Chunk

Artifact: androidx.media3:media3-exoplayer

Kotlin |Java

@UnstableApi
abstract class Chunk : Loader.Loadable

Known direct subclasses

DataChunk, InitializationChunk, MediaChunk

`DataChunk`	A base class for `Chunk` implementations where the data should be loaded into a `byte[]` before being consumed.
`InitializationChunk`	A `Chunk` that uses an `Extractor` to decode initialization data for single track.
`MediaChunk`	An abstract base class for `Chunk`s that contain media samples.

Known indirect subclasses

BaseMediaChunk, ContainerMediaChunk, FakeMediaChunk, SingleSampleMediaChunk

`BaseMediaChunk`	A base implementation of `MediaChunk` that outputs to a `BaseMediaChunkOutput`.
`ContainerMediaChunk`	A `BaseMediaChunk` that uses an `Extractor` to decode sample data.
`FakeMediaChunk`	Fake `MediaChunk`.
`SingleSampleMediaChunk`	This class is deprecated. The only use for this class is subtitle playback, but it is only compatible with legacy subtitle decoding, which is not supported by default.

An abstract base class for Loadable implementations that load chunks of data required for the playback of streams.

Summary

Public constructors
`Chunk( dataSource: DataSource!, dataSpec: DataSpec!, @C.DataType type: Int, trackFormat: Format!, @C.SelectionReason trackSelectionReason: Int, trackSelectionData: Any?, startTimeUs: Long, endTimeUs: Long )`

Public functions
`Long`	`bytesLoaded()` Returns the number of bytes that have been loaded.
`Long`	`getDurationUs()` Returns the duration of the chunk in microseconds.
`(Mutable)Map<String!, (Mutable)List<String!>!>!`	`getResponseHeaders()` Returns the response headers associated with the last `open` call.
`Uri!`	`getUri()` Returns the `Uri` associated with the last `open` call.

Public properties
`DataSpec!`	`dataSpec` The `DataSpec` that defines the data to be loaded.
`Long`	`endTimeUs` The end time of the media contained by the chunk, or `TIME_UNSET` if the data being loaded does not contain media samples.
`Long`	`loadTaskId` Identifies the load task for this loadable.
`Long`	`startTimeUs` The start time of the media contained by the chunk, or `TIME_UNSET` if the data being loaded does not contain media samples.
`Format!`	`trackFormat` The format of the track to which this chunk belongs.
`Any?`	`trackSelectionData` Optional data associated with the selection of the track to which this chunk belongs.
`Int`	`@C.SelectionReason trackSelectionReason` One of the `selection reasons` if the chunk belongs to a track.
`Int`	`@C.DataType type` The `data type` of the chunk.

Protected properties
`StatsDataSource!`	`dataSource`

Inherited functions

From androidx.media3.exoplayer.upstream.Loader.Loadable

`abstract Unit`	`cancelLoad()` Cancels the load.
`abstract Unit`	`load()` Performs the load, returning on completion or cancellation.

Public constructors

Chunk

Chunk(
    dataSource: DataSource!,
    dataSpec: DataSpec!,
    @C.DataType type: Int,
    trackFormat: Format!,
    @C.SelectionReason trackSelectionReason: Int,
    trackSelectionData: Any?,
    startTimeUs: Long,
    endTimeUs: Long
)

Parameters
`dataSource: DataSource!`	The source from which the data should be loaded.
`dataSpec: DataSpec!`	Defines the data to be loaded.
`@C.DataType type: Int`	See `type`.
`trackFormat: Format!`	See `trackFormat`.
`@C.SelectionReason trackSelectionReason: Int`	See `trackSelectionReason`.
`trackSelectionData: Any?`	See `trackSelectionData`.
`startTimeUs: Long`	See `startTimeUs`.
`endTimeUs: Long`	See `endTimeUs`.

Public functions

bytesLoaded

fun bytesLoaded(): Long

Returns the number of bytes that have been loaded. Must only be called after the load completed, failed, or was canceled.

getDurationUs

fun getDurationUs(): Long

Returns the duration of the chunk in microseconds.

getResponseHeaders

fun getResponseHeaders(): (Mutable)Map<String!, (Mutable)List<String!>!>!

Returns the response headers associated with the last open call. Must only be called after the load completed, failed, or was canceled.

See also
`getResponseHeaders`

getUri

fun getUri(): Uri!

Returns the Uri associated with the last open call. If redirection occurred, this is the redirected uri. Must only be called after the load completed, failed, or was canceled.

See also
`getUri`

Public properties

dataSpec

val dataSpec: DataSpec!

The DataSpec that defines the data to be loaded.

endTimeUs

val endTimeUs: Long

The end time of the media contained by the chunk, or TIME_UNSET if the data being loaded does not contain media samples.

loadTaskId

val loadTaskId: Long

Identifies the load task for this loadable.

startTimeUs

val startTimeUs: Long

The start time of the media contained by the chunk, or TIME_UNSET if the data being loaded does not contain media samples.

trackFormat

val trackFormat: Format!

The format of the track to which this chunk belongs.

trackSelectionData

val trackSelectionData: Any?

Optional data associated with the selection of the track to which this chunk belongs. Null if the chunk does not belong to a track, or if there is no associated track selection data.

trackSelectionReason

@C.SelectionReason
val trackSelectionReason: Int

One of the selection reasons if the chunk belongs to a track. SELECTION_REASON_UNKNOWN if the chunk does not belong to a track, or if the selection reason is unknown.

type

@C.DataType
val type: Int

The data type of the chunk. For reporting only.

Protected properties

dataSource

protected val dataSource: StatsDataSource!