Tracks.Group

Kotlin |Java

class Tracks.Group

Information about a single group of tracks, including the underlying TrackGroup, the level to which each track is supported by the player, and whether any of the tracks are selected.

Summary

Public constructors
`@UnstableApi Group( mediaTrackGroup: TrackGroup!, adaptiveSupported: Boolean, @C.FormatSupport trackSupport: IntArray!, trackSelected: BooleanArray! )` Constructs an instance.

Public functions
`Tracks.Group!`	`@UnstableApi copyWithId(groupId: String!)` Copies the `Group` with a new `id`.
`Boolean`	`equals(other: Any?)`
`java-static Tracks.Group!`	`@UnstableApi fromBundle(bundle: Bundle!)` Restores a group of tracks from a `Bundle`.
`Format!`	`getTrackFormat(trackIndex: Int)` Returns the `Format` for a specified track.
`Int`	`@UnstableApi @C.FormatSupport getTrackSupport(trackIndex: Int)` Returns the level of support for a specified track.
`Int`	`@C.TrackType getType()` Returns the `C.TrackType` of the group.
`Int`	`hashCode()`
`Boolean`	`isAdaptiveSupported()` Returns whether adaptive selections containing more than one track are supported.
`Boolean`	`isSelected()` Returns whether at least one track in the group is selected for playback.
`Boolean`	`isSupported()` Returns whether at least one track in the group is supported for playback, without exceeding the advertised capabilities of the device.
`Boolean`	`isSupported(allowExceedsCapabilities: Boolean)` Returns whether at least one track in the group is supported for playback.
`Boolean`	`isTrackSelected(trackIndex: Int)` Returns whether a specified track is selected for playback.
`Boolean`	`isTrackSupported(trackIndex: Int)` Returns whether a specified track is supported for playback, without exceeding the advertised capabilities of the device.
`Boolean`	`isTrackSupported(trackIndex: Int, allowExceedsCapabilities: Boolean)` Returns whether a specified track is supported for playback.
`Bundle!`	`toBundle()`

Public properties
`Int`	`length` The number of tracks in the group.
`TrackGroup!`	`mediaTrackGroup`

Public constructors

Group

@UnstableApi
Group(
    mediaTrackGroup: TrackGroup!,
    adaptiveSupported: Boolean,
    @C.FormatSupport trackSupport: IntArray!,
    trackSelected: BooleanArray!
)

Constructs an instance.

Parameters
`mediaTrackGroup: TrackGroup!`	The underlying `TrackGroup` defined by the media.
`adaptiveSupported: Boolean`	Whether the player supports adaptive selections containing more than one track in the group.
`@C.FormatSupport trackSupport: IntArray!`	The `C.FormatSupport` of each track in the group.
`trackSelected: BooleanArray!`	Whether each track in the `trackGroup` is selected.

Public functions

copyWithId

@UnstableApi
fun copyWithId(groupId: String!): Tracks.Group!

Copies the Group with a new id.

Parameters
`groupId: String!`	The new `id`

Returns
`Tracks.Group!`	The copied `Group`.

equals

fun equals(other: Any?): Boolean

fromBundle

@UnstableApi
java-static fun fromBundle(bundle: Bundle!): Tracks.Group!

Restores a group of tracks from a Bundle.

getTrackFormat

fun getTrackFormat(trackIndex: Int): Format!

Returns the Format for a specified track.

Parameters
`trackIndex: Int`	The index of the track in the group.

Returns
`Format!`	The `Format` of the track.

getTrackSupport

@UnstableApi
@C.FormatSupport
fun getTrackSupport(trackIndex: Int): Int

Returns the level of support for a specified track.

Parameters
`trackIndex: Int`	The index of the track in the group.

Returns
`Int`	The `C.FormatSupport` of the track.

getType

@C.TrackType
fun getType(): Int

Returns the C.TrackType of the group.

hashCode

fun hashCode(): Int

isAdaptiveSupported

fun isAdaptiveSupported(): Boolean

Returns whether adaptive selections containing more than one track are supported.

isSelected

fun isSelected(): Boolean

Returns whether at least one track in the group is selected for playback.

isSupported

fun isSupported(): Boolean

Returns whether at least one track in the group is supported for playback, without exceeding the advertised capabilities of the device. Equivalent to isSupported(false).

isSupported

fun isSupported(allowExceedsCapabilities: Boolean): Boolean

Returns whether at least one track in the group is supported for playback.

Parameters
`allowExceedsCapabilities: Boolean`	Whether to consider a track as supported if it has a supported `MIME type`, but otherwise exceeds the advertised capabilities of the device. For example, a video track for which there's a corresponding decoder whose maximum advertised resolution is exceeded by the resolution of the track. Such tracks may be playable in some cases.

isTrackSelected

fun isTrackSelected(trackIndex: Int): Boolean

Returns whether a specified track is selected for playback.

Note that multiple tracks in the group may be selected. This is common in adaptive streaming, where tracks of different qualities are selected and the player switches between them during playback (e.g., based on the available network bandwidth).

This class doesn't provide a way to determine which of the selected tracks is currently playing, however some player implementations have ways of getting such information. For example, ExoPlayer provides this information via ExoTrackSelection.getSelectedFormat.

Parameters
`trackIndex: Int`	The index of the track in the group.

Returns
`Boolean`	True if the track is selected, false otherwise.

isTrackSupported

fun isTrackSupported(trackIndex: Int): Boolean

Returns whether a specified track is supported for playback, without exceeding the advertised capabilities of the device. Equivalent to isTrackSupported(trackIndex, false).

Parameters
`trackIndex: Int`	The index of the track in the group.

Returns
`Boolean`	True if the track's format can be played, false otherwise.

isTrackSupported

fun isTrackSupported(trackIndex: Int, allowExceedsCapabilities: Boolean): Boolean

Returns whether a specified track is supported for playback.

Parameters
`trackIndex: Int`	The index of the track in the group.
`allowExceedsCapabilities: Boolean`	Whether to consider the track as supported if it has a supported `MIME type`, but otherwise exceeds the advertised capabilities of the device. For example, a video track for which there's a corresponding decoder whose maximum advertised resolution is exceeded by the resolution of the track. Such tracks may be playable in some cases.

Returns
`Boolean`	True if the track's format can be played, false otherwise.

toBundle

fun toBundle(): Bundle!

Public properties

length

val length: Int

The number of tracks in the group.

mediaTrackGroup

val mediaTrackGroup: TrackGroup!