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media/libraries/exoplayer
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tonihei 5e3dcea1bf Ramp up volume after AudioTrack flush to avoid pop sound 
AudioTrack doesn't automatically ramp up the volume after a flush
(only when resuming with play after a pause), which causes audible
pop sounds in most cases. The issue can be avoided by manually
applying a short 20ms volume ramp, the same duration used by the
platform for the automatic volume ramping where available.

Together with the already submitted 6147050b90, this fixes the
unwanted pop sounds for most cases in the desired way. It only
leaves two cases that are not handled perfectly:
 - If the media file itself contains a volume ramp at the beginning,
   we wouldn't need this additional ramping. Given the extremely
   short duration, this seems ignorable and we can treat it as a
   future feature request to mark the beginning of media in a special
   way that can then disable the volume ramping.
 - For seamless period transitions where we keep using the same
   AudioTrack, we may still get a pop sound at the transition. To
   solve this, we'd need a dedicated audio processor to either ramp
   the end of media down and the beginning of the next item up, or
   apply a very short cross-fade. Either way, we need new signalling
   to identify cases where the media originates from the same source
   and this effect should not be applied (e.g. when re-concatenating
   clipped audio snippets from the same file).

PiperOrigin-RevId: 676860234
2024-09-20 08:55:29 -07:00
..
src Ramp up volume after AudioTrack flush to avoid pop sound 2024-09-20 08:55:29 -07:00
build.gradle Replace Queue<Long> with a queue for long primitives 2023-08-24 09:14:44 +01:00
proguard-rules.txt Rename CompositingVideoSinkProvider and PreviewAudioPipeline 2024-09-11 05:49:35 -07:00
README.md Fix javadoc links in media README files 2023-03-30 17:26:40 +00:00

README.md

ExoPlayer module

This module provides ExoPlayer, the Player implementation for local media playback on Android.

Getting the module

The easiest way to get the module is to add it as a gradle dependency:

implementation 'androidx.media3:media3-exoplayer:1.X.X'

where 1.X.X is the version, which must match the version of the other media modules being used.

Alternatively, you can clone this GitHub project and depend on the module locally. Instructions for doing this can be found in the top level README.

Links