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TextTrack: sourceBuffer property - Web APIs | MDN
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TextTrack: sourceBuffer property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

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The read-only sourceBuffer property of the TextTrack interface returns the SourceBuffer that created the track, or null if the track was not created by a SourceBuffer or the SourceBuffer has been removed from the MediaSource.sourceBuffers attribute of its parent media source.

In this article

Value

A SourceBuffer or null.

Specifications

Specification
Media Source Extensions
# dom-texttrack-sourcebuffer

Browser compatibility

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This page was last modified on Aug 31, 2024 by MDN contributors.

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  1. Media Source API
  2. TextTrack
  3. Instance properties
    1. activeCues
    2. cues
    3. id
    4. inBandMetadataTrackDispatchType
    5. kind
    6. label
    7. language
    8. mode
    9. sourceBuffer
  4. Instance methods
    1. addCue()
    2. removeCue()
  5. Events
    1. cuechange
  6. Inheritance
    1. EventTarget
  7. Related pages for Media Source Extensions
    1. AudioTrack.sourceBuffer
    2. HTMLMediaElement.buffered
    3. HTMLMediaElement.seekable
    4. HTMLMediaElement.srcObject
    5. HTMLVideoElement.getVideoPlaybackQuality()
    6. MediaSource
    7. MediaSourceHandle
    8. SourceBuffer
    9. SourceBufferList
    10. TextTrack.sourceBuffer
    11. VideoPlaybackQuality
    12. VideoTrack.sourceBuffer
  8. Guides
    1. Transcoding assets for Media Source Extensions
    2. DASH Adaptive Streaming for HTML video
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