FPMT: Abstract fb_of_context_type to AV1_PRIMARY

Moved fb_of_context_type from AV1_COMP to AV1_PRIMARY.

Change-Id: I04bb1d59c54f6673df074048a2aa6292e69d01a9
diff --git a/av1/encoder/encode_strategy.c b/av1/encoder/encode_strategy.c
index c79b38e..c6e3852 100644
--- a/av1/encoder/encode_strategy.c
+++ b/av1/encoder/encode_strategy.c
@@ -255,7 +255,7 @@
   // Find the most recent reference frame with the same reference type as the
   // current frame
   const int current_ref_type = get_current_frame_ref_type(cpi, frame_params);
-  int wanted_fb = cpi->fb_of_context_type[current_ref_type];
+  int wanted_fb = cpi->ppi->fb_of_context_type[current_ref_type];
 
   int primary_ref_frame = PRIMARY_REF_NONE;
   for (int ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ref_frame++) {
@@ -1848,7 +1848,7 @@
   }
 
   if (!is_stat_generation_stage(cpi)) {
-    update_fb_of_context_type(cpi, &frame_params, cpi->fb_of_context_type);
+    update_fb_of_context_type(cpi, &frame_params, cpi->ppi->fb_of_context_type);
     set_additional_frame_flags(cm, frame_flags);
     update_rc_counts(cpi);
   }
diff --git a/av1/encoder/encoder.h b/av1/encoder/encoder.h
index 6ce16e7..38cd47d 100644
--- a/av1/encoder/encoder.h
+++ b/av1/encoder/encoder.h
@@ -2363,6 +2363,14 @@
    */
   FRAME_COUNTS aggregate_fc;
 #endif  // CONFIG_ENTROPY_STATS
+
+  /*!
+   * For each type of reference frame, this contains the index of a reference
+   * frame buffer for a reference frame of the same type.  We use this to
+   * choose our primary reference frame (which is the most recent reference
+   * frame of the same type as the current frame).
+   */
+  int fb_of_context_type[REF_FRAMES];
 } AV1_PRIMARY;
 
 /*!
@@ -2509,14 +2517,6 @@
   RefreshFrameFlagsInfo refresh_frame;
 
   /*!
-   * For each type of reference frame, this contains the index of a reference
-   * frame buffer for a reference frame of the same type.  We use this to
-   * choose our primary reference frame (which is the most recent reference
-   * frame of the same type as the current frame).
-   */
-  int fb_of_context_type[REF_FRAMES];
-
-  /*!
    * Flags signalled by the external interface at frame level.
    */
   ExternalFlags ext_flags;