MediaPeriodId (ExoPlayer library)

java.lang.Object
- com.google.android.exoplayer2.source.MediaPeriodId

Direct Known Subclasses:

MediaSource.MediaPeriodId
```
public class MediaPeriodId
extends Object
```
Identifies a specific playback of a Timeline.Period.
A Timeline.Period can be played multiple times, for example if it is repeated. Each instances of this class identifies a specific playback of a Timeline.Period.
In ExoPlayer's implementation, MediaPeriodId identifies a MediaPeriod.

Field Summary

Fields
Modifier and Type	Field	Description
`int`	`adGroupIndex`	If the media period is in an ad group, the index of the ad group in the period.
`int`	`adIndexInAdGroup`	If the media period is in an ad group, the index of the ad in its ad group in the period.
`int`	`nextAdGroupIndex`	The index of the next ad group to which the media period's content is clipped, or `C.INDEX_UNSET` if there is no following ad group or if this media period is an ad.
`Object`	`periodUid`	The unique id of the timeline period.
`long`	`windowSequenceNumber`	The sequence number of the window in the buffered sequence of windows this media period is part of.

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`MediaPeriodId(MediaPeriodId mediaPeriodId)`	Copy constructor for inheritance.
	`MediaPeriodId(Object periodUid)`	Creates a media period identifier for a period which is not part of a buffered sequence of windows.
	`MediaPeriodId(Object periodUid, int adGroupIndex, int adIndexInAdGroup, long windowSequenceNumber)`	Creates a media period identifier that identifies an ad within an ad group at the specified timeline period.
	`MediaPeriodId(Object periodUid, long windowSequenceNumber)`	Creates a media period identifier for the specified period in the timeline.
	`MediaPeriodId(Object periodUid, long windowSequenceNumber, int nextAdGroupIndex)`	Creates a media period identifier for the specified clipped period in the timeline.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`MediaPeriodId`	`copyWithPeriodUid(Object newPeriodUid)`	Returns a copy of this period identifier but with `newPeriodUid` as its period uid.
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`boolean`	`isAd()`	Returns whether this period identifier identifies an ad in an ad group in a period.

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

- Field Detail
  - periodUid
```
public final Object periodUid
```
    The unique id of the timeline period.
  - adGroupIndex
```
public final int adGroupIndex
```
    If the media period is in an ad group, the index of the ad group in the period. C.INDEX_UNSET otherwise.
  - adIndexInAdGroup
```
public final int adIndexInAdGroup
```
    If the media period is in an ad group, the index of the ad in its ad group in the period. C.INDEX_UNSET otherwise.
  - windowSequenceNumber
```
public final long windowSequenceNumber
```
    The sequence number of the window in the buffered sequence of windows this media period is part of. C.INDEX_UNSET if the media period id is not part of a buffered sequence of windows.
  - nextAdGroupIndex
```
public final int nextAdGroupIndex
```
    The index of the next ad group to which the media period's content is clipped, or C.INDEX_UNSET if there is no following ad group or if this media period is an ad.
- Constructor Detail
  - MediaPeriodId
```
public MediaPeriodId(Object periodUid)
```
    Creates a media period identifier for a period which is not part of a buffered sequence of windows.
    
    Parameters:
    
    periodUid - The unique id of the timeline period.
  - MediaPeriodId
```
public MediaPeriodId(Object periodUid,
                     long windowSequenceNumber)
```
    Creates a media period identifier for the specified period in the timeline.
    
    Parameters:
    
    periodUid - The unique id of the timeline period.
    
    windowSequenceNumber - The sequence number of the window in the buffered sequence of windows this media period is part of.
  - MediaPeriodId
```
public MediaPeriodId(Object periodUid,
                     long windowSequenceNumber,
                     int nextAdGroupIndex)
```
    Creates a media period identifier for the specified clipped period in the timeline.
    
    Parameters:
    
    periodUid - The unique id of the timeline period.
    
    windowSequenceNumber - The sequence number of the window in the buffered sequence of windows this media period is part of.
    
    nextAdGroupIndex - The index of the next ad group to which the media period's content is clipped.
  - MediaPeriodId
```
public MediaPeriodId(Object periodUid,
                     int adGroupIndex,
                     int adIndexInAdGroup,
                     long windowSequenceNumber)
```
    Creates a media period identifier that identifies an ad within an ad group at the specified timeline period.
    
    Parameters:
    
    periodUid - The unique id of the timeline period that contains the ad group.
    
    adGroupIndex - The index of the ad group.
    
    adIndexInAdGroup - The index of the ad in the ad group.
    
    windowSequenceNumber - The sequence number of the window in the buffered sequence of windows this media period is part of.
  - MediaPeriodId
```
protected MediaPeriodId(MediaPeriodId mediaPeriodId)
```
    Copy constructor for inheritance.
- Method Detail
  - copyWithPeriodUid
```
public MediaPeriodId copyWithPeriodUid(Object newPeriodUid)
```
    Returns a copy of this period identifier but with newPeriodUid as its period uid.
  - isAd
```
public boolean isAd()
```
    Returns whether this period identifier identifies an ad in an ad group in a period.
  - equals
```
public boolean equals(@Nullable
                      Object obj)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object

Class MediaPeriodId

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

periodUid

adGroupIndex

adIndexInAdGroup

windowSequenceNumber

nextAdGroupIndex

Constructor Detail

MediaPeriodId

MediaPeriodId

MediaPeriodId

MediaPeriodId

MediaPeriodId

Method Detail

copyWithPeriodUid

isAd

equals

hashCode