SubtitleTranscodingExtractorOutput

Artifact: androidx.media3:media3-extractor

Kotlin |Java

@UnstableApi
class SubtitleTranscodingExtractorOutput : ExtractorOutput

A wrapping ExtractorOutput that transcodes text samples from supported subtitle formats to APPLICATION_MEDIA3_CUES.

The resulting APPLICATION_MEDIA3_CUES samples are emitted to the underlying TrackOutput.

For non-text tracks (i.e. where C.TrackType is not C.TRACK_TYPE_TEXT), samples are passed through to the underlying TrackOutput without modification.

Support for subtitle formats is determined by supportsFormat on the SubtitleParser.Factory passed to the constructor of this class.

Summary

Public constructors
`SubtitleTranscodingExtractorOutput( delegate: ExtractorOutput!, subtitleParserFactory: SubtitleParser.Factory! )`

Public functions
`Unit`	`endTracks()` Called when all tracks have been identified, meaning no new `trackId` values will be passed to `track`.
`Unit`	`resetSubtitleParsers()`
`Unit`	`seekMap(seekMap: SeekMap!)` Called when a `SeekMap` has been extracted from the stream.
`TrackOutput!`	`track(id: Int, @C.TrackType type: Int)` Called by the `Extractor` to get the `TrackOutput` for a specific track.

Inherited Constants

From androidx.media3.extractor.ExtractorOutput

const ExtractorOutput!

PLACEHOLDER

Placeholder ExtractorOutput implementation throwing an in each method.

Public constructors

SubtitleTranscodingExtractorOutput

SubtitleTranscodingExtractorOutput(
    delegate: ExtractorOutput!,
    subtitleParserFactory: SubtitleParser.Factory!
)

Public functions

endTracks

fun endTracks(): Unit

Called when all tracks have been identified, meaning no new trackId values will be passed to track.

resetSubtitleParsers

fun resetSubtitleParsers(): Unit

seekMap

fun seekMap(seekMap: SeekMap!): Unit

Called when a SeekMap has been extracted from the stream.

Parameters
`seekMap: SeekMap!`	The extracted `SeekMap`.

track

fun track(id: Int, @C.TrackType type: Int): TrackOutput!

Called by the Extractor to get the TrackOutput for a specific track.

The same TrackOutput is returned if multiple calls are made with the same id.

Parameters
`id: Int`	A track identifier.
`@C.TrackType type: Int`	The `track type`.

Returns
`TrackOutput!`	The `TrackOutput` for the given track identifier.