UI 解耦
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@ -13,13 +13,26 @@
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</div>
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<script type="module">
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import IndexedDB from './database.js'
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import MusicList from './music.js'
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const musicObjectStore = new IndexedDB('musicDatabase', 1, 'musicObjectStore')
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await musicObjectStore.open()
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// 音乐列表
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const musicList = new MusicList()
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console.log('musicList:', musicList)
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//musicList.on('add', async item => {
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// console.log('musicList add:', item)
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// const { name, size, type, lastModified, lastModifiedDate, arrayBuffer } = item
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// const id = Date.now()
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// // 存储到 IndexDB
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// await musicObjectStore.add({ id, name, size, type, lastModified, lastModifiedDate, arrayBuffer })
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//})
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// webRTC 传递音乐(分别传输文件和操作事件能更流畅)
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const music = async function () {
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const clients = [] // 客户端列表
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// 对端设备
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const ul = document.createElement('ul')
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document.body.appendChild(ul)
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const protocol = window.location.protocol === 'https:' ? 'wss' : 'ws'
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@ -119,18 +132,16 @@
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mediaStreamDestination.stream.getAudioTracks().forEach(function (track) {
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pc.addTrack(track, mediaStreamDestination.stream)
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})
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// 播放音乐
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// 播放音乐(远程)
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const audioSource = audioContext.createBufferSource()
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audioSource.buffer = audioBuffer
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audioSource.connect(mediaStreamDestination)
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audioSource.start()
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// 创建本地音频播放器
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// 播放音乐(本地)
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const audioPlayer = new Audio()
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audioPlayer.srcObject = mediaStreamDestination.stream
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audioPlayer.play()
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// 创建SDP offer并将其设置为本地描述, 发送给远程端
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console.log('创建SDP offer并将其设置为本地描述, 发送给远程端')
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console.log('clients:', clients)
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const id = clients[0].id
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await pc.setLocalDescription(await pc.createOffer()) // 设置本地描述为 offer
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ws.send(JSON.stringify({ id, offer: pc.localDescription })) // 发送给远程终端 offer
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@ -161,30 +172,32 @@
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const arrayBuffer = reader.result
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// 存储到 IndexDB
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musicObjectStore.add({ id, name, size, type, lastModified, lastModifiedDate, arrayBuffer })
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// 传输音乐文件
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const audioContext = new AudioContext()
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audioContext.decodeAudioData(arrayBuffer, async audioBuffer => {
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// 将音乐流添加到 RTCPeerConnection
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const mediaStreamDestination = audioContext.createMediaStreamDestination()
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mediaStreamDestination.stream.getAudioTracks().forEach(function (track) {
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pc.addTrack(track, mediaStreamDestination.stream)
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})
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// 播放音乐
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const audioSource = audioContext.createBufferSource()
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audioSource.buffer = audioBuffer
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audioSource.connect(mediaStreamDestination)
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audioSource.start()
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// 创建本地音频播放器
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const audioPlayer = new Audio()
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audioPlayer.srcObject = mediaStreamDestination.stream
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audioPlayer.play()
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// 创建SDP offer并将其设置为本地描述, 发送给远程端
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console.log('创建SDP offer并将其设置为本地描述, 发送给远程端')
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console.log('clients:', clients)
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const id = clients[0].id
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await pc.setLocalDescription(await pc.createOffer()) // 设置本地描述为 offer
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ws.send(JSON.stringify({ id, offer: pc.localDescription })) // 发送给远程终端 offer
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})
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// 更新列表
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//// 传输音乐文件
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//const audioContext = new AudioContext()
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//audioContext.decodeAudioData(arrayBuffer, async audioBuffer => {
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// // 将音乐流添加到 RTCPeerConnection
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// const mediaStreamDestination = audioContext.createMediaStreamDestination()
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// mediaStreamDestination.stream.getAudioTracks().forEach(function (track) {
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// pc.addTrack(track, mediaStreamDestination.stream)
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// })
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// // 播放音乐
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// const audioSource = audioContext.createBufferSource()
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// audioSource.buffer = audioBuffer
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// audioSource.connect(mediaStreamDestination)
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// audioSource.start()
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// // 创建本地音频播放器
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// const audioPlayer = new Audio()
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// audioPlayer.srcObject = mediaStreamDestination.stream
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// audioPlayer.play()
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// // 创建SDP offer并将其设置为本地描述, 发送给远程端
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// console.log('创建SDP offer并将其设置为本地描述, 发送给远程端')
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// console.log('clients:', clients)
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// const id = clients[0].id
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// await pc.setLocalDescription(await pc.createOffer()) // 设置本地描述为 offer
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// ws.send(JSON.stringify({ id, offer: pc.localDescription })) // 发送给远程终端 offer
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//})
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}
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reader.readAsArrayBuffer(file)
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})
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91
public/music.js
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91
public/music.js
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@ -0,0 +1,91 @@
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import IndexedDB from './database.js'
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import { Button, List, ListItem } from './weigets.js'
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export default class MusicList {
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constructor() {
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this.ul = List({})
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this.store = new IndexedDB('musicDatabase', 1, 'musicObjectStore')
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this.store.open().then(() => {
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this.store.getAll().then((data) => {
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console.log(data)
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data.forEach(item => this.add(item))
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})
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})
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document.body.appendChild(this.ul)
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// 添加音乐播放器
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this.audio = new Audio()
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this.audio.addEventListener('ended', () => {
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this.next()
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})
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this.audio.addEventListener('timeupdate', () => {
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console.log(this.audio.currentTime)
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})
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// 添加音乐按钮
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const input = document.createElement('input')
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input.type = 'file'
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input.multiple = true
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input.accept = 'audio/*'
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input.onchange = event => {
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console.log('event.target.files', event.target.files)
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for (const file of event.target.files) {
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const id = Date.now()
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const { name, size, type } = file
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const reader = new FileReader()
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reader.onload = async event => {
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const arrayBuffer = event.target.result
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this.add({ id, name, size, type, arrayBuffer })
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}
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reader.readAsArrayBuffer(file)
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}
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}
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document.body.appendChild(input)
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}
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add(item) {
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this.store.add(item)
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const li = ListItem({
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id: item.id,
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innerText: `${item.name} - ${item.size} - ${item.type} - ${item.id}`,
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onclick: event => {
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event.stopPropagation()
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this.play(item.id)
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},
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children: [
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Button({
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innerText: '播放',
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onclick: event => {
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event.stopPropagation()
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this.play(item.id)
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}
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}),
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Button({
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innerText: '停止',
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onclick: event => {
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event.stopPropagation()
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this.stop(item.id)
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}
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}),
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Button({
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innerText: '移除',
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onclick: event => {
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event.stopPropagation()
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this.delete(item.id)
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}
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})
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]
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})
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this.ul.appendChild(li)
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}
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delete(id) {
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// 如果是正在播放的歌曲，停止播放
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this.stop(id)
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const li = this.ul.querySelector(`li[data-id="${id}"]`)
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this.ul.removeChild(li)
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this.store.delete(id)
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}
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play(id) { }
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stop(id) { }
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next() { }
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prev() { }
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}
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21
public/weigets.js
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21
public/weigets.js
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@ -0,0 +1,21 @@
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export function Button({ innerText, onclick }) {
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const button = document.createElement('button')
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button.innerText = innerText
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button.onclick = onclick
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return button
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}
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export function List({ children = [] }) {
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const ul = document.createElement('ul')
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children.forEach(child => ul.appendChild(child))
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return ul
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}
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export function ListItem({ innerText, onclick, id, children = [] }) {
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const li = document.createElement('li')
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li.innerText = innerText
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li.onclick = onclick
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li.id = id
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children.forEach(child => li.appendChild(child))
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return li
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}
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