An HTML5 Flash Video (FLV) Player written in pure JavaScript without Flash. LONG LIVE FLV!

This project relies on Media Source Extensions to work.

flv.js works by transmuxing FLV file stream into ISO BMFF (Fragmented MP4) segments, followed by feeding mp4 segments into an HTML5 <video> element through Media Source Extensions API.

flv.js is written in ECMAScript 6, transpiled into ECMAScript 5 by Babel Compiler, and bundled with Browserify.

• FLV container with H.264 + AAC codec playback
• Multipart segmented video playback
• HTTP FLV low latency live stream playback
• FLV over WebSocket live stream playback
• Compatible with Chrome, FireFox, Safari 10, IE11 and Edge
• Extremely low overhead, and hardware accelerated by your browser!

npm install --save flv.js

npm install          # install dev-dependences
npm install -g gulp  # install build tool
gulp release         # packaged & minimized js will be emitted in dist folder

cnpm mirror is recommended if you are in Mainland China.

If you use standalone video server for FLV stream, Access-Control-Allow-Origin header must be configured correctly on video server for cross-origin resource fetching.

See cors.md for more details.

<script src="flv.min.js"></script>
<video id="videoElement"></video>
<script>
    if (flvjs.isSupported()) {
        var videoElement = document.getElementById('videoElement');
        var flvPlayer = flvjs.createPlayer({
            type: 'flv',
            url: 'https://example.com/flv/video.flv'
        });
        flvPlayer.attachMediaElement(videoElement);
        flvPlayer.load();
        flvPlayer.play();
    }
</script>

You only have to provide a playlist for MediaDataSource. See multipart.md

See livestream.md

See api.md

See design.md

Copyright (C) 2016 Bilibili. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.