diff --git a/cameraApp/BUILD.gn b/cameraApp/BUILD.gn
index 6447fd78b0437f675b553e1b7e06c32f57a3f643..d1bef2dd32b26b7d61e3666d6b5a5ec821757868 100755
--- a/cameraApp/BUILD.gn
+++ b/cameraApp/BUILD.gn
@@ -19,7 +19,8 @@ shared_library("cameraApp") {
     "cameraApp/src/main/cpp/camera_ability_slice.cpp",
     "cameraApp/src/main/cpp/camera_manager.cpp",
   ]
-
+  cflags = [ "-Werror" ]
+  cflags_cc = cflags
   deps = [
     "${aafwk_lite_path}/frameworks/ability_lite:aafwk_abilitykit_lite",
     "${appexecfwk_lite_path}/frameworks/bundle_lite:bundle",
diff --git a/cameraApp/cameraApp/src/main/cpp/camera_manager.cpp b/cameraApp/cameraApp/src/main/cpp/camera_manager.cpp
index c3c63e251f270f02c998835cddea8c272da6655c..9b98ff46bb625511ace221b393e5a30e3d9faf7a 100755
--- a/cameraApp/cameraApp/src/main/cpp/camera_manager.cpp
+++ b/cameraApp/cameraApp/src/main/cpp/camera_manager.cpp
@@ -30,8 +30,6 @@ static constexpr int TEMP_BUF_LEN = 8;
 static constexpr int MAX_THM_SIZE = (64 * PAGE_SIZE);
 static constexpr int FILE_NAME_LEN = 128;
 static constexpr int MILLI_SECONDS = 1000;
-static constexpr int PIC_WIDTH = 1920;
-static constexpr int PIC_HEIGHT = 1080;
 
 char* g_dstBuf = nullptr;
 
@@ -221,7 +219,9 @@ static void SampleSaveCapture(const char* p, uint32_t size, int type, const char
         fwrite(p, 1, size, fp);
         fflush(fp);
         fsync(fileno(fp));
-        fclose(fp);
+        if (fclose(fp) == -1) {
+            printf("stream closed failed!! \n");
+        }
 
     if (type == 0) {
         if (sprintf_s(acFileDcf, sizeof(acFileDcf), "%s/photo%s.jpg", THUMB_PATH, timeStamp) < 0) {
diff --git a/media/BUILD.gn b/media/BUILD.gn
index 01f99e1ac2988557b7e3dbc8de795ce0996aca54..15a1f56af78c95ef11af804fdf40896297aec02a 100755
--- a/media/BUILD.gn
+++ b/media/BUILD.gn
@@ -14,7 +14,10 @@ import("//build/lite/config/component/lite_component.gni")
 
 executable("camera_sample") {
   sources = [ "camera_sample.cpp" ]
-  cflags = [ "-Wall" ]
+  cflags = [
+    "-Wall",
+    "-Werror",
+  ]
   cflags_cc = cflags
   include_dirs = []
 
@@ -31,7 +34,10 @@ executable("camera_sample") {
 
 executable("player_sample") {
   sources = [ "player_sample.cpp" ]
-  cflags = [ "-Wall" ]
+  cflags = [
+    "-Wall",
+    "-Werror",
+  ]
   cflags_cc = cflags
   include_dirs = []
   ldflags = [ "-lstdc++" ]
diff --git a/media/player_sample.cpp b/media/player_sample.cpp
index b6b8675482622c01aef446723678113c413fcffd..8188ba502d9d8567615f699214c7d9fcab46feba 100755
--- a/media/player_sample.cpp
+++ b/media/player_sample.cpp
@@ -420,23 +420,6 @@ static int PlayProcess(TestSample &sample)
     return 0;
 }
 
-static int ReleaseProcess(TestSample &sample)
-{
-    int32_t ret;
-    int64_t begin = GetCurTimeMs();
-
-    if (sample.pauseAfterPlay != 0) {
-        ret = sample.adapter->Pause();
-    } else {
-        ret = sample.adapter->Play();
-    }
-    sample.playCost = GetCurTimeMs() - begin;
-    if (ret != 0) {
-        printf("[%s: %d] ret:%d\n", __func__, __LINE__, ret);
-    }
-    return 0;
-}
-
 static void EndStreamSourceThread(TestSample &sample)
 {
     if (sample.sourceType == 0x2 && sample.process != -1) {