Make KF_DISABLED work for rtc

Change-Id: Ie348bd1ebcfcb284ba78494c02cc55f4bc025e24

av1/av1_cx_iface.c

diff --git a/av1/av1_cx_iface.c b/av1/av1_cx_iface.c
index f4d7823..4764ed5 100644
--- a/av1/av1_cx_iface.c
+++ b/av1/av1_cx_iface.c
@@ -2712,7 +2712,7 @@
 #endif
 
   // Handle fixed keyframe intervals
-  if (is_stat_generation_stage(ppi->cpi)) {
+  if (is_stat_generation_stage(ppi->cpi) || is_one_pass_rt_params(ppi->cpi)) {
     if (ctx->cfg.kf_mode == AOM_KF_AUTO &&
         ctx->cfg.kf_min_dist == ctx->cfg.kf_max_dist) {
       if (ppi->cpi->common.spatial_layer_id == 0 &&

av1/encoder/ratectrl.c

diff --git a/av1/encoder/ratectrl.c b/av1/encoder/ratectrl.c
index c916eb3..9ee0c3a 100644
--- a/av1/encoder/ratectrl.c
+++ b/av1/encoder/ratectrl.c
@@ -2303,11 +2303,15 @@
     av1_cyclic_refresh_set_golden_update(cpi);
   else
     p_rc->baseline_gf_interval = FIXED_GF_INTERVAL;
-  if (p_rc->baseline_gf_interval > rc->frames_to_key)
+  if (p_rc->baseline_gf_interval > rc->frames_to_key &&
+      cpi->oxcf.kf_cfg.auto_key)
     p_rc->baseline_gf_interval = rc->frames_to_key;
   p_rc->gfu_boost = DEFAULT_GF_BOOST_RT;
   p_rc->constrained_gf_group =
-      (p_rc->baseline_gf_interval >= rc->frames_to_key) ? 1 : 0;
+      (p_rc->baseline_gf_interval >= rc->frames_to_key &&
+       cpi->oxcf.kf_cfg.auto_key)
+          ? 1
+          : 0;
   rc->frames_till_gf_update_due = p_rc->baseline_gf_interval;
   cpi->gf_frame_index = 0;
   // SVC does not use GF as periodic boost.
@@ -2748,6 +2752,30 @@
   return;
 }
 
+static INLINE int set_key_frame(AV1_COMP *cpi, unsigned int frame_flags) {
+  RATE_CONTROL *const rc = &cpi->rc;
+  AV1_COMMON *const cm = &cpi->common;
+  SVC *const svc = &cpi->svc;
+
+  // Very first frame has to be key frame.
+  if (cm->current_frame.frame_number == 0) return 1;
+  // Set key frame if forced by frame flags.
+  if (frame_flags & FRAMEFLAGS_KEY) return 1;
+  if (!cpi->ppi->use_svc) {
+    // Non-SVC
+    if (cpi->oxcf.kf_cfg.auto_key && rc->frames_to_key == 0) return 1;
+  } else {
+    // SVC
+    if (svc->spatial_layer_id == 0 &&
+        (cpi->oxcf.kf_cfg.auto_key &&
+         (cpi->oxcf.kf_cfg.key_freq_max == 0 ||
+          svc->current_superframe % cpi->oxcf.kf_cfg.key_freq_max == 0)))
+      return 1;
+  }
+
+  return 0;
+}
+
 void av1_get_one_pass_rt_params(AV1_COMP *cpi,
                                 EncodeFrameParams *const frame_params,
                                 unsigned int frame_flags) {
@@ -2769,11 +2797,7 @@
     av1_restore_layer_context(cpi);
   }
   // Set frame type.
-  if ((!cpi->ppi->use_svc && rc->frames_to_key == 0) ||
-      (cpi->ppi->use_svc && svc->spatial_layer_id == 0 &&
-       (cpi->oxcf.kf_cfg.key_freq_max == 0 ||
-        svc->current_superframe % cpi->oxcf.kf_cfg.key_freq_max == 0)) ||
-      (frame_flags & FRAMEFLAGS_KEY)) {
+  if (set_key_frame(cpi, frame_flags)) {
     frame_params->frame_type = KEY_FRAME;
     p_rc->this_key_frame_forced =
         cm->current_frame.frame_number != 0 && rc->frames_to_key == 0;