Timeline.Window (ExoPlayer library)

java.lang.Object
- com.google.android.exoplayer2.Timeline.Window

Enclosing class:

Timeline
```
public static final class Timeline.Window
extends Object
```
Holds information about a window in a Timeline. A window usually corresponds to one playlist item and defines a region of media currently available for playback along with additional information such as whether seeking is supported within the window. The figure below shows some of the information defined by a window, as well as how this information relates to corresponding Periods in the timeline.

Field Summary

Fields
Modifier and Type	Field	Description
`long`	`defaultPositionUs`	The default position relative to the start of the window at which to begin playback, in microseconds.
`long`	`durationUs`	The duration of this window in microseconds, or `C.TIME_UNSET` if unknown.
`long`	`elapsedRealtimeEpochOffsetMs`	The offset between `SystemClock.elapsedRealtime()` and the time since the Unix epoch according to the clock of the media origin server, or `C.TIME_UNSET` if unknown or not applicable.
`int`	`firstPeriodIndex`	The index of the first period that belongs to this window.
`boolean`	`isDynamic`	Whether this window may change when the timeline is updated.
`boolean`	`isLive`	Deprecated. Use `isLive()` instead.
`boolean`	`isPlaceholder`	Whether this window contains placeholder information because the real information has yet to be loaded.
`boolean`	`isSeekable`	Whether it's possible to seek within this window.
`int`	`lastPeriodIndex`	The index of the last period that belongs to this window.
`MediaItem.LiveConfiguration`	`liveConfiguration`	The `MediaItem.LiveConfiguration` that is used or null if `isLive()` returns false.
`Object`	`manifest`	The manifest of the window.
`MediaItem`	`mediaItem`	The `MediaItem` associated to the window.
`long`	`positionInFirstPeriodUs`	The position of the start of this window relative to the start of the first period belonging to it, in microseconds.
`long`	`presentationStartTimeMs`	The start time of the presentation to which this window belongs in milliseconds since the Unix epoch, or `C.TIME_UNSET` if unknown or not applicable.
`static Object`	`SINGLE_WINDOW_UID`	A `uid` for a window that must be used for single-window `Timelines`.
`Object`	`tag`	Deprecated. Use `mediaItem` instead.
`Object`	`uid`	A unique identifier for the window.
`long`	`windowStartTimeMs`	The window's start time in milliseconds since the Unix epoch, or `C.TIME_UNSET` if unknown or not applicable.

Constructor Summary

Constructors
Constructor Description

Window()
Creates window.

Constructors
Constructor	Description
`Window()`	Creates window.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`long`	`getCurrentUnixTimeMs()`	Returns the current time in milliseconds since the Unix epoch.
`long`	`getDefaultPositionMs()`	Returns the default position relative to the start of the window at which to begin playback, in milliseconds.
`long`	`getDefaultPositionUs()`	Returns the default position relative to the start of the window at which to begin playback, in microseconds.
`long`	`getDurationMs()`	Returns the duration of the window in milliseconds, or `C.TIME_UNSET` if unknown.
`long`	`getDurationUs()`	Returns the duration of this window in microseconds, or `C.TIME_UNSET` if unknown.
`long`	`getPositionInFirstPeriodMs()`	Returns the position of the start of this window relative to the start of the first period belonging to it, in milliseconds.
`long`	`getPositionInFirstPeriodUs()`	Returns the position of the start of this window relative to the start of the first period belonging to it, in microseconds.
`int`	`hashCode()`
`boolean`	`isLive()`	Returns whether this is a live stream.
`Timeline.Window`	`set(Object uid, MediaItem mediaItem, Object manifest, long presentationStartTimeMs, long windowStartTimeMs, long elapsedRealtimeEpochOffsetMs, boolean isSeekable, boolean isDynamic, MediaItem.LiveConfiguration liveConfiguration, long defaultPositionUs, long durationUs, int firstPeriodIndex, int lastPeriodIndex, long positionInFirstPeriodUs)`	Sets the data held by this window.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - SINGLE_WINDOW_UID
```
public static final Object SINGLE_WINDOW_UID
```
    A uid for a window that must be used for single-window Timelines.
  - uid
```
public Object uid
```
    A unique identifier for the window. Single-window Timelines must use SINGLE_WINDOW_UID.
  - tag
```
@Deprecated
@Nullable
public Object tag
```
    Deprecated.
    Use mediaItem instead.
  - mediaItem
```
public MediaItem mediaItem
```
    The MediaItem associated to the window. Not necessarily unique.
  - manifest
```
@Nullable
public Object manifest
```
    The manifest of the window. May be null.
  - presentationStartTimeMs
```
public long presentationStartTimeMs
```
    The start time of the presentation to which this window belongs in milliseconds since the Unix epoch, or C.TIME_UNSET if unknown or not applicable. For informational purposes only.
  - windowStartTimeMs
```
public long windowStartTimeMs
```
    The window's start time in milliseconds since the Unix epoch, or C.TIME_UNSET if unknown or not applicable.
  - elapsedRealtimeEpochOffsetMs
```
public long elapsedRealtimeEpochOffsetMs
```
    The offset between SystemClock.elapsedRealtime() and the time since the Unix epoch according to the clock of the media origin server, or C.TIME_UNSET if unknown or not applicable.
    Note that the current Unix time can be retrieved using getCurrentUnixTimeMs() and is calculated as SystemClock.elapsedRealtime() + elapsedRealtimeEpochOffsetMs.
  - isSeekable
```
public boolean isSeekable
```
    Whether it's possible to seek within this window.
  - isDynamic
```
public boolean isDynamic
```
    Whether this window may change when the timeline is updated.
  - isLive
```
@Deprecated
public boolean isLive
```
    Deprecated.
    Use isLive() instead.
  - liveConfiguration
```
@Nullable
public MediaItem.LiveConfiguration liveConfiguration
```
    The MediaItem.LiveConfiguration that is used or null if isLive() returns false.
  - isPlaceholder
```
public boolean isPlaceholder
```
    Whether this window contains placeholder information because the real information has yet to be loaded.
  - firstPeriodIndex
```
public int firstPeriodIndex
```
    The index of the first period that belongs to this window.
  - lastPeriodIndex
```
public int lastPeriodIndex
```
    The index of the last period that belongs to this window.
  - defaultPositionUs
```
public long defaultPositionUs
```
    The default position relative to the start of the window at which to begin playback, in microseconds. May be C.TIME_UNSET if and only if the window was populated with a non-zero default position projection, and if the specified projection cannot be performed whilst remaining within the bounds of the window.
  - durationUs
```
public long durationUs
```
    The duration of this window in microseconds, or C.TIME_UNSET if unknown.
  - positionInFirstPeriodUs
```
public long positionInFirstPeriodUs
```
    The position of the start of this window relative to the start of the first period belonging to it, in microseconds.
- Constructor Detail
  - Window
```
public Window()
```
    Creates window.
- Method Detail
  - set
```
public Timeline.Window set(Object uid,
                           @Nullable
                           MediaItem mediaItem,
                           @Nullable
                           Object manifest,
                           long presentationStartTimeMs,
                           long windowStartTimeMs,
                           long elapsedRealtimeEpochOffsetMs,
                           boolean isSeekable,
                           boolean isDynamic,
                           @Nullable
                           MediaItem.LiveConfiguration liveConfiguration,
                           long defaultPositionUs,
                           long durationUs,
                           int firstPeriodIndex,
                           int lastPeriodIndex,
                           long positionInFirstPeriodUs)
```
    Sets the data held by this window.
  - getDefaultPositionMs
```
public long getDefaultPositionMs()
```
    Returns the default position relative to the start of the window at which to begin playback, in milliseconds. May be C.TIME_UNSET if and only if the window was populated with a non-zero default position projection, and if the specified projection cannot be performed whilst remaining within the bounds of the window.
  - getDefaultPositionUs
```
public long getDefaultPositionUs()
```
    Returns the default position relative to the start of the window at which to begin playback, in microseconds. May be C.TIME_UNSET if and only if the window was populated with a non-zero default position projection, and if the specified projection cannot be performed whilst remaining within the bounds of the window.
  - getDurationMs
```
public long getDurationMs()
```
    Returns the duration of the window in milliseconds, or C.TIME_UNSET if unknown.
  - getDurationUs
```
public long getDurationUs()
```
    Returns the duration of this window in microseconds, or C.TIME_UNSET if unknown.
  - getPositionInFirstPeriodMs
```
public long getPositionInFirstPeriodMs()
```
    Returns the position of the start of this window relative to the start of the first period belonging to it, in milliseconds.
  - getPositionInFirstPeriodUs
```
public long getPositionInFirstPeriodUs()
```
    Returns the position of the start of this window relative to the start of the first period belonging to it, in microseconds.
  - getCurrentUnixTimeMs
```
public long getCurrentUnixTimeMs()
```
    Returns the current time in milliseconds since the Unix epoch.
    This method applies known corrections made available by the media such that this time corresponds to the clock of the media origin server.
  - isLive
```
public boolean isLive()
```
    Returns whether this is a live stream.
  - equals
```
public boolean equals(@Nullable
                      Object obj)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object

Class Timeline.Window

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

SINGLE_WINDOW_UID

uid

tag

mediaItem

manifest

presentationStartTimeMs

windowStartTimeMs

elapsedRealtimeEpochOffsetMs

isSeekable

isDynamic

isLive

liveConfiguration

isPlaceholder

firstPeriodIndex

lastPeriodIndex

defaultPositionUs

durationUs

positionInFirstPeriodUs

Constructor Detail

Window

Method Detail

set

getDefaultPositionMs

getDefaultPositionUs

getDurationMs

getDurationUs

getPositionInFirstPeriodMs

getPositionInFirstPeriodUs

getCurrentUnixTimeMs

isLive

equals

hashCode