SourceBuffer: appendWindowStart property
Note: This feature is available in Dedicated Web Workers.
The appendWindowStart
property of the
SourceBuffer
interface controls the timestamp for the start 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 within this range will be
appended, whereas those outside the range will be filtered out.
The default value of appendWindowStart
is the presentation start time,
which is the beginning time of the playable media.
Value
A double, indicating the start time of the append window, in seconds.
Exceptions
The following exceptions may be thrown when setting a new value for this property:
InvalidAccessError
DOMException
-
Thrown if an attempt was made to set the value to less than 0 or to a value greater than or equal to
SourceBuffer.appendWindowEnd
. InvalidStateError
DOMException
-
Thrown if this
SourceBuffer
object is being updated (i.e. itsSourceBuffer.updating
property is currentlytrue
), or thisSourceBuffer
has been removed from theMediaSource
.
Examples
TBD
Specifications
Specification |
---|
Media Source Extensions™ # dom-sourcebuffer-appendwindowstart |
Browser compatibility
BCD tables only load in the browser