media/libraries/exoplayer_dash
tonihei 24b3bf21b8 Check language/role flags before merging adaptation sets
The spec technically allows to mark adaptation sets with the switching
property if they allow seamless switching with non-overlapping
segments. This is typically only used for compatible content (e.g.
different codecs), but the spec allows it to be used for other
content as well (e.g. different languages, roles). ExoPlayer's concept
of a TrackGroup only allows formats with the same language and role
flags to be merged, so we should check that before merging.

Issue: androidx/media#2222

PiperOrigin-RevId: 736564055
(cherry picked from commit d37f05238a2d8b45ea2e5f4ac026084b917f30df)
2025-03-17 14:06:03 +00:00
..

ExoPlayer DASH module

Provides support for Dynamic Adaptive Streaming over HTTP (DASH) content in ExoPlayer.

Getting the module

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

implementation 'androidx.media3:media3-exoplayer-dash: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.

Using the module

Adding a dependency to this module is all that's required to enable playback of DASH media items added to ExoPlayer in its default configuration. Internally, DefaultMediaSourceFactory will automatically detect the presence of the module and convert a DASH MediaItem into a DashMediaSource for playback.

Similarly, a DownloadManager in its default configuration will use DefaultDownloaderFactory, which will automatically detect the presence of the module and build DashDownloader instances to download DASH content.

For advanced playback use cases, applications can build DashMediaSource instances and pass them directly to the player. For advanced download use cases, DashDownloader can be used directly.