shithub: libvpx

Info  •  Files  •  Log  •  Branches

Structure the multi-layer ARF locations

Fine tune the multi-layer ARF location decisions. Support deeper
layer structure.

Change-Id: I3e44cf52b6813f6267bcd7266f9aa1b7ded57f8e

--- a/vp9/encoder/vp9_firstpass.c

+++ b/vp9/encoder/vp9_firstpass.c

@@ -2335,11 +2335,11 @@

 static void find_arf_order(GF_GROUP *gf_group, int *layer_depth,

                            int *index_counter, int depth, int start, int end) {

-  const int mid = (start + end + 1) >> 1;

+  const int mid = (start + end) >> 1;

   const int min_frame_interval = 3;

   // Process regular P frames

-  if (end - start <= min_frame_interval) {

+  if (end - start < min_frame_interval) {

     int idx;

     for (idx = start; idx < end; ++idx) {

       gf_group->update_type[*index_counter] = LF_UPDATE;

@@ -2350,7 +2350,7 @@

     return;

   }

-  assert(abs(mid - start) > 1 && abs(mid - end) > 1);

+  assert(abs(mid - start) >= 1 && abs(mid - end) >= 1);

   // Process ARF frame

   layer_depth[*index_counter] = depth;