shithub: libvpx

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vp9-svc: Allow scale_references for single layer svc

This is needed to allow for newmv search in nonrd_pickmode
for resize/scaled frame, and for int_pro_motion_estimation
on resized/scaled frame.

Change-Id: I5e2fdbc4706a10813c1b00f6194e2442f648905a

--- a/vp9/encoder/vp9_encoder.c

+++ b/vp9/encoder/vp9_encoder.c

@@ -4040,8 +4040,11 @@

   // For 1 pass CBR SVC, only ZEROMV is allowed for spatial reference frame

   // when svc->force_zero_mode_spatial_ref = 1. Under those conditions we can

   // avoid this frame-level upsampling (for non intra_only frames).

+  // For SVC single_layer mode, dynamic resize is allowed and we need to

+  // scale references for this case.

   if (frame_is_intra_only(cm) == 0 &&

-      !(is_one_pass_cbr_svc(cpi) && svc->force_zero_mode_spatial_ref)) {

+      ((svc->single_layer_svc && cpi->oxcf.resize_mode == RESIZE_DYNAMIC) ||

+       !(is_one_pass_cbr_svc(cpi) && svc->force_zero_mode_spatial_ref))) {

     vp9_scale_references(cpi);

   }