DefaultTrackSelector

Artifact: androidx.media3:media3-exoplayer

Kotlin |Java

@UnstableApi
class DefaultTrackSelector : MappingTrackSelector, RendererCapabilities.Listener

kotlin.Any
↳	androidx.media3.exoplayer.trackselection.TrackSelector
	↳	androidx.media3.exoplayer.trackselection.MappingTrackSelector
		↳	androidx.media3.exoplayer.trackselection.DefaultTrackSelector

Known direct subclasses

FakeTrackSelector

FakeTrackSelector

A fake MappingTrackSelector that returns FakeTrackSelections.

A default TrackSelector suitable for most use cases.

Modifying parameters

Track selection parameters should be modified by obtaining a initialized with the current TrackSelectionParameters from the player. The desired modifications can be made on the builder, and the resulting can then be built and set on the player:

player.setTrackSelectionParameters(
    player.getTrackSelectionParameters()
        .buildUpon()
        .setMaxVideoSizeSd()
        .setPreferredAudioLanguage("de")
        .build());

Some specialized parameters are only available in the extended Parameters class, which can be retrieved and modified in a similar way by calling methods directly on this class:

defaultTrackSelector.setParameters(
    defaultTrackSelector.getParameters()
        .buildUpon()
        .setTunnelingEnabled(true)
        .build());

Summary

Nested types
`class DefaultTrackSelector.Parameters : TrackSelectionParameters` Extends `Parameters` by adding fields that are specific to `DefaultTrackSelector`.
`class DefaultTrackSelector.Parameters.Builder : TrackSelectionParameters.Builder` A builder for `Parameters`.
`class DefaultTrackSelector.ParametersBuilder : TrackSelectionParameters.Builder` This class is deprecated. Use `Parameters.Builder` instead.
`@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = TYPE_USE) @IntDef(value = ) protected annotation DefaultTrackSelector.SelectionEligibility` The extent to which tracks are eligible for selection.
`class DefaultTrackSelector.SelectionOverride` A track selection override.

Constants
`const Int`	`SELECTION_ELIGIBILITY_ADAPTIVE = 2` Track is eligible for both a fixed selection and as part of an adaptive selection with multiple tracks.
`const Int`	`SELECTION_ELIGIBILITY_FIXED = 1` Track is eligible for a fixed selection with one track.
`const Int`	`SELECTION_ELIGIBILITY_NO = 0` Track is not eligible for selection.

Public constructors
`DefaultTrackSelector(context: Context!)`
`DefaultTrackSelector( context: Context!, parameters: TrackSelectionParameters! )`
`DefaultTrackSelector( context: Context!, trackSelectionFactory: ExoTrackSelection.Factory! )`
`DefaultTrackSelector( parameters: TrackSelectionParameters!, trackSelectionFactory: ExoTrackSelection.Factory! )` This function is deprecated. Use `DefaultTrackSelector`
`DefaultTrackSelector( context: Context!, parameters: TrackSelectionParameters!, trackSelectionFactory: ExoTrackSelection.Factory! )`

Public functions
`DefaultTrackSelector.Parameters.Builder!`	`buildUponParameters()` Returns a new `Parameters.Builder` initialized with the current selection parameters.
`RendererCapabilities.Listener?`	`getRendererCapabilitiesListener()` Returns the `RendererCapabilities.Listener` that the concrete instance uses to listen to the renderer capabilities changes.
`Boolean`	`isSetParametersSupported()` Returns if this `TrackSelector` supports `setParameters`.
`Unit`	`onRendererCapabilitiesChanged(renderer: Renderer!)` Called when the renderer capabilities are changed.
`Unit`	`release()` Called by the player to release the selector.
`Unit`	`setAudioAttributes(audioAttributes: AudioAttributes!)` Called by the player to set the `AudioAttributes` that will be used for playback.
`Unit`	`setParameters( parametersBuilder: DefaultTrackSelector.Parameters.Builder! )` Atomically sets the provided parameters for track selection.
`Unit`	`setParameters( parametersBuilder: DefaultTrackSelector.ParametersBuilder! )` This function is deprecated. Use `setParameters` instead.
`Unit`	`setParameters(parameters: TrackSelectionParameters!)` Called by the player to provide parameters for track selection.

Protected functions
`java-static Int`	`getFormatLanguageScore( format: Format!, language: String?, allowUndeterminedFormatLanguage: Boolean )` Returns a score for how well a language specified in a `Format` matches a given language.
`java-static Boolean`	`isSupported( @RendererCapabilities.Capabilities formatSupport: Int, allowExceedsCapabilities: Boolean )` This function is deprecated. Use `isFormatSupported` instead.
`java-static String?`	`normalizeUndeterminedLanguageToNull(language: String?)` Normalizes the input string to null if it does not define a language, or returns it otherwise.
`Array<@NullableType ExoTrackSelection.Definition!>!`	`selectAllTracks( mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!, @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!, @RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupports: IntArray!, params: DefaultTrackSelector.Parameters! )` Called from `selectTracks` to make a track selection for each renderer, prior to overrides and disabled flags being applied.
`Pair<ExoTrackSelection.Definition!, Int!>?`	`selectAudioTrack( mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!, @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!, @RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupports: IntArray!, params: DefaultTrackSelector.Parameters! )` Called by `selectAllTracks` to create a `ExoTrackSelection.Definition` for an audio track selection.
`Pair<ExoTrackSelection.Definition!, Int!>?`	`selectImageTrack( mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!, @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!, params: DefaultTrackSelector.Parameters! )` Called by `selectAllTracks` to create a `ExoTrackSelection.Definition` for an image track selection.
`ExoTrackSelection.Definition?`	`selectOtherTrack( trackType: Int, groups: TrackGroupArray!, @RendererCapabilities.Capabilities formatSupport: Array<IntArray!>!, params: DefaultTrackSelector.Parameters! )` Called by `selectAllTracks` to create a `ExoTrackSelection` for a renderer whose type is neither video, audio or text.
`Pair<ExoTrackSelection.Definition!, Int!>?`	`selectTextTrack( mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!, @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!, params: DefaultTrackSelector.Parameters!, selectedAudioLanguage: String? )` Called by `selectAllTracks` to create a `ExoTrackSelection.Definition` for a text track selection.
`Pair<Array<@NullableType RendererConfiguration!>!, Array<@NullableType ExoTrackSelection!>!>!`	`selectTracks( mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!, @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!, @RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupport: IntArray!, mediaPeriodId: MediaSource.MediaPeriodId!, timeline: Timeline! )` Given mapped track information, returns a track selection and configuration for each renderer.
`Pair<ExoTrackSelection.Definition!, Int!>?`	`selectVideoTrack( mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!, @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!, @RendererCapabilities.AdaptiveSupport mixedMimeTypeSupports: IntArray!, params: DefaultTrackSelector.Parameters! )` Called by `selectAllTracks` to create a `ExoTrackSelection.Definition` for a video track selection.

Public properties
`Context?`	`context`
`DefaultTrackSelector.Parameters!`	`@GuardedBy(value = "lock") parameters`

Inherited functions

From androidx.media3.exoplayer.trackselection.MappingTrackSelector

`Unit`	`onSelectionActivated(info: Any?)` Called by the player when a `TrackSelectorResult` previously generated by `selectTracks` is activated.
`TrackSelectorResult!`	`selectTracks( rendererCapabilities: Array<RendererCapabilities!>!, trackGroups: TrackGroupArray!, periodId: MediaSource.MediaPeriodId!, timeline: Timeline! )` Called by the player to perform a track selection.

From androidx.media3.exoplayer.trackselection.TrackSelector

`TrackSelectionParameters!`	`getParameters()` Returns the current parameters for track selection.
`Unit`	`@CallSuper init( listener: TrackSelector.InvalidationListener!, bandwidthMeter: BandwidthMeter! )` Called by the player to initialize the selector.
`Unit`	`invalidate()` Calls `onTrackSelectionsInvalidated` to invalidate all previously generated track selections.
`Unit`	`invalidateForRendererCapabilitiesChange(renderer: Renderer!)` Calls `onRendererCapabilitiesChanged` to invalidate all previously generated track selections because a renderer's capabilities have changed.

Inherited properties

From androidx.media3.exoplayer.trackselection.MappingTrackSelector

MappingTrackSelector.MappedTrackInfo?

currentMappedTrackInfo

From androidx.media3.exoplayer.trackselection.TrackSelector

BandwidthMeter?

bandwidthMeter

Constants

SELECTION_ELIGIBILITY_ADAPTIVE

protected const val SELECTION_ELIGIBILITY_ADAPTIVE = 2: Int

Track is eligible for both a fixed selection and as part of an adaptive selection with multiple tracks.

SELECTION_ELIGIBILITY_FIXED

protected const val SELECTION_ELIGIBILITY_FIXED = 1: Int

Track is eligible for a fixed selection with one track.

SELECTION_ELIGIBILITY_NO

protected const val SELECTION_ELIGIBILITY_NO = 0: Int

Track is not eligible for selection.

Public constructors

DefaultTrackSelector

DefaultTrackSelector(context: Context!)

Parameters
`context: Context!`	Any `Context`.

DefaultTrackSelector

DefaultTrackSelector(
    context: Context!,
    parameters: TrackSelectionParameters!
)

Parameters
`context: Context!`	Any `Context`.
`parameters: TrackSelectionParameters!`	Initial `TrackSelectionParameters`.

DefaultTrackSelector

DefaultTrackSelector(
    context: Context!,
    trackSelectionFactory: ExoTrackSelection.Factory!
)

Parameters
`context: Context!`	Any `Context`.
`trackSelectionFactory: ExoTrackSelection.Factory!`	A factory for `ExoTrackSelection`s.

DefaultTrackSelector

DefaultTrackSelector(
    parameters: TrackSelectionParameters!,
    trackSelectionFactory: ExoTrackSelection.Factory!
)

DefaultTrackSelector

DefaultTrackSelector(
    context: Context!,
    parameters: TrackSelectionParameters!,
    trackSelectionFactory: ExoTrackSelection.Factory!
)

Parameters
`context: Context!`	Any `Context`.
`parameters: TrackSelectionParameters!`	Initial `TrackSelectionParameters`.
`trackSelectionFactory: ExoTrackSelection.Factory!`	A factory for `ExoTrackSelection`s.

Public functions

buildUponParameters

fun buildUponParameters(): DefaultTrackSelector.Parameters.Builder!

Returns a new Parameters.Builder initialized with the current selection parameters.

getRendererCapabilitiesListener

fun getRendererCapabilitiesListener(): RendererCapabilities.Listener?

Returns the RendererCapabilities.Listener that the concrete instance uses to listen to the renderer capabilities changes. May be null if the implementation does not listen to the renderer capabilities changes.

isSetParametersSupported

fun isSetParametersSupported(): Boolean

Returns if this TrackSelector supports setParameters.

The same value is always returned for a given TrackSelector instance.

onRendererCapabilitiesChanged

fun onRendererCapabilitiesChanged(renderer: Renderer!): Unit

Called when the renderer capabilities are changed.

This method will be called on the playback thread.

Parameters
`renderer: Renderer!`	The renderer that has its capabilities changed.

release

fun release(): Unit

Called by the player to release the selector. The selector cannot be used until init is called again.

setAudioAttributes

fun setAudioAttributes(audioAttributes: AudioAttributes!): Unit

Called by the player to set the AudioAttributes that will be used for playback.

setParameters

fun setParameters(
    parametersBuilder: DefaultTrackSelector.Parameters.Builder!
): Unit

Atomically sets the provided parameters for track selection.

Parameters
`parametersBuilder: DefaultTrackSelector.Parameters.Builder!`	A builder from which to obtain the parameters for track selection.

setParameters

fun setParameters(
    parametersBuilder: DefaultTrackSelector.ParametersBuilder!
): Unit

setParameters

fun setParameters(parameters: TrackSelectionParameters!): Unit

Called by the player to provide parameters for track selection.

Only supported if isSetParametersSupported returns true.

Parameters
`parameters: TrackSelectionParameters!`	The parameters for track selection.

Protected functions

getFormatLanguageScore

protected java-static fun getFormatLanguageScore(
    format: Format!,
    language: String?,
    allowUndeterminedFormatLanguage: Boolean
): Int

Returns a score for how well a language specified in a Format matches a given language.

Parameters
`format: Format!`	The `Format`.
`language: String?`	The language, or null.
`allowUndeterminedFormatLanguage: Boolean`	Whether matches with an empty or undetermined format language tag are allowed.

Returns
`Int`	A score of 4 if the languages match fully, a score of 3 if the languages match partly, a score of 2 if the languages don't match but belong to the same main language, a score of 1 if the format language is undetermined and such a match is allowed, and a score of 0 if the languages don't match at all.

isSupported

protected java-static fun isSupported(
    @RendererCapabilities.Capabilities formatSupport: Int,
    allowExceedsCapabilities: Boolean
): Boolean

normalizeUndeterminedLanguageToNull

protected java-static fun normalizeUndeterminedLanguageToNull(language: String?): String?

Normalizes the input string to null if it does not define a language, or returns it otherwise.

Parameters
`language: String?`	The string.

Returns
`String?`	The string, optionally normalized to null if it does not define a language.

selectAllTracks

protected fun selectAllTracks(
    mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!,
    @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!,
    @RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupports: IntArray!,
    params: DefaultTrackSelector.Parameters!
): Array<@NullableType ExoTrackSelection.Definition!>!

Called from selectTracks to make a track selection for each renderer, prior to overrides and disabled flags being applied.

The implementation should not account for overrides and disabled flags. Track selections generated by this method will be overridden to account for these properties.

If selection parameters include audioOffloadPreferences with audioOffloadMode set to AUDIO_OFFLOAD_MODE_REQUIRED then only audio tracks will be selected. If no audio track is supported in offload, then no track will be selected.

Parameters
`mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!`	Mapped track information.
`@RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!`	The `Capabilities` for each mapped track, indexed by renderer, track group and track (in that order).
`@RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupports: IntArray!`	The `AdaptiveSupport` for mixed MIME type adaptation for the renderer.
`params: DefaultTrackSelector.Parameters!`	The parameters to use for the track selection.

Returns
`Array<@NullableType ExoTrackSelection.Definition!>!`	The `ExoTrackSelection.Definition`s for the renderers. A null entry indicates no selection was made.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs while selecting the tracks.

selectAudioTrack

protected fun selectAudioTrack(
    mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!,
    @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!,
    @RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupports: IntArray!,
    params: DefaultTrackSelector.Parameters!
): Pair<ExoTrackSelection.Definition!, Int!>?

Called by selectAllTracks to create a ExoTrackSelection.Definition for an audio track selection.

Parameters
`mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!`	Mapped track information.
`@RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!`	The `Capabilities` for each mapped track, indexed by renderer, track group and track (in that order).
`@RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupports: IntArray!`	The `AdaptiveSupport` for mixed MIME type adaptation for the renderer.
`params: DefaultTrackSelector.Parameters!`	The selector's current constraint parameters.

Returns
`Pair<ExoTrackSelection.Definition!, Int!>?`	A pair of the selected `ExoTrackSelection.Definition` and the corresponding renderer index, or null if no selection was made.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs while selecting the tracks.

selectImageTrack

protected fun selectImageTrack(
    mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!,
    @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!,
    params: DefaultTrackSelector.Parameters!
): Pair<ExoTrackSelection.Definition!, Int!>?

Called by selectAllTracks to create a ExoTrackSelection.Definition for an image track selection.

Parameters
`mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!`	Mapped track information.
`@RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!`	The `Capabilities` for each mapped track, indexed by renderer, track group and track (in that order).
`params: DefaultTrackSelector.Parameters!`	The selector's current constraint parameters.

Returns
`Pair<ExoTrackSelection.Definition!, Int!>?`	A pair of the selected `ExoTrackSelection.Definition` and the corresponding renderer index, or null if no selection was made.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs while selecting the tracks.

selectOtherTrack

protected fun selectOtherTrack(
    trackType: Int,
    groups: TrackGroupArray!,
    @RendererCapabilities.Capabilities formatSupport: Array<IntArray!>!,
    params: DefaultTrackSelector.Parameters!
): ExoTrackSelection.Definition?

Called by selectAllTracks to create a ExoTrackSelection for a renderer whose type is neither video, audio or text.

Parameters
`trackType: Int`	The type of the renderer.
`groups: TrackGroupArray!`	The `TrackGroupArray` mapped to the renderer.
`@RendererCapabilities.Capabilities formatSupport: Array<IntArray!>!`	The `Capabilities` for each mapped track, indexed by track group and track (in that order).
`params: DefaultTrackSelector.Parameters!`	The selector's current constraint parameters.

Returns
`ExoTrackSelection.Definition?`	The `ExoTrackSelection` for the renderer, or null if no selection was made.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs while selecting the tracks.

selectTextTrack

protected fun selectTextTrack(
    mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!,
    @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!,
    params: DefaultTrackSelector.Parameters!,
    selectedAudioLanguage: String?
): Pair<ExoTrackSelection.Definition!, Int!>?

Called by selectAllTracks to create a ExoTrackSelection.Definition for a text track selection.

Parameters
`mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!`	Mapped track information.
`@RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!`	The `Capabilities` for each mapped track, indexed by renderer, track group and track (in that order).
`params: DefaultTrackSelector.Parameters!`	The selector's current constraint parameters.
`selectedAudioLanguage: String?`	The language of the selected audio track. May be null if the selected audio track declares no language or no audio track was selected.

Returns
`Pair<ExoTrackSelection.Definition!, Int!>?`	A pair of the selected `ExoTrackSelection.Definition` and the corresponding renderer index, or null if no selection was made.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs while selecting the tracks.

selectTracks

protected fun selectTracks(
    mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!,
    @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!,
    @RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupport: IntArray!,
    mediaPeriodId: MediaSource.MediaPeriodId!,
    timeline: Timeline!
): Pair<Array<@NullableType RendererConfiguration!>!, Array<@NullableType ExoTrackSelection!>!>!

Given mapped track information, returns a track selection and configuration for each renderer.

Parameters
`mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!`	Mapped track information.
`@RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!`	The `Capabilities` for each mapped track, indexed by renderer, track group and track (in that order).
`@RendererCapabilities.AdaptiveSupport rendererMixedMimeTypeAdaptationSupport: IntArray!`	The `AdaptiveSupport` for mixed MIME type adaptation for the renderer.
`mediaPeriodId: MediaSource.MediaPeriodId!`	The `MediaPeriodId` of the period for which tracks are to be selected.
`timeline: Timeline!`	The `Timeline` holding the period for which tracks are to be selected.

Returns
`Pair<Array<@NullableType RendererConfiguration!>!, Array<@NullableType ExoTrackSelection!>!>!`	A pair consisting of the track selections and configurations for each renderer. A null configuration indicates the renderer should be disabled, in which case the track selection must also be null. A track selection may also be null for a non-disabled renderer if `getTrackType` is `TRACK_TYPE_NONE`.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs while selecting the tracks.

selectVideoTrack

protected fun selectVideoTrack(
    mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!,
    @RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!,
    @RendererCapabilities.AdaptiveSupport mixedMimeTypeSupports: IntArray!,
    params: DefaultTrackSelector.Parameters!
): Pair<ExoTrackSelection.Definition!, Int!>?

Called by selectAllTracks to create a ExoTrackSelection.Definition for a video track selection.

Parameters
`mappedTrackInfo: MappingTrackSelector.MappedTrackInfo!`	Mapped track information.
`@RendererCapabilities.Capabilities rendererFormatSupports: Array<Array<IntArray!>!>!`	The `Capabilities` for each mapped track, indexed by renderer, track group and track (in that order).
`@RendererCapabilities.AdaptiveSupport mixedMimeTypeSupports: IntArray!`	The `AdaptiveSupport` for mixed MIME type adaptation for the renderer.
`params: DefaultTrackSelector.Parameters!`	The selector's current constraint parameters.

Returns
`Pair<ExoTrackSelection.Definition!, Int!>?`	A pair of the selected `ExoTrackSelection.Definition` and the corresponding renderer index, or null if no selection was made.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs while selecting the tracks.

Public properties

context

val context: Context?

parameters

@GuardedBy(value = "lock")
val parameters: DefaultTrackSelector.Parameters!

DefaultTrackSelector

Modifying parameters

Summary

Nested types

Constants

Public constructors

Public functions

Protected functions

Public properties

Inherited functions

Inherited properties

Constants

SELECTION_ELIGIBILITY_ADAPTIVE

SELECTION_ELIGIBILITY_FIXED

SELECTION_ELIGIBILITY_NO

Public constructors

DefaultTrackSelector

DefaultTrackSelector

DefaultTrackSelector

DefaultTrackSelector

DefaultTrackSelector

Public functions

buildUponParameters

getRendererCapabilitiesListener

isSetParametersSupported

onRendererCapabilitiesChanged

release

setAudioAttributes

setParameters

setParameters

setParameters

Protected functions

getFormatLanguageScore

isSupported

normalizeUndeterminedLanguageToNull

selectAllTracks

selectAudioTrack

selectImageTrack

selectOtherTrack

selectTextTrack

selectTracks

selectVideoTrack

Public properties

context

parameters