possible endless loop above 24 bits

2017-10-07 11:47:39 +02:00 · 2017-10-07 11:47:39 +02:00 · 638ce5bbd7
commit 638ce5bbd7
parent c517ccc2df
1 changed files with 4 additions and 0 deletions
--- a/brouter-util/src/main/java/btools/util/BitCoderContext.java
+++ b/brouter-util/src/main/java/btools/util/BitCoderContext.java
@ -72,6 +72,10 @@ public class BitCoderContext
    int range = 1;
    int cnt = 1;
    fillBuffer();
+    if ( (b & 0xffffff ) == 0 )
+    {
+      return decodeVarBits2(); // fast version limited to 24 bit
+    }
    while ((b & range) == 0)
    {
      range = (range << 1) | 1;