BaseMediaChunk

Artifact: androidx.media3:media3-exoplayer

Kotlin |Java

@UnstableApi
public abstract class BaseMediaChunk extends MediaChunk

java.lang.Object
↳	androidx.media3.exoplayer.source.chunk.Chunk
	↳	androidx.media3.exoplayer.source.chunk.MediaChunk
		↳	androidx.media3.exoplayer.source.chunk.BaseMediaChunk

Known direct subclasses

ContainerMediaChunk, SingleSampleMediaChunk

ContainerMediaChunk

A BaseMediaChunk that uses an Extractor to decode sample data.

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.

A base implementation of MediaChunk that outputs to a BaseMediaChunkOutput.

Summary

Public fields
`final long`	`clippedEndTimeUs` The time from which output will end, or `TIME_UNSET` if output will end at the end of the chunk.
`final long`	`clippedStartTimeUs` The time from which output will begin, or `TIME_UNSET` if output will begin from the start of the chunk.

Protected fields
`@MonotonicNonNull BaseMediaChunkOutput`	`@MonotonicNonNull output`

Public constructors
`BaseMediaChunk( DataSource dataSource, DataSpec dataSpec, Format trackFormat, @C.SelectionReason int trackSelectionReason, @Nullable Object trackSelectionData, long startTimeUs, long endTimeUs, long clippedStartTimeUs, long clippedEndTimeUs, long chunkIndex )`

Public methods
`final int`	`getFirstSampleIndex(int trackIndex)` Returns the index of the first sample in the specified track of the output that will originate from this chunk.
`void`	`init(BaseMediaChunkOutput output)` Initializes the chunk for loading, setting the `BaseMediaChunkOutput` that will receive samples as they are loaded.

Protected methods
`final BaseMediaChunkOutput`	`getOutput()` Returns the output most recently passed to `init`.

Inherited fields

From androidx.media3.exoplayer.source.chunk.Chunk

`final StatsDataSource`	`dataSource`
`final DataSpec`	`dataSpec` The `DataSpec` that defines the data to be loaded.
`final 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.
`final long`	`loadTaskId` Identifies the load task for this loadable.
`final 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.
`final Format`	`trackFormat` The format of the track to which this chunk belongs.
`final @Nullable Object`	`trackSelectionData` Optional data associated with the selection of the track to which this chunk belongs.
`final int`	`@C.SelectionReason trackSelectionReason` One of the `selection reasons` if the chunk belongs to a track.
`final int`	`@C.DataType type` The `data type` of the chunk.

From androidx.media3.exoplayer.source.chunk.MediaChunk

final long

chunkIndex

The chunk index, or INDEX_UNSET if it is not known.

Inherited methods

From androidx.media3.exoplayer.source.chunk.Chunk

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

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

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

From androidx.media3.exoplayer.source.chunk.MediaChunk

`long`	`getNextChunkIndex()` Returns the next chunk index or `INDEX_UNSET` if it is not known.
`abstract boolean`	`isLoadCompleted()` Returns whether the chunk has been fully loaded.

Public fields

clippedEndTimeUs

public final long clippedEndTimeUs

The time from which output will end, or TIME_UNSET if output will end at the end of the chunk.

clippedStartTimeUs

public final long clippedStartTimeUs

The time from which output will begin, or TIME_UNSET if output will begin from the start of the chunk.

Protected fields

output

@MonotonicNonNull
protected @MonotonicNonNull BaseMediaChunkOutput output

Public constructors

BaseMediaChunk

public BaseMediaChunk(
    DataSource dataSource,
    DataSpec dataSpec,
    Format trackFormat,
    @C.SelectionReason int trackSelectionReason,
    @Nullable Object trackSelectionData,
    long startTimeUs,
    long endTimeUs,
    long clippedStartTimeUs,
    long clippedEndTimeUs,
    long chunkIndex
)

Parameters
`DataSource dataSource`	The source from which the data should be loaded.
`DataSpec dataSpec`	Defines the data to be loaded.
`Format trackFormat`	See `trackFormat`.
`@C.SelectionReason int trackSelectionReason`	See `trackSelectionReason`.
`@Nullable Object trackSelectionData`	See `trackSelectionData`.
`long startTimeUs`	The start time of the media contained by the chunk, in microseconds.
`long endTimeUs`	The end time of the media contained by the chunk, in microseconds.
`long clippedStartTimeUs`	The time in the chunk from which output will begin, or `TIME_UNSET` to output from the start of the chunk.
`long clippedEndTimeUs`	The time in the chunk from which output will end, or `TIME_UNSET` to output to the end of the chunk.
`long chunkIndex`	The index of the chunk, or `INDEX_UNSET` if it is not known.

Public methods

getFirstSampleIndex

public final int getFirstSampleIndex(int trackIndex)

Returns the index of the first sample in the specified track of the output that will originate from this chunk.

init

public void init(BaseMediaChunkOutput output)

Initializes the chunk for loading, setting the BaseMediaChunkOutput that will receive samples as they are loaded.

Parameters
`BaseMediaChunkOutput output`	The output that will receive the loaded media samples.

Protected methods

getOutput

protected final BaseMediaChunkOutput getOutput()

Returns the output most recently passed to init.