87 lines
2.6 KiB
Markdown
87 lines
2.6 KiB
Markdown
---
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title: DASH
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---
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{% include_relative _page_fragments/supported-formats-dash.md %}
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## Using MediaItem ##
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To play a DASH stream, you need to depend on the DASH module.
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~~~
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implementation 'com.google.android.exoplayer:exoplayer-dash:2.X.X'
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~~~
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{: .language-gradle}
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You can then create a `MediaItem` for a DASH MPD URI and pass it to the player.
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~~~
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// Create a player instance.
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ExoPlayer player = new ExoPlayer.Builder(context).build();
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// Set the media item to be played.
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player.setMediaItem(MediaItem.fromUri(dashUri));
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// Prepare the player.
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player.prepare();
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~~~
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{: .language-java}
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If your URI doesn't end with `.mpd`, you can pass `MimeTypes.APPLICATION_MPD`
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to `setMimeType` of `MediaItem.Builder` to explicitly indicate the type of the
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content.
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ExoPlayer will automatically adapt between representations defined in the
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manifest, taking into account both available bandwidth and device capabilities.
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## Using DashMediaSource ##
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For more customization options, you can create a `DashMediaSource` and pass it
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directly to the player instead of a `MediaItem`.
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~~~
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// Create a data source factory.
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DataSource.Factory dataSourceFactory = new DefaultHttpDataSource.Factory();
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// Create a DASH media source pointing to a DASH manifest uri.
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MediaSource mediaSource =
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new DashMediaSource.Factory(dataSourceFactory)
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.createMediaSource(MediaItem.fromUri(dashUri));
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// Create a player instance.
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ExoPlayer player = new ExoPlayer.Builder(context).build();
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// Set the media source to be played.
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player.setMediaSource(mediaSource);
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// Prepare the player.
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player.prepare();
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~~~
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{: .language-java}
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## Accessing the manifest ##
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You can retrieve the current manifest by calling `Player.getCurrentManifest`.
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For DASH you should cast the returned object to `DashManifest`. The
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`onTimelineChanged` callback of `Player.Listener` is also called whenever
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the manifest is loaded. This will happen once for a on-demand content, and
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possibly many times for live content. The code snippet below shows how an app
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can do something whenever the manifest is loaded.
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~~~
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player.addListener(
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new Player.Listener() {
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@Override
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public void onTimelineChanged(
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Timeline timeline, @Player.TimelineChangeReason int reason) {
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Object manifest = player.getCurrentManifest();
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if (manifest != null) {
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DashManifest dashManifest = (DashManifest) manifest;
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// Do something with the manifest.
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}
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}
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});
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~~~
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{: .language-java}
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## Customizing playback ##
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ExoPlayer provides multiple ways for you to tailor playback experience to your
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app's needs. See the [Customization page][] for examples.
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[Customization page]: {{ site.baseurl }}/customization.html
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