This feature is not Baseline because it does not work in some of the most widely-used browsers.
Note: This feature is available in Dedicated Web Workers.
The selectedIndex property of the ImageTrackList interface returns the index of the selected track.
An integer.
The following example prints the value of selectedIndex to the console.
let tracks = imageDecoder.tracks; console.log(tracks.selectedIndex);
| Specification |
|---|
| WebCodecs> # dom-imagetracklist-selectedindex> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
selectedIndex |
94 | 94 | 133 | 80 | No | 94 | 133 | 66 | No | 17.0 | 94 | No |
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https://developer.mozilla.org/en-US/docs/Web/API/ImageTrackList/selectedIndex