README.md

AVRecorder

Record MediaStream to MP4, Use Webcodecs API encode VideoFrame and AudioData, mp4box.js as muxer.
录制 MediaStream 到 MP4，使用 Webcodecs API 编码 VideoFrame、AudioData，mp4box.js 封装。

Example

Record camera & microphone, save data to MP4 file.
录制摄像头和麦克风，保存为 MP4 文件。

import { AVRecorder } from '@webav/av-recorder'

// MediaStream from: getUserMedia, displayMedia, VideoHTMLElement.captureStream, VideoCanvasElement.captureStream, AVCanvas.captureStream etc...
const mediaStream = await navigator.mediaDevices.getUserMedia({
  video: true,
  audio: true
})

const recorder = new AVRecorder(mediaStream, {
  width: 1280,
  height: 720,
  // aac or opus (default)
  audioCodec: 'aac'
})
await recorder.start()

const fileHandle = await window.showSaveFilePicker({
  suggestedName: `av-recorder.mp4`
})

recorder.outputStream
  .pipeTo(await fileHandle.createWritable())


// await recorder.stop()

Demo

Record camera & microphone
Demo code