Overview

html5_rtsp_player.js is a Javascript library which implements RTSP client for watching live streams in your browser that works directly on top of a standard HTML

It works by muxing RTP h.264 and MP4A-LATM payload into ISO BMFF (MP4) fragments.

html5_rtsp_player.js is written in ECMAScript6, and transpired in ECMAScript5 using Babel.

* HLS player link
* Here you can find HLS player over websocket  https://github.com/SpecForge/html5_hls_player

Live test stream

Link to server running with websock_rtsp_proxy and test page http://specforge.com/html5playerstream/index.html

HTML5 Player update test page We've added such feature which supports Local Fast Playback mode up to 2 minutes duration. In this mode, you can view the video at a speed of x0,5 to x5.

• If you want activate this mode, click on timeline.
• To return to normal playback rate, press «live». This mode is useful to see what you missed.

Browser support:

• Firefox v.42+
• Chrome v.23+
• OSX Safari v.8+
• MS Edge v.13+
• Opera v.15+
• Android browser v.5.0+
• IE Mobile v.11+

Not supported in iOS Safari and Internet Explorer

Install

npm install git://github.com/SpecForge/html5_rtsp_player.git

Usage

Browser side

Attach HTML Video with RTSP URL

<video id="test_video" controls autoplay src="rtsp://your_rtsp_stream/url"></video>

Setup player in your js:

import * as rtsp from 'rtsp_player';

rtsp.RTSP_CONFIG['websocket.url'] = "ws://websocket_proxy_address/ws"; // You should specify address of proxy described below

let player = rtsp.attach(document.getElementById('test_video'));

ES6 Modules support is required. You can use webpack with babel loader to build this script:

webpack.config.js

const PATHS = {
    src: {
        test: path.join(__dirname, 'test.js')
    },
    dist: __dirname
};

module.exports = {
    entry: PATHS.src,
    output: {
        path: PATHS.dist,
        filename: '[name].bundle.js'
    },
    module: {
        loaders: [
            {
                test: /\.js$/,
                loader: 'babel',
                query: {
                    presets: ['es2015', 'stage-3', 'stage-2', 'stage-1', 'stage-0']
                }
            }
        ]
    },
    resolve: {
        alias: {
            rtsp: path.join(__dirname,'node_modules/html5_rtsp/src')
        }
    }
};

> npm install bp_event bp_logger bp_statemachine
> webpack --config webpack.config.js

Include compiled script into your HTML:

<script src="test.bundle.js"></script>

Server side

1. Install websocket proxy

   For Debian-based systems (tested on Ubuntu 16.04):

   wget -O - http://repo.tom.ru/deb/specforge.gpg.key | sudo apt-key add -
   wget http://repo.tom.ru/deb/pool/non-free/w/ws-rtsp-repo/ws-rtsp-repo_1.3_all.deb
   dpkg -i ./ws-rtsp-repo_1.3_all.deb
   apt update
   apt install ws-rtsp-proxy # Debian-based systems
   

   or Fedora:

   dnf install http://repo.tom.ru/rpm/websock_rtsp_repo-1-0.noarch.rpm
   dnf install websock_rtsp_proxy
   

   Note that this package depends on systemd and gcc5+ runtime so it can be installed only on recent distribution versions.

2. Configure port in /etc/ws_rtsp.ini

   This port should be open in your firewall. Also you can pass request to this port from your proxy. (for example: http://nginx.org/en/docs/http/websocket.html)

3. Run it

> service ws_rtsp start

How RTSP proxy works?

RTSP player establish connection with proxy with following protocol:

1. Connect to RTSP channel by connecting websocket with "rtsp" protocol specified and get connection id

   c>s:
   WSP 1.0 INIT\r\n
   host <RTSP stream host>\r\n
   port <RTSP stream port>\r\n\r\n
   
   s>c:
   INIT <connection_id>\r\n\r\n
   
   conection_id = -1 means error
   

2. Connect to RTP channel by connecting websocket with "rtp" protocol

   c>s:
   WSP 1.0 INIT\r\n
   RTSP <connection_id achieved from RTSP socket initialization>\r\n\r\n
   
   s>c:
   INIT <connection_id>\r\n\r\n
   
   conection_id = -1 means error
   

3. RTP channel should send interleaved data with 4 byte header ($<channel><size>). Separate RTP is not supported at this moment

Have any suggestions to improve our player? Feel free to leave comments or ideas [email protected]