diff --git a/frameworks/native/common/avcodec_errors.cpp b/frameworks/native/common/avcodec_errors.cpp
index d74c529301fe69e45a2a06bae17a0b4de6214314..c42f9a8d78ea3148d859d67aed7517ab2e8de962 100644
--- a/frameworks/native/common/avcodec_errors.cpp
+++ b/frameworks/native/common/avcodec_errors.cpp
@@ -133,7 +133,7 @@ std::string ErrorMessageOk(const std::string& param1, const std::string& param2)
 
 std::string ErrorMessageNoPermission(const std::string& param1, const std::string& param2)
 {
-    std::string message = "Try to do " + param1 + " failed. User should request permission " + param2 +" first.";
+    std::string message = "Try to do " + param1 + " failed. User should request permission " + param2 + " first.";
     return message;
 }
 
diff --git a/services/engine/source/source.cpp b/services/engine/source/source.cpp
index 288fe4d4bb3115d717d1d093b1625d888e6e8eb4..c2714d60a8106d7a6b076fab670a572275404f47 100644
--- a/services/engine/source/source.cpp
+++ b/services/engine/source/source.cpp
@@ -38,7 +38,7 @@ namespace Plugin {
 namespace {
     constexpr OHOS::HiviewDFX::HiLogLabel LABEL = {LOG_CORE, LOG_DOMAIN, "Source"};
 
-    inline bool FileIsExists (const char* name)
+    inline bool FileIsExists(const char* name)
     {
         struct stat buffer;
         return (stat(name, &buffer) == 0);
@@ -565,10 +565,10 @@ int Source::AVReadPacket(void *opaque, uint8_t *buf, int bufSize)
                          customIOContext->offset, customIOContext->fileSize);
             return AVCS_ERR_SEEK_FAILED;
         }
-        if (static_cast<size_t>(customIOContext->offset+bufSize) > customIOContext->fileSize) {
+        if (static_cast<size_t>(customIOContext->offset + bufSize) > customIOContext->fileSize) {
             readSize = customIOContext->fileSize - customIOContext->offset;
         }
-        if (buf!=nullptr && bufferVector->GetMemory()!=nullptr) {
+        if (buf != nullptr && bufferVector->GetMemory() != nullptr) {
             auto memSize = static_cast<int>(bufferVector->GetMemory()->GetCapacity());
             readSize = (readSize > memSize) ? memSize : readSize;
         }
@@ -589,7 +589,7 @@ int Source::AVReadPacket(void *opaque, uint8_t *buf, int bufSize)
             customIOContext->offset += rtv;
             customIOContext->position += rtv;
         } else if (static_cast<int>(result) == 1) {
-            customIOContext->eof=true;
+            customIOContext->eof = true;
             rtv = AVERROR_EOF;
         } else {
             AVCODEC_LOGE("AVReadPacket failed with rtv = %{public}d", static_cast<int>(result));