Config to determine the initial playback state of the Player.

All options passed in this config, will be considered as the starting state of the player, therefore no events will be triggered signaling a potential change compared to the player default logic.

Example:

playback : {
autoplay: false,
muted: false,
audioLanguage: ['en', 'es', 'de'],
subtitleLanguage: 'en',
preferredTech: [{
player: 'html5',
streaming: 'dash'
}, {
player: 'native',
streaming: 'hls'
}]
}
interface PlaybackConfig {
    audioCodecPriority?: string[];
    audioLanguage?: string | string[];
    autoplay?: boolean;
    isForcedSubtitle?: ((subtitle) => boolean);
    muted?: boolean;
    playsInline?: boolean;
    preferredTech?: PreferredTechnology[];
    seeking?: boolean;
    subtitleLanguage?: string | string[];
    timeShift?: boolean;
    videoCodecPriority?: string[];
    volume?: number;
}

Properties

audioCodecPriority?: string[]

Specify the priority of audi codecs. If more than one audio codec is available this order will be respected while finding a codec which is supported by the current browser. If there is a codec which is not in this priority list, it will be tried only if none of this list are available / supported Default is ['ec-4', 'ac-4', 'ec-3', 'mp4a.a6', 'ac-3', 'mp4a.a5', 'mp4a.40']

Since

7.6

audioLanguage?: string | string[]

Defines one or more audio languages which should be used in the specified order on start up.

autoplay?: boolean

Whether the player starts playing after loading a source or not (false, default). Note that unmuted autoplay is blocked on several browsers, check for Warning with code PLAYBACK_COULD_NOT_BE_STARTED for detecting the blocking.

isForcedSubtitle?: ((subtitle) => boolean)

Determines if the subtitle should be selected by the player per default and kept in sync with the selected audio language. The subtitle will not appear in list and can't be deactivated or activated through the API.

Per default subtitle tracks with forced=true will be selected. In case of DASH these are subtitles with the role forced_subtitle and in case of HLS subtitles with the attribute FORCED=YES.

Type declaration

    • (subtitle): boolean
    • Parameters

      Returns boolean

muted?: boolean

Whether the sound is muted on startup or not (false, default).

playsInline?: boolean

Whether to add the playsinline attribute to the video element or not. This stops videos immediately going fullscreen after starting playback on iOS for example. Default is true.

preferredTech?: PreferredTechnology[]

An array of objects to specify the player and streaming technology order to use. If the first is supported, this technologies are used. If not, the second is tried etc. If none of the specified combinations are supported, then a SOURCE_NO_SUPPORTED_TECHNOLOGY will be thrown.

Player technologies:

  • html5 refers to the MediaSource Extension (MSE) based JavaScript player
  • native refers to the browser’s native capabilities are being used, e.g. playing back HLS in Safari on iOS

Currently supported combinations:

{ player: 'html5', streaming: 'dash'}
{ player: 'html5', streaming: 'hls'}
{ player: 'html5', streaming: 'smooth'}
{ player: 'native', streaming: 'hls'}
{ player: 'native', streaming: 'progressive'}

Example:

preferredTech : [{
player: 'html5',
streaming: 'dash'
}, {
player: 'native',
streaming: 'hls'
}]
seeking?: boolean

Whether to allow seeking or not. Default is true.

subtitleLanguage?: string | string[]

Defines one or more subtitle languages which should be used in the specified order on start up.

timeShift?: boolean

Enables time shift / DVR for live streams. Default is true (enabled). If time shift is disabled (set to false), the timeline (scrub bar) will not be shown any more.

videoCodecPriority?: string[]

Specify the priority of video codecs for this source. If more than one video codec is available this order will be respected while finding a codec which is supported by the current browser. If there is a codec which is not in this priority list, it will be tried only if none of this list are available / supported. Default is ['dvhe', 'dvh1', 'vvc', 'vvi', 'av1', 'hevc', 'hev', 'hvc', 'vp9', 'avc']

Since

7.6

volume?: number

Defines the volume level of the player when started for the first time. Default value is 100.

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