MediaSourceInterface

https://dom.spec.whatwg.org/#interface-eventtarget

Extends

• EventTarget

Properties

activeSourceBuffers

readonly activeSourceBuffers: SourceBufferList

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-activesourcebuffers.

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duration

duration: number

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-duration.

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onsourceclose

onsourceclose: EventListener

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceclose

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onsourceended

onsourceended: EventListener

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceended

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onsourceopen

onsourceopen: EventListener

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-onsourceopen

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readyState

readonly readyState: ReadyState

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-readystate.

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sourceBuffers

readonly sourceBuffers: SourceBufferList

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-sourcebuffers.

Methods

addEventListener()

addEventListener(type, listener, options?): void

Adds an event listener.

Parameters

type

string

The event to listen to.

listener

EventListener

The Event Handler function.

options?

Ignore.

boolean

AddEventListenerOptions

Returns

void

Inherited from

EventTarget.addEventListener

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addSourceBuffer()

addSourceBuffer(type): SourceBuffer

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-addsourcebuffer.

Parameters

type

string

Mime type.

Returns

SourceBuffer

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clearLiveSeekableRange()

clearLiveSeekableRange(): void

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-clearliveseekablerange.

Returns

void

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dispatchEvent()?

optional dispatchEvent(event): boolean

Dispatches an event to the target

Parameters

event

Event

The event which signals an occurrenceo.

Returns

boolean

TODO

Add and define in the implementations, keep it optional for now.

Inherited from

EventTarget.dispatchEvent

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endOfStream()

endOfStream(error?): void

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-endofstream.

Parameters

error?

EndOfStreamError

Returns

void

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removeEventListener()

removeEventListener(type, listener, options?): void

Removes an event listener.

Parameters

type

string

The event to listen to.

listener

EventListener

The Event Handler function to be removed.

options?

Ignore.

boolean

EventListenerOptions

Returns

void

Inherited from

EventTarget.removeEventListener

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removeSourceBuffer()

removeSourceBuffer(sourceBuffer): void

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-removesourcebuffer.

Parameters

sourceBuffer

SourceBuffer

source buffer instance to be removed.

Returns

void

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setLiveSeekableRange()

setLiveSeekableRange(start, end): void

For additional information, see https://www.w3.org/TR/media-source-2/#dom-mediasource-setliveseekablerange.

Parameters

start

number

end

number

Returns

void

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Last updated: Oct 02, 2025