libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_svc_layercontext.c

Index: source/libvpx/vp9/encoder/vp9_svc_layercontext.c
===================================================================
--- source/libvpx/vp9/encoder/vp9_svc_layercontext.c	(revision 278778)
+++ source/libvpx/vp9/encoder/vp9_svc_layercontext.c	(working copy)
@@ -46,16 +46,15 @@
     lrc->key_frame_rate_correction_factor = 1.0;
 
     if (svc->number_temporal_layers > 1) {
-      lc->target_bandwidth = oxcf->ts_target_bitrate[layer] * 1000;
+      lc->target_bandwidth = oxcf->ts_target_bitrate[layer];
       lrc->last_q[INTER_FRAME] = oxcf->worst_allowed_q;
     } else {
-      lc->target_bandwidth = oxcf->ss_target_bitrate[layer] * 1000;
-      lrc->last_q[0] = oxcf->best_allowed_q;
-      lrc->last_q[1] = oxcf->best_allowed_q;
-      lrc->last_q[2] = oxcf->best_allowed_q;
+      lc->target_bandwidth = oxcf->ss_target_bitrate[layer];
+      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),
+    lrc->buffer_level = vp9_rescale((int)(oxcf->starting_buffer_level_ms),
                                     lc->target_bandwidth, 1000);
     lrc->bits_off_target = lrc->buffer_level;
   }
@@ -82,20 +81,20 @@
     RATE_CONTROL *const lrc = &lc->rc;
 
     if (svc->number_temporal_layers > 1) {
-      lc->target_bandwidth = oxcf->ts_target_bitrate[layer] * 1000;
+      lc->target_bandwidth = oxcf->ts_target_bitrate[layer];
     } else {
-      lc->target_bandwidth = oxcf->ss_target_bitrate[layer] * 1000;
+      lc->target_bandwidth = oxcf->ss_target_bitrate[layer];
     }
     bitrate_alloc = (float)lc->target_bandwidth / target_bandwidth;
     // Update buffer-related quantities.
-    lc->starting_buffer_level =
-        (int64_t)(oxcf->starting_buffer_level * bitrate_alloc);
-    lc->optimal_buffer_level =
-        (int64_t)(oxcf->optimal_buffer_level * bitrate_alloc);
-    lc->maximum_buffer_size =
-        (int64_t)(oxcf->maximum_buffer_size * bitrate_alloc);
-    lrc->bits_off_target = MIN(lrc->bits_off_target, lc->maximum_buffer_size);
-    lrc->buffer_level = MIN(lrc->buffer_level, lc->maximum_buffer_size);
+    lrc->starting_buffer_level =
+        (int64_t)(rc->starting_buffer_level * bitrate_alloc);
+    lrc->optimal_buffer_level =
+        (int64_t)(rc->optimal_buffer_level * bitrate_alloc);
+    lrc->maximum_buffer_size =
+        (int64_t)(rc->maximum_buffer_size * bitrate_alloc);
+    lrc->bits_off_target = MIN(lrc->bits_off_target, lrc->maximum_buffer_size);
+    lrc->buffer_level = MIN(lrc->buffer_level, lrc->maximum_buffer_size);
     // Update framerate-related quantities.
     if (svc->number_temporal_layers > 1) {
       lc->framerate = oxcf->framerate / oxcf->ts_rate_decimator[layer];
@@ -132,8 +131,7 @@
   } else {
     const double prev_layer_framerate =
         oxcf->framerate / oxcf->ts_rate_decimator[layer - 1];
-    const int prev_layer_target_bandwidth =
-        oxcf->ts_target_bitrate[layer - 1] * 1000;
+    const int prev_layer_target_bandwidth = oxcf->ts_target_bitrate[layer - 1];
     lc->avg_frame_size =
         (int)((lc->target_bandwidth - prev_layer_target_bandwidth) /
               (lc->framerate - prev_layer_framerate));
@@ -151,20 +149,7 @@
                                    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) {
@@ -175,9 +160,6 @@
   cpi->rc = lc->rc;
   cpi->twopass = lc->twopass;
   cpi->oxcf.target_bandwidth = lc->target_bandwidth;
-  cpi->oxcf.starting_buffer_level = lc->starting_buffer_level;
-  cpi->oxcf.optimal_buffer_level = lc->optimal_buffer_level;
-  cpi->oxcf.maximum_buffer_size = lc->maximum_buffer_size;
   // Reset the frames_since_key and frames_to_key counters to their values
   // before the layer restore. Keep these defined for the stream (not layer).
   if (cpi->svc.number_temporal_layers > 1) {
@@ -193,9 +175,6 @@
   lc->rc = cpi->rc;
   lc->twopass = cpi->twopass;
   lc->target_bandwidth = (int)oxcf->target_bandwidth;
-  lc->starting_buffer_level = oxcf->starting_buffer_level;
-  lc->optimal_buffer_level = oxcf->optimal_buffer_level;
-  lc->maximum_buffer_size = oxcf->maximum_buffer_size;
 }
 
 void vp9_init_second_pass_spatial_svc(VP9_COMP *cpi) {
@@ -203,7 +182,7 @@
   int i;
 
   for (i = 0; i < svc->number_spatial_layers; ++i) {
-    struct twopass_rc *const twopass = &svc->layer_context[i].twopass;
+    TWO_PASS *const twopass = &svc->layer_context[i].twopass;
 
     svc->spatial_layer_id = i;
     vp9_init_second_pass(cpi);