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media3/RELEASENOTES.md
olly a16c0b3068 Reading AV1 initialization data. 
We add an entire class like we do for parsing other codec initialization formats; it's currently not doing any parsing though (... initialization data is really simple for AV1 though: just the entire contents of the box).

For testing, we add the sample file, having been re-encoded with ffmpeg (and we also happen to have another av1 file, too).

PiperOrigin-RevId: 444890282
2022-05-09 10:24:18 +01:00

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Release notes

Unreleased changes

  • Core library:

    • Enable support for Android platform diagnostics via MediaMetricsManager. ExoPlayer will forward playback events and performance data to the platform, which helps to provide system performance and debugging information on the device. This data may also be collected by Google if sharing usage and diagnostics data is enabled by the user of the device. Apps can opt-out of contributing to platform diagnostics for ExoPlayer with ExoPlayer.Builder.setUsePlatformDiagnostics(false).

  • Track selection:

    • Flatten TrackSelectionOverrides class into TrackSelectionParameters, and promote TrackSelectionOverride to a top level class.
    • Rename TracksInfo to Tracks and TracksInfo.TrackGroupInfo to Tracks.Group. Player.getCurrentTracksInfo and Player.Listener.onTracksInfoChanged have also been renamed to Player.getCurrentTracks and Player.Listener.onTracksChanged.

  • Video:

    • Rename DummySurface to PlaceHolderSurface.

  • Audio:

    • Use LG AC3 audio decoder advertising non-standard MIME type.

  • Ad playback / IMA:

    • Decrease ad polling rate from every 100ms to every 200ms, to line up with Media Rating Council (MRC) recommendations.

  • Text:

    • SSA: Support OutlineColour style setting when BorderStyle == 3 (i.e. OutlineColour sets the background of the cue) (#8435).
    • CEA-708: Parse data into multiple service blocks and ignore blocks not associated with the currently selected service number.

  • Extractors:

    • Matroska: Parse DiscardPadding for Opus tracks.
    • Parse bitrates from esds boxes.

  • UI:

    • Fix delivery of events to OnClickListeners set on PlayerView and LegacyPlayerView, in the case that useController=false (#9605). Also fix delivery of events to OnLongClickListener for all view configurations.
    • Fix incorrectly treating a sequence of touch events that exit the bounds of PlayerView and LegacyPlayerView before ACTION_UP as a click (#9861).
    • Fix PlayerView accessibility issue where it was not possible to tapping would toggle playback rather than hiding the controls (#8627).
    • Rewrite TrackSelectionView and TrackSelectionDialogBuilder to work with the Player interface rather than ExoPlayer. This allows the views to be used with other Player implementations, and removes the dependency from the UI module to the ExoPlayer module. This is a breaking change.
    • Don't show forced text tracks in the PlayerView track selector, and keep a suitable forced text track selected if "None" is selected (#9432).

  • DASH:

    • Parse channel count from DTS AudioChannelConfiguration elements. This re-enables audio passthrough for DTS streams (#10159).

  • HLS:

    • Fallback to chunkful preparation if the playlist CODECS attribute does not contain the audio codec (#10065).

  • RTSP:

    • Add RTP reader for MPEG4 (#35).
    • Add RTP reader for HEVC (#36).
    • Add RTP reader for AMR. Currently only mono-channel, non-interleaved AMR streams are supported. Compound AMR RTP payload is not supported. (#46)
    • Add RTP reader for VP8 (#47).
    • Add RTP reader for WAV (#56).
    • Fix RTSP basic authorization header. (#9544).
    • Stop checking mandatory SDP fields as ExoPlayer doesn't need them (#10049).
    • Throw checked exception when parsing RTSP timing (#10165).

  • Session:

    • Fix NPE in MediaControllerImplLegacy (#59)
    • Update session position info on timeline change(#51)

  • Data sources:

    • Rename DummyDataSource to PlaceHolderDataSource.

  • Remove deprecated symbols:

    • Remove Player.Listener.onTracksChanged. Use Player.Listener.onTracksInfoChanged instead.
    • Remove Player.getCurrentTrackGroups and Player.getCurrentTrackSelections. Use Player.getCurrentTracksInfo instead. You can also continue to use ExoPlayer.getCurrentTrackGroups and ExoPlayer.getCurrentTrackSelections, although these methods remain deprecated.
    • Remove DownloadHelper DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_VIEWPORT and DEFAULT_TRACK_SELECTOR_PARAMETERS constants. Use getDefaultTrackSelectorParameters(Context) instead when possible, and DEFAULT_TRACK_SELECTOR_PARAMETERS_WITHOUT_CONTEXT otherwise.
    • FFmpeg extension:
      • Update CMake version to 3.21.0+ to avoid a CMake bug causing AndroidStudio's gradle sync to fail (#9933).

1.0.0-alpha03 (2022-03-14)

This release corresponds to the ExoPlayer 2.17.1 release.

  • Audio:
    • Fix error checking audio capabilities for Dolby Atmos (E-AC3-JOC) in HLS.
  • Extractors:
    • FMP4: Fix issue where emsg sample metadata could be output in the wrong order for streams containing both v0 and v1 emsg atoms (#9996).
  • Text:
    • Fix the interaction of SingleSampleMediaSource.Factory.setTrackId and MediaItem.SubtitleConfiguration.Builder.setId to prioritise the SubtitleConfiguration field and fall back to the Factory value if it's not set (#10016).
  • Ad playback:
    • Fix audio underruns between ad periods in live HLS SSAI streams.

1.0.0-alpha02 (2022-03-02)

This release corresponds to the ExoPlayer 2.17.0 release.

  • Core Library:
    • Add protected method DefaultRenderersFactory.getCodecAdapterFactory() so that subclasses of DefaultRenderersFactory that override buildVideoRenderers() or buildAudioRenderers() can access the codec adapter factory and pass it to MediaCodecRenderer instances they create.
    • Propagate ICY header fields name and genre to MediaMetadata.station and MediaMetadata.genre respectively so that they reach the app via Player.Listener.onMediaMetadataChanged() (#9677).
    • Remove null keys from DefaultHttpDataSource#getResponseHeaders.
    • Sleep and retry when creating a MediaCodec instance fails. This works around an issue that occurs on some devices when switching a surface from a secure codec to another codec (#8696).
    • Add MediaCodecAdapter.getMetrics() to allow users obtain metrics data from MediaCodec (#9766).
    • Fix Maven dependency resolution (#8353).
    • Disable automatic speed adjustment for live streams that neither have low-latency features nor a user request setting the speed (#9329).
    • Rename DecoderCounters#inputBufferCount to queuedInputBufferCount.
    • Make SimpleExoPlayer.renderers private. Renderers can be accessed via ExoPlayer.getRenderer.
    • Updated some AnalyticsListener.EventFlags constant values to match values in Player.EventFlags.
    • Split AnalyticsCollector into an interface and default implementation to allow it to be stripped by R8 if an app doesn't need it.
  • Track selection:
    • Support preferred video role flags in track selection (#9402).
    • Update video track selection logic to take preferred MIME types and role flags into account when selecting multiple video tracks for adaptation (#9519).
    • Update video and audio track selection logic to only choose formats for adaptive selections that have the same level of decoder and hardware support (#9565).
    • Update video track selection logic to prefer more efficient codecs if multiple codecs are supported by primary, hardware-accelerated decoders (#4835).
    • Prefer audio content preferences (for example, the "default" audio track or a track matching the system locale language) over technical track selection constraints (for example, preferred MIME type, or maximum channel count).
    • Fix track selection issue where overriding one track group did not disable other track groups of the same type (#9675).
    • Fix track selection issue where a mixture of non-empty and empty track overrides is not applied correctly (#9649).
    • Prohibit duplicate TrackGroups in a TrackGroupArray. TrackGroups can always be made distinguishable by setting an id in the TrackGroup constructor. This fixes a crash when resuming playback after backgrounding the app with an active track override (#9718).
    • Amend logic in AdaptiveTrackSelection to allow a quality increase under sufficient network bandwidth even if playback is very close to the live edge (#9784).
  • Video:
    • Fix decoder fallback logic for Dolby Vision to use a compatible H264/H265 decoder if needed.
  • Audio:
    • Fix decoder fallback logic for Dolby Atmos (E-AC3-JOC) to use a compatible E-AC3 decoder if needed.
    • Change AudioCapabilities APIs to require passing explicitly AudioCapabilities.DEFAULT_AUDIO_CAPABILITIES instead of null.
    • Allow customization of the AudioTrack buffer size calculation by injecting an AudioTrackBufferSizeProvider to DefaultAudioSink (#8891).
    • Retry AudioTrack creation if the requested buffer size was > 1MB (#9712).
  • Extractors:
    • WAV: Add support for RF64 streams (#9543).
    • Fix incorrect parsing of H.265 SPS NAL units (#9719).
    • Parse Vorbis Comments (including METADATA_BLOCK_PICTURE) in Ogg Opus and Ogg Vorbis files.
  • Text:
    • Add a MediaItem.SubtitleConfiguration.id field which is propagated to the Format.id field of the subtitle track created from the configuration (#9673).
    • Add basic support for WebVTT subtitles in Matroska containers (#9886).
    • Prevent Cea708Decoder from reading more than the declared size of a service block.
  • DRM:
    • Remove playbackLooper from DrmSessionManager.(pre)acquireSession. When a DrmSessionManager is used by an app in a custom MediaSource, the playbackLooper needs to be passed to DrmSessionManager.setPlayer instead.
  • Ad playback / IMA:
    • Add support for IMA Dynamic Ad Insertion (DAI) (#8213).
    • Add a method to AdPlaybackState to allow resetting an ad group so that it can be played again (#9615).
    • Enforce playback speed of 1.0 during ad playback (#9018).
    • Fix issue where an ad group that failed to load caused an immediate playback reset (#9929).
  • UI:
    • Fix the color of the numbers in StyledPlayerView rewind and fastforward buttons when using certain themes (#9765).
    • Correctly translate playback speed strings (#9811).
  • DASH:
    • Add parsed essential and supplemental properties to the Representation (#9579).
    • Support the forced-subtitle track role (#9727).
    • Stop interpreting the main track role as C.SELECTION_FLAG_DEFAULT.
    • Fix base URL exclusion logic for manifests that do not declare the DVB namespace (#9856).
    • Support relative MPD.Location URLs (#9939).
  • HLS:
    • Correctly populate Format.label for audio only HLS streams (#9608).
    • Use chunkless preparation by default to improve start up time. If your renditions contain muxed closed-caption tracks that are not declared in the master playlist, you should add them to the master playlist to be available for playback, or turn off chunkless preparation with HlsMediaSource.Factory.setAllowChunklessPreparation(false).
    • Support key-frame accurate seeking in HLS (#2882).
  • RTSP:
    • Provide a client API to override the SocketFactory used for any server connection (#9606).
    • Prefer DIGEST authentication method over BASIC if both are present (#9800).
    • Handle when RTSP track timing is not available (#9775).
    • Ignore invalid RTP-Info header values (#9619).
  • Transformer:
    • Increase required min API version to 21.
    • TransformationException is now used to describe errors that occur during a transformation.
    • Add TransformationRequest for specifying the transformation options.
    • Allow multiple listeners to be registered.
    • Fix Transformer being stuck when the codec output is partially read.
    • Fix potential NPE in Transformer.getProgress when releasing the muxer throws.
    • Add a demo app for applying transformations.
  • MediaSession extension:
    • By default, MediaSessionConnector now clears the playlist on stop. Apps that want the playlist to be retained can call setClearMediaItemsOnStop(false) on the connector.
  • Cast extension:
    • Fix bug that prevented CastPlayer from calling onIsPlayingChanged correctly (#9792).
    • Support audio metadata including artwork with DefaultMediaItemConverter (#9663).
  • FFmpeg extension:
    • Make build_ffmpeg.sh depend on LLVM's bin utils instead of GNU's (#9933).
  • Android 12 compatibility:
    • Upgrade the Cast extension to depend on com.google.android.gms:play-services-cast-framework:20.1.0. Earlier versions of play-services-cast-framework are not compatible with apps targeting Android 12, and will crash with an IllegalArgumentException when creating PendingIntents (#9528).
  • Remove deprecated symbols:
    • Remove Player.EventLister. Use Player.Listener instead.
    • Remove MediaSourceFactory.setDrmSessionManager, MediaSourceFactory.setDrmHttpDataSourceFactory, and MediaSourceFactory.setDrmUserAgent. Use MediaSourceFactory.setDrmSessionManagerProvider instead.
    • Remove MediaSourceFactory.setStreamKeys. Use MediaItem.Builder.setStreamKeys instead.
    • Remove MediaSourceFactory.createMediaSource(Uri). Use MediaSourceFactory.createMediaSource(MediaItem) instead.
    • Remove setTag from DashMediaSource, HlsMediaSource and SsMediaSource. Use MediaItem.Builder.setTag instead.
    • Remove DashMediaSource.setLivePresentationDelayMs(long, boolean). Use MediaItem.Builder.setLiveConfiguration and MediaItem.LiveConfiguration.Builder.setTargetOffsetMs to override the manifest, or DashMediaSource.setFallbackTargetLiveOffsetMs to provide a fallback value.
    • Remove (Simple)ExoPlayer.setThrowsWhenUsingWrongThread. Opting out of the thread enforcement is no longer possible.
    • Remove ActionFile and ActionFileUpgradeUtil. Use ExoPlayer 2.16.1 or before to use ActionFileUpgradeUtil to merge legacy action files into DefaultDownloadIndex.
    • Remove ProgressiveMediaSource.setExtractorsFactory. Use ProgressiveMediaSource.Factory(DataSource.Factory, ExtractorsFactory) constructor instead.
    • Remove ProgressiveMediaSource.Factory.setTag and ProgressiveMediaSource.Factory.setCustomCacheKey. Use MediaItem.Builder.setTag and MediaItem.Builder.setCustomCacheKey instead.
    • Remove DefaultRenderersFactory(Context, @ExtensionRendererMode int) and DefaultRenderersFactory(Context, @ExtensionRendererMode int, long) constructors. Use the DefaultRenderersFactory(Context) constructor, DefaultRenderersFactory.setExtensionRendererMode, and DefaultRenderersFactory.setAllowedVideoJoiningTimeMs instead.
    • Remove all public CronetDataSource constructors. Use CronetDataSource.Factory instead.
  • Change the following IntDefs to @Target(TYPE_USE) only. This may break the compilation of usages in Kotlin, which can be fixed by moving the annotation to annotate the type (Int).
    • @AacAudioObjectType
    • @Ac3Util.SyncFrameInfo.StreamType
    • @AdLoadException.Type
    • @AdtsExtractor.Flags
    • @AmrExtractor.Flags
    • @AspectRatioFrameLayout.ResizeMode
    • @AudioFocusManager.PlayerCommand
    • @AudioSink.SinkFormatSupport
    • @BinarySearchSeeker.TimestampSearchResult.Type
    • @BufferReplacementMode
    • @C.BufferFlags
    • @C.ColorRange
    • @C.ColorSpace
    • @C.ColorTransfer
    • @C.CryptoMode
    • @C.Encoding
    • @C.PcmEncoding
    • @C.Projection
    • @C.SelectionReason
    • @C.StereoMode
    • @C.VideoOutputMode
    • @CacheDataSource.Flags
    • @CaptionStyleCompat.EdgeType
    • @DataSpec.Flags
    • @DataSpec.HttpMethods
    • @DecoderDiscardReasons
    • @DecoderReuseResult
    • @DefaultAudioSink.OutputMode
    • @DefaultDrmSessionManager.Mode
    • @DefaultTrackSelector.SelectionEligibility
    • @DefaultTsPayloadReaderFactory.Flags
    • @EGLSurfaceTexture.SecureMode
    • @EbmlProcessor.ElementType
    • @ExoMediaDrm.KeyRequest.RequestType
    • @ExtensionRendererMode
    • @Extractor.ReadResult
    • @FileTypes.Type
    • @FlacExtractor.Flags (in com.google.android.exoplayer2.ext.flac package)
    • @FlacExtractor.Flags (in com.google.android.exoplayer2.extractor.flac package)
    • @FragmentedMp4Extractor.Flags
    • @HlsMediaPlaylist.PlaylistType
    • @HttpDataSourceException.Type
    • @IllegalClippingException.Reason
    • @IllegalMergeException.Reason
    • @LoadErrorHandlingPolicy.FallbackType
    • @MatroskaExtractor.Flags
    • @Mp3Extractor.Flags
    • @Mp4Extractor.Flags
    • @NotificationUtil.Importance
    • @PlaybackException.FieldNumber
    • @PlayerNotificationManager.Priority
    • @PlayerNotificationManager.Visibility
    • @PlayerView.ShowBuffering
    • @Renderer.State
    • @RendererCapabilities.AdaptiveSupport
    • @RendererCapabilities.Capabilities
    • @RendererCapabilities.DecoderSupport
    • @RendererCapabilities.FormatSupport
    • @RendererCapabilities.HardwareAccelerationSupport
    • @RendererCapabilities.TunnelingSupport
    • @SampleStream.ReadDataResult
    • @SampleStream.ReadFlags
    • @StyledPlayerView.ShowBuffering
    • @SubtitleView.ViewType
    • @TextAnnotation.Position
    • @TextEmphasisSpan.MarkFill
    • @TextEmphasisSpan.MarkShape
    • @Track.Transformation
    • @TrackOutput.SampleDataPart
    • @Transformer.ProgressState
    • @TsExtractor.Mode
    • @TsPayloadReader.Flags
    • @WebvttCssStyle.FontSizeUnit

1.0.0-alpha01

AndroidX Media is the new home for media support libraries, including ExoPlayer. The first alpha contains early, functional implementations of libraries for implementing media use cases, including:

  • ExoPlayer, an application-level media player for Android that is easy to customize and extend.
  • Media session functionality, for exposing and controlling playbacks. This new session module uses the same Player interface as ExoPlayer.
  • UI components for building media playback user interfaces.
  • Modules wrapping functionality in other libraries for use with ExoPlayer, for example, ad insertion via the IMA SDK.

ExoPlayer was previously hosted in a separate ExoPlayer GitHub project. In AndroidX Media its package name is androidx.media3.exoplayer. We plan to continue to maintain and release the ExoPlayer GitHub project for a while to give apps time to migrate. AndroidX Media has replacements for all the ExoPlayer modules, except for the legacy media2 and mediasession extensions, which are together replaced by the new media3-session module. This provides direct integration between players and media sessions without needing to use an adapter/connector class.