# ClippingMediaSource

Artifact: [androidx.media3:media3-exoplayer](https://developer.android.com/jetpack/androidx/releases/media3) [View Source](https://cs.android.com/search?q=file:androidx/media3/exoplayer/source/ClippingMediaSource.java+class:androidx.media3.exoplayer.source.ClippingMediaSource)

*** ** * ** ***


```
@UnstableApi
class ClippingMediaSource : WrappingMediaSource
```

<br />

|---|---|---|---|---|
| [kotlin.Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html) |||||
| ↳ | [androidx.media3.exoplayer.source.BaseMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource) ||||
|   | ↳ | [androidx.media3.exoplayer.source.CompositeMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource) |||
|   |   | ↳ | [androidx.media3.exoplayer.source.WrappingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource) ||
|   |   |   | ↳ | [androidx.media3.exoplayer.source.ClippingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource) |

*** ** * ** ***

`https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource` that wraps a source and clips its timeline based on specified start/end positions. The wrapped source must consist of a single period.

## Summary

| ### Nested types |
|---|
| `class https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.Builder` A builder for `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource`. |
| `class https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.IllegalClippingException : https://developer.android.com/reference/java/io/IOException.html` Thrown when a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource` cannot clip its wrapped source. |
| `@https://developer.android.com/reference/java/lang/annotation/Documented.html @https://developer.android.com/reference/java/lang/annotation/Retention.html(value = https://developer.android.com/reference/java/lang/annotation/RetentionPolicy.html#SOURCE) @https://developer.android.com/reference/java/lang/annotation/Target.html(value = https://developer.android.com/reference/java/lang/annotation/ElementType.html#TYPE_USE) @https://developer.android.com/reference/kotlin/androidx/annotation/IntDef(value = ) annotation https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.IllegalClippingException.Reason` The reason clipping failed. |

| ### Public constructors |
|---|
| `[ClippingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#ClippingMediaSource(androidx.media3.exoplayer.source.MediaSource,long))(mediaSource: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource!, durationUs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html)` **This function is deprecated.** Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.Builder` instead. <br /> |
| `[ClippingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#ClippingMediaSource(androidx.media3.exoplayer.source.MediaSource,long,long))( mediaSource: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource!, startPositionUs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, endPositionUs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html )` **This function is deprecated.** Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.Builder` instead. <br /> |
| `[ClippingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#ClippingMediaSource(androidx.media3.exoplayer.source.MediaSource,long,long,boolean,boolean,boolean))( mediaSource: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource!, startPositionUs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, endPositionUs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, enableInitialDiscontinuity: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html, allowDynamicClippingUpdates: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html, relativeToDefaultPosition: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html )` **This function is deprecated.** Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.Builder` instead. <br /> |

| ### Public functions |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#canUpdateMediaItem(androidx.media3.common.MediaItem)(mediaItem: https://developer.android.com/reference/kotlin/androidx/media3/common/MediaItem!)` Returns whether the for this source can be updated with the provided item. |
| `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod!` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#createPeriod(androidx.media3.exoplayer.source.MediaSource.MediaPeriodId,androidx.media3.exoplayer.upstream.Allocator,long)( id: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId!, allocator: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/upstream/Allocator!, startPositionUs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html )` Creates the requested `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#maybeThrowSourceInfoRefreshError()()` Throws any pending error encountered while loading or refreshing source information. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#releasePeriod(androidx.media3.exoplayer.source.MediaPeriod)(mediaPeriod: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod!)` Releases a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#updateMediaItem(androidx.media3.common.MediaItem)(mediaItem: https://developer.android.com/reference/kotlin/androidx/media3/common/MediaItem!)` Updates the for this source. |

| ### Protected functions |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#onChildSourceInfoRefreshed(androidx.media3.common.Timeline)(newTimeline: https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline!)` Called when the child source info has been refreshed. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#releaseSourceInternal()()` Releases the source, see `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#releaseSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller)`. |

| ### Inherited functions |
|---|
| From [androidx.media3.exoplayer.source.BaseMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource) |---|---| | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#addDrmEventListener(android.os.Handler,androidx.media3.exoplayer.drm.DrmSessionEventListener)( handler: https://developer.android.com/reference/android/os/Handler.html!, eventListener: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener! )` Adds a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener` to the list of listeners which are notified of DRM events for this media source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#addEventListener(android.os.Handler,androidx.media3.exoplayer.source.MediaSourceEventListener)( handler: https://developer.android.com/reference/android/os/Handler.html!, eventListener: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener! )` Adds a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener` to the list of listeners which are notified of media source events. | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener.EventDispatcher!` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createDrmEventDispatcher(androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)(mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId?)` Returns a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener.EventDispatcher` which dispatches all events to the registered listeners with the specified `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId` | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener.EventDispatcher!` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createDrmEventDispatcher(int,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( windowIndex: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId? )` Returns a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener.EventDispatcher` which dispatches all events to the registered listeners with the specified window index and `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId`. | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener.EventDispatcher!` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createEventDispatcher(androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)(mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId?)` Returns a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener.EventDispatcher` which dispatches all events to the registered listeners with the specified `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId`. | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener.EventDispatcher!` | `[createEventDispatcher](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createEventDispatcher(androidx.media3.exoplayer.source.MediaSource.MediaPeriodId,long))( mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId!, mediaTimeOffsetMs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html )` **This function is deprecated.** Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createEventDispatcher(androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)` instead. <br /> | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener.EventDispatcher!` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createEventDispatcher(int,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( windowIndex: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId? )` Returns a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener.EventDispatcher` which dispatches all events to the registered listeners with the specified window index and `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId`. | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener.EventDispatcher!` | `[createEventDispatcher](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createEventDispatcher(int,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId,long))( windowIndex: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId?, mediaTimeOffsetMs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html )` **This function is deprecated.** Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#createEventDispatcher(int,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)` instead. <br /> | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#disable(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller)(caller: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaSourceCaller!)` Disables the source for the creation of `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#enable(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller)(caller: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaSourceCaller!)` Enables the source for the creation of `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#isEnabled()()` Returns whether the source is enabled. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#prepareSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller,androidx.media3.exoplayer.analytics.PlayerId,androidx.media3.exoplayer.upstream.BandwidthMeter)( caller: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaSourceCaller!, playerId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/analytics/PlayerId!, bandwidthMeter: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/upstream/BandwidthMeter! )` Registers a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaSourceCaller`. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#prepareSourceCalled()()` Returns whether the source has `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#prepareSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller,androidx.media3.exoplayer.analytics.PlayerId,androidx.media3.exoplayer.upstream.BandwidthMeter)` called. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#refreshSourceInfo(androidx.media3.common.Timeline)(timeline: https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline!)` Updates timeline and manifest and notifies all listeners of the update. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#releaseSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller)(caller: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaSourceCaller!)` Unregisters a caller, and disables and releases the source if no longer required. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#removeDrmEventListener(androidx.media3.exoplayer.drm.DrmSessionEventListener)(eventListener: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener!)` Removes a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/drm/DrmSessionEventListener` from the list of listeners which are notified of DRM events for this media source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#removeEventListener(androidx.media3.exoplayer.source.MediaSourceEventListener)(eventListener: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener!)` Removes a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSourceEventListener` from the list of listeners which are notified of media source events. | |
| From [androidx.media3.exoplayer.source.CompositeMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource) |---|---| | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#disableChildSource(T)(@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull id: T!)` Disables a child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/annotation/CallSuper https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#disableInternal()()` Disables the source, see `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#disable(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller)`. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#enableChildSource(T)(@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull id: T!)` Enables a child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/annotation/CallSuper https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#enableInternal()()` Enables the source, see `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#enable(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller)`. | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId?` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#getMediaPeriodIdForChildMediaPeriodId(T,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( @https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull childSourceId: T!, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId! )` Returns the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId` in the composite source corresponding to the specified `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId` in a child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#getMediaTimeForChildMediaTime(T,long,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( @https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull childSourceId: T!, mediaTimeMs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId? )` Returns the media time in the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod` of the composite source corresponding to the specified media time in the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod` of the child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#getWindowIndexForChildWindowIndex(T,int)( @https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull childSourceId: T!, windowIndex: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html )` Returns the window index in the composite source corresponding to the specified window index in a child source. | | `abstract https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#onChildSourceInfoRefreshed(T,androidx.media3.exoplayer.source.MediaSource,androidx.media3.common.Timeline)( @https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull childSourceId: T!, mediaSource: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource!, newTimeline: https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline! )` Called when the source info of a child source has been refreshed. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#prepareChildSource(T,androidx.media3.exoplayer.source.MediaSource)(@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull id: T!, mediaSource: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource!)` Prepares a child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/CompositeMediaSource#releaseChildSource(T)(@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnknownNull id: T!)` Releases a child source. | |
| From [androidx.media3.exoplayer.source.MediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource) |---|---| | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `@https://developer.android.com/reference/kotlin/androidx/media3/common/util/UnstableApi [prepareSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#prepareSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller,androidx.media3.datasource.TransferListener,androidx.media3.exoplayer.analytics.PlayerId))( caller: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaSourceCaller!, mediaTransferListener: https://developer.android.com/reference/kotlin/androidx/media3/datasource/TransferListener?, playerId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/analytics/PlayerId! )` **This function is deprecated.** Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#prepareSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller,androidx.media3.exoplayer.analytics.PlayerId,androidx.media3.exoplayer.upstream.BandwidthMeter)` instead. <br /> | |
| From [androidx.media3.exoplayer.source.WrappingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource) |---|---| | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#disableChildSource()()` Disables the child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#enableChildSource()()` Enables the child source. | | `https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline?` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getInitialTimeline()()` Returns the initial placeholder timeline that is returned immediately when the real timeline is not yet known, or null to let the player create an initial timeline. | | `https://developer.android.com/reference/kotlin/androidx/media3/common/MediaItem!` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getMediaItem()()` Returns the whose media is provided by the source. | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId?` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getMediaPeriodIdForChildMediaPeriodId(androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId! )` Returns the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId` in the wrapping source corresponding to the specified `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId` in a child source. | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId?` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getMediaPeriodIdForChildMediaPeriodId(java.lang.Void,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( childSourceId: https://developer.android.com/reference/java/lang/Void.html!, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId! )` Returns the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId` in the composite source corresponding to the specified `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId` in a child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getMediaTimeForChildMediaTime(long,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( mediaTimeMs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId? )` Returns the media time in the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod` of the wrapping source corresponding to the specified media time in the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod` of the child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getMediaTimeForChildMediaTime(java.lang.Void,long,androidx.media3.exoplayer.source.MediaSource.MediaPeriodId)( childSourceId: https://developer.android.com/reference/java/lang/Void.html!, mediaTimeMs: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, mediaPeriodId: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource.MediaPeriodId? )` Returns the media time in the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod` of the composite source corresponding to the specified media time in the `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod` of the child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getWindowIndexForChildWindowIndex(int)(windowIndex: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Returns the window index in the wrapping source corresponding to the specified window index in a child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#getWindowIndexForChildWindowIndex(java.lang.Void,int)(childSourceId: https://developer.android.com/reference/java/lang/Void.html!, windowIndex: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html)` Returns the window index in the composite source corresponding to the specified window index in a child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#isSingleWindow()()` Returns true if the media source is guaranteed to never have zero or more than one window. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#onChildSourceInfoRefreshed(java.lang.Void,androidx.media3.exoplayer.source.MediaSource,androidx.media3.common.Timeline)( childSourceId: https://developer.android.com/reference/java/lang/Void.html!, mediaSource: https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource!, newTimeline: https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline! )` Called when the source info of a child source has been refreshed. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#prepareChildSource()()` Prepares the wrapped child source. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#prepareSourceInternal()()` Starts source preparation and enables the source, see `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#prepareSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller,androidx.media3.exoplayer.analytics.PlayerId,androidx.media3.exoplayer.upstream.BandwidthMeter)`. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#prepareSourceInternal(androidx.media3.datasource.TransferListener)(mediaTransferListener: https://developer.android.com/reference/kotlin/androidx/media3/datasource/TransferListener?)` Starts source preparation and enables the source, see `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#prepareSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller,androidx.media3.exoplayer.analytics.PlayerId,androidx.media3.exoplayer.upstream.BandwidthMeter)`. | | `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#releaseChildSource()()` Releases the child source. | |

| ### Inherited properties |
|---|
| From [androidx.media3.exoplayer.source.BaseMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource) |---|---| | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/upstream/BandwidthMeter?` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#bandwidthMeter()` | | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/analytics/PlayerId?` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#playerId()` | |
| From [androidx.media3.exoplayer.source.WrappingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource) |---|---| | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource!` | `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/WrappingMediaSource#mediaSource()` The wrapped child `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource`. | |

## Public constructors

### ClippingMediaSource

```
[ClippingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#ClippingMediaSource(androidx.media3.exoplayer.source.MediaSource,long))(mediaSource: MediaSource!, durationUs: Long)
```

> [!CAUTION]
> **This function is deprecated.**   
>
> Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.Builder` instead.

### ClippingMediaSource

```
[ClippingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#ClippingMediaSource(androidx.media3.exoplayer.source.MediaSource,long,long))(
    mediaSource: MediaSource!,
    startPositionUs: Long,
    endPositionUs: Long
)
```

> [!CAUTION]
> **This function is deprecated.**   
>
> Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.Builder` instead.

### ClippingMediaSource

```
[ClippingMediaSource](https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource#ClippingMediaSource(androidx.media3.exoplayer.source.MediaSource,long,long,boolean,boolean,boolean))(
    mediaSource: MediaSource!,
    startPositionUs: Long,
    endPositionUs: Long,
    enableInitialDiscontinuity: Boolean,
    allowDynamicClippingUpdates: Boolean,
    relativeToDefaultPosition: Boolean
)
```

> [!CAUTION]
> **This function is deprecated.**   
>
> Use `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ClippingMediaSource.Builder` instead.

## Public functions

### canUpdateMediaItem

```
fun canUpdateMediaItem(mediaItem: MediaItem!): Boolean
```

Returns whether the for this source can be updated with the provided item.

Should not be called directly from application code.

This method must be called on the application thread.

This method can be overridden to change whether the `https://developer.android.com/reference/kotlin/androidx/media3/common/MediaItem` of the child source can be updated.

### createPeriod

```
fun createPeriod(
    id: MediaSource.MediaPeriodId!,
    allocator: Allocator!,
    startPositionUs: Long
): MediaPeriod!
```

Creates the requested `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`.

This method typically forwards to the wrapped media source and optionally wraps the returned `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`.

| See also |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#createPeriod(androidx.media3.exoplayer.source.MediaSource.MediaPeriodId,androidx.media3.exoplayer.upstream.Allocator,long)` |   |

### maybeThrowSourceInfoRefreshError

```
fun maybeThrowSourceInfoRefreshError(): Unit
```

Throws any pending error encountered while loading or refreshing source information.

Should not be called directly from application code.

This method must be called on the playback thread and only after `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#prepareSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller,androidx.media3.exoplayer.analytics.PlayerId,androidx.media3.exoplayer.upstream.BandwidthMeter)`.

| Throws |
|---|---|
| `https://developer.android.com/reference/java/io/IOException.html` |   |

### releasePeriod

```
fun releasePeriod(mediaPeriod: MediaPeriod!): Unit
```

Releases a `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`.

This method typically forwards to the wrapped media source and optionally unwraps the provided `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaPeriod`.

| See also |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#releasePeriod(androidx.media3.exoplayer.source.MediaPeriod)` |   |

### updateMediaItem

```
fun updateMediaItem(mediaItem: MediaItem!): Unit
```

Updates the for this source.

Should not be called directly from application code.

This method must be called on the playback thread and only if #canUpdateMediaItem returns true} for the new .

This method can be overridden to change how the `https://developer.android.com/reference/kotlin/androidx/media3/common/MediaItem` of the child source is updated.

## Protected functions

### onChildSourceInfoRefreshed

```
protected fun onChildSourceInfoRefreshed(newTimeline: Timeline!): Unit
```

Called when the child source info has been refreshed.

This `https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline` can be amended if needed, for example using `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/ForwardingTimeline`. The `https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline` for the wrapping source needs to be published with `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#refreshSourceInfo(androidx.media3.common.Timeline)`.

| Parameters |
|---|---|
| `newTimeline: https://developer.android.com/reference/kotlin/androidx/media3/common/Timeline!` | The timeline of the child source. |

### releaseSourceInternal

```
protected fun releaseSourceInternal(): Unit
```

Releases the source, see `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/MediaSource#releaseSource(androidx.media3.exoplayer.source.MediaSource.MediaSourceCaller)`. This method is called exactly once after each call to `https://developer.android.com/reference/kotlin/androidx/media3/exoplayer/source/BaseMediaSource#prepareSourceInternal(androidx.media3.datasource.TransferListener)`.

This method is called on the playback thread.