播放详情页新增音频可视化功能

src/renderer/plugins/player.js

@@ -1,5 +1,7 @@
 let audio
-
+let audioContext
+let mediaSource
+let analyser
 export const createAudio = () => {
   if (audio) return
   window.audio = audio = new window.Audio()
@@ -8,6 +10,17 @@ export const createAudio = () => {
   audio.preload = 'auto'
 }
 
+export const getAnalyser = () => {
+  if (audioContext == null) {
+    audioContext = new window.AudioContext()
+    mediaSource = audioContext.createMediaElementSource(audio)
+    analyser = audioContext.createAnalyser()
+    mediaSource.connect(analyser)
+    analyser.connect(audioContext.destination)
+  }
+  return analyser
+}
+
 export const setResource = src => {
   if (audio) audio.src = src
 }