf->best_allowed_q;
     }
 
     lrc->buffer_level = vp9_rescale((int)(oxcf->starting_buffer_level),