com.google.android.exoplayer2.source.hls

Class WebvttExtractor

java.lang.Object

com.google.android.exoplayer2.source.hls.WebvttExtractor

All Implemented Interfaces:

com.google.android.exoplayer2.extractor.Extractor

public final class WebvttExtractor
extends java.lang.Object
implements com.google.android.exoplayer2.extractor.Extractor

A special purpose extractor for WebVTT content in HLS.

This extractor passes through non-empty WebVTT files untouched, however derives the correct sample timestamp for each by sniffing the X-TIMESTAMP-MAP header along with the start timestamp of the first cue header. Empty WebVTT files are not passed through, since it's not possible to derive a sample timestamp in this case.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.extractor.Extractor

com.google.android.exoplayer2.extractor.Extractor.ReadResult

Field Summary

Fields inherited from interface com.google.android.exoplayer2.extractor.Extractor

RESULT_CONTINUE, RESULT_END_OF_INPUT, RESULT_SEEK

Constructor Summary

Constructors

Constructor and Description
WebvttExtractor(java.lang.String language, com.google.android.exoplayer2.util.TimestampAdjuster timestampAdjuster)

Method Summary

Modifier and Type	Method and Description
void	init(com.google.android.exoplayer2.extractor.ExtractorOutput output)
int	read(com.google.android.exoplayer2.extractor.ExtractorInput input, com.google.android.exoplayer2.extractor.PositionHolder seekPosition)
void	release()
void	seek(long position, long timeUs)
boolean	sniff(com.google.android.exoplayer2.extractor.ExtractorInput input)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WebvttExtractor

public WebvttExtractor(java.lang.String language,
                       com.google.android.exoplayer2.util.TimestampAdjuster timestampAdjuster)

Method Detail

sniff

public boolean sniff(com.google.android.exoplayer2.extractor.ExtractorInput input)
              throws java.io.IOException,
                     java.lang.InterruptedException

Specified by:

sniff in interface com.google.android.exoplayer2.extractor.Extractor

Throws:

java.io.IOException

java.lang.InterruptedException

init

public void init(com.google.android.exoplayer2.extractor.ExtractorOutput output)

Specified by:

init in interface com.google.android.exoplayer2.extractor.Extractor

seek

public void seek(long position,
                 long timeUs)

Specified by:

seek in interface com.google.android.exoplayer2.extractor.Extractor

release

public void release()

Specified by:

release in interface com.google.android.exoplayer2.extractor.Extractor

read

public int read(com.google.android.exoplayer2.extractor.ExtractorInput input,
                com.google.android.exoplayer2.extractor.PositionHolder seekPosition)
         throws java.io.IOException,
                java.lang.InterruptedException

Specified by:

read in interface com.google.android.exoplayer2.extractor.Extractor

Throws:

java.io.IOException

java.lang.InterruptedException