diff --git a/mpp/codec/CMakeLists.txt b/mpp/codec/CMakeLists.txt
index b75970a7..4c27a15d 100644
--- a/mpp/codec/CMakeLists.txt
+++ b/mpp/codec/CMakeLists.txt
@@ -7,7 +7,6 @@ add_library(mpp_codec STATIC
     mpp_buf_slot.cpp
     mpp_enc.cpp
     mpp_dec.cpp
-	
     )
 set_target_properties(mpp_codec PROPERTIES FOLDER "mpp/codec")
 add_subdirectory(dec)
diff --git a/mpp/mpp.h b/mpp/mpp.h
index 45dba06c..5d919d3b 100644
--- a/mpp/mpp.h
+++ b/mpp/mpp.h
@@ -34,7 +34,8 @@ extern RK_U32 mpp_debug;
 #define mpp_dbg(flag, fmt, ...) _mpp_dbg(mpp_debug, flag, fmt, ## __VA_ARGS__)
 
 
-class Mpp {
+class Mpp
+{
 public:
     Mpp(MppCtxType type, MppCodingType coding);
     ~Mpp();
diff --git a/mpp/syntax/dxva_syntax.h b/mpp/syntax/dxva_syntax.h
index 6e64da27..c48c8687 100644
--- a/mpp/syntax/dxva_syntax.h
+++ b/mpp/syntax/dxva_syntax.h
@@ -20,8 +20,7 @@
 
 #include "rk_type.h"
 
-enum __MIDL___MIDL_itf_dxva2api_0000_0000_0012
-{
+enum __MIDL___MIDL_itf_dxva2api_0000_0000_0012 {
     DXVA2_PictureParametersBufferType         = 0,
     DXVA2_MacroBlockControlBufferType         = 1,
     DXVA2_ResidualDifferenceBufferType        = 2,
@@ -33,8 +32,7 @@ enum __MIDL___MIDL_itf_dxva2api_0000_0000_0012
     DXVA2_FilmGrainBuffer                     = 8
 };
 
-typedef struct _DXVA2_ConfigPictureDecode
-{
+typedef struct _DXVA2_ConfigPictureDecode {
     //GUID guidConfigBitstreamEncryption;
     //GUID guidConfigMBcontrolEncryption;
     //GUID guidConfigResidDiffEncryption;
@@ -52,10 +50,9 @@ typedef struct _DXVA2_ConfigPictureDecode
     //UINT Config4GroupedCoefs;
     //USHORT ConfigMinRenderTargetBuffCount;
     //USHORT ConfigDecoderSpecific;
-}DXVA2_ConfigPictureDecode;
+} DXVA2_ConfigPictureDecode;
 
-typedef struct _DXVA2_DecodeBufferDesc
-{
+typedef struct _DXVA2_DecodeBufferDesc {
     RK_U32 CompressedBufferType;
     RK_U32 BufferIndex;
     RK_U32 DataOffset;
diff --git a/mpp/syntax/h264d_syntax.h b/mpp/syntax/h264d_syntax.h
index b366e74e..46cb9089 100644
--- a/mpp/syntax/h264d_syntax.h
+++ b/mpp/syntax/h264d_syntax.h
@@ -418,8 +418,7 @@ typedef struct _DXVA_PicParams_H264_MVC {
 
 } DXVA_PicParams_H264_MVC, *LPDXVA_PicParams_H264_MVC;
 
-typedef struct h264d_syntax_t
-{
+typedef struct h264d_syntax_t {
     RK_U32                  num;
     DXVA2_DecodeBufferDesc *buf;
 } H264D_Syntax_t;
diff --git a/mpp/test/CMakeLists.txt b/mpp/test/CMakeLists.txt
index caad0909..d5628506 100644
--- a/mpp/test/CMakeLists.txt
+++ b/mpp/test/CMakeLists.txt
@@ -14,7 +14,7 @@ macro(add_mpp_test module)
     if(${test_tag})
         add_executable(${test_name} ${test_name}.c)
         target_link_libraries(${test_name} mpp)
-	set_target_properties(${test_name} PROPERTIES FOLDER "mpp/test") 
+        set_target_properties(${test_name} PROPERTIES FOLDER "mpp/test") 
         install(TARGETS ${test_name} RUNTIME DESTINATION ${TEST_INSTALL_DIR})
     endif()
 endmacro()
diff --git a/osal/test/CMakeLists.txt b/osal/test/CMakeLists.txt
index 47a97309..4411ca8b 100644
--- a/osal/test/CMakeLists.txt
+++ b/osal/test/CMakeLists.txt
@@ -14,7 +14,7 @@ macro(add_mpp_osal_test module)
     if(${test_tag})
         add_executable(${test_name} ${test_name}.c)
         target_link_libraries(${test_name} osal)
-	set_target_properties(${test_name} PROPERTIES FOLDER "osal/test")
+        set_target_properties(${test_name} PROPERTIES FOLDER "osal/test")
         install(TARGETS ${test_name} RUNTIME DESTINATION ${TEST_INSTALL_DIR})
         add_test(NAME ${test_name} COMMAND ${test_name})
     endif()
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 560638ed..fc0f76a0 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -14,7 +14,7 @@ macro(add_mpp_test module)
     if(${test_tag})
         add_executable(${test_name} ${test_name}.c)
         target_link_libraries(${test_name} mpp)
-	set_target_properties(${test_name} PROPERTIES FOLDER "test")
+        set_target_properties(${test_name} PROPERTIES FOLDER "test")
         install(TARGETS ${test_name} RUNTIME DESTINATION ${TEST_INSTALL_DIR})
         add_test(NAME ${test_name} COMMAND ${test_name})
     endif()
diff --git a/test/vpu_api_test.c b/test/vpu_api_test.c
index c0249940..2dbfcd58 100644
--- a/test/vpu_api_test.c
+++ b/test/vpu_api_test.c
@@ -232,7 +232,7 @@ PARSE_OPINIONS_OUT:
 
 static RK_S32 readBytesFromFile(RK_U8* buf, RK_S32 aBytes, FILE* file)
 {
-	RK_S32 ret = 0;
+    RK_S32 ret = 0;
 
     if ((NULL == buf) || (NULL == file) || (0 == aBytes)) {
         return -1;
@@ -261,14 +261,14 @@ static RK_S32 vpu_encode_demo(VpuApiDemoCmdContext_t *cmd)
     EncInputStream_t *enc_in = NULL;
     EncParameter_t *enc_param = NULL;
     RK_S64 fakeTimeUs = 0;
-	RK_U32 w_align = 0;
-	RK_U32 h_align = 0;
+    RK_U32 w_align = 0;
+    RK_U32 h_align = 0;
 
     int Format = VPU_H264ENC_YUV420_SEMIPLANAR;
 
-	if (cmd == NULL) {
-		return -1;
-	}
+    if (cmd == NULL) {
+        return -1;
+    }
 
     if ((cmd->have_input == 0) || (cmd->width <= 0) || (cmd->height <= 0)
         || (cmd->coding <= OMX_RK_VIDEO_CodingAutoDetect)) {
@@ -475,7 +475,7 @@ ENCODE_OUT:
 
 static RK_S32 vpu_decode_demo(VpuApiDemoCmdContext_t *cmd)
 {
-	FILE* pInFile = NULL;
+    FILE* pInFile = NULL;
     FILE* pOutFile = NULL;
     struct VpuCodecContext* ctx = NULL;
     RK_S32 fileSize = 0, pkt_size = 0;
@@ -489,13 +489,13 @@ static RK_S32 vpu_decode_demo(VpuApiDemoCmdContext_t *cmd)
     RK_S64 fakeTimeUs = 0;
     RK_U8* pExtra = NULL;
     RK_U32 extraSize = 0;
-	RK_U32 wAlign16  = 0;
-	RK_U32 hAlign16  = 0;
-	RK_U32 frameSize = 0;
+    RK_U32 wAlign16  = 0;
+    RK_U32 hAlign16  = 0;
+    RK_U32 frameSize = 0;
 
-	if (cmd == NULL) {
-		return -1;
-	}
+    if (cmd == NULL) {
+        return -1;
+    }
 
     if ((cmd->have_input == 0) || (cmd->width <= 0) || (cmd->height <= 0)
         || (cmd->coding <= OMX_RK_VIDEO_CodingAutoDetect)) {
@@ -710,12 +710,12 @@ DECODE_OUT:
 
 int main(int argc, char **argv)
 {
-	RK_S32 ret = 0;
+    RK_S32 ret = 0;
     VpuApiDemoCmdContext_t demoCmdCtx;
-	VpuApiDemoCmdContext_t *cmd = NULL;
+    VpuApiDemoCmdContext_t *cmd = NULL;
     VPU_API_DEMO_DEBUG_DISABLE = 0;
 
-	mpp_log("/*******  vpu api demo in *******/\n");
+    mpp_log("/*******  vpu api demo in *******/\n");
     if (argc == 1) {
         show_usage();
         mpp_log("vpu api demo complete directly\n");