shithub: libvpx

Download patch

ref: 05e850cb9e75b96c0a4f656c9dbcbe4bb761e52c
parent: bfaf415ea7a90af4f093733d5e0a115f73d03930
author: Yaowu Xu <yaowu@google.com>
date: Sat Feb 22 07:41:06 EST 2014 

added clamp of segment loop filter level

for ABSDATA mode, so segment loop filter level always fall in valid
range for both Absolute and delta modes.

Change-Id: If90df3411479533dbdab63f8ae088d2f5dd174a9


--- a/vp9/common/vp9_loopfilter.c
+++ b/vp9/common/vp9_loopfilter.c
@@ -262,9 +262,9 @@
     int lvl_seg = default_filt_lvl;
     if (vp9_segfeature_active(seg, seg_id, SEG_LVL_ALT_LF)) {
       const int data = vp9_get_segdata(seg, seg_id, SEG_LVL_ALT_LF);
-      lvl_seg = seg->abs_delta == SEGMENT_ABSDATA
-                  ? data
-                  : clamp(default_filt_lvl + data, 0, MAX_LOOP_FILTER);
+      lvl_seg = clamp(seg->abs_delta == SEGMENT_ABSDATA ?
+                      data : default_filt_lvl + data,
+                      0, MAX_LOOP_FILTER);
     }
 
     if (!lf->mode_ref_delta_enabled) {