MetadataRetriever

Kotlin |Java

@UnstableApi
class MetadataRetriever : AutoCloseable

Summary

Nested types
`class MetadataRetriever.Builder` Builder for `MetadataRetriever` instances.

Constants
`const Int`	`DEFAULT_MAXIMUM_PARALLEL_RETRIEVALS = 5` The default number of maximum parallel retrievals.

Public functions
`Unit`	`close()`
`ListenableFuture<Long!>!`	`retrieveDurationUs()` Asynchronously retrieves the duration for the `MediaItem`.
`java-static ListenableFuture<TrackGroupArray!>!`	`retrieveMetadata(context: Context!, mediaItem: MediaItem!)` This function is deprecated. Use `Builder` to create an instance and call `retrieveTrackGroups` instead.
`java-static ListenableFuture<TrackGroupArray!>!`	`retrieveMetadata( mediaSourceFactory: MediaSource.Factory!, mediaItem: MediaItem! )` This function is deprecated. Use `Builder` to create an instance and call `retrieveTrackGroups` instead.
`ListenableFuture<Timeline!>!`	`retrieveTimeline()` Asynchronously retrieves the `Timeline` for the `MediaItem`.
`ListenableFuture<TrackGroupArray!>!`	`retrieveTrackGroups()` Asynchronously retrieves the `TrackGroupArray` for the `MediaItem`.
`java-static Unit`	`setMaximumParallelRetrievals(maximumParallelRetrievals: Int)` Sets the maximum number of metadata retrievals run in parallel.

const val DEFAULT_MAXIMUM_PARALLEL_RETRIEVALS = 5: Int

The default number of maximum parallel retrievals.

fun close(): Unit

fun retrieveDurationUs(): ListenableFuture<Long!>!

Asynchronously retrieves the duration for the MediaItem.

Returns
`ListenableFuture<Long!>!`	A `ListenableFuture` that will be populated with the duration in microseconds, or `TIME_UNSET` if unknown.

java-static fun retrieveMetadata(context: Context!, mediaItem: MediaItem!): ListenableFuture<TrackGroupArray!>!

java-static fun retrieveMetadata(
    mediaSourceFactory: MediaSource.Factory!,
    mediaItem: MediaItem!
): ListenableFuture<TrackGroupArray!>!

fun retrieveTimeline(): ListenableFuture<Timeline!>!

Asynchronously retrieves the Timeline for the MediaItem.

Returns
`ListenableFuture<Timeline!>!`	A `ListenableFuture` that will be populated with the `Timeline`.

fun retrieveTrackGroups(): ListenableFuture<TrackGroupArray!>!

Asynchronously retrieves the TrackGroupArray for the MediaItem.

Returns
`ListenableFuture<TrackGroupArray!>!`	A `ListenableFuture` that will be populated with the `TrackGroupArray`.

java-static fun setMaximumParallelRetrievals(maximumParallelRetrievals: Int): Unit

Sets the maximum number of metadata retrievals run in parallel.

Parameters
`maximumParallelRetrievals: Int`	The maximum number of parallel retrievals.