Web SDK 2.0 - EN
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Table of Contents

Example of stream convertion to HLS and playing it in browser supporting HLS natively

The player shows how to convert stream published on WCS server to HLS and play it in browser. HLS stream cut starts automatically when strea is requested by HLS URL, for example https://demo.flashphoner.com:8445/test/test.m3u8 on the screenshot below

The code of the example

The source code can be accessed on server by the following path:

...

Where host is WCS server address

Analyzing the code

...

To analize the code get hlsget hls-native.js file version with hash 51703a2 ecbadc3 which is available available here and can be downloaded in build build 2.0.5.28.2753.141212.

1. A server HLS URL detection

getHLSUrl() code

Code Block
languagejs
themeRDark
function initPage() {
    $("#header").text("HLS Native Player Minimal");
    $("#urlServer").val(getHLSUrl());
    ...
}

2. div element setup to pass to the player

code

A div element for stream playback is passed to player

...

3. Stream name detection (the stream should be published to server)

encodeURIComponent() code

Code Block
languagejs
themeRDark
function playBtnClick() {
    if (validateForm()) {
        var streamName = $('#playStream').val();
        streamName = encodeURIComponent(streamName);
        ...
    }
}

4. HLS stream URL forming

code

If authentication key and token are set, they will be included to stream URL

Code Block
languagejs
themeRDark
function playBtnClick() {
    if (validateForm()) {
        ...
        var videoSrc = $("#urlServer").val() + '/' + streamName + '/' + streamName + '.m3u8';
        var key = $('#key').val();
        var token = $("#token").val();
        if (key.length > 0 && token.length > 0) {
            videoSrc += "?" + key + "=" + token;
        }
        ...
    }
}

5. Player starting

code

If browser does not support HLS playback natively, player will not be launched and a warning will be displayed

Code Block
languagejs
themeRDark
function playBtnClick() {
    if (validateForm()) {
        ...
        if (remoteVideo.canPlayType('application/vnd.apple.mpegurl')) {
            remoteVideo.src = videoSrc;
            remoteVideo.addEventListener('loadedmetadata', function() {
                console.log("Play native HLS");
                remoteVideo.play();
                onStarted();
            });
        }
        else {
            $("#notifyFlash").text("Your browser doesn't support native HLS playback");
        }
    }
}

6. Playback stopping

code

Code Block
languagejs
themeRDark
function stopBtnClick() {
    if (remoteVideo != null) {
        console.log("Stop HTML5 player");
        remoteVideo.pause();
        remoteVideo.currentTime = 0;
        remoteVideo.removeAttribute('src');
        remoteVideo.load();
    }
    onStopped();
}