Fix playground bug

Author: jeromewu

apps/website/src/components/Playground/const.ts

@@ -4,11 +4,11 @@ export const CORE_URL = `https://unpkg.com/@ffmpeg/core@${CORE_VERSION}/dist/umd
 export const CORE_MT_URL = `https://unpkg.com/@ffmpeg/core-mt@${CORE_VERSION}/dist/umd/ffmpeg-core.js`;
 
 export const CORE_SIZE = {
-  [`https://unpkg.com/@ffmpeg/core@${CORE_VERSION}/dist/umd/ffmpeg-core.js`]: 111646,
-  [`https://unpkg.com/@ffmpeg/core@${CORE_VERSION}/dist/umd/ffmpeg-core.wasm`]: 31967534,
-  [`https://unpkg.com/@ffmpeg/core-mt@${CORE_VERSION}/dist/umd/ffmpeg-core.js`]: 130002,
-  [`https://unpkg.com/@ffmpeg/core-mt@${CORE_VERSION}/dist/umd/ffmpeg-core.wasm`]: 32441947,
-  [`https://unpkg.com/@ffmpeg/core-mt@${CORE_VERSION}/dist/umd/ffmpeg-core.worker.js`]: 2978,
+  [`https://unpkg.com/@ffmpeg/core@${CORE_VERSION}/dist/umd/ffmpeg-core.js`]: 109667,
+  [`https://unpkg.com/@ffmpeg/core@${CORE_VERSION}/dist/umd/ffmpeg-core.wasm`]: 31598677,
+  [`https://unpkg.com/@ffmpeg/core-mt@${CORE_VERSION}/dist/umd/ffmpeg-core.js`]: 127674,
+  [`https://unpkg.com/@ffmpeg/core-mt@${CORE_VERSION}/dist/umd/ffmpeg-core.wasm`]: 32077318,
+  [`https://unpkg.com/@ffmpeg/core-mt@${CORE_VERSION}/dist/umd/ffmpeg-core.worker.js`]: 2915,
 };
 
 export const SAMPLE_FILES = {

apps/website/src/components/Playground/index.tsx

@@ -22,6 +22,7 @@ export default function Playground() {
   const ffmpeg = useRef(new FFmpeg());
 
   const load = async (mt: boolean = false) => {
+    setState(State.LOADING);
     const setProgress = ({ url: _url, received: _received }) => {
       setURL(_url as string);
       setReceived(_received);
@@ -48,7 +49,6 @@ export default function Playground() {
           setProgress
         )
       : "";
-    setState(State.LOADING);
     ffmpeg.current.terminate();
     await ffmpeg.current.load({
       coreURL,