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@UnstableApi
class DashMediaSource : BaseMediaSource

kotlin.Any
   ↳ androidx.media3.exoplayer.source.BaseMediaSource
     ↳ androidx.media3.exoplayer.dash.DashMediaSource

A DASH MediaSource.

Summary

Nested types

Factory for DashMediaSources.

Constants
const Long

The default target offset for live streams that is used if no value is defined in the MediaItem or the manifest.
const String!
DEFAULT_MEDIA_ID = "DashMediaSource"

The media id used by media items of dash media sources without a manifest URI.
const Long

The minimum default start position for live streams, in microseconds relative to the start of the live window.

Public functions
Boolean

Returns whether the MediaItem for this source can be updated with the provided item.
MediaPeriod!
createPeriod(
    id: MediaSource.MediaPeriodId!,
    allocator: Allocator!,
    startPositionUs: Long
)

Returns a new MediaPeriod identified by periodId.
Unit

Throws any pending error encountered while loading or refreshing source information.
Unit
releasePeriod(mediaPeriod: MediaPeriod!)

Releases the period.
Unit
replaceManifestUri(manifestUri: Uri!)

Manually replaces the manifest Uri.
synchronized Unit

Updates the MediaItem for this source.

Protected functions
Unit
prepareSourceInternal(mediaTransferListener: TransferListener?)

Starts source preparation and enables the source, see prepareSource.
Unit

Releases the source, see releaseSource.

Public properties
MediaItem!
@GuardedBy(value = "this")
mediaItem

Inherited functions
From androidx.media3.exoplayer.source.BaseMediaSource
Unit
@UnstableApi
addDrmEventListener(
    handler: Handler!,
    eventListener: DrmSessionEventListener!
)

Adds a DrmSessionEventListener to the list of listeners which are notified of DRM events for this media source.
Unit
@UnstableApi
addEventListener(
    handler: Handler!,
    eventListener: MediaSourceEventListener!
)

Adds a MediaSourceEventListener to the list of listeners which are notified of media source events.
DrmSessionEventListener.EventDispatcher!

Returns a DrmSessionEventListener.EventDispatcher which dispatches all events to the registered listeners with the specified MediaPeriodId
DrmSessionEventListener.EventDispatcher!
createDrmEventDispatcher(
    windowIndex: Int,
    mediaPeriodId: MediaSource.MediaPeriodId?
)

Returns a DrmSessionEventListener.EventDispatcher which dispatches all events to the registered listeners with the specified window index and MediaPeriodId.
MediaSourceEventListener.EventDispatcher!

Returns a MediaSourceEventListener.EventDispatcher which dispatches all events to the registered listeners with the specified MediaPeriodId.
MediaSourceEventListener.EventDispatcher!
createEventDispatcher(
    mediaPeriodId: MediaSource.MediaPeriodId!,
    mediaTimeOffsetMs: Long
)

This function is deprecated.

Use createEventDispatcher instead.
MediaSourceEventListener.EventDispatcher!
createEventDispatcher(
    windowIndex: Int,
    mediaPeriodId: MediaSource.MediaPeriodId?
)

Returns a MediaSourceEventListener.EventDispatcher which dispatches all events to the registered listeners with the specified window index and MediaPeriodId.
MediaSourceEventListener.EventDispatcher!
createEventDispatcher(
    windowIndex: Int,
    mediaPeriodId: MediaSource.MediaPeriodId?,
    mediaTimeOffsetMs: Long
)

This function is deprecated.

Use createEventDispatcher instead.
Unit

Disables the source for the creation of MediaPeriods.
Unit

Disables the source, see disable.
Unit

Enables the source for the creation of MediaPeriods.
Unit

Enables the source, see enable.
Boolean

Returns whether the source is enabled.
Unit
@UnstableApi
prepareSource(
    caller: MediaSource.MediaSourceCaller!,
    playerId: PlayerId!,
    bandwidthMeter: BandwidthMeter!
)

Registers a MediaSourceCaller.
Boolean

Returns whether the source has prepareSource called.
Unit

Updates timeline and manifest and notifies all listeners of the update.
Unit

Unregisters a caller, and disables and releases the source if no longer required.
Unit

Removes a DrmSessionEventListener from the list of listeners which are notified of DRM events for this media source.
Unit

Removes a MediaSourceEventListener from the list of listeners which are notified of media source events.
From androidx.media3.exoplayer.source.MediaSource
Timeline?

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.
Boolean

Returns true if the media source is guaranteed to never have zero or more than one window.
Unit
@UnstableApi
prepareSource(
    caller: MediaSource.MediaSourceCaller!,
    mediaTransferListener: TransferListener?,
    playerId: PlayerId!
)

This function is deprecated.

Use prepareSource instead.

Inherited properties
From androidx.media3.exoplayer.source.BaseMediaSource
BandwidthMeter?
PlayerId?

Constants

DEFAULT_FALLBACK_TARGET_LIVE_OFFSET_MS

const val DEFAULT_FALLBACK_TARGET_LIVE_OFFSET_MS = 30000: Long

The default target offset for live streams that is used if no value is defined in the MediaItem or the manifest.

DEFAULT_MEDIA_ID

const val DEFAULT_MEDIA_ID = "DashMediaSource": String!

The media id used by media items of dash media sources without a manifest URI.

MIN_LIVE_DEFAULT_START_POSITION_US

const val MIN_LIVE_DEFAULT_START_POSITION_US = 5000000: Long

The minimum default start position for live streams, in microseconds relative to the start of the live window.

Public functions

canUpdateMediaItem

fun canUpdateMediaItem(mediaItem: MediaItem!): Boolean

Returns whether the MediaItem 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.

Parameters
mediaItem: MediaItem!

The new MediaItem.
Returns
Boolean

Whether the source can be updated using this item.

createPeriod

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

Returns a new MediaPeriod identified by periodId.

Should not be called directly from application code.

This method must be called on the playback thread and only if the source is enabled.

Parameters
id: MediaSource.MediaPeriodId!

The identifier of the period.
allocator: Allocator!

An Allocator from which to obtain media buffer allocations.
startPositionUs: Long

The expected start position, in microseconds.
Returns
MediaPeriod!

A new MediaPeriod.

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 prepareSource.

Throws
java.io.IOException

releasePeriod

fun releasePeriod(mediaPeriod: MediaPeriod!): Unit

Releases the period.

Should not be called directly from application code.

This method must be called on the playback thread.

Parameters
mediaPeriod: MediaPeriod!

The period to release.

replaceManifestUri

fun replaceManifestUri(manifestUri: Uri!): Unit

Manually replaces the manifest Uri.

Parameters
manifestUri: Uri!

The replacement manifest Uri.

updateMediaItem

synchronized fun updateMediaItem(mediaItem: MediaItem!): Unit

Updates the MediaItem 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 MediaItem.

Parameters
mediaItem: MediaItem!

The new MediaItem.

Protected functions

prepareSourceInternal

protected fun prepareSourceInternal(mediaTransferListener: TransferListener?): Unit

Starts source preparation and enables the source, see prepareSource. This method is called at most once until the next call to releaseSourceInternal.

This method is called on the playback thread.

Parameters
mediaTransferListener: TransferListener?

The transfer listener which should be informed of any media data transfers. May be null if no listener is available. Note that this listener should usually be only informed of transfers related to the media loads and not of auxiliary loads for manifests and other data.

releaseSourceInternal

protected fun releaseSourceInternal(): Unit

Releases the source, see releaseSource. This method is called exactly once after each call to prepareSourceInternal.

This method is called on the playback thread.

Public properties

mediaItem

@GuardedBy(value = "this")
val mediaItem: MediaItem!
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