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index.md
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index.md
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---
title: "WorkerNavigator: mediaCapabilities property"
short-title: mediaCapabilities
slug: Web/API/WorkerNavigator/mediaCapabilities
page-type: web-api-instance-property
browser-compat: api.WorkerNavigator.mediaCapabilities
---
{{APIRef("HTML DOM")}}
The read-only **`WorkerNavigator.mediaCapabilities`** property
returns a {{domxref("MediaCapabilities")}} object that can expose information about the
decoding and encoding capabilities for a given format and output capabilities as defined
by the [Media Capabilities API](/en-US/docs/Web/API/Media_Capabilities_API).
## Value
A {{domxref("MediaCapabilities")}} object.
## Examples
```js
navigator.mediaCapabilities
.decodingInfo({
type: "file",
audio: {
contentType: "audio/mp3",
channels: 2,
bitrate: 132700,
samplerate: 5200,
},
})
.then((result) => {
console.log(
`This configuration is ${result.supported ? "" : "not "}supported,`,
);
console.log(`${result.smooth ? "" : "not "}smooth, and`);
console.log(`${result.powerEfficient ? "" : "not "}power efficient.`);
});
```
## Specifications
{{Specifications}}
## Browser compatibility
{{Compat}}
## See also
- [Media Capabilities API](/en-US/docs/Web/API/Media_Capabilities_API)
- {{domxref("WorkerNavigator")}}