Don't reset sign_bias fields in vp10_setup_past_independence().

The fields are always coded in the frame itself, so there is never any
dependency on past frames. In practice, this fixes sign_bias being
ignored when error_resilient_mode=1.

See issue 1011.

Change-Id: I9d134ef6b445ced4d100fa735ce579855a0fa5af

diff --git a/vp10/common/entropymode.c b/vp10/common/entropymode.c
index cdb6ab9ea04ccab6d9d2178ed37839f34c6ef928..0622a7d2cdf9aa445d0b3e98ab7ce0a10b0f8d92 100644 (file)
--- a/vp10/common/entropymode.c
+++ b/vp10/common/entropymode.c
@@ -463,7 +463,5 @@ void vp10_setup_past_independence(VP10_COMMON *cm) {
     memset(cm->prev_mip, 0,
            cm->mi_stride * (cm->mi_rows + 1) * sizeof(*cm->prev_mip));
 
-  vp10_zero(cm->ref_frame_sign_bias);
-
   cm->frame_context_idx = 0;
 }