Merge pull request #274 from swaylq/master

Fix ``exit`` method bug

src/createFFmpeg.js

@@ -181,12 +181,14 @@ module.exports = (_options = {}) => {
       try {
         Core.exit(1);
       } catch (e) {
-        console.log('catch core exit error', e);
-      }
+        log(e.message);
+      } finally {
         Core = null;
         ffmpeg = null;
         runResolve = null;
       }
+
+    }
   };
 
   const setProgress = (_progress) => {