diff --git a/libavcodec/on2avc.c b/libavcodec/on2avc.c
index 3f531bc83bc455c93dd86953f73463a37d5f969f..3918365a0193b54b8dc9152d3f20f94c0b1e5bc0 100644
--- a/libavcodec/on2avc.c
+++ b/libavcodec/on2avc.c
@@ -211,9 +211,16 @@ static inline int get_egolomb(GetBitContext *gb)
 {
     int v = 4;
 
-    while (get_bits1(gb)) v++;
+    while (get_bits1(gb)) {
+        v++;
+        if (v > 30) {
+            av_log(NULL, AV_LOG_WARNING, "Too large golomb code in get_egolomb.\n");
+            v = 30;
+            break;
+        }
+    }
 
-    return (1 << v) + get_bits(gb, v);
+    return (1 << v) + get_bits_long(gb, v);
 }
 
 static int on2avc_decode_pairs(On2AVCContext *c, GetBitContext *gb, float *dst,