Update playback-simple-demo-forward.html

Author: bosscheng

demo/public/pro/playback-simple-demo-forward.html

@@ -85,22 +85,25 @@
                 <div>
                     <span>硬解码：</span>
                     <input
+                        disabled
                         type="checkbox"
-                        checked
                         id="useMSE"
                     /><span>MediaSource</span>
                     <input
+                        disabled
                         type="checkbox"
                         id="useWCS"
                     /><span>Webcodec</span>
                 </div>
                 <div>
                     <span>软解码：</span>
                     <input
+                        checked
                         type="checkbox"
                         id="useSIMD"
                     /><span>WASM(SIMD)</span>
                     <input
+                        checked
                         type="checkbox",
                         id="isFFmpegSIMD"
                         onclick="replay()"