!40 代码编程规范整改

Merge pull request !40 from 杨帅/master

launcher/launcher/src/main/cpp/main_ability_slice.cpp

@@ -13,7 +13,7 @@
  * limitations under the License.
  */
 
-#include <stdio.h>
+#include <cstdio>
 #include <common/screen.h>
 #include <components/ui_label.h>
 #include <components/ui_label_button.h>

media/camera_sample.cpp

@@ -85,10 +85,7 @@ Recorder *SampleCreateRecorder()
     int32_t audioSourceId = 0;
     int32_t width = 1920;
     int32_t height = 1080;
-    VideoCodecFormat encoder;
-    encoder = HEVC;
-    width = 1920;
-    height = 1080;
+    VideoCodecFormat encoder = HEVC;
     Recorder *recorder = new Recorder();
     if ((ret = recorder->SetVideoSource(source, sourceId)) != SUCCESS) {
         cout << "SetVideoSource failed." << ret << endl;