Expose dual filter & order hint as aomenc options

Allows these tools to be toggled by the encoder.

Change-Id: If0c1f5a5989f203c018c0fb8ce808cf1e970b152
diff --git a/aom/aomcx.h b/aom/aomcx.h
index b4f7a7a..896945a 100644
--- a/aom/aomcx.h
+++ b/aom/aomcx.h
@@ -757,6 +757,15 @@
    */
   AV1E_SET_ALLOW_REF_FRAME_MVS,
 
+  /*!\brief Codec control function to turn on / off dual filter usage
+   * for a sequence.
+   *
+   * This will enable or disable use of dual interpolation filter.
+   * The default value is 1.
+   *
+   */
+  AV1E_SET_ENABLE_DUAL_FILTER,
+
   /*!\brief Codec control function to turn on / off masked compound usage
    * for a sequence.
    *
@@ -1086,6 +1095,9 @@
 AOM_CTRL_USE_TYPE(AV1E_SET_ALLOW_REF_FRAME_MVS, unsigned int)
 #define AOM_CTRL_AV1E_SET_ALLOW_REF_FRAME_MVS
 
+AOM_CTRL_USE_TYPE(AV1E_SET_ENABLE_DUAL_FILTER, unsigned int)
+#define AOM_CTRL_AV1E_SET_ENABLE_DUAL_FILTER
+
 AOM_CTRL_USE_TYPE(AV1E_SET_ENABLE_MASKED_COMP, unsigned int)
 #define AOM_CTRL_AV1E_SET_ENABLE_MASKED_COMP
 
diff --git a/apps/aomenc.c b/apps/aomenc.c
index d187e1b..dda82f6 100644
--- a/apps/aomenc.c
+++ b/apps/aomenc.c
@@ -437,6 +437,14 @@
     ARG_DEF(NULL, "enable-restoration", 1,
             "Enable the loop restoration filter (0: false, "
             "1: true (default))");
+static const arg_def_t enable_dual_filter =
+    ARG_DEF(NULL, "enable-dual-filter", 1,
+            "Enable dual filter "
+            "(0: false, 1: true (default))");
+static const arg_def_t enable_order_hint =
+    ARG_DEF(NULL, "enable-order-hint", 1,
+            "Enable order hint "
+            "(0: false, 1: true (default))");
 static const arg_def_t enable_jnt_comp =
     ARG_DEF(NULL, "enable-dist-wtd-comp", 1,
             "Enable distance-weighted compound "
@@ -662,6 +670,8 @@
                                        &lossless,
                                        &enable_cdef,
                                        &enable_restoration,
+                                       &enable_dual_filter,
+                                       &enable_order_hint,
                                        &enable_jnt_comp,
                                        &enable_masked_comp,
                                        &enable_interintra_comp,
@@ -727,6 +737,8 @@
                                         AV1E_SET_LOSSLESS,
                                         AV1E_SET_ENABLE_CDEF,
                                         AV1E_SET_ENABLE_RESTORATION,
+                                        AV1E_SET_ENABLE_DUAL_FILTER,
+                                        AV1E_SET_ENABLE_ORDER_HINT,
                                         AV1E_SET_ENABLE_JNT_COMP,
                                         AV1E_SET_ENABLE_MASKED_COMP,
                                         AV1E_SET_ENABLE_INTERINTRA_COMP,
@@ -767,7 +779,6 @@
 #endif
                                         AV1E_SET_ENABLE_REF_FRAME_MVS,
                                         AV1E_SET_ENABLE_DF,
-                                        AV1E_SET_ENABLE_ORDER_HINT,
                                         AV1E_SET_ENABLE_SUPERRES,
                                         0 };
 #endif  // CONFIG_AV1_ENCODER
diff --git a/av1/av1_cx_iface.c b/av1/av1_cx_iface.c
index 0cee628..13d46f4 100644
--- a/av1/av1_cx_iface.c
+++ b/av1/av1_cx_iface.c
@@ -72,7 +72,7 @@
 
   aom_timing_info_type_t timing_info_type;
   unsigned int frame_parallel_decoding_mode;
-  int use_dual_filter;
+  int enable_dual_filter;
   AQ_MODE aq_mode;
   DELTAQ_MODE deltaq_mode;
   unsigned int frame_periodic_boost;
@@ -671,7 +671,7 @@
 
   oxcf->monochrome = cfg->monochrome;
   oxcf->full_still_picture_hdr = cfg->full_still_picture_hdr;
-  oxcf->enable_dual_filter = extra_cfg->use_dual_filter;
+  oxcf->enable_dual_filter = extra_cfg->enable_dual_filter;
   oxcf->enable_order_hint = extra_cfg->enable_order_hint;
   oxcf->enable_jnt_comp =
       extra_cfg->enable_jnt_comp & extra_cfg->enable_order_hint;
@@ -1032,7 +1032,7 @@
 static aom_codec_err_t ctrl_set_enable_df(aom_codec_alg_priv_t *ctx,
                                           va_list args) {
   struct av1_extracfg extra_cfg = ctx->extra_cfg;
-  extra_cfg.use_dual_filter = CAST(AV1E_SET_ENABLE_DF, args);
+  extra_cfg.enable_dual_filter = CAST(AV1E_SET_ENABLE_DF, args);
   return update_extra_cfg(ctx, &extra_cfg);
 }