npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

ws-avc-player

v2.0.2

Published

Stream realtime h264 video directly to the browser. Ideal for raspberry pi. Comes with a browser player, and streaming server. Based of h264-live-player that uses Broadway Decoder.

Downloads

60

Readme

Stream realtime low-latency h264 video directly to the browser. Comes with a browser player, and streaming server. Uses Broadway browser decoder and player. Ideal for for Raspberry pi cam streaming.

Usage

Server:

const AvcServer = require('ws-avc-player/lib/server')
const { WebSocketServer } = require('@clusterws/cws') // works with ws, legacy uws
const wss = new WebSocketServer({ port: 3333 })
const avcServer = new AvcServer(wss, 640, 480) //initial width and height (it adapts to the stream)

avcServer.setVideoStream(h264Stream)

More detailed in example/index.js

Client:

<html>
  <body>
    <!-- define the element to hold the canvas -->
     <div id="video-box" />
    <!-- provide WSAvcPlayer -->
    <script type="text/javascript" src="WSAvcPlayer.js" />
    <script type="text/javascript">
      //initialize the player, if useWorker: true, than you must have `/Decoder.js` availible at the root of the domain.
      var wsavc = new WSAvcPlayer.default({useWorker:false}); 
      //append the canvas to the box element, you can style the box element and canvas.
      document.getElementById('video-box').appendChild(wsavc.AvcPlayer.canvas)
      //connect to the websocket
      wsavc.connect("ws://" + document.location.host+":3333");
    </script>    
  </body>
</html>

More detailed in example/html/index.html

Running the demo

git clone https://github.com/matijagaspar/ws-avc-player
cd ws-avc-player
npm install
npm run example

# browse to http://127.0.0.1:8080/ for a demo player

then run

ffmpeg -framerate 30 -video_size 640x480 -f [driver] -i [device]  -vcodec libx264 -vprofile baseline -b:v 500k -bufsize 600k -tune zerolatency -pix_fmt yuv420p -r 15 -g 30 -f rawvideo tcp://localhost:5000

or

raspivid -t 0 -w 640 -h 480 -hf -fps 15 -o - | nc localhost 5000

alternatively run:

npm run example raspivid

It will automatically run raspivid too

Using it in your own project

yarn add ws-avc-player

On Client

  • import WSAvcPlayer from 'ws-avc-player'
  •       const wsavc = new WSAvcPlayer({useWorker:true})
          wsavc.connect(serverUrl);
    

On Server:

  • See example/index.js

TODO:

  • ~Decoder as worker~
  • More docs
  • More cleanup
  • Audio
  • ~Ability to change video resolution or better parse sps/pps~
  • ~Decent performance~

Credits