shithub: libvpx

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vp9-svc: Fix key frame update refresh simulcast flexible svc

For flexible svc in simulcast mode: don't allow refresh
of all reference slots on key frame. Which slots to update
should be based on the user flags.

Change-Id: I3597c61ebcdfed2055bbdffec7ce701fad892744

--- a/vp9/encoder/vp9_svc_layercontext.c

+++ b/vp9/encoder/vp9_svc_layercontext.c

@@ -1259,7 +1259,7 @@

   BufferPool *const pool = cm->buffer_pool;

   int i;

   for (i = 0; i < REF_FRAMES; i++) {

-    if (cm->frame_type == KEY_FRAME ||

+    if ((cm->frame_type == KEY_FRAME && !svc->simulcast_mode) ||

         svc->update_buffer_slot[svc->spatial_layer_id] & (1 << i)) {

       ref_cnt_fb(pool->frame_bufs, &cm->ref_frame_map[i], cm->new_fb_idx);

       svc->fb_idx_spatial_layer_id[i] = svc->spatial_layer_id;