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    SourceBuffer.trackDefaults

    This is an experimental technology
    Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use 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 spec changes.

    Draft
    This page is not complete.

    The trackDefaults property of the SourceBuffer interface specifies the default values to use if kind, label, and/or language information is not available in the initialization segment of the media to be appended to the SourceBuffer.

    SyntaxEdit

    var myTrackDefaults = sourceBuffer.trackDefaults;

sourceBuffer.trackDefaults = myTrackDefaultList;

    Value

    A TrackDefaultList object.

    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), or this SourceBuffer has been removed from the MediaSource.

    ExampleEdit

    TBD

    SpecificationsEdit

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

    Browser compatibilityEdit

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
    Basic support ? Not supported ? ? ?

    See alsoEdit

    Document Tags and Contributors

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