SimpleMetadataDecoder

Kotlin |Java

@UnstableApi
public abstract class SimpleMetadataDecoder implements MetadataDecoder

Known direct subclasses

`AppInfoTableDecoder`	Decoder for the DVB Application Information Table (AIT).
`EventMessageDecoder`	Decodes data encoded by `EventMessageEncoder`.
`IcyDecoder`	Decodes ICY stream information.
`Id3Decoder`	Decodes ID3 tags.
`SpliceInfoDecoder`	Decodes splice info sections and produces splice commands.

A MetadataDecoder base class that validates input buffers.

Summary

Public constructors
`SimpleMetadataDecoder()`

Public methods
`final @Nullable Metadata`	`decode(MetadataInputBuffer inputBuffer)` Decodes a `Metadata` element from the provided input buffer.

Protected methods
`abstract @Nullable Metadata`	`decode(MetadataInputBuffer inputBuffer, ByteBuffer buffer)` Called by `decode` after input buffer validation has been performed.

public SimpleMetadataDecoder()

public final @Nullable Metadata decode(MetadataInputBuffer inputBuffer)

Decodes a Metadata element from the provided input buffer.

Respects limit of inputBuffer.data, but assumes position and arrayOffset are both zero and hasArray is true.

Parameters
`MetadataInputBuffer inputBuffer`	The input buffer to decode.

Returns
`@Nullable Metadata`	The decoded metadata object, or `null` if the metadata could not be decoded.

protected abstract @Nullable Metadata decode(MetadataInputBuffer inputBuffer, ByteBuffer buffer)

Called by decode after input buffer validation has been performed.

Parameters
`MetadataInputBuffer inputBuffer`	The input buffer to decode.
`ByteBuffer buffer`	The input buffer's `data buffer`, for convenience. Validation by decode guarantees that `hasArray`, `position` and `arrayOffset` are `true`, `0` and `0` respectively.

Returns
`@Nullable Metadata`	The decoded metadata object, or `null` if the metadata could not be decoded.