Optional ReadonlycontentThe content type this span was measured for, when known. Set alongside
mimeType for DRM license spans.
ReadonlyendWhen the stage completed, as a unix millisecond timestamp.
ReadonlykindOptional ReadonlymimeThe MIME type of the content this span was measured for, when known. Set
for DRM license spans so a certificate exchange and the per-content-type
license exchanges are distinguishable.
ReadonlystartWhen the stage began, as a unix millisecond timestamp.
ReadonlytrackThe track this span was measured for, stamped at the source by the emitter that knows which track initiated the load. Omitted only when the initiating track is not yet known (e.g. an encrypted event handled before buffering DRM info is set).
A LoadSpanMeasurement attributed to the track it was measured for.
Emitted on the player as the
loadSpanevent.