[FFmpeg-devel] [PATCH] vc1dec: fix sign of pointer-to-scantable variables

[Reimar Döffinger]

Hello,
the scantables only contain positive values < 128 and their type is uint8_t.
As such I think the zz_table variables in vc1dec.c should be uint8_t
as well instead of int8_t.

Index: libavcodec/vc1dec.c
===================================================================
--- libavcodec/vc1dec.c (revision 23830)
+++ libavcodec/vc1dec.c (working copy)
@@ -1481,7 +1481,7 @@
 
     {
         int last = 0, skip, value;
-        const int8_t *zz_table;
+        const uint8_t *zz_table;
         int scale;
         int k;
 
@@ -1667,7 +1667,7 @@
 
     if(coded) {
         int last = 0, skip, value;
-        const int8_t *zz_table;
+        const uint8_t *zz_table;
         int k;
 
         if(v->s.ac_pred) {
@@ -1874,7 +1874,7 @@
 
     if(coded) {
         int last = 0, skip, value;
-        const int8_t *zz_table;
+        const uint8_t *zz_table;
         int k;
 
         zz_table = wmv1_scantable[0];