SourceBuffer.appendWindowEnd

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  1. Syntax
  2. Example
  3. Specifications
  4. Browser compatibility
  5. See also

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

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The appendWindowEnd property of the SourceBuffer interface controls the timestamp for the end of the append window, a timestamp range that can be used to filter what media data is appended to the SourceBuffer. Coded media frames with timestamps wthin this range will be appended, whereas those outside the range will be filtered out.

The default value of appendWindowEnd is positive infinity.

Syntax

var myAppendWindowEnd = sourceBuffer.appendWindowEnd;

sourceBuffer.appendWindowEnd = 120.0;

Value

A double, indicating the end time of the append window, in seconds.

Errors

The following errors may be thrown when setting a new value for this property.

Error Explanation
InvalidAccessError An attempt was made to set the value to less than or equal to SourceBuffer.appendWindowStart, or NaN.
InvalidStateError This SourceBuffer object is being updated (i.e. its SourceBuffer.updating property is currently true), or this SourceBuffer has been removed from the MediaSource.

Example

TBD

Specifications

Specification Status Comment
Media Source Extensions
The definition of 'appendWindowEnd' in that specification.		 Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
appendWindowEndChrome Full support 23Edge Full support 12Firefox Full support 42
Full support 42
No support 25 — 42
Notes Disabled
Notes Limited support to a whitelist of sites, for example YouTube, Netflix, and other popular streaming sites. The whitelist was removed when Media Source Extensions was enabled by default in Firefox 42.
Disabled From version 25 until version 42 (exclusive): this feature is behind the media.mediasource.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE Full support 11
Notes
Full support 11
Notes
Notes Only works on Windows 8+.
Opera Full support 15Safari Full support 8WebView Android Full support 4.4.3Chrome Android Full support 33Edge Mobile Full support YesFirefox Android No support NoOpera Android Full support 14Safari iOS No support NoSamsung Internet Android ?

Legend

Full support  
Full support
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No support
Compatibility unknown  
Compatibility unknown
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

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