修改bug

screenIos/decoder.js

@@ -13,20 +13,17 @@ function doSomeInit() {
   var allocSize = maxWidth * maxHeight * 3;
   golbalYuvData = new Uint8Array(allocSize);
 }
+self.importScripts("ffmpeghelper.js");
 
-self.Module = {
-  onRuntimeInitialized: function () {
-    isFinish = true;
-    doSomeInit();
-    ret = Module._openDecoder();
+self.Module.onRuntimeInitialized = function () {
+  isFinish = true;
+  doSomeInit();
+  ret = Module._openDecoder();
 
-    if (!ret) {
-      console.log("打开编码器成功");
-    }
+  if (!ret) {
+    console.log("打开编码器成功");
   }
-};
-
-self.importScripts("ffmpeghelper.js");
+}
 
 self.addEventListener('message', function (e) {
   var msg = e.data;