This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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. |
Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 31 23 — 31 -webkit- | 12 | 42 | 113 | 15 | 8 |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | 33 | ? | Yes | No | 30 | No | ? |
1. 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.
2. 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.
3. Only works on Windows 8+.