Player

Artifact: androidx.media3:media3-common

View Source

---

Kotlin |Java

public interface Player

Known direct subclasses

BasePlayer, ExoPlayer, ForwardingPlayer, MediaController

BasePlayer	Abstract base Player which implements common implementation independent methods.
ExoPlayer	An extensible media player that plays MediaSources.
ForwardingPlayer	A Player that forwards method calls to another Player.
MediaController	A controller that interacts with a MediaSession, a MediaSessionService hosting a MediaSession, or a MediaLibraryService hosting a .

Known indirect subclasses

CastPlayer, ForwardingSimpleBasePlayer, MediaBrowser, SimpleBasePlayer, SimpleExoPlayer, StubExoPlayer, StubPlayer

CastPlayer	Player implementation that communicates with a Cast receiver app.
ForwardingSimpleBasePlayer	A SimpleBasePlayer that forwards all calls to another Player instance.
MediaBrowser	Browses media content offered by a MediaLibraryService in addition to the functions.
SimpleBasePlayer	A base implementation for Player that reduces the number of methods to implement to a minimum.
SimpleExoPlayer	This class is deprecated. Use ExoPlayer instead.
StubExoPlayer	An abstract ExoPlayer implementation that throws UnsupportedOperationException from every method.
StubPlayer	An abstract Player implementation that throws UnsupportedOperationException from every method.

---

A media player interface defining high-level functionality, such as the ability to play, pause, seek and query properties of the currently playing media.

Player features and usage

Some important properties of media players that implement this interface are:

• All methods must be called from a single application thread unless indicated otherwise. Callbacks in registered listeners are called on the same thread.
• The available functionality can be limited. Player instances provide a set of available commands to signal feature support and users of the interface must only call methods if the corresponding Command is available.
• Users can register Player.Listener callbacks that get informed about state changes.
• Player instances need to update the visible state immediately after each method call, even if the actual changes are handled on background threads or even other devices. This simplifies the usage for callers of methods as no asynchronous handling needs to be considered.
• Player instances can provide playlist operations, like 'set', 'add', 'remove', 'move' or 'replace' of MediaItem instances. The player can also support repeat modes and shuffling within this playlist. The player provides a representing the structure of the playlist and all its items, which can be obtained by calling getCurrentTimeline
• Player instances can provide seeking within the currently playing item and to other items, using the various seek... methods.
• Player instances can provide Tracks defining the currently available and selected tracks, which can be obtained by calling getCurrentTracks. Users can also modify track selection behavior by setting TrackSelectionParameters with setTrackSelectionParameters.
• Player instances can provide MediaMetadata about the currently playing item, which can be obtained by calling getMediaMetadata.
• Player instances can provide information about ads in its media structure, for example via isPlayingAd.
• Player instances can accept different types of video outputs, like SurfaceView or TextureView for video rendering.
• Player instances can handle playback speed, audio attributes, and audio volume.
• Player instances can provide information about the playback device, which may be remote, and allow to change the device's volume.

API stability guarantees

The majority of the Player interface and its related classes are part of the stable API that guarantees backwards-compatibility for users of the API. Only more advances use cases may need to rely on UnstableApi classes and methods that are subject to incompatible changes or even removal in a future release. Implementors of the Player interface are not covered by these API stability guarantees.

Player state

Users can listen to state changes by adding a Player.Listener with addListener.

The main elements of the overall player state are:

• Playlist
  • MediaItem instances can be added with methods like setMediaItem to define what the player will be playing.
  • The current playlist can be obtained via getCurrentTimeline and convenience methods like getMediaItemCount or getCurrentMediaItem.
  • With an empty playlist, the player can only be in STATE_IDLE or STATE_ENDED.
• Playback state
  • STATE_IDLE: This is the initial state, the state when the player is stopped, and when playback failed. The player will hold only limited resources in this state. prepare must be called to transition away from this state.
  • STATE_BUFFERING: The player is not able to immediately play from its current position. This mostly happens because more data needs to be loaded.
  • STATE_READY: The player is able to immediately play from its current position.
  • STATE_ENDED: The player finished playing all media, or there is no media to play.
• Play/Pause, playback suppression and isPlaying
  • playWhenReady: Indicates the user intention to play. It can be set with play or pause.
  • playback suppression: Defines a reason for which playback will be suppressed even if playWhenReady is true.
  • isPlaying: Whether the player is playing (that is, its position is advancing and media is being presented). This will only be true if playback state is STATE_READY, playWhenReady is true, and playback is not suppressed.
• Playback position
  • media item index: The index in the playlist.
  • ad insertion: Whether an inserted ad is playing and which ad group index and ad index in the group it belongs to
  • current position: The current position of the playback. This is the same as the content position unless an ad is playing, where this indicates the position in the inserted ad.

Note that there are no callbacks for normal playback progression, only for transitions between media items and other position discontinuities. Code that needs to monitor playback progress (for example, an UI progress bar) should query the current position in appropriate intervals.

Implementing the Player interface

Implementing the Player interface is complex, as the interface includes many convenience methods that need to provide a consistent state and behavior, requires correct handling of listeners and available commands, and expects immediate state changes even if methods are internally handled asynchronously. For this reason, implementations are advised to inherit that handles all of these complexities and provides a simpler integration point for implementors of the interface.

Summary

Nested types
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.Command Commands that indicate which method calls are currently permitted on a particular Player instance.
public final class Player.Commands A set of commands.
@UnstableApi public final class Player.Commands.Builder A builder for Commands instances.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.DiscontinuityReason Reasons for position discontinuities.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.Event Events that can be reported via onEvents.
public final class Player.Events A set of events.
public interface Player.Listener Listener for changes in a Player.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.MediaItemTransitionReason Reasons for media item transitions.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.PlayWhenReadyChangeReason Reasons for playWhenReady changes.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.PlaybackSuppressionReason Reason why playback is suppressed even though getPlayWhenReady is true.
public final class Player.PositionInfo Position info describing a playback position involved in a discontinuity.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.RepeatMode Repeat modes for playback.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.State Playback state.
@Documented @Retention(value = RetentionPolicy.SOURCE) @Target(value = ) @IntDef(value = ) public annotation Player.TimelineChangeReason Reasons for timeline changes.

Constants
default static final int	COMMAND_ADJUST_DEVICE_VOLUME = 26 This field is deprecated. Use COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS instead.
default static final int	COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS = 34 Command to increase and decrease the device volume and mute it with volume flags.
default static final int	COMMAND_CHANGE_MEDIA_ITEMS = 20 Command to change the media items in the playlist.
default static final int	COMMAND_GET_AUDIO_ATTRIBUTES = 21 Command to get the player current AudioAttributes.
default static final int	COMMAND_GET_CURRENT_MEDIA_ITEM = 16 Command to get information about the currently playing MediaItem.
default static final int	COMMAND_GET_DEVICE_VOLUME = 23 Command to get the device volume and whether it is muted.
default static final int	COMMAND_GET_MEDIA_ITEMS_METADATA = 18 This field is deprecated. Use COMMAND_GET_METADATA instead.
default static final int	COMMAND_GET_METADATA = 18 Command to get metadata related to the playlist and current MediaItem.
default static final int	COMMAND_GET_TEXT = 28 Command to get the text that should currently be displayed by the player.
default static final int	COMMAND_GET_TIMELINE = 17 Command to get the information about the current timeline.
default static final int	COMMAND_GET_TRACKS = 30 Command to get details of the current track selection.
default static final int	COMMAND_GET_VOLUME = 22 Command to get the player volume.
default static final int	COMMAND_INVALID = -1 Represents an invalid Command.
default static final int	COMMAND_PLAY_PAUSE = 1 Command to start, pause or resume playback.
default static final int	COMMAND_PREPARE = 2 Command to prepare the player.
default static final int	COMMAND_RELEASE = 32 Command to release the player.
default static final int	COMMAND_SEEK_BACK = 11 Command to seek back by a fixed increment inside the current MediaItem.
default static final int	COMMAND_SEEK_FORWARD = 12 Command to seek forward by a fixed increment inside the current MediaItem.
default static final int	COMMAND_SEEK_IN_CURRENT_MEDIA_ITEM = 5 Command to seek anywhere inside the current MediaItem.
default static final int	@UnstableApi COMMAND_SEEK_IN_CURRENT_WINDOW = 5 This field is deprecated. Use COMMAND_SEEK_IN_CURRENT_MEDIA_ITEM instead.
default static final int	COMMAND_SEEK_TO_DEFAULT_POSITION = 4 Command to seek to the default position of the current MediaItem.
default static final int	COMMAND_SEEK_TO_MEDIA_ITEM = 10 Command to seek anywhere in any MediaItem.
default static final int	COMMAND_SEEK_TO_NEXT = 9 Command to seek to a later position in the current MediaItem or the default position of the next MediaItem.
default static final int	COMMAND_SEEK_TO_NEXT_MEDIA_ITEM = 8 Command to seek to the default position of the next MediaItem.
default static final int	@UnstableApi COMMAND_SEEK_TO_NEXT_WINDOW = 8 This field is deprecated. Use COMMAND_SEEK_TO_NEXT_MEDIA_ITEM instead.
default static final int	COMMAND_SEEK_TO_PREVIOUS = 7 Command to seek to an earlier position in the current MediaItem or the default position of the previous MediaItem.
default static final int	COMMAND_SEEK_TO_PREVIOUS_MEDIA_ITEM = 6 Command to seek to the default position of the previous MediaItem.
default static final int	@UnstableApi COMMAND_SEEK_TO_PREVIOUS_WINDOW = 6 This field is deprecated. Use COMMAND_SEEK_TO_PREVIOUS_MEDIA_ITEM instead.
default static final int	@UnstableApi COMMAND_SEEK_TO_WINDOW = 10 This field is deprecated. Use COMMAND_SEEK_TO_MEDIA_ITEM instead.
default static final int	COMMAND_SET_AUDIO_ATTRIBUTES = 35 Command to set the player's audio attributes.
default static final int	COMMAND_SET_DEVICE_VOLUME = 25 This field is deprecated. Use COMMAND_SET_DEVICE_VOLUME_WITH_FLAGS instead.
default static final int	COMMAND_SET_DEVICE_VOLUME_WITH_FLAGS = 33 Command to set the device volume with volume flags.
default static final int	COMMAND_SET_MEDIA_ITEM = 31 Command to set a MediaItem.
default static final int	COMMAND_SET_MEDIA_ITEMS_METADATA = 19 This field is deprecated. Use COMMAND_SET_PLAYLIST_METADATA instead.
default static final int	COMMAND_SET_PLAYLIST_METADATA = 19 Command to set the playlist metadata.
default static final int	COMMAND_SET_REPEAT_MODE = 15 Command to set the repeat mode.
default static final int	COMMAND_SET_SHUFFLE_MODE = 14 Command to enable shuffling.
default static final int	COMMAND_SET_SPEED_AND_PITCH = 13 Command to set the playback speed and pitch.
default static final int	COMMAND_SET_TRACK_SELECTION_PARAMETERS = 29 Command to set the player's track selection parameters.
default static final int	COMMAND_SET_VIDEO_SURFACE = 27 Command to set and clear the surface on which to render the video.
default static final int	COMMAND_SET_VOLUME = 24 Command to set the player volume.
default static final int	COMMAND_STOP = 3 Command to stop playback.
default static final int	DISCONTINUITY_REASON_AUTO_TRANSITION = 0 Automatic playback transition from one period in the timeline to the next.
default static final int	DISCONTINUITY_REASON_INTERNAL = 5 Discontinuity introduced internally (e.g. by the source).
default static final int	DISCONTINUITY_REASON_REMOVE = 4 Discontinuity caused by the removal of the current period from the Timeline.
default static final int	DISCONTINUITY_REASON_SEEK = 1 Seek within the current period or to another period.
default static final int	DISCONTINUITY_REASON_SEEK_ADJUSTMENT = 2 Seek adjustment due to being unable to seek to the requested position or because the seek was permitted to be inexact.
default static final int	DISCONTINUITY_REASON_SILENCE_SKIP = 6 Discontinuity introduced by a skipped silence.
default static final int	DISCONTINUITY_REASON_SKIP = 3 Discontinuity introduced by a skipped period (for instance a skipped ad).
default static final int	EVENT_AUDIO_ATTRIBUTES_CHANGED = 20 getAudioAttributes changed.
default static final int	EVENT_AUDIO_SESSION_ID = 21 The audio session id was set.
default static final int	EVENT_AVAILABLE_COMMANDS_CHANGED = 13 isCommandAvailable changed for at least one Command.
default static final int	EVENT_CUES = 27 getCurrentCues changed.
default static final int	EVENT_DEVICE_INFO_CHANGED = 29 getDeviceInfo changed.
default static final int	EVENT_DEVICE_VOLUME_CHANGED = 30 getDeviceVolume changed.
default static final int	EVENT_IS_LOADING_CHANGED = 3 isLoading ()} changed.
default static final int	EVENT_IS_PLAYING_CHANGED = 7 isPlaying changed.
default static final int	EVENT_MAX_SEEK_TO_PREVIOUS_POSITION_CHANGED = 18 getMaxSeekToPreviousPosition changed.
default static final int	EVENT_MEDIA_ITEM_TRANSITION = 1 getCurrentMediaItem changed or the player started repeating the current item.
default static final int	EVENT_MEDIA_METADATA_CHANGED = 14 getMediaMetadata changed.
default static final int	EVENT_METADATA = 28 Metadata associated with the current playback time changed.
default static final int	EVENT_PLAYBACK_PARAMETERS_CHANGED = 12 getPlaybackParameters changed.
default static final int	EVENT_PLAYBACK_STATE_CHANGED = 4 getPlaybackState changed.
default static final int	EVENT_PLAYBACK_SUPPRESSION_REASON_CHANGED = 6 getPlaybackSuppressionReason changed.
default static final int	EVENT_PLAYER_ERROR = 10 getPlayerError changed.
default static final int	EVENT_PLAYLIST_METADATA_CHANGED = 15 getPlaylistMetadata changed.
default static final int	EVENT_PLAY_WHEN_READY_CHANGED = 5 getPlayWhenReady changed.
default static final int	EVENT_POSITION_DISCONTINUITY = 11 A position discontinuity occurred.
default static final int	EVENT_RENDERED_FIRST_FRAME = 26 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.
default static final int	EVENT_REPEAT_MODE_CHANGED = 8 getRepeatMode changed.
default static final int	EVENT_SEEK_BACK_INCREMENT_CHANGED = 16 getSeekBackIncrement changed.
default static final int	EVENT_SEEK_FORWARD_INCREMENT_CHANGED = 17 getSeekForwardIncrement changed.
default static final int	EVENT_SHUFFLE_MODE_ENABLED_CHANGED = 9 getShuffleModeEnabled changed.
default static final int	EVENT_SKIP_SILENCE_ENABLED_CHANGED = 23 Skipping silences in the audio stream is enabled or disabled.
default static final int	EVENT_SURFACE_SIZE_CHANGED = 24 The size of the surface onto which the video is being rendered changed.
default static final int	EVENT_TIMELINE_CHANGED = 0 getCurrentTimeline changed.
default static final int	EVENT_TRACKS_CHANGED = 2 getCurrentTracks changed.
default static final int	EVENT_TRACK_SELECTION_PARAMETERS_CHANGED = 19 getTrackSelectionParameters changed.
default static final int	EVENT_VIDEO_SIZE_CHANGED = 25 getVideoSize changed.
default static final int	EVENT_VOLUME_CHANGED = 22 getVolume changed.
default static final int	MEDIA_ITEM_TRANSITION_REASON_AUTO = 1 Playback has automatically transitioned to the next media item.
default static final int	MEDIA_ITEM_TRANSITION_REASON_PLAYLIST_CHANGED = 3 The current media item has changed because of a change in the playlist.
default static final int	MEDIA_ITEM_TRANSITION_REASON_REPEAT = 0 The media item has been repeated.
default static final int	MEDIA_ITEM_TRANSITION_REASON_SEEK = 2 A seek to another media item has occurred.
default static final int	PLAYBACK_SUPPRESSION_REASON_NONE = 0 Playback is not suppressed.
default static final int	PLAYBACK_SUPPRESSION_REASON_TRANSIENT_AUDIO_FOCUS_LOSS = 1 Playback is suppressed due to transient audio focus loss.
default static final int	PLAYBACK_SUPPRESSION_REASON_UNSUITABLE_AUDIO_OUTPUT = 3 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).
default static final int	PLAYBACK_SUPPRESSION_REASON_UNSUITABLE_AUDIO_ROUTE = 2 This field is deprecated. Use PLAYBACK_SUPPRESSION_REASON_UNSUITABLE_AUDIO_OUTPUT instead.
default static final int	PLAY_WHEN_READY_CHANGE_REASON_AUDIO_BECOMING_NOISY = 3 Playback has been paused to avoid becoming noisy.
default static final int	PLAY_WHEN_READY_CHANGE_REASON_AUDIO_FOCUS_LOSS = 2 Playback has been paused because of a loss of audio focus.
default static final int	PLAY_WHEN_READY_CHANGE_REASON_END_OF_MEDIA_ITEM = 5 Playback has been paused at the end of a media item.
default static final int	PLAY_WHEN_READY_CHANGE_REASON_REMOTE = 4 Playback has been started or paused because of a remote change.
default static final int	PLAY_WHEN_READY_CHANGE_REASON_SUPPRESSED_TOO_LONG = 6 Playback has been paused because playback has been suppressed too long.
default static final int	PLAY_WHEN_READY_CHANGE_REASON_USER_REQUEST = 1 Playback has been started or paused by a call to setPlayWhenReady.
default static final int	REPEAT_MODE_ALL = 2 Repeats the entire timeline infinitely.
default static final int	REPEAT_MODE_OFF = 0 Normal playback without repetition.
default static final int	REPEAT_MODE_ONE = 1 Repeats the currently playing MediaItem infinitely during ongoing playback.
default static final int	STATE_BUFFERING = 2 The player is not able to immediately play the media, but is doing work toward being able to do so.
default static final int	STATE_ENDED = 4 The player has finished playing the media.
default static final int	STATE_IDLE = 1 The player is idle, meaning it holds only limited resources.
default static final int	STATE_READY = 3 The player is able to immediately play from its current position.
default static final int	TIMELINE_CHANGE_REASON_PLAYLIST_CHANGED = 0 Timeline changed as a result of a change of the playlist items or the order of the items.
default static final int	TIMELINE_CHANGE_REASON_SOURCE_UPDATE = 1 Timeline changed as a result of a source update (e.g. result of a dynamic update by the played media).

Public methods
abstract void	addListener(Player.Listener listener) Registers a listener to receive all events from the player.
abstract void	addMediaItem(MediaItem mediaItem) Adds a media item to the end of the playlist.
abstract void	addMediaItem(int index, MediaItem mediaItem) Adds a media item at the given index of the playlist.
abstract void	addMediaItems(List<MediaItem> mediaItems) Adds a list of media items to the end of the playlist.
abstract void	addMediaItems(int index, List<MediaItem> mediaItems) Adds a list of media items at the given index of the playlist.
abstract boolean	canAdvertiseSession() Returns whether the player can be used to advertise a media session.
abstract void	clearMediaItems() Clears the playlist.
abstract void	clearVideoSurface() Clears any Surface, SurfaceHolder, SurfaceView or TextureView currently set on the player.
abstract void	clearVideoSurface(@Nullable Surface surface) Clears the Surface onto which video is being rendered if it matches the one passed.
abstract void	clearVideoSurfaceHolder(@Nullable SurfaceHolder surfaceHolder) Clears the SurfaceHolder that holds the Surface onto which video is being rendered if it matches the one passed.
abstract void	clearVideoSurfaceView(@Nullable SurfaceView surfaceView) Clears the SurfaceView onto which video is being rendered if it matches the one passed.
abstract void	clearVideoTextureView(@Nullable TextureView textureView) Clears the TextureView onto which video is being rendered if it matches the one passed.
abstract void	decreaseDeviceVolume() This method is deprecated. Use decreaseDeviceVolume instead.
abstract void	decreaseDeviceVolume(@C.VolumeFlags int flags) Decreases the volume of the device.
abstract Looper	getApplicationLooper() Returns the Looper associated with the application thread that's used to access the player and on which player events are received.
abstract AudioAttributes	getAudioAttributes() Returns the attributes for audio playback.
abstract Player.Commands	getAvailableCommands() Returns the player's currently available Commands.
abstract @IntRange(from = 0, to = 100) int	getBufferedPercentage() 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.
abstract long	getBufferedPosition() Returns an estimate of the position in the current content or ad up to which data is buffered, in milliseconds.
abstract long	getContentBufferedPosition() If isPlayingAd returns true, returns an estimate of the content position in the current content up to which data is buffered, in milliseconds.
abstract long	getContentDuration() If isPlayingAd returns true, returns the duration of the current content in milliseconds, or TIME_UNSET if the duration is not known.
abstract long	getContentPosition() If isPlayingAd returns true, returns the content position that will be played once all ads in the ad group have finished playing, in milliseconds.
abstract int	getCurrentAdGroupIndex() If isPlayingAd returns true, returns the index of the ad group in the period currently being played.
abstract int	getCurrentAdIndexInAdGroup() If isPlayingAd returns true, returns the index of the ad in its ad group.
abstract CueGroup	getCurrentCues() Returns the current CueGroup.
abstract long	getCurrentLiveOffset() 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.
abstract @Nullable Object	@UnstableApi getCurrentManifest() Returns the current manifest.
abstract @Nullable MediaItem	getCurrentMediaItem() Returns the currently playing MediaItem.
abstract int	getCurrentMediaItemIndex() Returns the index of the current MediaItem in the timeline, or the prospective index if the current timeline is empty.
abstract int	getCurrentPeriodIndex() Returns the index of the period currently being played.
abstract long	getCurrentPosition() Returns the playback position in the current content or ad, in milliseconds, or the prospective position in milliseconds if the current timeline is empty.
abstract Timeline	getCurrentTimeline() Returns the current Timeline.
abstract Tracks	getCurrentTracks() Returns the current tracks.
abstract int	@UnstableApi getCurrentWindowIndex() This method is deprecated. Use getCurrentMediaItemIndex instead.
abstract DeviceInfo	getDeviceInfo() Gets the device information.
abstract @IntRange(from = 0) int	getDeviceVolume() Gets the current volume of the device.
abstract long	getDuration() Returns the duration of the current content or ad in milliseconds, or TIME_UNSET if the duration is not known.
abstract long	getMaxSeekToPreviousPosition() Returns the maximum position for which seekToPrevious seeks to the previous , in milliseconds.
abstract MediaItem	getMediaItemAt(int index) Returns the MediaItem at the given index.
abstract int	getMediaItemCount() Returns the number of media items in the playlist.
abstract MediaMetadata	getMediaMetadata() Returns the current combined MediaMetadata, or EMPTY if not supported.
abstract int	getNextMediaItemIndex() 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.
abstract int	@UnstableApi getNextWindowIndex() This method is deprecated. Use getNextMediaItemIndex instead.
abstract boolean	getPlayWhenReady() Whether playback will proceed when getPlaybackState == STATE_READY.
abstract PlaybackParameters	getPlaybackParameters() Returns the currently active playback parameters.
abstract int	@Player.State getPlaybackState() Returns the current playback state of the player.
abstract int	@Player.PlaybackSuppressionReason getPlaybackSuppressionReason() Returns the reason why playback is suppressed even though getPlayWhenReady is true, or PLAYBACK_SUPPRESSION_REASON_NONE if playback is not suppressed.
abstract @Nullable PlaybackException	getPlayerError() Returns the error that caused playback to fail.
abstract MediaMetadata	getPlaylistMetadata() Returns the playlist MediaMetadata, as set by setPlaylistMetadata, or EMPTY if not supported.
abstract int	getPreviousMediaItemIndex() 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.
abstract int	@UnstableApi getPreviousWindowIndex() This method is deprecated. Use getPreviousMediaItemIndex instead.
abstract int	@Player.RepeatMode getRepeatMode() Returns the current RepeatMode used for playback.
abstract long	getSeekBackIncrement() Returns the seekBack increment.
abstract long	getSeekForwardIncrement() Returns the seekForward increment.
abstract boolean	getShuffleModeEnabled() Returns whether shuffling of media items is enabled.
abstract Size	@UnstableApi getSurfaceSize() Gets the size of the surface on which the video is rendered.
abstract long	getTotalBufferedDuration() Returns an estimate of the total buffered duration from the current position, in milliseconds.
abstract TrackSelectionParameters	getTrackSelectionParameters() Returns the parameters constraining the track selection.
abstract VideoSize	getVideoSize() Gets the size of the video.
abstract @FloatRange(from = 0, to = 1.0) float	getVolume() Returns the audio volume, with 0 being silence and 1 being unity gain (signal unchanged).
abstract boolean	@UnstableApi hasNext() This method is deprecated. Use hasNextMediaItem instead.
abstract boolean	hasNextMediaItem() Returns whether a next MediaItem exists, which may depend on the current repeat mode and whether shuffle mode is enabled.
abstract boolean	@UnstableApi hasNextWindow() This method is deprecated. Use hasNextMediaItem instead.
abstract boolean	hasPreviousMediaItem() Returns whether a previous media item exists, which may depend on the current repeat mode and whether shuffle mode is enabled.
abstract void	increaseDeviceVolume() This method is deprecated. Use increaseDeviceVolume instead.
abstract void	increaseDeviceVolume(@C.VolumeFlags int flags) Increases the volume of the device.
abstract boolean	isCommandAvailable(@Player.Command int command) Returns whether the provided Command is available.
abstract boolean	isCurrentMediaItemDynamic() Returns whether the current MediaItem is dynamic (may change when the Timeline is updated), or false if the Timeline is empty.
abstract boolean	isCurrentMediaItemLive() Returns whether the current MediaItem is live, or false if the Timeline is empty.
abstract boolean	isCurrentMediaItemSeekable() Returns whether the current MediaItem is seekable, or false if the is empty.
abstract boolean	@UnstableApi isCurrentWindowDynamic() This method is deprecated. Use isCurrentMediaItemDynamic instead.
abstract boolean	@UnstableApi isCurrentWindowLive() This method is deprecated. Use isCurrentMediaItemLive instead.
abstract boolean	@UnstableApi isCurrentWindowSeekable() This method is deprecated. Use isCurrentMediaItemSeekable instead.
abstract boolean	isDeviceMuted() Gets whether the device is muted or not.
abstract boolean	isLoading() Whether the player is currently loading the source.
abstract boolean	isPlaying() Returns whether the player is playing, i.e. getCurrentPosition is advancing.
abstract boolean	isPlayingAd() Returns whether the player is currently playing an ad.
abstract void	moveMediaItem(int currentIndex, int newIndex) Moves the media item at the current index to the new index.
abstract void	moveMediaItems(int fromIndex, int toIndex, int newIndex) Moves the media item range to the new index.
abstract void	@UnstableApi next() This method is deprecated. Use seekToNextMediaItem instead.
abstract void	pause() Pauses playback.
abstract void	play() Resumes playback as soon as getPlaybackState == STATE_READY.
abstract void	prepare() Prepares the player.
abstract void	release() Releases the player.
abstract void	removeListener(Player.Listener listener) Unregister a listener registered through addListener.
abstract void	removeMediaItem(int index) Removes the media item at the given index of the playlist.
abstract void	removeMediaItems(int fromIndex, int toIndex) Removes a range of media items from the playlist.
abstract void	replaceMediaItem(int index, MediaItem mediaItem) Replaces the media item at the given index of the playlist.
abstract void	replaceMediaItems(     int fromIndex,     int toIndex,     List<MediaItem> mediaItems ) Replaces the media items at the given range of the playlist.
abstract void	seekBack() Seeks back in the current MediaItem by getSeekBackIncrement milliseconds.
abstract void	seekForward() Seeks forward in the current MediaItem by getSeekForwardIncrement milliseconds.
abstract void	seekTo(long positionMs) Seeks to a position specified in milliseconds in the current MediaItem.
abstract void	seekTo(int mediaItemIndex, long positionMs) Seeks to a position specified in milliseconds in the specified MediaItem.
abstract void	seekToDefaultPosition() Seeks to the default position associated with the current MediaItem.
abstract void	seekToDefaultPosition(int mediaItemIndex) Seeks to the default position associated with the specified MediaItem.
abstract void	seekToNext() Seeks to a later position in the current or next MediaItem (if available).
abstract void	seekToNextMediaItem() Seeks to the default position of the next MediaItem, which may depend on the current repeat mode and whether shuffle mode is enabled.
abstract void	@UnstableApi seekToNextWindow() This method is deprecated. Use seekToNextMediaItem instead.
abstract void	seekToPrevious() Seeks to an earlier position in the current or previous MediaItem (if available).
abstract void	seekToPreviousMediaItem() Seeks to the default position of the previous MediaItem, which may depend on the current repeat mode and whether shuffle mode is enabled.
abstract void	@UnstableApi seekToPreviousWindow() This method is deprecated. Use seekToPreviousMediaItem instead.
abstract void	setAudioAttributes(     AudioAttributes audioAttributes,     boolean handleAudioFocus ) Sets the attributes for audio playback, used by the underlying audio track.
abstract void	setDeviceMuted(boolean muted) This method is deprecated. Use setDeviceMuted instead.
abstract void	setDeviceMuted(boolean muted, @C.VolumeFlags int flags) Sets the mute state of the device.
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	setMediaItem(MediaItem mediaItem) Clears the playlist, adds the specified MediaItem and resets the position to the default position.
abstract void	setMediaItem(MediaItem mediaItem, boolean resetPosition) Clears the playlist and adds the specified MediaItem.
abstract void	setMediaItem(MediaItem mediaItem, long startPositionMs) Clears the playlist and adds the specified MediaItem.
abstract void	setMediaItems(List<MediaItem> mediaItems) Clears the playlist, adds the specified media items and resets the position to the default position.
abstract void	setMediaItems(List<MediaItem> mediaItems, boolean resetPosition) Clears the playlist and adds the specified media items.
abstract void	setMediaItems(     List<MediaItem> mediaItems,     int startIndex,     long startPositionMs ) Clears the playlist and adds the specified media items.
abstract void	setPlayWhenReady(boolean playWhenReady) Sets whether playback should proceed when getPlaybackState == STATE_READY.
abstract void	setPlaybackParameters(PlaybackParameters playbackParameters) Attempts to set the playback parameters.
abstract void	setPlaybackSpeed(@FloatRange(from = 0, fromInclusive = false) float speed) Changes the rate at which playback occurs.
abstract void	setPlaylistMetadata(MediaMetadata mediaMetadata) Sets the playlist MediaMetadata.
abstract void	setRepeatMode(@Player.RepeatMode int repeatMode) Sets the RepeatMode to be used for playback.
abstract void	setShuffleModeEnabled(boolean shuffleModeEnabled) Sets whether shuffling of media items is enabled.
abstract void	setTrackSelectionParameters(TrackSelectionParameters parameters)</