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Clean up release notes for 2.12: Audio

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PiperOrigin-RevId: 327790491
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olly 2020-08-21 12:39:49 +01:00 committed by Oliver Woodman
parent 0d8f016d33
commit 505511a761
1 changed files with 26 additions and 16 deletions
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RELEASENOTES.md
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@ -92,26 +92,36 @@
* Fix incorrect aspect ratio when transitioning from one video to another * Fix incorrect aspect ratio when transitioning from one video to another
that has the same resolution, but a different pixel aspect ratio. that has the same resolution, but a different pixel aspect ratio.
([#6646](https://github.com/google/ExoPlayer/issues/6646)). ([#6646](https://github.com/google/ExoPlayer/issues/6646)).
* Video: Pass frame rate hint to `Surface.setFrameRate` on Android R devices. * Video: Pass frame rate hint to `Surface.setFrameRate` on Android 11.
* Audio: * Audio:
* Add a sample count parameter to `MediaCodecRenderer.processOutputBuffer` * Add experimental support for power efficient playback using audio
and `AudioSink.handleBuffer` to allow batching multiple encoded frames offload.
in one buffer. * Add support for using framework audio speed adjustment instead of
* No longer use a `MediaCodec` in audio passthrough mode. ExoPlayer's implementation
([#7502](https://github.com/google/ExoPlayer/issues/7502)). This option
can be set using
`DefaultRenderersFactory.setEnableAudioTrackPlaybackParams`.
* Generalize support for floating point audio.
* Add an option to `DefaultAudioSink` for enabling floating point
output. This option can also be set using
`DefaultRenderersFactory.setEnableAudioFloatOutput`.
* Add floating point output capability to `MediaCodecAudioRenderer`
and `LibopusAudioRenderer`, which is enabled automatically if the
audio sink supports floating point output and if it makes sense for
the content being played.
* Enable the floating point output capability of `FfmpegAudioRenderer`
automatically if the audio sink supports floating point output and
if it makes sense for the content being played. The option to
manually enable floating point output has been removed, since this
now done with the generalized option on `DefaultAudioSink`.
* In `MediaCodecAudioRenderer`, stop passing audio samples through
`MediaCodec` when playing PCM audio or encoded audio using passthrough
mode.
* Reuse audio decoders when transitioning through playlists of gapless
audio, rather than reinstantiating them.
* Check `DefaultAudioSink` supports passthrough, in addition to checking * Check `DefaultAudioSink` supports passthrough, in addition to checking
the `AudioCapabilities` the `AudioCapabilities`
* Add an experimental scheduling mode to save power in offload.
([#7404](https://github.com/google/ExoPlayer/issues/7404)). ([#7404](https://github.com/google/ExoPlayer/issues/7404)).
* Adjust input timestamps in `MediaCodecRenderer` to account for the
Codec2 MP3 decoder having lower timestamps on the output side.
* Propagate gapless audio metadata without the need to recreate the audio
decoders.
* Add floating point PCM output capability in `MediaCodecAudioRenderer`,
and `LibopusAudioRenderer`.
* Do not use a MediaCodec for PCM formats if AudioTrack supports it.
* Add optional support for using framework audio speed adjustment instead
of application-level audio speed adjustment
([#7502](https://github.com/google/ExoPlayer/issues/7502)).
* Text: * Text:
* Add a WebView-based output option to `SubtitleView`. This can display * Add a WebView-based output option to `SubtitleView`. This can display
some features not supported by the existing Canvas-based output such as some features not supported by the existing Canvas-based output such as