Constructor
new PeriodObserver(manifest)
The period observer needs an always-up-to-date collection of periods,
and right now the only way to have that is to reference the manifest.
Parameters:
| Name | Type | Description |
|---|---|---|
manifest |
shaka.extern.Manifest |
- Implements:
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Members
(private, nullable) currentPeriod_ :shaka.extern.Period
This will be which period we think the playhead is currently in. If it is
|null|, it means we don't know. We say "we think" because this may become
out-of-date between updates.
Type:
- Source:
Methods
(private) findCurrentPeriod_(currentTimeSeconds) → {shaka.extern.Period}
Find which period we are most likely in based on the current manifest and
current time. The value here may be different than |this.currentPeriod_|,
if that is true, it means we changed periods since the last time we updated
|this.currentPeriod_|.
Parameters:
| Name | Type | Description |
|---|---|---|
currentTimeSeconds |
number |
- Source:
Returns:
- Type
- shaka.extern.Period
(private) onChangedPeriods_()
The callback for when we change periods. To avoid null-checks, assign it
a no-op when there is no external callback assigned to it. When we move
into a new period, this callback will be called with the new period.
- Source:
poll(positionInSeconds, wasSeeking)
Check again (using an update playhead summary) if an event should be fired.
If an event should be fired, fire it.
Parameters:
| Name | Type | Description |
|---|---|---|
positionInSeconds |
number | |
wasSeeking |
boolean |
- Implements:
- Source:
(export) release()
Request that this object release all internal references.
- Inherited From:
- Implements:
- Source:
setListeners(onChangedPeriods)
Set all callbacks. This will override any previous calls to |setListeners|.
Parameters:
| Name | Type | Description |
|---|---|---|
onChangedPeriods |
function(shaka.extern.Period) | The callback for when we move to a new period. |
- Source: