• Core Library:
  • Move Player components to ExoPlayer. For example Player.VideoComponent is now ExoPlayer.VideoComponent.
  • The most used methods of Player's audio, video, text and metadata components have been added directly to Player.
  • Add Player.getAvailableCommands, Player.isCommandAvailable and Listener.onAvailableCommandsChanged to query which commands that can be executed on the player.
  • Add a Player.Listener interface to receive all player events. Component listeners and EventListener have been deprecated.
  • Add Player.getMediaMetadata, which returns a combined and structured MediaMetadata object. Changes to metadata are reported to Listener.onMediaMetadataChanged.
  • Player.setPlaybackParameters no longer accepts null, use PlaybackParameters.DEFAULT instead.
  • Report information about the old and the new playback positions to Listener.onPositionDiscontinuity. Add DISCONTINUITY_REASON_SKIP and DISCONTINUITY_REASON_REMOVE as discontinuity reasons, and rename DISCONTINUITY_REASON_PERIOD_TRANSITION to DISCONTINUITY_REASON_AUTO_TRANSITION. Remove DISCONTINUITY_REASON_AD_INSERTION, for which DISCONTINUITY_REASON_AUTO_TRANSITION is used instead (#6163, #4768).
  • Deprecate ExoPlayer.Builder. Use SimpleExoPlayer.Builder instead.
  • Move Player.getRendererCount and Player.getRendererType to ExoPlayer.
  • Use an empty string instead of the URI if the media ID is not explicitly set with MediaItem.Builder.setMediaId(String).
  • Remove MediaCodecRenderer.configureCodec() and add MediaCodecRenderer.getMediaCodecConfiguration(). The new method is called just before the MediaCodec is created and returns the parameters needed to create and configure the MediaCodec instance. Applications can override MediaCodecRenderer.onCodecInitialized() to be notified after a MediaCodec is initialized, or they can inject a custom MediaCodecAdapter.Factory if they want to control how the MediaCodec is configured.
  • Promote AdaptiveTrackSelection.AdaptationCheckpoint to public visibility to allow Kotlin subclasses of AdaptiveTrackSelection.Factory (#8830).
  • Fix bug when transitions from content to ad periods called onMediaItemTransition by mistake.
  • AdsLoader.AdViewProvider and AdsLoader.OverlayInfo have been renamed com.google.android.exoplayer2.ui.AdViewProvider and com.google.android.exoplayer2.ui.AdOverlayInfo respectively.
  • CaptionStyleCompat has been moved to the com.google.android.exoplayer2.ui package.
  • DebugTextViewHelper has been moved from the ui package to the util package.
• RTSP:
  • Initial support for RTSP playbacks (#55).
• Downloads and caching:
  • Fix CacheWriter to correctly handle cases where the request DataSpec extends beyond the end of the underlying resource. Caching will now succeed in this case, with data up to the end of the resource being cached. This behaviour is enabled by default, and so the allowShortContent parameter has been removed (#7326).
  • Fix CacheWriter to correctly handle DataSource.close failures, for which it cannot be assumed that data was successfully written to the cache.
• DRM:
  • Prepare DRM sessions (and fetch keys) ahead of the playback position (#4133).
  • Only dispatch DRM session acquire and release events once per period when playing content that uses the same encryption keys for both audio & video tracks. Previously, separate acquire and release events were dispatched for each track in each period.
  • Include the session state in DRM session-acquired listener methods.
• UI:
  • Add PlayerNotificationManager.Builder, with the ability to specify which group the notification should belong to.
  • Remove setUseSensorRotation from PlayerView and StyledPlayerView. Instead, cast the view returned by getVideoSurfaceView to SphericalGLSurfaceView, and then call setUseSensorRotation on the SphericalGLSurfaceView directly.
• Analytics:
  • Add onAudioCodecError and onVideoCodecError to AnalyticsListener.
• Video:
  • Add Player.getVideoSize() to retrieve the current size of the video stream. Add Listener.onVideoSizeChanged(VideoSize) and deprecate Listener.onVideoSizeChanged(int, int, int, float).
• Audio:
  • Report unexpected audio discontinuities to AnalyticsListener.onAudioSinkError (#6384).
  • Allow forcing offload for gapless content even if gapless playback is not supported.
  • Allow fall back from DTS-HD to DTS when playing via passthrough.
• Text:
  • Fix overlapping lines when using SubtitleView.VIEW_TYPE_WEB.
  • Parse SSA/ASS underline & strikethrough info in Style: lines (#8435).
  • Ensure TTML tts:textAlign is correctly propagated from <p> nodes to child nodes.
  • Support TTML ebutts:multiRowAlign attributes.
• Allow the use of Android platform extractors through MediaParser:
  • Supported on API 30+:
  • You can use platform extractors for progressive media by passing MediaParserExtractorAdapter.FACTORY when creating a ProgressiveMediaSource.Factory.
  • You can use platform extractors for HLS by passing MediaParserHlsMediaChunkExtractor.FACTORY when creating a HlsMediaSource.Factory.
  • You can use platform extractors for DASH by passing a DefaultDashChunkSource that uses MediaParserChunkExtractor.FACTORY when creating a DashMediaSource.Factory.
• Cast extension:
  • Trigger onMediaItemTransition event for all reasons except MEDIA_ITEM_TRANSITION_REASON_REPEAT.
• MediaSession extension:
  • Remove dependency on exoplayer-core, relying only exoplayer-common instead. To achieve this, TimelineQueueEditor uses a new MediaDescriptionConverter interface, and no longer relies on ConcatenatingMediaSource.
• Remove deprecated symbols:
  • Remove ExoPlayerFactory. Use SimpleExoPlayer.Builder instead.
  • Remove Player.DefaultEventListener. Use Player.Listener instead.
  • Remove ExtractorMediaSource. Use ProgressiveMediaSource instead.
  • Remove DefaultMediaSourceEventListener. Use MediaSourceEventListener instead.
  • Remove DashManifest constructor. Use the remaining constructor with programInformation and serviceDescription set to null instead.
  • Remove CryptoInfo.getFrameworkCryptoInfoV16. Use CryptoInfo.getFrameworkCryptoInfo instead.
  • Remove NotificationUtil.createNotificationChannel(Context, String, int, int). Use createNotificationChannel(Context, String, int, int, int) instead.
  • Remove PlayerNotificationManager.setNotificationListener. Use PlayerNotificationManager.Builder.setNotificationListener instead.
  • Remove PlayerNotificationManager.NotificationListener onNotificationStarted(int, Notification) and onNotificationCancelled(int). Use onNotificationPosted(int, Notification, boolean) and onNotificationCancelled(int, boolean) instead.
  • Remove DownloadNotificationUtil. Use DownloadNotificationHelper instead.
  • Remove extension-jobdispatcher module. Use the extension-workmanager module instead.