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SourceBuffer.timestampOffset

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

Draft
This page is not complete.

The timestampOffset property of the SourceBuffer interface controls the offset applied to timestamps inside media segments that are appended to the SourceBuffer.

The initial value of timestampOffset is 0.

Syntax

var myOffset = sourceBuffer.timestampOffset;

sourceBuffer.timestampOffset = 2.5;

Value

A double, with the offset amount expressed in seconds.

Errors

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

Error Explanation
InvalidStateError One or more of the SourceBuffer objects in MediaSource.sourceBuffers are being updated (i.e. their SourceBuffer.updating property is currently true), a media segment inside the SourceBuffer is currently being parsed, or this SourceBuffer has been removed from the MediaSource.

Example

TBD

Specifications

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

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 23 (Yes) 25.0 (25.0)[1]
42.0 (42.0)
11[2] 15 8
Feature Android Edge Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support 4.4.4 (Yes)

No support

No support 11 30 No support

[1] Available after switching the about:config preference media.mediasource.enabled to true. In addition, support was limited to a whitelist of sites, for example YouTube, Netflix, and other popular streaming sites. The whitelist was removed and Media Source Extensions was enabled by default in 42+ for all sites.

[2] Only works on Windows 8+.

See also

Document Tags and Contributors

 Contributors to this page: abbycar, chrisdavidmills
 Last updated by: abbycar,