CompositionPlayer


@ExperimentalApi
public final class CompositionPlayer extends SimpleBasePlayer


A Player implementation that plays compositions of media assets. The Composition specifies how the assets should be arranged, and the audio and video effects to apply to them.

CompositionPlayer instances must be accessed from a single application thread. For the vast majority of cases this should be the application's main thread. The thread on which a CompositionPlayer instance must be accessed can be explicitly specified by passing a Looper when creating the player. If no Looper is specified, then the Looper of the thread that the player is created on is used, or if that thread does not have a Looper, the Looper of the application's main thread is used. In all cases the Looper of the thread from which the player must be accessed can be queried using getApplicationLooper.

This player only supports setting the repeat mode as all of the Composition, or off.

Summary

Nested types

public final class CompositionPlayer.Builder

A builder for CompositionPlayer instances.

Public fields

final Clock

Public methods

void

Adds an AnalyticsListener to receive analytics events.

void

Forces the effect pipeline to redraw the effects immediately.

Clock

Returns the Clock used for playback.

@Nullable Looper

Returns the Looper associated with the playback thread or null if the internal player has not been prepared.

boolean

Returns whether the player is optimized for scrubbing (many frequent seeks).

void

Removes an AnalyticsListener.

void

Sets the Composition to play from the beginning.

void
setComposition(
    Composition composition,
    @IntRange(from = 0) long startPositionMs
)

Sets the Composition to play.

void
setScrubbingModeEnabled(boolean scrubbingModeEnabled)

Sets whether to optimize the player for scrubbing (many frequent seeks).

void
setVideoFrameMetadataListener(
    VideoFrameMetadataListener videoFrameMetadataListener
)

Sets the VideoFrameMetadataListener.

void
setVideoSurface(Surface surface, Size videoOutputSize)

Sets the Surface and Size to render to.

Protected methods

SimpleBasePlayer.State

Returns the current State of the player.

ListenableFuture<Object>

Handles calls to clear the video output.

ListenableFuture<Object>

Handles calls to prepare.

ListenableFuture<Object>

Handles calls to release.

ListenableFuture<Object>
handleSeek(
    int mediaItemIndex,
    long positionMs,
    @Player.Command int seekCommand
)

Handles calls to seekTo and other seek operations (for example, seekToNext).

ListenableFuture<Object>
handleSetAudioAttributes(
    AudioAttributes audioAttributes,
    boolean handleAudioFocus
)

Handles calls to set the audio attributes.

ListenableFuture<Object>
handleSetPlayWhenReady(boolean playWhenReady)

Handles calls to setPlayWhenReady, play and pause.

ListenableFuture<Object>

Handles calls to setRepeatMode.

ListenableFuture<Object>

Handles calls to set the video output.

ListenableFuture<Object>
handleSetVolume(
    float volume,
    @C.VolumeOperationType int volumeOperationType
)

Handles calls to setVolume.

ListenableFuture<Object>

Handles calls to stop.

Inherited Constants

From androidx.media3.common.Player
static final int

This field is deprecated.

Use COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS instead.

static final int

Command to increase and decrease the device volume and mute it with volume flags.

static final int

Command to change the media items in the playlist.

static final int

Command to get the player current AudioAttributes.

static final int

Command to get information about the currently playing MediaItem.

static final int

Command to get the device volume and whether it is muted.

static final int

This field is deprecated.

Use COMMAND_GET_METADATA instead.

static final int

Command to get metadata related to the playlist and current MediaItem.

static final int

Command to get the text that should currently be displayed by the player.

static final int

Command to get the information about the current timeline.

static final int

Command to get details of the current track selection.

static final int

Command to get the player volume.

static final int

Represents an invalid Command.

static final int

Command to start, pause or resume playback.

static final int

Command to prepare the player.

static final int

Command to release the player.

static final int

Command to seek back by a fixed increment inside the current MediaItem.

static final int

Command to seek forward by a fixed increment inside the current MediaItem.

static final int

Command to seek anywhere inside the current MediaItem.

static final int

This field is deprecated.

Use COMMAND_SEEK_IN_CURRENT_MEDIA_ITEM instead.

static final int

Command to seek to the default position of the current MediaItem.

static final int

Command to seek anywhere in any MediaItem.

static final int

Command to seek to a later position in the current MediaItem or the default position of the next MediaItem.

static final int

Command to seek to the default position of the next MediaItem.

static final int

This field is deprecated.

Use COMMAND_SEEK_TO_NEXT_MEDIA_ITEM instead.

static final int

Command to seek to an earlier position in the current MediaItem or the default position of the previous MediaItem.

static final int

Command to seek to the default position of the previous MediaItem.

static final int

This field is deprecated.

Use COMMAND_SEEK_TO_PREVIOUS_MEDIA_ITEM instead.

static final int

This field is deprecated.

Use COMMAND_SEEK_TO_MEDIA_ITEM instead.

static final int

Command to set the player's audio attributes.

static final int

This field is deprecated.

Use COMMAND_SET_DEVICE_VOLUME_WITH_FLAGS instead.

static final int

Command to set the device volume with volume flags.

static final int

Command to set a MediaItem.

static final int

This field is deprecated.

Use COMMAND_SET_PLAYLIST_METADATA instead.

static final int

Command to set the playlist metadata.

static final int

Command to set the repeat mode.

static final int

Command to enable shuffling.

static final int

Command to set the playback speed and pitch.

static final int

Command to set the player's track selection parameters.

static final int

Command to set and clear the surface on which to render the video.

static final int

Command to set the player volume.

static final int

Command to stop playback.

static final int

Automatic playback transition from one period in the timeline to the next.

static final int

Discontinuity introduced internally (e.g. by the source).

static final int

Discontinuity caused by the removal of the current period from the Timeline.

static final int

Seek within the current period or to another period.

static final int

Seek adjustment due to being unable to seek to the requested position or because the seek was permitted to be inexact.

static final int

Discontinuity introduced by a skipped silence.

static final int

Discontinuity introduced by a skipped period (for instance a skipped ad).

static final int

getAudioAttributes changed.

static final int

The audio session id was set.

static final int

isCommandAvailable changed for at least one Command.

static final int

getCurrentCues changed.

static final int

getDeviceInfo changed.

static final int

getDeviceVolume or isDeviceMuted changed.

static final int

isLoading ()} changed.

static final int

isPlaying changed.

static final int

getMaxSeekToPreviousPosition changed.

static final int

getCurrentMediaItem changed or the player started repeating the current item.

static final int

getMediaMetadata changed.

static final int

Metadata associated with the current playback time changed.

static final int

getPlaybackParameters changed.

static final int

getPlaybackState changed.

static final int

getPlaybackSuppressionReason changed.

static final int

getPlayerError changed.

static final int

getPlaylistMetadata changed.

static final int

getPlayWhenReady changed.

static final int

A position discontinuity occurred.

static final int

A frame is rendered for the first time since setting the surface, or since the renderer was reset, or since the stream being rendered was changed.

static final int

getRepeatMode changed.

static final int

getSeekBackIncrement changed.

static final int

getSeekForwardIncrement changed.

static final int

getShuffleModeEnabled changed.

static final int

Skipping silences in the audio stream is enabled or disabled.

static final int

The size of the surface onto which the video is being rendered changed.

static final int

getCurrentTimeline changed.

static final int

getCurrentTracks changed.

static final int

getTrackSelectionParameters changed.

static final int

getVideoSize changed.

static final int

getVolume changed.

static final int

Playback has automatically transitioned to the next media item.

static final int

The current media item has changed because of a change in the playlist.

static final int

The media item has been repeated.

static final int

A seek to another media item has occurred.

static final int

Playback is not suppressed.

static final int

Playback is suppressed because the player is currently scrubbing.

static final int

Playback is suppressed due to transient audio focus loss.

static final int

Playback is suppressed due to attempt to play on an unsuitable audio output (e.g. attempt to play on built-in speaker on a Wear OS device).

static final int

This field is deprecated.

Use PLAYBACK_SUPPRESSION_REASON_UNSUITABLE_AUDIO_OUTPUT instead.

static final int

Playback has been paused to avoid becoming noisy.

static final int

Playback has been paused because of a loss of audio focus.

static final int

Playback has been paused at the end of a media item.

static final int

Playback has been started or paused because of a remote change.

static final int

Playback has been paused because playback has been suppressed too long.

static final int

Playback has been started or paused by a call to setPlayWhenReady.

static final int

Repeats the entire timeline infinitely.

static final int

Normal playback without repetition.

static final int

Repeats the currently playing MediaItem infinitely during ongoing playback.

static final int

The player is not able to immediately play the media, but is doing work toward being able to do so.

static final int

The player has finished playing the media.

static final int

The player is idle, meaning it holds only limited resources.

static final int

The player is able to immediately play from its current position.

static final int

Timeline changed as a result of a change of the playlist items or the order of the items.

static final int

Timeline changed as a result of a source update (e.g. result of a dynamic update by the played media).

Inherited methods

From androidx.media3.common.BasePlayer
final void

Adds a media item to the end of the playlist.

final void
addMediaItem(int index, MediaItem mediaItem)

Adds a media item at the given index of the playlist.

final void

Adds a list of media items to the end of the playlist.

final boolean

Returns whether the player can be used to advertise a media session.

final void

Clears the playlist.

final int

Returns an estimate of the percentage in the current content or ad up to which data is buffered, or 0 if no estimate is available.

final long

If isPlayingAd returns true, returns the duration of the current content in milliseconds, or TIME_UNSET if the duration is not known.

final long

Returns the offset of the current playback position from the live edge in milliseconds, or TIME_UNSET if the current MediaItemisn't live or the offset is unknown.

final @Nullable Object

Returns the current manifest.

final @Nullable MediaItem

Returns the currently playing MediaItem.

final int

This method is deprecated.

Use getCurrentMediaItemIndex instead.

final MediaItem
getMediaItemAt(int index)

Returns the MediaItem at the given index.

final int

Returns the number of media items in the playlist.

final int

Returns the index of the MediaItem that will be played if seekToNextMediaItem is called, which may depend on the current repeat mode and whether shuffle mode is enabled.

final int

This method is deprecated.

Use getNextMediaItemIndex instead.

final int

Returns the index of the MediaItem that will be played if seekToPreviousMediaItem is called, which may depend on the current repeat mode and whether shuffle mode is enabled.

final int

This method is deprecated.

Use getPreviousMediaItemIndex instead.

final boolean

Returns whether a next MediaItem exists, which may depend on the current repeat mode and whether shuffle mode is enabled.

final boolean

Returns whether a previous media item exists, which may depend on the current repeat mode and whether shuffle mode is enabled.

final boolean

Returns whether the provided Command is available.

final boolean

Returns whether the current MediaItem is dynamic (may change when the Timeline is updated), or false if the Timeline is empty.

final boolean

Returns whether the current MediaItem is live, or false if the Timeline is empty.

final boolean

Returns whether the current MediaItem is seekable, or false if the Timeline is empty.

final boolean

This method is deprecated.

Use isCurrentMediaItemDynamic instead.

final boolean

This method is deprecated.

Use isCurrentMediaItemLive instead.

final boolean

This method is deprecated.

Use isCurrentMediaItemSeekable instead.

final boolean

Returns whether the player is playing, i.e. getCurrentPosition is advancing.

final void
moveMediaItem(int currentIndex, int newIndex)

Moves the media item at the current index to the new index.

final void

Pauses playback.

final void

Resumes playback as soon as getPlaybackState == STATE_READY.

final void
removeMediaItem(int index)

Removes the media item at the given index of the playlist.

final void
replaceMediaItem(int index, MediaItem mediaItem)

Replaces the media item at the given index of the playlist.

final void

Seeks back in the current MediaItem by getSeekBackIncrement milliseconds.

final void

Seeks forward in the current MediaItem by getSeekForwardIncrement milliseconds.

final void
seekTo(long positionMs)

Seeks to a position specified in milliseconds in the current MediaItem.

final void
seekTo(int mediaItemIndex, long positionMs)

Seeks to a position specified in milliseconds in the specified MediaItem.

final void

Seeks to the default position associated with the current MediaItem.

final void
seekToDefaultPosition(int mediaItemIndex)

Seeks to the default position associated with the specified MediaItem.

final void

Seeks to a later position in the current or next MediaItem (if available).

final void

Seeks to the default position of the next MediaItem, which may depend on the current repeat mode and whether shuffle mode is enabled.

final void

Seeks to an earlier position in the current or previous MediaItem (if available).

final void

Seeks to the default position of the previous MediaItem, which may depend on the current repeat mode and whether shuffle mode is enabled.

final void

Clears the playlist, adds the specified MediaItem and resets the position to the default position.

final void
setMediaItem(MediaItem mediaItem, boolean resetPosition)

Clears the playlist and adds the specified MediaItem.

final void
setMediaItem(MediaItem mediaItem, long startPositionMs)

Clears the playlist and adds the specified MediaItem.

final void

Clears the playlist, adds the specified media items and resets the position to the default position.

final void
setPlaybackSpeed(float speed)

Changes the rate at which playback occurs.

From androidx.media3.common.Player
abstract void
setDeviceVolume(@IntRange(from = 0) int volume)

This method is deprecated.

Use setDeviceVolume instead.

abstract void
setDeviceVolume(@IntRange(from = 0) int volume, @C.VolumeFlags int flags)

Sets the volume of the device with volume flags.

abstract void
setMediaItems(
    List<MediaItem> mediaItems,
    int startIndex,
    long startPositionMs
)

Clears the playlist and adds the specified media items.

abstract void
setPlaybackSpeed(@FloatRange(from = 0, fromInclusive = false) float speed)

Changes the rate at which playback occurs.

abstract void

Sets the RepeatMode to be used for playback.

abstract void
setVolume(@FloatRange(from = 0, to = 1.0) float volume)

Sets the audio volume, valid values are between 0 (silence) and 1 (unity gain, signal unchanged), inclusive.

From androidx.media3.common.SimpleBasePlayer
final void

Registers a listener to receive all events from the player.

final void
addMediaItems(int index, List<MediaItem> mediaItems)

Adds a list of media items at the given index of the playlist.

final void

Clears any Surface, SurfaceHolder, SurfaceView or TextureView currently set on the player.

final void

Clears the Surface onto which video is being rendered if it matches the one passed.

final void

Clears the SurfaceHolder that holds the Surface onto which video is being rendered if it matches the one passed.

final void

Clears the SurfaceView onto which video is being rendered if it matches the one passed.

final void

Clears the TextureView onto which video is being rendered if it matches the one passed.

final void

This method is deprecated.

Use decreaseDeviceVolume instead.

final void

Decreases the volume of the device.

final Looper

Returns the Looper associated with the application thread that's used to access the player and on which player events are received.

final AudioAttributes

Returns the attributes for audio playback.

final int

Returns the audio session identifier, or AUDIO_SESSION_ID_UNSET if not set.

final Player.Commands

Returns the player's currently available Commands.

final long

Returns an estimate of the position in the current content or ad up to which data is buffered, in milliseconds.

final long

If isPlayingAd returns true, returns an estimate of the content position in the current content up to which data is buffered, in milliseconds.

final long

If isPlayingAd returns true, returns the content position that will be played once all ads in the ad group have finished playing, in milliseconds.

final int

If isPlayingAd returns true, returns the index of the ad group in the period currently being played.

final int

If isPlayingAd returns true, returns the index of the ad in its ad group.

final CueGroup

Returns the current CueGroup.

final int

Returns the index of the current MediaItem in the timeline, or the prospective index if the current timeline is empty.

final int

Returns the index of the period currently being played.

final long

Returns the playback position in the current content or ad, in milliseconds, or the prospective position in milliseconds if the current timeline is empty.

final Timeline

Returns the current Timeline.

final Tracks

Returns the current tracks.

final DeviceInfo

Gets the device information.

final int

Gets the current volume of the device.

final long

Returns the duration of the current content or ad in milliseconds, or TIME_UNSET if the duration is not known.

final long

Returns the maximum position for which seekToPrevious seeks to the previous MediaItem, in milliseconds.

final MediaMetadata

Returns the current combined MediaMetadata, or EMPTY if not supported.

SimpleBasePlayer.MediaItemData

Returns the placeholder MediaItemData used for a new MediaItem added to the playlist.

SimpleBasePlayer.State

Returns the placeholder state used while a player method is handled asynchronously.

final boolean

Whether playback will proceed when getPlaybackState == STATE_READY.

final PlaybackParameters

Returns the currently active playback parameters.

final int

Returns the current playback state of the player.

final int

Returns the reason why playback is suppressed even though getPlayWhenReady is true, or PLAYBACK_SUPPRESSION_REASON_NONE if playback is not suppressed.

final @Nullable PlaybackException

Returns the error that caused playback to fail.

final MediaMetadata

Returns the playlist MediaMetadata, as set by setPlaylistMetadata, or EMPTY if not supported.

final int

Returns the current RepeatMode used for playback.

final long

Returns the seekBack increment.

final long

Returns the seekForward increment.

final boolean

Returns whether shuffling of media items is enabled.

final Size

Gets the size of the surface on which the video is rendered.

final long

Returns an estimate of the total buffered duration from the current position, in milliseconds.

final TrackSelectionParameters

Returns the parameters constraining the track selection.

final VideoSize

Gets the size of the video.

final float

Returns the audio volume, with 0 being silence and 1 being unity gain (signal unchanged).

ListenableFuture<Object>
@ForOverride
handleAddMediaItems(int index, List<MediaItem> mediaItems)

Handles calls to addMediaItem and addMediaItems.

ListenableFuture<Object>

Handles calls to decreaseDeviceVolume and decreaseDeviceVolume.

ListenableFuture<Object>

Handles calls to increaseDeviceVolume and increaseDeviceVolume.

ListenableFuture<Object>
@ForOverride
handleMoveMediaItems(int fromIndex, int toIndex, int newIndex)

Handles calls to moveMediaItem and moveMediaItems.

ListenableFuture<Object>
@ForOverride
handleRemoveMediaItems(int fromIndex, int toIndex)

Handles calls to removeMediaItem and removeMediaItems.

ListenableFuture<Object>
@ForOverride
handleReplaceMediaItems(
    int fromIndex,
    int toIndex,
    List<MediaItem> mediaItems
)

Handles calls to replaceMediaItem and replaceMediaItems.

ListenableFuture<Object>
@ForOverride
handleSetDeviceMuted(boolean muted, @C.VolumeFlags int flags)

Handles calls to setDeviceMuted and setDeviceMuted.

ListenableFuture<Object>
@ForOverride
handleSetDeviceVolume(
    @IntRange(from = 0) int deviceVolume,
    @C.VolumeFlags int flags
)

Handles calls to setDeviceVolume and setDeviceVolume.

ListenableFuture<Object>
@ForOverride
handleSetMediaItems(
    List<MediaItem> mediaItems,
    int startIndex,
    long startPositionMs
)

Handles calls to setMediaItem and setMediaItems.

ListenableFuture<Object>

Handles calls to setPlaybackParameters or setPlaybackSpeed.

ListenableFuture<Object>

Handles calls to setPlaylistMetadata.

ListenableFuture<Object>
@ForOverride
handleSetShuffleModeEnabled(boolean shuffleModeEnabled)

Handles calls to setShuffleModeEnabled.

ListenableFuture<Object>

Handles calls to setTrackSelectionParameters.

ListenableFuture<Object>
@ForOverride
handleSetVolume(@FloatRange(from = 0, to = 1.0) float volume)

This method is deprecated.

Use handleSetVolume instead.

final void

This method is deprecated.

Use increaseDeviceVolume instead.

final void

Increases the volume of the device.

final void

Invalidates the current state.

final boolean

Gets whether the device is muted or not.

final boolean

Whether the player is currently loading the source.

final boolean

Returns whether the player is currently playing an ad.

final void
moveMediaItems(int fromIndex, int toIndex, int newIndex)

Moves the media item range to the new index.

final void

Sets the audio volume to 0.

final void

Prepares the player.

final void

Releases the player.

final void

Unregister a listener registered through addListener.

final void
removeMediaItems(int fromIndex, int toIndex)

Removes a range of media items from the playlist.

final void
replaceMediaItems(
    int fromIndex,
    int toIndex,
    List<MediaItem> mediaItems
)

Replaces the media items at the given range of the playlist.

final void
seekTo(
    int mediaItemIndex,
    long positionMs,
    @Player.Command int seekCommand,
    boolean isRepeatingCurrentItem
)

Seeks to a position in the specified MediaItem.

final void
setAudioAttributes(
    AudioAttributes audioAttributes,
    boolean handleAudioFocus
)

Sets the attributes for audio playback, used by the underlying audio track.

final void
setDeviceMuted(boolean muted)

This method is deprecated.

Use setDeviceMuted instead.

final void
setDeviceMuted(boolean muted, @C.VolumeFlags int flags)

Sets the mute state of the device.

final void
setDeviceVolume(int volume)

This method is deprecated.

Use setDeviceVolume instead.

final void
setDeviceVolume(int volume, @C.VolumeFlags int flags)

Sets the volume of the device with volume flags.

final void
setMediaItems(List<MediaItem> mediaItems, boolean resetPosition)

Clears the playlist and adds the specified media items.

final void
setMediaItems(
    List<MediaItem> mediaItems,
    int startIndex,
    long startPositionMs
)

Clears the playlist and adds the specified media items.

final void
setPlayWhenReady(boolean playWhenReady)

Sets whether playback should proceed when getPlaybackState == STATE_READY.

final void

Attempts to set the playback parameters.

final void

Sets the playlist MediaMetadata.

final void

Sets the RepeatMode to be used for playback.

final void
setShuffleModeEnabled(boolean shuffleModeEnabled)

Sets whether shuffling of media items is enabled.

final void

Sets the parameters constraining the track selection.

final void

Sets the Surface onto which video will be rendered.

final void

Sets the SurfaceHolder that holds the Surface onto which video will be rendered.

final void

Sets the SurfaceView onto which video will be rendered.

final void

Sets the TextureView onto which video will be rendered.

final void
setVolume(float volume)

Sets the audio volume, valid values are between 0 (silence) and 1 (unity gain, signal unchanged), inclusive.

final void

Stops playback without resetting the playlist.

final void

If the audio volume is 0, sets the audio volume to a non-zero value decided by the Player to be the most appropriate.

final void

Throws an IllegalStateException if the the thread calling this method does not match the Looper thread that was specified upon construction of this instance.

Public fields

clock

public final Clock clock

Public methods

addAnalyticsListener

public void addAnalyticsListener(AnalyticsListener listener)

Adds an AnalyticsListener to receive analytics events.

This method can be called from any thread.

Parameters
AnalyticsListener listener

The listener to be added.

experimentalRedrawLastFrame

public void experimentalRedrawLastFrame()

Forces the effect pipeline to redraw the effects immediately.

The player must be built with replayable cache support.

getClock

public Clock getClock()

Returns the Clock used for playback.

This method can be called from any thread.

getPlaybackLooper

public @Nullable Looper getPlaybackLooper()

Returns the Looper associated with the playback thread or null if the internal player has not been prepared.

This method may be called from any thread.

isScrubbingModeEnabled

public boolean isScrubbingModeEnabled()

Returns whether the player is optimized for scrubbing (many frequent seeks).

See setScrubbingModeEnabled.

removeAnalyticsListener

public void removeAnalyticsListener(AnalyticsListener listener)

Removes an AnalyticsListener.

Parameters
AnalyticsListener listener

The listener to be removed.

setComposition

public void setComposition(Composition composition)

Sets the Composition to play from the beginning.

Calling this method is equivalent to calling setComposition with a start position at zero.

Parameters
Composition composition

The Composition to play. Every EditedMediaItem in the Composition must have its durationUs set.

setComposition

public void setComposition(
    Composition composition,
    @IntRange(from = 0) long startPositionMs
)

Sets the Composition to play.

Parameters
Composition composition

The Composition to play. Every EditedMediaItem in the Composition must have its durationUs set.

@IntRange(from = 0) long startPositionMs

The position at which playback should start, in milliseconds.

setScrubbingModeEnabled

public void setScrubbingModeEnabled(boolean scrubbingModeEnabled)

Sets whether to optimize the player for scrubbing (many frequent seeks).

The player may consume more resources in this mode, so it should only be used for short periods of time in response to user interaction (e.g. dragging on a progress bar UI element).

During scrubbing mode playback is suppressed with PLAYBACK_SUPPRESSION_REASON_SCRUBBING.

Parameters
boolean scrubbingModeEnabled

Whether scrubbing mode should be enabled.

setVideoFrameMetadataListener

public void setVideoFrameMetadataListener(
    VideoFrameMetadataListener videoFrameMetadataListener
)

Sets the VideoFrameMetadataListener.

setVideoSurface

public void setVideoSurface(Surface surface, Size videoOutputSize)

Sets the Surface and Size to render to.

Protected methods

getState

protected SimpleBasePlayer.State getState()

Returns the current State of the player.

The State should include all available commands indicating which player methods are allowed to be called.

Note that this method won't be called while asynchronous handling of player methods is in progress. This means that the implementation doesn't need to handle state changes caused by these asynchronous operations until they are done and can return the currently known state directly. The placeholder state used while these asynchronous operations are in progress can be customized by overriding getPlaceholderState if required.

handleClearVideoOutput

protected ListenableFuture<ObjecthandleClearVideoOutput(@Nullable Object videoOutput)

Handles calls to clear the video output.

Will only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
@Nullable Object videoOutput

The video output to clear. If null any current output should be cleared. If non-null, the output should only be cleared if it matches the provided argument. This is either a Surface, SurfaceHolder, TextureView or SurfaceView.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handlePrepare

protected ListenableFuture<ObjecthandlePrepare()

Handles calls to prepare.

Will only be called if COMMAND_PREPARE is available.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleRelease

protected ListenableFuture<ObjecthandleRelease()

Handles calls to release.

Will only be called if COMMAND_RELEASE is available.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleSeek

protected ListenableFuture<ObjecthandleSeek(
    int mediaItemIndex,
    long positionMs,
    @Player.Command int seekCommand
)

Handles calls to seekTo and other seek operations (for example, seekToNext).

Will only be called if the appropriate Player.Command, for example COMMAND_SEEK_TO_MEDIA_ITEM or COMMAND_SEEK_TO_NEXT, is available.

Parameters
int mediaItemIndex

The media item index to seek to. If the original seek operation did not directly specify an index, this is the most likely implied index based on the available player state. If the implied action is to do nothing, this will be INDEX_UNSET.

long positionMs

The position in milliseconds to start playback from, or TIME_UNSET to start at the default position in the media item. If the original seek operation did not directly specify a position, this is the most likely implied position based on the available player state.

@Player.Command int seekCommand

The Player.Command used to trigger the seek.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleSetAudioAttributes

protected ListenableFuture<ObjecthandleSetAudioAttributes(
    AudioAttributes audioAttributes,
    boolean handleAudioFocus
)

Handles calls to set the audio attributes.

Will only be called if COMMAND_SET_AUDIO_ATTRIBUTES is available.

Parameters
AudioAttributes audioAttributes

The attributes to use for audio playback.

boolean handleAudioFocus

True if the player should handle audio focus, false otherwise.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleSetPlayWhenReady

protected ListenableFuture<ObjecthandleSetPlayWhenReady(boolean playWhenReady)

Handles calls to setPlayWhenReady, play and pause.

Will only be called if COMMAND_PLAY_PAUSE is available.

Parameters
boolean playWhenReady

The requested playWhenReady

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleSetRepeatMode

protected ListenableFuture<ObjecthandleSetRepeatMode(@Player.RepeatMode int repeatMode)

Handles calls to setRepeatMode.

Will only be called if COMMAND_SET_REPEAT_MODE is available.

Parameters
@Player.RepeatMode int repeatMode

The requested RepeatMode.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleSetVideoOutput

protected ListenableFuture<ObjecthandleSetVideoOutput(Object videoOutput)

Handles calls to set the video output.

Will only be called if COMMAND_SET_VIDEO_SURFACE is available.

Parameters
Object videoOutput

The requested video output. This is either a Surface, SurfaceHolder, TextureView or SurfaceView.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleSetVolume

protected ListenableFuture<ObjecthandleSetVolume(
    float volume,
    @C.VolumeOperationType int volumeOperationType
)

Handles calls to setVolume.

Will only be called if COMMAND_SET_VOLUME is available.

Parameters
float volume

The requested audio volume, with 0 being silence and 1 being unity gain (signal unchanged).

@C.VolumeOperationType int volumeOperationType

The C.VolumeOperationType that corresponds to the original command for changing of the volume.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.

handleStop

protected ListenableFuture<ObjecthandleStop()

Handles calls to stop.

Will only be called if COMMAND_STOP is available.

Returns
ListenableFuture<Object>

A ListenableFuture indicating the completion of all immediate State changes caused by this call.