Radiant Media Player

Generic player settings

Documentation sections

Generic player settings

Here we present general player settings. Specific player settings are available in each documentation page for the related feature.

licenseKey: String

The license key ties your player with an Internet domain. It is a mandatory requirement for the player to work. For active customers license keys and Internet domains are managed in Radiant Media Player back-end.

loop: Boolean

Command the player to loop after the video ends. This is only supported for on-demand video. Default: false.
The loop setting is not supported with video ads on iOS as it can create content recovery issue. When video ads are set the loop setting is automatically set to false on iOS.
The loop setting is only supported with iOS on version 10+. It is automatically set to false on iOS 9 and below.
Do not use the loop setting with post-roll video ads. This use case it not supported.

initialVolume: Number

Command the player to start with a specific initial volume. Value must be a Number between 0 (no volume) and 1 (maximum volume) where for example 0.5 will set the volume half-way. Default: 1.
When muted setting is set to true or on device where only muted autoplay is allowed (and autoplay is requested) this setting will have no effect

muted: Boolean

Command the player to be started as muted a.k.a. no audio. On iOS this setting is supported from iOS 10. Default: false.

permanentMuted: Boolean

Command the player to be started and to remain muted permanently (a.k.a. no audio). This differs from the muted setting in the sense that the viewer will not be able to restore volume using the player controls, keyboard or device volume controls. On iOS this setting is supported from iOS 10. Default: false.

rememberVolume: Boolean

When set to true this setting will cause the player to use localStorage to save the current player volume each time it is changed by viewer. On a new page load if a saved volume value is detected in localStorage this saved value will be used to set initial player volume. Default: true.

scaleMode: String

This parameter changes the way the video is rendered within the stage. Possible values are 'letterbox' (a.k.a. fit), 'zoom', 'stretch', 'none'. Default: 'letterbox'. . This feature makes use of the object-fit CSS property for HTML5 video. It is to be noted that this CSS property is currently not supported in MS Edge or Internet Explorer (for those browsers where object-fit is not supported the player uses a 'letterbox' fallback).
The scale mode setting only applies to video content. Linear video ads may not follow the scaleMode setting.

posterScaleMode: String

This parameter changes the way the poster is rendered within the stage (same as scaleMode but for the poster frame). Possible values are 'letterbox', 'zoom', 'stretch', 'none'. Default: 'letterbox'. This feature makes use of the object-fit CSS property for HTML images. It is to be noted that this CSS property is currently not supported in MS Edge or Internet Explorer (for those browsers where object-fit is not supported the player uses a 'letterbox' fallback).

poster: String

The path or URL to the poster (image) shown while the video is downloading, or until the user hits the play button. Default: ''.

endOfVideoPoster: String

The path or URL to the end of video poster (image) shown when the video content has completed. Default: ''.

crossorigin: String

This parameter allows to set the crossorigin attribute for Radiant Media Player HTML5 video tag. Default: ''. Other possible values are: 'anonymous', 'use-credentials'. For 360 video this setting is automatically set to 'anonymous' for better cross-device support.

contentTitle: String

Set the content title string to be displayed on the player (beneath central play button). Default: '' which means no content title is displayed.

contentDescription: String

Set the media content description that could be used for better accessibility purposes. If set this setting will add a label link to the player container. This label will have the text provided by contentDescription and the player container will have a aria-describedby referencing this label.

contentID: String

This setting allows to set a unique reference to the player (or the content displayed). It can be managed with API methods getContentID & setContentID. Default: ''.

videoTitle: String

This setting sets the title attribute of the HTML5 media element used by Radiant Media Player in iOS. This will only have effect in iOS as the title attribute can be picked up by the OS to display content title in iOS control center. If contentTitle is set to a non-empty string, but videoTitle is not set, contentTitle will be used as title attribute. In playlist/related the contentTitle of each item can be used as videoTitle, but the initial value of videoTitle must be set to 'playlist'. Default: '', which means title attribute is not set. API methods getVideoTitle and setVideoTitle can be used to get|set videoTitle (note that using setContentTitle will not set videoTitle you need to explicitely use setVideoTitle).

offsetStartPosition: Number

This setting tells the player to start at a given timestamp. Must be expressed in millisecond. Default: 0, which means no offset.

quickRewind: Number

This setting tells the player to display a quick rewind icon within the control bar. Interacting with this icon will cause the player to quickly rewind its play-head according to the quickRewind submitted value. Possible values for quickRewind setting are: 5, 10, 30. Those values respectively represent a quick rewind of 5s, 10s or 30s. A common value in the industry is 10s but you may want to adapt this based on the type of content being delivered (e.g. short-form vs. long-form content). Default: 0, which means no quick rewind icon is shown on player. The quick rewind icon is not available with the following options: HTML5 audio player, related content, live or DVR content.

allowLocalStorage: Boolean

The player does use localStorage for the following purposes: to faster authenticate the player license, when using the rememberVolume setting. The player does not store personal data when it uses localStorage, but only technical, anonymous variables. If you do not want the player to access the viewer localStorage set allowLocalStorage to false. Note that this only applies to the player core library, 3rd-party libraries like the Google IMA SDK will use cookies and may require specific consent handling depending on your targeted audience. Default: true.

Source streaming data

Source streaming data (HLS, DASH or progressive download URLs) are passed to the player through the src player setting:

src: Object

This setting holds streaming information for the content to be displayed: HLS streaming, DASH streaming or/and MP4/WebM progressive download. You must provide at least one streaming URL for the player to display content (exception being for outstream video ads which do not require actual content). For audio-only streaming refer to the audio-only documentation page. When multiple streaming protocols are provided the player will opt for the best suitable candidate based on device capabilities. Example:

var src = { 
  hls: 'https://your-hls-url.m3u8',
  dash: 'https://your-dash-url.mpd',
  mp4: [
  webm: [

We recommend using fully qualified URLs for your streaming data. Relative or absolute path can also be used but beware of pathing issues.

The above example shows all player capabilities. You do not need to provide all streaming protocols variant to the player - only use the one that you are able to provide. Expected types for the src object properties follow:

src.hls: String
src.dash: String
src.mp4: Array
src.webm: Array

The player will follow the following order when opting for a streaming protocol as multiple options may be supported by a given device:

  • HLS to HTML5 video (MSE-based) first
  • HLS to HTML5 video (native) second
  • DASH to HTML5 video (MSE-based) third
  • MP4 progressive download to HTML5 video fourth
  • WebM progressive download to HTML5 video fifth

Note that the dashFirst and webmFirst settings may be used to alter this order.

Depending on your use-case you could want to use:

  • HLS alone
  • DASH + HLS fallback (or DASH + MP4 progressive download fallback) - fallback is required to target iOS as DASH is not available on iOS
  • MP4 progressive download + WebM progressive download fallback (WebM fallback is optional but may help to support older browsers)
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