diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index b5cc594f..7f17b5be 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -37,7 +37,7 @@ add_mpp_test(mpi_dec_nt c)
 add_mpp_test(mpi_enc c)
 
 # mpi encoder multi-thread input / output unit test
-add_mpp_test(mpi_enc_mt cpp)
+add_mpp_test(mpi_enc_mt c)
 
 # new mpi rc unit test
 add_mpp_test(mpi_rc2 c)
diff --git a/test/mpi_dec_mt_test.c b/test/mpi_dec_mt_test.c
index 24b2c8ad..fe2ec02f 100644
--- a/test/mpi_dec_mt_test.c
+++ b/test/mpi_dec_mt_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2015 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2015 Rockchip Electronics Co., Ltd.
  */
 
 #if defined(_WIN32)
diff --git a/test/mpi_dec_multi_test.c b/test/mpi_dec_multi_test.c
index 2d57ee50..7aa9ae7a 100644
--- a/test/mpi_dec_multi_test.c
+++ b/test/mpi_dec_multi_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2015 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2015 Rockchip Electronics Co., Ltd.
  */
 
 #if defined(_WIN32)
diff --git a/test/mpi_dec_nt_test.c b/test/mpi_dec_nt_test.c
index 4ec8bba4..8afa4d82 100644
--- a/test/mpi_dec_nt_test.c
+++ b/test/mpi_dec_nt_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2022 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2022 Rockchip Electronics Co., Ltd.
  */
 
 #if defined(_WIN32)
diff --git a/test/mpi_dec_test.c b/test/mpi_dec_test.c
index 58f56fb8..b2612684 100644
--- a/test/mpi_dec_test.c
+++ b/test/mpi_dec_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2015 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2015 Rockchip Electronics Co., Ltd.
  */
 
 #if defined(_WIN32)
diff --git a/test/mpi_enc_mt_test.cpp b/test/mpi_enc_mt_test.c
similarity index 98%
rename from test/mpi_enc_mt_test.cpp
rename to test/mpi_enc_mt_test.c
index 47ba9be0..2de9048a 100644
--- a/test/mpi_enc_mt_test.cpp
+++ b/test/mpi_enc_mt_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2022 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2022 Rockchip Electronics Co., Ltd.
  */
 
 #define MODULE_TAG "mpi_enc_mt_test"
diff --git a/test/mpi_enc_test.c b/test/mpi_enc_test.c
index 78bebbd2..95f99b91 100644
--- a/test/mpi_enc_test.c
+++ b/test/mpi_enc_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2015 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2015 Rockchip Electronics Co., Ltd.
  */
 
 #if defined(_WIN32)
diff --git a/test/mpi_rc2_test.c b/test/mpi_rc2_test.c
index c9b1c694..47934cdb 100644
--- a/test/mpi_rc2_test.c
+++ b/test/mpi_rc2_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2021 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
  */
 
 #define MODULE_TAG "mpi_rc_test"
diff --git a/test/mpp_event_trigger.c b/test/mpp_event_trigger.c
index e858af14..867b0adf 100644
--- a/test/mpp_event_trigger.c
+++ b/test/mpp_event_trigger.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2017 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  */
 
 #include <assert.h>
diff --git a/test/mpp_event_trigger.h b/test/mpp_event_trigger.h
index 91a6a62d..e48bc63f 100644
--- a/test/mpp_event_trigger.h
+++ b/test/mpp_event_trigger.h
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2017 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  */
 
 #ifndef __MPP_EVENT_TRIGGER_H__
diff --git a/test/mpp_info_test.c b/test/mpp_info_test.c
index e8caa938..43e20d3f 100644
--- a/test/mpp_info_test.c
+++ b/test/mpp_info_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2015 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2015 Rockchip Electronics Co., Ltd.
  */
 
 #define MODULE_TAG "mpp_info_test"
diff --git a/test/mpp_parse_cfg.c b/test/mpp_parse_cfg.c
index 350f6ca1..3cd80c0a 100644
--- a/test/mpp_parse_cfg.c
+++ b/test/mpp_parse_cfg.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2017 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  */
 
 #include <stdio.h>
diff --git a/test/mpp_parse_cfg.h b/test/mpp_parse_cfg.h
index a0f755bd..755966ba 100644
--- a/test/mpp_parse_cfg.h
+++ b/test/mpp_parse_cfg.h
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2017 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  */
 
 #ifndef __MPP_PARSE_CFG_H__
diff --git a/test/vpu_api_test.c b/test/vpu_api_test.c
index dc9d2f4b..1c11005a 100644
--- a/test/vpu_api_test.c
+++ b/test/vpu_api_test.c
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: Apache-2.0 OR MIT */
 /*
- * Copyright 2015 Rockchip Electronics Co. LTD
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright (c) 2015 Rockchip Electronics Co., Ltd.
  */
 
 #include <stdio.h>
@@ -88,7 +77,6 @@ RK_S32 (*vpuapi_close_ctx)(VpuCodecContext_t **ctx);
 RK_S32 (*vpuapi_mem_link)(VPUMemLinear_t *p);
 RK_S32 (*vpuapi_mem_free)(VPUMemLinear_t *p);
 
-
 static void show_usage()
 {
     printf("usage: vpu_apiDemo [options] input_file, \n\n");