Mp4WebvttParser

@UnstableApi
class Mp4WebvttParser : SubtitleParser

A SubtitleParser for Webvtt embedded in a Mp4 container file.

Summary

Constants
const Int

The CueReplacementBehavior for consecutive CuesWithTiming emitted by this implementation.

Public constructors

Public functions
Int

Returns the CueReplacementBehavior for consecutive CuesWithTiming emitted by this implementation.
Unit
parse(
    data: ByteArray!,
    offset: Int,
    length: Int,
    outputOptions: SubtitleParser.OutputOptions!,
    output: Consumer<CuesWithTiming!>!
)

Parses data (and any data stored from previous invocations) and emits any resulting complete CuesWithTiming instances via output.

Inherited functions
From androidx.media3.extractor.text.SubtitleParser
Unit
parse(
    data: ByteArray!,
    outputOptions: SubtitleParser.OutputOptions!,
    output: Consumer<CuesWithTiming!>!
)

Parses data (and any data stored from previous invocations) and emits resulting instances.
Subtitle!
parseToLegacySubtitle(data: ByteArray!, offset: Int, length: Int)

Parses data to a legacy Subtitle instance.
Unit

Clears any data stored inside this parser from previous parse calls.

Constants

CUE_REPLACEMENT_BEHAVIOR

@Format.CueReplacementBehavior
const val CUE_REPLACEMENT_BEHAVIOR = 2: Int

The CueReplacementBehavior for consecutive CuesWithTiming emitted by this implementation.

Public constructors

Mp4WebvttParser

Mp4WebvttParser()

Public functions

getCueReplacementBehavior

@Format.CueReplacementBehavior
fun getCueReplacementBehavior(): Int

Returns the CueReplacementBehavior for consecutive CuesWithTiming emitted by this implementation.

A given instance must always return the same value from this method.

parse

fun parse(
    data: ByteArray!,
    offset: Int,
    length: Int,
    outputOptions: SubtitleParser.OutputOptions!,
    output: Consumer<CuesWithTiming!>!
): Unit

Parses data (and any data stored from previous invocations) and emits any resulting complete CuesWithTiming instances via output.

Any samples not used from data will be persisted and used during subsequent calls to this method.

startTimeUs in an emitted instance is derived only from the provided sample data, so has to be considered together with any relevant subsampleOffsetUs. If the provided sample doesn't contain any timing information then at most one CuesWithTiming instance will be emitted, with startTimeUs set to TIME_UNSET, in which case subsampleOffsetUsmust be OFFSET_SAMPLE_RELATIVE.

Parameters
data: ByteArray!

The subtitle data to parse. This must contain only complete samples. For subtitles muxed inside a media container, a sample is usually defined by the container. For subtitles read from a text file, a sample is usually the entire contents of the text file.
offset: Int

The index in data to start reading from (inclusive).
length: Int

The number of bytes to read from data.
outputOptions: SubtitleParser.OutputOptions!

Options to control how instances are emitted to output.
output: Consumer<CuesWithTiming!>!

A consumer for CuesWithTiming instances emitted by this method. All calls will be made on the thread that called this method, and will be completed before this method returns.