README.md

AVCanvas

Combine Text, Image, Video, Audio, UserMedia, DisplayMedia to generate MediaStream.
With AVRcorder you can output MP4 streams and save them as local files or push them to the server.

使用文字、图片、音视频文件、摄像头&麦克风、分享屏幕来生成 MediaStream。
配合 AVRcorder 可以输出 MP4 流，然后保存为本地文件或推送至服务器。

Example

Record a video tutorial, add camera, micphone and screen to the canvas, then export mp4 and save as mp4 file.
录制视频教程，在画布中添加 camera、micphone 和屏幕，然后导出mp4保存为mp4文件。

import { AVCanvas, VideoSprite } from '@webav/av-canvas'
import { AVRecorder } from '@webav/av-recorder'

const avCvs = new AVCanvas(document.querySelector('#app') as HTMLElement, {
  bgColor: '#333',
  resolution: {
    width: 1920,
    height: 1080
  }
})

const userMediaStream = await navigator.mediaDevices.getUserMedia({
  video: true,
  audio: true
})
const userSprite = new VideoSprite('userMedia', userMediaStream, {
  audioCtx: avCvs.spriteManager.audioCtx
})
await avCvs.spriteManager.addSprite(userSprite)

const screenStream = await navigator.mediaDevices.getDisplayMedia({
  video: true,
  audio: true
})
const screenSprite = new VideoSprite('screen', screenStream, {
  audioCtx: avCvs.spriteManager.audioCtx
})
await avCvs.spriteManager.addSprite(screenSprite)


//  start event
const recorder = new AVRecorder(avCvs.captureStream(), {
  width: 1280,
  height: 720,
  audioCodec: 'aac'
})
await recorder.start()

const fileHandle = await window.showSaveFilePicker({
  suggestedName: 'tutorial.mp4'
})
recorder.outputStream
  .pipeTo(fileHandle.createWritable())

// stop event
recorder.stop()

Demo

Record AVCanvas
Demo code