docs/doc/reference/com/google/android/exoplayer2/source/dash/PlayerEmsgHandler.PlayerTrackEmsgHandler.html
Package com.google.android.exoplayer2.source.dash
All Implemented Interfaces:TrackOutputEnclosing class:PlayerEmsgHandler
public final classPlayerEmsgHandler.PlayerTrackEmsgHandlerextends[Object](https://developer.android.com/reference/java/lang/Object.html "class or interface in java.lang")implements[TrackOutput](../../extractor/TrackOutput.html "interface in com.google.android.exoplayer2.extractor")
Handles emsg messages for a specific track for the player.
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TrackOutput.CryptoData, TrackOutput.SampleDataPart
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SAMPLE_DATA_PART_ENCRYPTION, SAMPLE_DATA_PART_MAIN, SAMPLE_DATA_PART_SUPPLEMENTAL
All Methods Instance Methods Concrete Methods | Modifier and Type | Method | Description |
| --- | --- | --- |
| void | format(Format format) |
Called when the Format of the track has been extracted from the stream.
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| boolean | maybeRefreshManifestBeforeLoadingNextChunk(long presentationPositionUs) |
For live streaming, check if the DASH manifest is expired before the next segment start time.
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| void | onChunkLoadCompleted(Chunk chunk) |
Called when a chunk load has been completed.
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| boolean | onChunkLoadError(Chunk chunk) |
Called when a chunk load has encountered an error.
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| void | release() |
Release this track emsg handler.
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| int | sampleData(DataReader input, int length, boolean allowEndOfInput, @com.google.android.exoplayer2.extractor.TrackOutput.SampleDataPart int sampleDataPart) |
Called to write sample data to the output.
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| void | sampleData(ParsableByteArray data, int length, @com.google.android.exoplayer2.extractor.TrackOutput.SampleDataPart int sampleDataPart) |
Called to write sample data to the output.
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| void | sampleMetadata(long timeUs, int flags, int size, int offset, TrackOutput.CryptoData cryptoData) |
Called when metadata associated with a sample has been extracted from the stream.
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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sampleData, sampleData
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public void format([Format](../../Format.html "class in com.google.android.exoplayer2")format)
Description copied from interface: TrackOutput
Called when the Format of the track has been extracted from the stream.
Specified by:format in interface TrackOutputParameters:format - The extracted Format.
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public int sampleData([DataReader](../../upstream/DataReader.html "interface in com.google.android.exoplayer2.upstream")input,
int length,
boolean allowEndOfInput,
@com.google.android.exoplayer2.extractor.TrackOutput.SampleDataPart int sampleDataPart)
throws[IOException](https://developer.android.com/reference/java/io/IOException.html "class or interface in java.io")
Description copied from interface: TrackOutput
Called to write sample data to the output.
Specified by:sampleData in interface TrackOutputParameters:input - A DataReader from which to read the sample data.length - The maximum length to read from the input.allowEndOfInput - True if encountering the end of the input having read no data is allowed, and should result in C.RESULT_END_OF_INPUT being returned. False if it should be considered an error, causing an EOFException to be thrown.sampleDataPart - The part of the sample data to which this call corresponds.Returns:The number of bytes appended.Throws:IOException - If an error occurred reading from the input.
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public void sampleData([ParsableByteArray](../../util/ParsableByteArray.html "class in com.google.android.exoplayer2.util")data,
int length,
@com.google.android.exoplayer2.extractor.TrackOutput.SampleDataPart int sampleDataPart)
Description copied from interface: TrackOutput
Called to write sample data to the output.
Specified by:sampleData in interface TrackOutputParameters:data - A ParsableByteArray from which to read the sample data.length - The number of bytes to read, starting from data.getPosition().sampleDataPart - The part of the sample data to which this call corresponds.
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public void sampleMetadata(long timeUs,
int flags,
int size,
int offset,
@Nullable[TrackOutput.CryptoData](../../extractor/TrackOutput.CryptoData.html "class in com.google.android.exoplayer2.extractor")cryptoData)
Description copied from interface: TrackOutput
Called when metadata associated with a sample has been extracted from the stream.
The corresponding sample data will have already been passed to the output via calls to TrackOutput.sampleData(DataReader, int, boolean) or TrackOutput.sampleData(ParsableByteArray, int).
Specified by:sampleMetadata in interface TrackOutputParameters:timeUs - The media timestamp associated with the sample, in microseconds.flags - Flags associated with the sample. See C.BUFFER_FLAG_*.size - The size of the sample data, in bytes.offset - The number of bytes that have been passed to TrackOutput.sampleData(DataReader, int, boolean) or TrackOutput.sampleData(ParsableByteArray, int) since the last byte belonging to the sample whose metadata is being passed.cryptoData - The encryption data required to decrypt the sample. May be null.
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public boolean maybeRefreshManifestBeforeLoadingNextChunk(long presentationPositionUs)
For live streaming, check if the DASH manifest is expired before the next segment start time. If it is, the DASH media source will be notified to refresh the manifest.
Parameters:presentationPositionUs - The next load position in presentation time.Returns:True if manifest refresh has been requested, false otherwise.
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public void onChunkLoadCompleted([Chunk](../chunk/Chunk.html "class in com.google.android.exoplayer2.source.chunk")chunk)
Called when a chunk load has been completed.
Parameters:chunk - The chunk whose load has been completed.
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public boolean onChunkLoadError([Chunk](../chunk/Chunk.html "class in com.google.android.exoplayer2.source.chunk")chunk)
Called when a chunk load has encountered an error.
Parameters:chunk - The chunk whose load encountered an error.Returns:Whether a manifest refresh has been requested.
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public void release()
Release this track emsg handler. It should not be reused after this call.