A Boolean value that indicates whether the player should automatically delay playback in order to minimize stalling. For clients linked against iOS 10.0 and later
| minBufferMs | number | The default minimum duration of media that the player will attempt to ensure is buffered at all times, in milliseconds. |
| maxBufferMs | number | The default maximum duration of media that the player will attempt to buffer, in milliseconds. |
| bufferForPlaybackMs | number | The default duration of media that must be buffered for playback to start or resume following a user action such as a seek, in milliseconds. |
| bufferForPlaybackAfterRebufferMs | number | The default duration of media that must be buffered for playback to resume after a rebuffer, in milliseconds. A rebuffer is defined to be caused by buffer depletion rather than a user action. |
| backBufferDurationMs | number | The number of milliseconds of buffer to keep before the current position. This allows rewinding without rebuffering within that duration. |
| maxHeapAllocationPercent | number | The percentage of available heap that the video can use to buffer, between 0 and 1 |
| minBackBufferMemoryReservePercent | number | The percentage of available app memory at which during startup the back buffer will be disabled, between 0 and 1 |
| minBufferMemoryReservePercent | number | The percentage of available app memory to keep in reserve that prevents buffer from using it, between 0 and 1 |
| cacheSizeMB | number | Cache size in MB, enabling this to prevent new src requests and save bandwidth while repeating videos, or 0 to disable. Android only. |
| maxPlaybackSpeed | number | The maximum playback speed the player can use to catch up when trying to reach the target live offset. |
| minPlaybackSpeed | number | The minimum playback speed the player can use to fall back when trying to reach the target live offset. |
| maxOffsetMs | number | The maximum allowed live offset. Even when adjusting the offset to current network conditions, the player will not attempt to get above this offset during playback. |
| minOffsetMs | number | The minimum allowed live offset. Even when adjusting the offset to current network conditions, the player will not attempt to get below this offset during playback. |
| targetOffsetMs | number | The target live offset. The player will attempt to get close to this live offset during playback if possible. |
For android, more informations about live configuration can be find [here](https://developer.android.com/media/media3/exoplayer/live-streaming?hl=en)
Please note that the Android cache is a global cache that is shared among all components; individual components can still opt out of caching behavior by setting cacheSizeMB to 0, but multiple components with a positive cacheSizeMB will be sharing the same one, and the cache size will always be the first value set; it will not change during the app's lifecycle.
| title | string | The title of the chapter to create |
| startTime | number | The start time of the chapter in seconds |
| endTime | number | The end time of the chapter in seconds |
| uri | string? | Optional: Provide an http orl or the some base64 string to override the image of the chapter. For some media files the images are generated automatically |
If needed, you can also add your controls or use a package like [react-native-video-controls](https://github.com/itsnubix/react-native-video-controls) or [react-native-media-console](https://github.com/criszz77/react-native-media-console), see [Useful Side Project](/projects).
The start time in ms for SSAI content. This determines at what time to load the video info like resolutions. Use this only when you have SSAI stream where ads resolution is not the same as content resolution.
For more details on these filters refer to the [iOS docs](https://developer.apple.com/library/archive/documentation/GraphicsImaging/Reference/CoreImageFilterReference/index.html#//apple_ref/doc/uid/TP30000136-SW55).
If a preferred [fullscreenOrientation](#fullscreenorientation) is set, causes the video to rotate to that orientation but permits rotation of the screen to orientation held by user. Defaults to TRUE.
Sets the minimum number of times to retry loading data before failing and reporting an error to the application. Useful to recover from transient internet failures.
NOTE: Video ads cannot start when you are using the PIP on iOS (more info available at [Google IMA SDK Docs](https://developers.google.com/interactive-media-ads/docs/sdks/ios/client-side/picture_in_picture?hl=en#starting_ads)). If you are using custom controls, you must hide your PIP button when you receive the `STARTED` event from `onReceiveAdEvent` and show it again when you receive the `ALL_ADS_COMPLETED` event.
- [Enable Background Audio](https://developer.apple.com/library/archive/documentation/Audio/Conceptual/AudioSessionProgrammingGuide/AudioSessionBasics/AudioSessionBasics.html#//apple_ref/doc/uid/TP40007875-CH3-SW3) in your Xcode project
- **"contain" (default)** - Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or less than the corresponding dimension of the view (minus padding).
- **"center"** - Center the image in the view along both dimensions. If the image is larger than the view, scale it down uniformly so that it is contained in the view.
- **"cover"** - Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or larger than the corresponding dimension of the view (minus padding).
- **"none"** - Don't apply resize
- **"repeat"** - Repeat the image to cover the frame of the view. The image will keep its size and aspect ratio. (iOS only)
- **"stretch"** - Scale width and height independently, This may change the aspect ratio of the src.
The duration the player should buffer media from the network ahead of the playhead to guard against playback disruption. Sets the [preferredForwardBufferDuration](https://developer.apple.com/documentation/avfoundation/avplayeritem/1643630-preferredforwardbufferduration) instance property on AVPlayerItem.
Allows you to create custom components to display while the video is loading. If `renderLoader` is provided, `poster` and `posterResizeMode` will be ignored.
- **"contain"** - Scale the video uniformly (maintain the video's aspect ratio) so that both dimensions (width and height) of the video will be equal to or less than the corresponding dimension of the view (minus padding).
- **"cover"** - Scale the video uniformly (maintain the video's aspect ratio) so that both dimensions (width and height) of the image will be equal to or larger than the corresponding dimension of the view (minus padding).
- **"stretch"** - Scale width and height independently, This may change the aspect ratio of the src.
If a track matching the specified Type (and Value if appropriate) is unavailable, the first audio track will be played. If multiple tracks match the criteria, the first match will be used.
Both iOS & Android (only 4.4 and higher) offer Settings to enable Captions for hearing impaired people. If "system" is selected and the Captions Setting is enabled, iOS/Android will look for a caption that matches that customer's language and display it.
If a track matching the specified Type (and Value if appropriate) is unavailable, no text track will be displayed. If multiple tracks match the criteria, the first match will be used.
Configure which video track should be played. By default, the player uses Adaptive Bitrate Streaming to automatically select the stream it thinks will perform best based on available bandwidth.
Sets the media source. You can pass an asset loaded via require or an object with a uri.
Setting the source will trigger the player to attempt to load the provided media with all other given props. Please be sure that all props are provided before/at the same time as setting the source.
Rendering the player component with a null source will init the player, and start playing once a source value is provided.
Providing a null source value after loading a previous source will stop playback, and clear out the previous source content.
The docs for this prop are incomplete and will be updated as each option is investigated and tested.
Note: Using this feature adding an entry for NSAppleMusicUsageDescription to your Info.plist file as described [here](https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CocoaKeys.html)
##### Explicit mimetype for the stream
Provide a member `type` with value (`mpd`/`m3u8`/`ism`) inside the source object.
Sometimes is needed when URL extension does not match with the mimetype that you are expecting, as seen on the next example. (Extension is .ism -smooth streaming- but file served is on format mpd -mpeg dash-)
Provide an optional `startPosition` for video. Value is in milliseconds. If the `cropStart` prop is applied, it will be applied from that point forward.
(If it is negative or undefined or null, it is ignored)
Provide an optional `cropStart` and/or `cropEnd` for the video. Value is in milliseconds. Useful when you want to play only a portion of a large video.
The start time in ms for SSAI content. This determines at what time to load the video info like resolutions. Use this only when you have SSAI stream where ads resolution is not the same as content resolution.
| 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 _ TextTrackType.SRT - SubRip (.srt) _ TextTrackType.TTML - TTML (.ttml) \* TextTrackType.VTT - WebVTT (.vtt)iOS only supports VTT, Android supports all 3 |
| uri | URL for the text track. Currently, only tracks hosted on a webserver are supported |
On iOS, sidecar text tracks are only supported for individual files, not HLS playlists. For HLS, you should include the text tracks as part of the playlist.
Note: Due to iOS limitations, sidecar text tracks are not compatible with Airplay. If textTracks are specified, AirPlay support will be automatically disabled.
Example:
```javascript
import { TextTrackType }, Video from 'react-native-video';
| fontSize | Android | Adjust the font size of the subtitles. Default: font size of the device | Android |
| paddingTop | Android | Adjust the top padding of the subtitles. Default: 0 | Android |
| paddingBottom | Android | Adjust the bottom padding of the subtitles. Default: 0 | Android |
| paddingLeft | Android | Adjust the left padding of the subtitles. Default: 0 | Android |
| paddingRight | Android | Adjust the right padding of the subtitles. Default: 0 | Android |
| opacity | Android, iOS | Adjust the visibility of subtitles with 0 hiding and 1 fully showing them. Android supports float values between 0 and 1 for varying opacity levels, whereas iOS supports only 0 or 1. Default: 1. | Android, iOS |
| subtitlesFollowVideo | Android | Boolean to adjust position of subtitles. Default: true |
On iOS, sidecar text tracks are only supported for individual files, not HLS playlists. For HLS, you should include the text tracks as part of the playlist.
Note: Due to iOS limitations, sidecar text tracks are not compatible with Airplay. If textTracks are specified, AirPlay support will be automatically disabled.
For Android each Video component will have its own notification controls and for iOS only one notification control will be shown for the last Active Video component.
You propably want also set `playInBackground` to `true` to keep the video playing when the app is in the background or `playWhenInactive` to `true` to keep the video playing when notifications or the Control Center are in front of the video.
To customize the notification controls you can use `metadata` property in the `source` prop.
- **false (default)** - Don't show media controls in the notification area
- **true** - Show media controls in the notification area
**To test notification controls on iOS you need to run the app on a real device, as the simulator does not support it.**
**For Android you have to add the following code in your `AndroidManifest.xml` file:**
Configure CMCD (Common Media Client Data) parameters. CMCD is a standard for conveying client-side metrics and capabilities to servers, which can help improve streaming quality and performance.
For detailed information about CMCD, please refer to the [CTA-5004 Final Specification](https://cdn.cta.tech/cta/media/media/resources/standards/pdfs/cta-5004-final.pdf).
- **false (default)** - Don't use CMCD
- **true** - Use default CMCD configuration
- **object** - Use custom CMCD configuration
When providing an object, you can configure the following properties:
