修复没有OSD时空指针bug

app/src/main/java/com/xypower/mpapp/v2/Camera2VideoActivity.java

@@ -346,6 +346,7 @@ public class Camera2VideoActivity extends AppCompatActivity {
 
                 mGPUCameraRecorder.start(mNextVideoAbsolutePath);
 
+                if (mOSDFilter != null) {
                     long ts2 = System.currentTimeMillis();
                     long zeroTs2 = ts2 - (ts2 % 1000);
 
@@ -360,6 +361,7 @@ public class Camera2VideoActivity extends AppCompatActivity {
                     Log.d("OSD", "Cur TS=" + Long.toString(ts2 / 1000) + " Timer=" + Long.toString(1000 - (ts2 - zeroTs2)));
                     mHandler.postDelayed(mTimerRunnable, 1000 - (ts2 - zeroTs2));
                 }
+            }
         }, 0);
 
         mHandler.postDelayed(new Runnable() {