shithub: libvpx

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vp9-svc: Fix the bitrate control for spatial svc

Make sure to initialize the layer context for spatial-svc
which has a single temporal layer.

Change-Id: I026ecec483555658e09d6d8893e56ab62ee6914b
(cherry picked from commit 1e9929390c8c18ffda02e0073481625e5afb2529)

--- a/AUTHORS

+++ b/AUTHORS

@@ -169,6 +169,7 @@

 Shiyou Yin <yinshiyou-hf@loongson.cn>

 Shubham Tandle <shubham.tandle@ittiam.com>

 Shunyao Li <shunyaoli@google.com>

+Sreerenj Balachandran <bsreerenj@gmail.com>

 Stefan Holmer <holmer@google.com>

 Suman Sunkara <sunkaras@google.com>

 Supradeep T R <supradeep.tr@ittiam.com>

--- a/vp9/ratectrl_rtc.cc

+++ b/vp9/ratectrl_rtc.cc

@@ -107,7 +107,8 @@

   }

   vp9_set_rc_buffer_sizes(cpi_);

   vp9_new_framerate(cpi_, cpi_->framerate);

-  if (cpi_->svc.number_temporal_layers > 1) {

+  if (cpi_->svc.number_temporal_layers > 1 ||

+      cpi_->svc.number_spatial_layers > 1) {

     if (cm->current_video_frame == 0) vp9_init_layer_context(cpi_);

     vp9_update_layer_context_change_config(cpi_,

                                            (int)cpi_->oxcf.target_bandwidth);