commit 84a44dbee7bb4abde9aeb9fc5b3f304ab79ff8f8
author David Michael Barr <b@rr-dav.id.au> Tue May 16 23:31:09 2017 +0900
committer Nathan Egge <negge@mozilla.com> Wed May 24 17:07:28 2017 +0000
tree 6daa20e9a174c95dfa52e93b01d061fa2a4dc579
parent 6675adff2e38eb5732522fa0d6c16c3dd0ca46c9

[CFL] Calculate SSE for distinct alpha before RDO

Separate the codes into a table of distinct values
and an index into that table.
Pull the SSE calculation of the RDO loop and avoid
repeating for the same alpha values.

Change-Id: I8c4bd7eab6f8000e6aca9687d9190abc3e270c37
Signed-off-by: David Michael Barr <b@rr-dav.id.au>

av1/decoder/decodemv.c

diff --git a/av1/decoder/decodemv.c b/av1/decoder/decodemv.c
index 77fd713..d8cc525 100644
--- a/av1/decoder/decodemv.c
+++ b/av1/decoder/decodemv.c
@@ -220,10 +220,10 @@
     // Signs are only coded for nonzero values
     // sign == 0 implies negative alpha
     // sign == 1 implies positive alpha
-    signs_out[CFL_PRED_U] = (cfl_alpha_codes[ind][CFL_PRED_U] != 0.0)
+    signs_out[CFL_PRED_U] = cfl_alpha_codes[ind][CFL_PRED_U]
                                 ? aom_read_bit(r, "cfl:sign")
                                 : CFL_SIGN_POS;
-    signs_out[CFL_PRED_V] = (cfl_alpha_codes[ind][CFL_PRED_V] != 0.0)
+    signs_out[CFL_PRED_V] = cfl_alpha_codes[ind][CFL_PRED_V]
                                 ? aom_read_bit(r, "cfl:sign")
                                 : CFL_SIGN_POS;