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Document textTracks support for iOS

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Hampton Maxwell 2018-07-11 09:09:56 -07:00
parent 91ba07c9e9
commit f6e1079e57
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README.md
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@ -402,7 +402,7 @@ Property | Description
--- | ---
title | Descriptive name for the track
language | 2 letter [ISO 639-1 code](https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes) representing the language
type | Mime type of the track<br> * TextTrackType.SRT - .srt SubRip Subtitle<br> * TextTrackType.TTML - .ttml TTML<br> * TextTrackType.VTT - .vtt WebVTT
type | Mime type of the track<br> * TextTrackType.SRT - SubRip (.srt)<br> * TextTrackType.TTML - TTML (.ttml)<br> * TextTrackType.VTT - WebVTT (.vtt)<br>Android supports all 3 types, iOS only supports VTT
uri | URL for the text track. Currently, only tracks hosted on a webserver are supported
Example:
@ -413,21 +413,21 @@ textTracks={[
{
title: "English CC",
language: "en",
type: "text/vtt", TextTrackType.VTT,
type: TextTrackType.VTT, // "text/vtt"
uri: "https://bitdash-a.akamaihd.net/content/sintel/subtitles/subtitles_en.vtt"
},
{
title: "Spanish Subtitles",
language: "es",
type: "application/x-subrip", TextTrackType.SRT,
type: TextTrackType.SRT, // "application/x-subrip"
uri: "https://durian.blender.org/wp-content/content/subtitles/sintel_es.srt"
}
]}
```
This isn't support on iOS because AVPlayer doesn't support it. Text tracks must be loaded as part of an HLS playlist.
On iOS, sidecar text tracks are not supported for HLS playlists. For HLS playlists, you should include the text tracks as part of the playlist.
Platforms: Android ExoPlayer
Platforms: Android ExoPlayer, iOS
#### useTextureView
Output to a TextureView instead of the default SurfaceView. In general, you will want to use SurfaceView because it is more efficient and provides better performance. However, SurfaceViews has two limitations: