diff --git a/common/src/utils/dcamera_utils_tools.cpp b/common/src/utils/dcamera_utils_tools.cpp
index 189954f37fba76a64d542d85e4681b362b9f6765..569bd849ec4012de52cfbd2955412f9fe26bd8b2 100644
--- a/common/src/utils/dcamera_utils_tools.cpp
+++ b/common/src/utils/dcamera_utils_tools.cpp
@@ -79,6 +79,9 @@ int32_t GetAlignedHeight(int32_t width)
 std::string Base64Encode(const unsigned char *toEncode, unsigned int len)
 {
     std::string ret;
+    if (!toEncode || len == 0) {
+        return ret;
+    }
     uint32_t i = 0;
     unsigned char charArray3[3];
     unsigned char charArray4[4];