Instructions for using the open source code flv.js-H5 Tutorial-php.cn

Home

Web Front-end

H5 Tutorial

Instructions for using the open source code flv.js

阿神

May 24, 2018 am 11:11 AM

Flv.js

is an HTML5 Flash video (FLV) player, developed purely with native JavaScript, without using Flash. Open sourced by bilibili website.

Overview:

A JavaScript library that implements playing FLV format videos in HTML5 videos. Its working principle is to transcode and multiplex the FLV file stream into ISO BMFF (MP4 fragments) fragments, and then pass them through Media Source Extensions feed MP4 clips into the browser. flv.js is written in ECMAScript 6, then compiled into ECMAScript 5 through Babel Compiler, and packaged using Browserify.

Function:

The above is the official introduction, the key point is that open source allows us to use it, thank you to the masters of Bilibili We

The following is the integrated usage plan I compiled

1. Deployment plan

1. Prerequisite

First of all, nodejs and npm are used here. How to install and deploy them has been written in my previous article. I won’t go into more details here. You can search for them if you need them.

##2. Download code

github address: https://github.com/Bilibili/flv.js

# #Students who need to synchronize the latest code should use git. Those who don’t have git can also download the zip file

After downloading the code

I put it in D:\code\flv.js-master

3. Build the code

Because the code cannot be used directly, we need to use the npm module of nodejsBuild

1) First open the cmd command line window (Remember to open it with the right click to manage Run as a member), otherwise an error may occur

##cd Command to the place where the code is placed. I put it on D:\code\flv.js-master

#2) Execute npm build, here is the operation to install the development environment

npm install

After waiting for the execution to complete, the following picture will appear

D:\code\flv.js-masterThere will be one more node_modules folder

3）安装生成工具

npm install -g gulp

4）包装和最小化JS放在dist文件夹里

gulp release

然后D:\code\flv.js-master\dist里就终于得到我们需要flv.js和flv.min.js代码了

flv.js压缩前代码

flv.min.js压缩后代码

二、整合方案

代码DEMO-html页面

<!DOCTYPE html>
<html>

<head>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
    <title>flv.js demo</title>

    <style>
        .mainContainer {
            display: block;
            width: 1024px;
            margin-left: auto;
            margin-right: auto;
        }

        .urlInput {
            display: block;
            width: 100%;
            margin-left: auto;
            margin-right: auto;
            margin-top: 8px;
            margin-bottom: 8px;
        }

        .centeredVideo {
            display: block;
            width: 100%;
            height: 576px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: auto;
        }

        .controls {
            display: block;
            width: 100%;
            text-align: left;
            margin-left: auto;
            margin-right: auto;
        }
    </style>
</head>

<body>
    
    <p class="mainContainer">
        <input name="urlinput" class="urlInput" type="text" value="http://localhost/Test/test1.mp4"/>
        <video name="videoElement" class="centeredVideo" controls autoplay width="1024" height="576">
            Your browser is too old which doesn&#39;t support HTML5 video.
        </video>
        <br>
        <p class="controls">
            <button onclick="flv_load()">Load</button>
            <button onclick="flv_start()">Start</button>
            <button onclick="flv_pause()">Pause</button>
            <button onclick="flv_destroy()">Destroy</button>
            <input style="width:100px" type="text" name="seekpoint"/>
            <button onclick="flv_seekto()">SeekTo</button>
        </p>
    </p>

    <script src="flv.min.js?1.1.9"></script>
    
    <script>
        function flv_load() {
            console.log(&#39;isSupported: &#39; + flvjs.isSupported());
            var urlinput = document.getElementsByName(&#39;urlinput&#39;)[0];
            var xhr = new XMLHttpRequest();
            xhr.open(&#39;GET&#39;, urlinput.value, true);
            xhr.onload = function (e) {
                var player;
                var element = document.getElementsByName(&#39;videoElement&#39;)[0];
                if (typeof player !== "undefined") {
                    if (player != null) {
                        player.unload();
                        player.detachMediaElement();
                        player.destroy();
                        player = null;
                    }
                }
              
                player = flvjs.createPlayer({
                    type: &#39;mp4&#39;,
                    url: urlinput.value
                });
                player.attachMediaElement(element);
                player.load();
            }
            xhr.send();
        }

        function flv_start() {
            player.play();
        }

        function flv_pause() {
            player.pause();
        }

        function flv_destroy() {
            player.pause();
            player.unload();
            player.detachMediaElement();
            player.destroy();
            player = null;
        }

        function flv_seekto() {
            var input = document.getElementsByName(&#39;seekpoint&#39;)[0];
            player.currentTime = parseFloat(input.value);
        }

        function getUrlParam(key, defaultValue) {
            var pageUrl = window.location.search.substring(1);
            var pairs = pageUrl.split(&#39;&&#39;);
            for (var i = 0; i < pairs.length; i++) {
                var keyAndValue = pairs[i].split(&#39;=&#39;);
                if (keyAndValue[0] === key) {
                    return keyAndValue[1];
                }
            }
            return defaultValue;
        }

        var urlInputBox = document.getElementsByName(&#39;urlinput&#39;)[0];
        var url = decodeURIComponent(getUrlParam(&#39;src&#39;, urlInputBox.value));
        urlInputBox.value = url;
        
        document.addEventListener(&#39;DOMContentLoaded&#39;, function () {
            flv_load();
        });
    </script>
    
</body>

</html>

结果

Ps：视频要放在服务器上，这里我用的是Java Web项目，tomcat部署，视频找个位置就可以了，主要是记住位置

如何看待B站 (bilibili) 开源 HTML5 播放器内核 flv.js?

全面解读flv.js代码

The above is the detailed content of Instructions for using the open source code flv.js. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

H5 Code Examples: Practical Applications and TutorialsApr 25, 2025 am 12:10 AM

H5 provides a variety of new features and functions, greatly enhancing the capabilities of front-end development. 1. Multimedia support: embed media through and elements, no plug-ins are required. 2. Canvas: Use elements to dynamically render 2D graphics and animations. 3. Local storage: implement persistent data storage through localStorage and sessionStorage to improve user experience.

The Connection Between H5 and HTML5: Similarities and DifferencesApr 24, 2025 am 12:01 AM

H5 and HTML5 are different concepts: HTML5 is a version of HTML, containing new elements and APIs; H5 is a mobile application development framework based on HTML5. HTML5 parses and renders code through the browser, while H5 applications need to run containers and interact with native code through JavaScript.

The Building Blocks of H5 Code: Key Elements and Their PurposeApr 23, 2025 am 12:09 AM

Key elements of HTML5 include,,,,,, etc., which are used to build modern web pages. 1. Define the head content, 2. Used to navigate the link, 3. Represent the content of independent articles, 4. Organize the page content, 5. Display the sidebar content, 6. Define the footer, these elements enhance the structure and functionality of the web page.

HTML5 and H5: Understanding the Common UsageApr 22, 2025 am 12:01 AM

There is no difference between HTML5 and H5, which is the abbreviation of HTML5. 1.HTML5 is the fifth version of HTML, which enhances the multimedia and interactive functions of web pages. 2.H5 is often used to refer to HTML5-based mobile web pages or applications, and is suitable for various mobile devices.

HTML5: The Building Blocks of the Modern Web (H5)Apr 21, 2025 am 12:05 AM

HTML5 is the latest version of the Hypertext Markup Language, standardized by W3C. HTML5 introduces new semantic tags, multimedia support and form enhancements, improving web structure, user experience and SEO effects. HTML5 introduces new semantic tags, such as, ,, etc., to make the web page structure clearer and the SEO effect better. HTML5 supports multimedia elements and no third-party plug-ins are required, improving user experience and loading speed. HTML5 enhances form functions and introduces new input types such as, etc., which improves user experience and form verification efficiency.

H5 Code: Writing Clean and Efficient HTML5Apr 20, 2025 am 12:06 AM

How to write clean and efficient HTML5 code? The answer is to avoid common mistakes by semanticizing tags, structured code, performance optimization and avoiding common mistakes. 1. Use semantic tags such as, etc. to improve code readability and SEO effect. 2. Keep the code structured and readable, using appropriate indentation and comments. 3. Optimize performance by reducing unnecessary tags, using CDN and compressing code. 4. Avoid common mistakes, such as the tag not closed, and ensure the validity of the code.

H5: How It Enhances User Experience on the WebApr 19, 2025 am 12:08 AM

H5 improves web user experience with multimedia support, offline storage and performance optimization. 1) Multimedia support: H5 and elements simplify development and improve user experience. 2) Offline storage: WebStorage and IndexedDB allow offline use to improve the experience. 3) Performance optimization: WebWorkers and elements optimize performance to reduce bandwidth consumption.

Deconstructing H5 Code: Tags, Elements, and AttributesApr 18, 2025 am 12:06 AM

HTML5 code consists of tags, elements and attributes: 1. The tag defines the content type and is surrounded by angle brackets, such as. 2. Elements are composed of start tags, contents and end tags, such as contents. 3. Attributes define key-value pairs in the start tag, enhance functions, such as. These are the basic units for building web structure.

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Assassin's Creed Shadows: Seashell Riddle Solution

4 weeks agoByDDD

What's New in Windows 11 KB5054979 & How to Fix Update Issues

3 weeks agoByDDD

Where to find the Crane Control Keycard in Atomfall

4 weeks agoByDDD

Roblox: Dead Rails - How To Complete Every Challenge

1 months agoByDDD

Atomfall guide: item locations, quest guides, and tips

1 months agoByDDD

Hot Tools

SublimeText3 English version

Recommended: Win version, supports code prompts!

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.