Merge "Re-factor some duplicate code."

vp9/encoder/vp9_firstpass.c

@@ -1576,7 +1576,7 @@ static void define_gf_group(VP9_COMP *cpi, FIRSTPASS_STATS *this_frame) {
 
     // Break out conditions.
     if (
-      // Break at cpi->max_gf_interval unless almost totally static.
+      // Break at active_max_gf_interval unless almost totally static.
       (i >= active_max_gf_interval && (zero_motion_accumulator < 0.995)) ||
       (
         // Don't break out with a very short interval.

vp9/encoder/vp9_ratectrl.c

@@ -1388,6 +1388,24 @@ int vp9_compute_qdelta_by_rate(const RATE_CONTROL *rc, FRAME_TYPE frame_type,
   return target_index - qindex;
 }
 
+void vp9_rc_set_gf_max_interval(const VP9EncoderConfig *const oxcf,
+                                RATE_CONTROL *const rc) {
+  // Set Maximum gf/arf interval
+  rc->max_gf_interval = 16;
+
+  // Extended interval for genuinely static scenes
+  rc->static_scene_max_gf_interval = oxcf->key_freq >> 1;
+
+  // Special conditions when alt ref frame enabled
+  if (oxcf->play_alternate && oxcf->lag_in_frames) {
+    if (rc->static_scene_max_gf_interval > oxcf->lag_in_frames - 1)
+      rc->static_scene_max_gf_interval = oxcf->lag_in_frames - 1;
+  }
+
+  if (rc->max_gf_interval > rc->static_scene_max_gf_interval)
+    rc->max_gf_interval = rc->static_scene_max_gf_interval;
+}
+
 void vp9_rc_update_framerate(VP9_COMP *cpi) {
   const VP9_COMMON *const cm = &cpi->common;
   const VP9EncoderConfig *const oxcf = &cpi->oxcf;
@@ -1412,21 +1430,5 @@ void vp9_rc_update_framerate(VP9_COMP *cpi) {
   rc->max_frame_bandwidth = MAX(MAX((cm->MBs * MAX_MB_RATE), MAXRATE_1080P),
                                     vbr_max_bits);
 
-  // Set Maximum gf/arf interval
-  rc->max_gf_interval = 16;
-
-  // Extended interval for genuinely static scenes
-  rc->static_scene_max_gf_interval = cpi->oxcf.key_freq >> 1;
-
-  // Special conditions when alt ref frame enabled in lagged compress mode
-  if (oxcf->play_alternate && oxcf->lag_in_frames) {
-    if (rc->max_gf_interval > oxcf->lag_in_frames - 1)
-      rc->max_gf_interval = oxcf->lag_in_frames - 1;
-
-    if (rc->static_scene_max_gf_interval > oxcf->lag_in_frames - 1)
-      rc->static_scene_max_gf_interval = oxcf->lag_in_frames - 1;
-  }
-
-  if (rc->max_gf_interval > rc->static_scene_max_gf_interval)
-    rc->max_gf_interval = rc->static_scene_max_gf_interval;
+  vp9_rc_set_gf_max_interval(oxcf, rc);
 }

vp9/encoder/vp9_ratectrl.h

@@ -178,6 +178,9 @@ int vp9_compute_qdelta_by_rate(const RATE_CONTROL *rc, FRAME_TYPE frame_type,
 
 void vp9_rc_update_framerate(struct VP9_COMP *cpi);
 
+void vp9_rc_set_gf_max_interval(const struct VP9EncoderConfig *const oxcf,
+                                RATE_CONTROL *const rc);
+
 #ifdef __cplusplus
 }  // extern "C"
 #endif

vp9/encoder/vp9_svc_layercontext.c

@@ -149,20 +149,7 @@ void vp9_update_spatial_layer_framerate(VP9_COMP *const cpi, double framerate) {
                                    oxcf->two_pass_vbrmin_section / 100);
   lrc->max_frame_bandwidth = (int)(((int64_t)lrc->avg_frame_bandwidth *
                                    oxcf->two_pass_vbrmax_section) / 100);
-  lrc->max_gf_interval = 16;
-
-  lrc->static_scene_max_gf_interval = cpi->oxcf.key_freq >> 1;
-
-  if (oxcf->play_alternate && oxcf->lag_in_frames) {
-    if (lrc->max_gf_interval > oxcf->lag_in_frames - 1)
-      lrc->max_gf_interval = oxcf->lag_in_frames - 1;
-
-    if (lrc->static_scene_max_gf_interval > oxcf->lag_in_frames - 1)
-      lrc->static_scene_max_gf_interval = oxcf->lag_in_frames - 1;
-  }
-
-  if (lrc->max_gf_interval > lrc->static_scene_max_gf_interval)
-    lrc->max_gf_interval = lrc->static_scene_max_gf_interval;
+  vp9_rc_set_gf_max_interval(oxcf, lrc);
 }
 
 void vp9_restore_layer_context(VP9_COMP *const cpi) {