html5_rtsp_player-master
所属分类 ：其他
开发工具 ：JavaScript
文件大小 ：306KB
下载次数 ：6
上传日期 ：2019-11-18 14:38:56
上 传 者 ：
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说明： html5_rtsp_player-master
文件列表 :
.babelrc (35, 2019-02-25)editorconfig (245, 2019-02-25)npmignore (121, 2019-02-25)js (1539, 2019-02-25)html (1031, 2019-02-25)js (171277, 2019-02-25)js (752, 2019-02-25)json (1651, 2019-02-25)js (1795, 2019-02-25)html (863, 2019-02-25)json (741, 2019-02-25)js (254, 2019-02-25)js (1835, 2019-02-25)js (1008, 2019-02-25)js (2562, 2019-02-25)js (968, 2019-02-25)js (963, 2019-02-25)js (4318, 2019-02-25)js (8240, 2019-02-25)js (3893, 2019-02-25)js (3938, 2019-02-25)js (2692, 2019-02-25)js (19656, 2019-02-25)js (1389, 2019-02-25)js (1262, 2019-02-25)
## Overview
Streamedian is a Javascript library which implements RTSP client for watching live streams in your browser
that works directly on top of a standard HTML element.
It requires support of HTML5 Video with Media Sources Extensions for playback. Also player relies on server-side websocket
proxy for retransmitting RTSP streams to browser.
It works by muxing RTP H2*** and AAC payload into ISO BMFF (MP4) fragments.
Streamedian is written using ECMAScript 2015 standard.
## Live test stream
Demo is available on http://streamedian.com/demo/free/
Browser support (ES5 transpiled version):
* 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/Streamedian/html5_rtsp_player.git
## Usage
### Browser side
Attach HTML Video with RTSP URL
```
```
You can ignore source by passing data-ignore="true":
```
```
If browser can play that source, player will not be initialized for this element.
Setup player in your js:
```
import * as streamedian from 'streamedian/player.js';
// import WebsocketTransport from 'wsp/transport/websocket';
// import RTSPClient from 'wsp/client/rtsp/client';
let mediaElement = rtsp.attach(document.getElementById('test_video'));
let player = new streamedian.WSPlayer(mediaElement, {
// url: `${STREAM_URL}`, // overrides mediaElement's sources
modules: [
{
// client module constructor. Should be subclass or BaseClient. RTSPClient by default
// client: RTSPClient,
transport: {
// client module constructor. Should be subclass or BaseTransport. WebsocketTransport by default
// constructor: WebsocketTransport,
options: {
// address of websocket proxy described below. ws${location.protocol=='https:'?'s':''}://${location.host}/ws/ by default
socket: "ws://websocket_proxy_address/ws",
// function called player exceptions
errorHandler (e) {
alert(`Failed to start player: ${e.message}`);
},
// function to get credentials for protected streams
queryCredentials() {
return new Promise((resolve, reject)=>{
let c = prompt('input credentials in format user:password');
if (c) {
this.setCredentials.apply(this, c.split(':'));
resolve();
} else {
reject();
}
});
}
}
}
},
]
});
```
ES6 Modules support is required. You can use rollup to build this script:
rollup.config.js
```
import buble from 'rollup-plugin-buble';
import alias from 'rollup-plugin-alias';
const path = require('path');
export default {
entry: path.join(__dirname, 'example.js'),
targets: [
{dest: path.join(__dirname, 'example/streamedian.js'), format: 'es'}
],
sourceMap: true,
plugins: [
// uncomment if you want to transpile into es5
//buble({
//exclude: 'node_modules/**'
//}),
alias({
bp_logger: path.join(__dirname,'node_modules/bp_logger/logger'),
bp_event: path.join(__dirname,'node_modules/bp_event/event'),
bp_statemachine: path.join(__dirname,'node_modules/bp_statemachine/statemachine'),
//jsencrypt: path.join(__dirname,'node_modules/jsencrypt/src/jsencrypt.js'),
streamedian: path.join(__dirname,'src')
})
]
}
```
```
> npm install bp_event bp_logger bp_statemachine
> rollup -c
```
Include compiled script into your HTML:
```
```
### RTSP Authentication
Streamedian player support both basic and digest authentication. Authentication type is detected automatically
when you connect to the stream.
You can directly specify user/password in rtsp url in form rtsp://username@password:stream.url/resource/
or pass _queryCredentials()_ function to _streamedian.WSPlayer_. This function in order
should return promise that call _this.setCredentials(user, password)_.
### Server side
1. Install websocket proxy
Sign up and install websocket proxy from http://streamedian.com
Register domain you want to use this player
Download license file to your server
Note that this package depends on systemd and gcc5+ runtime so it can be installed
only on recent distribution versions.
2. Configure port and license file path 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
```
### Player architecture
Player comprises three main modules: **transport**, **client** and **remuxer**.
**Transport** responsible for data delivery and data queuing. It should fire _connected_, _disconnected_ and _data_ events.
As soon data received, transport should push it into dataQueue and fire _data_ event. Base class for transports can be found in core/base_transport.
As a default, WebsocketTransport that relies on websocket proxy is implemented.
**Client** listens for data events, parse it into elementary stream packets and enqueue parsed data into it's own queue. Client can
pass queued buffer to remuxer with _samples_ event. To identify stream track client should fire _tracks_ event. When ready, _flush_
event can be used to construct media fragment and pass it to video presenter. Base class for transports can be found in core/base_client.
Default client is RTSP client over websocket transport.
**Remuxer** prepares media fragment for video presenter and push it. There is only video presenter at the moment, based on media source extensions.
Remuxer collects data into mp4 media fragments (moof+mdat) and pass it into source buffer.
### 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/1.1 INIT\r\n
seq:
host: \r\n
port: \r\n\r\n
s>c:
WSP/1.1 200 OK\r\n
seq:
channel: \r\n\r\n
Error codes >= 400 means error
```
2. Connect to RTP channel by connecting websocket with "rtp" protocol
```
c>s:
WSP/1.1 JOIN\r\n
seq: \r\n
channel: \r\n\r\n
s>c:
WSP/1.1 200 OK\r\n
seq: \r\n\r\n
Error codes >= 400 means error
```
3. Send RTSP commands wrapped into WSP protocol:
```
c>s:
WSP/1.1 WRAP\r\n
seq: \r\n
\r\n
s>c:
WSP/1.1 200 OK\r\n
channel: \r\n
\r\n
Error codes >= 400 means error
```
4. RTP channel should send interleaved data with 4 byte header ($\\). Separate RTP is not supported at this moment
### Load balancing
RTSP proxy does not support load balancing itself but can be easily integrated with such load balancers like nginx.
You can start multiple instances of proxy on different sockets and configure nginx upstreams.
Have any suggestions to improve our player?
Feel free to leave comments or ideas streamedian.player@gmail.com
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