
The value returned by `player.getContentPosition()` is calculated in the timeline based on the position of the first period in the window. In a single period live stream this position is advanced when the live window advances on timeline refresh. This calculation has produced slightly varying values below 1000 us which are likely caused by us/ms truncations for public API values that we use in the IMASSAIMediaSource. However, `AdGroup.timeUs` is the (recorded) content position at the moment when the first ad of the an ad group has been inserted. While playing an ad, we can always use this value instead of `getContentPosition()` to not require recalculation. #minor-release PiperOrigin-RevId: 515093177
AndroidX Media
AndroidX Media is a collection of libraries for implementing media use cases on Android, including local playback (via ExoPlayer) and media sessions.
Current status
AndroidX Media is currently in release candidate and we welcome your feedback via the issue tracker. Please consult the release notes for more details about the current release.
ExoPlayer's new home will be in AndroidX Media, but for now we are publishing it both in AndroidX Media and via the existing ExoPlayer project and we are still handling ExoPlayer issues on the ExoPlayer issue tracker.
You'll find some Media3 documentation on developer.android.com, including a migration guide for existing ExoPlayer and MediaSession users.
AndroidX Media releases provide API stability guarantees, ensuring that the API surface remains backwards compatible for the most commonly used APIs. APIs intended for more advanced use cases are marked as unstable. To use an unstable method or class without lint warnings, you’ll need to add the OptIn annotation before using it. For more information see the UnstableApi documentation.
For a high level overview of the initial version of AndroidX Media please see the Android Dev Summit talk What's next for AndroidX Media and ExoPlayer.
Using the libraries
You can get the libraries from the Google Maven repository. It's also possible to clone this GitHub repository and depend on the modules locally.
From the Google Maven repository
1. Add module dependencies
The easiest way to get started using AndroidX Media is to add gradle
dependencies on the libraries you need in the build.gradle
file of your app
module.
For example, to depend on ExoPlayer with DASH playback support and UI components you can add dependencies on the modules like this:
implementation 'androidx.media3:media3-exoplayer:1.X.X'
implementation 'androidx.media3:media3-exoplayer-dash:1.X.X'
implementation 'androidx.media3:media3-ui:1.X.X'
where 1.X.X
is your preferred version. All modules must be the same version.
Please see the AndroidX Media3 developer.android.com page for more information, including a full list of library modules.
This repository includes some modules that depend on external libraries that need to be built manually, and are not available from the Maven repository. Please see the individual READMEs under the libraries directory for more details.
2. Turn on Java 8 support
If not enabled already, you also need to turn on Java 8 support in all
build.gradle
files depending on AndroidX Media, by adding the following to the
android
section:
compileOptions {
targetCompatibility JavaVersion.VERSION_1_8
}
3. Enable multidex
If your Gradle minSdkVersion
is 20 or lower, you should
enable multidex in order
to prevent build errors.
Locally
Cloning the repository and depending on the modules locally is required when
using some libraries. It's also a suitable approach if you want to make local
changes, or if you want to use the main
branch.
First, clone the repository into a local directory:
git clone https://github.com/androidx/media.git
cd media
Next, add the following to your project's settings.gradle
file, replacing
path/to/media
with the path to your local copy:
gradle.ext.androidxMediaModulePrefix = 'media-'
apply from: file("path/to/media/core_settings.gradle")
You should now see the AndroidX Media modules appear as part of your project. You can depend on them as you would on any other local module, for example:
implementation project(':media-lib-exoplayer')
implementation project(':media-lib-exoplayer-dash')
implementation project(':media-lib-ui')
Developing AndroidX Media
Project branches
Development work happens on the main
branch. Pull requests should normally be
made to this branch.
The release
branch holds the most recent stable release.
Using Android Studio
To develop AndroidX Media using Android Studio, simply open the project in the root directory of this repository.