ForwardingTimeline

@UnstableApi
public abstract class ForwardingTimeline extends Timeline

java.lang.Object
   ↳ androidx.media3.common.Timeline
     ↳ androidx.media3.exoplayer.source.ForwardingTimeline
Known direct subclasses
FakeMediaSource.InitialTimeline

A forwarding timeline to provide an initial timeline for fake multi window sources.
SinglePeriodAdTimeline

A Timeline for sources that have ads.
TimelineWithUpdatedMediaItem

A Timeline that overrides the MediaItem.

An overridable Timeline implementation forwarding all methods to another timeline.

Summary

Protected fields
final Timeline

Public constructors

Public methods
int
getFirstWindowIndex(boolean shuffleModeEnabled)

Returns the index of the first window in the playback order depending on whether shuffling is enabled.
int

Returns the index of the period identified by its unique uid, or INDEX_UNSET if the period is not in the timeline.
int
getLastWindowIndex(boolean shuffleModeEnabled)

Returns the index of the last window in the playback order depending on whether shuffling is enabled.
int
getNextWindowIndex(
    int windowIndex,
    @Player.RepeatMode int repeatMode,
    boolean shuffleModeEnabled
)

Returns the index of the window after the window at index windowIndex depending on the repeatMode and whether shuffling is enabled.
Timeline.Period
getPeriod(int periodIndex, Timeline.Period period, boolean setIds)

Populates a Period with data for the period at the specified index.
int

Returns the number of periods in the timeline.
int
getPreviousWindowIndex(
    int windowIndex,
    @Player.RepeatMode int repeatMode,
    boolean shuffleModeEnabled
)

Returns the index of the window before the window at index windowIndex depending on the repeatMode and whether shuffling is enabled.
Object
getUidOfPeriod(int periodIndex)

Returns the unique id of the period identified by its index in the timeline.
Timeline.Window
getWindow(
    int windowIndex,
    Timeline.Window window,
    long defaultPositionProjectionUs
)

Populates a Window with data for the window at the specified index.
int

Returns the number of windows in the timeline.

Inherited Constants
From androidx.media3.common.Timeline
static final Timeline

An empty timeline.

Inherited methods
From androidx.media3.common.Timeline
final Timeline

Returns a copy of this timeline containing just the single specified Window.
boolean
static Timeline

Restores a Timeline from a Bundle.
final int
getNextPeriodIndex(
    int periodIndex,
    Timeline.Period period,
    Timeline.Window window,
    @Player.RepeatMode int repeatMode,
    boolean shuffleModeEnabled
)

Returns the index of the period after the period at index periodIndex depending on the repeatMode and whether shuffling is enabled.
final Timeline.Period
getPeriod(int periodIndex, Timeline.Period period)

Populates a Period with data for the period at the specified index.
Timeline.Period
getPeriodByUid(Object periodUid, Timeline.Period period)

Populates a Period with data for the period with the specified unique identifier.
final Pair<Object, Long>
@UnstableApi
@InlineMe(replacement = "this.getPeriodPositionUs(window, period, windowIndex, windowPositionUs)")
getPeriodPosition(
    Timeline.Window window,
    Timeline.Period period,
    int windowIndex,
    long windowPositionUs
)

This method is deprecated.

Use getPeriodPositionUs instead.
final @Nullable Pair<Object, Long>
@UnstableApi
@InlineMe(replacement = "this.getPeriodPositionUs(" + "window, period, windowIndex, windowPositionUs, defaultPositionProjectionUs)")
getPeriodPosition(
    Timeline.Window window,
    Timeline.Period period,
    int windowIndex,
    long windowPositionUs,
    long defaultPositionProjectionUs
)

This method is deprecated.

Use getPeriodPositionUs instead.
final Pair<Object, Long>
getPeriodPositionUs(
    Timeline.Window window,
    Timeline.Period period,
    int windowIndex,
    long windowPositionUs
)

Calls getPeriodPositionUs with a zero default position projection.
final @Nullable Pair<Object, Long>
getPeriodPositionUs(
    Timeline.Window window,
    Timeline.Period period,
    int windowIndex,
    long windowPositionUs,
    long defaultPositionProjectionUs
)

Converts (windowIndex, windowPositionUs) to the corresponding (periodUid, periodPositionUs).
final Timeline.Window
getWindow(int windowIndex, Timeline.Window window)

Populates a Window with data for the window at the specified index.
int
final boolean

Returns whether the timeline is empty.
final boolean
isLastPeriod(
    int periodIndex,
    Timeline.Period period,
    Timeline.Window window,
    @Player.RepeatMode int repeatMode,
    boolean shuffleModeEnabled
)

Returns whether the given period is the last period of the timeline depending on the repeatMode and whether shuffling is enabled.
final Bundle

Returns a Bundle representing the information stored in this object.

Protected fields

timeline

protected final Timeline timeline

Public constructors

ForwardingTimeline

public ForwardingTimeline(Timeline timeline)

Public methods

getFirstWindowIndex

public int getFirstWindowIndex(boolean shuffleModeEnabled)

Returns the index of the first window in the playback order depending on whether shuffling is enabled.

Parameters
boolean shuffleModeEnabled

Whether shuffling is enabled.
Returns
int

The index of the first window in the playback order, or INDEX_UNSET if the timeline is empty.

getIndexOfPeriod

public int getIndexOfPeriod(Object uid)

Returns the index of the period identified by its unique uid, or INDEX_UNSET if the period is not in the timeline.

Parameters
Object uid

A unique identifier for a period.
Returns
int

The index of the period, or INDEX_UNSET if the period was not found.

getLastWindowIndex

public int getLastWindowIndex(boolean shuffleModeEnabled)

Returns the index of the last window in the playback order depending on whether shuffling is enabled.

Parameters
boolean shuffleModeEnabled

Whether shuffling is enabled.
Returns
int

The index of the last window in the playback order, or INDEX_UNSET if the timeline is empty.

getNextWindowIndex

public int getNextWindowIndex(
    int windowIndex,
    @Player.RepeatMode int repeatMode,
    boolean shuffleModeEnabled
)

Returns the index of the window after the window at index windowIndex depending on the repeatMode and whether shuffling is enabled.

Parameters
int windowIndex

Index of a window in the timeline.
@Player.RepeatMode int repeatMode

A repeat mode.
boolean shuffleModeEnabled

Whether shuffling is enabled.
Returns
int

The index of the next window, or INDEX_UNSET if this is the last window.

getPeriod

public Timeline.Period getPeriod(int periodIndex, Timeline.Period period, boolean setIds)

Populates a Period with data for the period at the specified index.

Parameters
int periodIndex

The index of the period.
Timeline.Period period

The Period to populate. Must not be null.
boolean setIds

Whether id and uid should be populated. If false, the fields will be set to null. The caller should pass false for efficiency reasons unless the fields are required.
Returns
Timeline.Period

The populated Period, for convenience.

getPeriodCount

public int getPeriodCount()

Returns the number of periods in the timeline.

getPreviousWindowIndex

public int getPreviousWindowIndex(
    int windowIndex,
    @Player.RepeatMode int repeatMode,
    boolean shuffleModeEnabled
)

Returns the index of the window before the window at index windowIndex depending on the repeatMode and whether shuffling is enabled.

Parameters
int windowIndex

Index of a window in the timeline.
@Player.RepeatMode int repeatMode

A repeat mode.
boolean shuffleModeEnabled

Whether shuffling is enabled.
Returns
int

The index of the previous window, or INDEX_UNSET if this is the first window.

getUidOfPeriod

public Object getUidOfPeriod(int periodIndex)

Returns the unique id of the period identified by its index in the timeline.

Parameters
int periodIndex

The index of the period.
Returns
Object

The unique id of the period.

getWindow

public Timeline.Window getWindow(
    int windowIndex,
    Timeline.Window window,
    long defaultPositionProjectionUs
)

Populates a Window with data for the window at the specified index.

Parameters
int windowIndex

The index of the window.
Timeline.Window window

The Window to populate. Must not be null.
long defaultPositionProjectionUs

A duration into the future that the populated window's default start position should be projected.
Returns
Timeline.Window

The populated Window, for convenience.

getWindowCount

public int getWindowCount()

Returns the number of windows in the timeline.