diff --git a/src/Extension/Frame.cpp b/src/Extension/Frame.cpp
index 05eaee3e..2c204e19 100644
--- a/src/Extension/Frame.cpp
+++ b/src/Extension/Frame.cpp
@@ -39,7 +39,7 @@ Frame::Ptr Frame::getCacheAbleFrame(const Frame::Ptr &frame){
 }
 
 #define SWITCH_CASE(codec_id) case codec_id : return #codec_id
-char *CodecInfo::getCodecName() {
+const char *CodecInfo::getCodecName() {
     switch (getCodecId()) {
         SWITCH_CASE(CodecH264);
         SWITCH_CASE(CodecH265);
diff --git a/src/Extension/Frame.h b/src/Extension/Frame.h
index 4819c5f1..66218b0c 100644
--- a/src/Extension/Frame.h
+++ b/src/Extension/Frame.h
@@ -77,7 +77,7 @@ public:
      * 获取编码器名称
      * @return 编码器名称
      */
-    char *getCodecName();
+    const char *getCodecName();
 };
 
 /**