VideoDecoder

Constructor

VideoDecoder(): Creates a new VideoDecoder object.

Instance properties

Inherits properties from its parent, EventTarget.

VideoDecoder.decodeQueueSize Read only

An integer representing the number of queued decode requests.

VideoDecoder.state Read only

Indicates the current state of decoder. Possible values are:

"unconfigured"
"configured"
"closed"

Events

dequeue: Fires to signal a decrease in VideoDecoder.decodeQueueSize.

Static methods

VideoDecoder.isConfigSupported(): Returns a promise indicating whether the provided VideoDecoderConfig is supported.

Instance methods

Inherits methods from its parent, EventTarget.

VideoDecoder.configure(): Enqueues a control message to configure the video decoder for decoding chunks.
VideoDecoder.decode(): Enqueues a control message to decode a given chunk of video.
VideoDecoder.flush(): Returns a promise that resolves once all pending messages in the queue have been completed.
VideoDecoder.reset(): Resets all states including configuration, control messages in the control message queue, and all pending callbacks.
VideoDecoder.close(): Ends all pending work and releases system resources.

Specifications

Specification
WebCodecs # videodecoder-interface

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`VideoDecoder`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`VideoDecoder()` constructor	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`close`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`configure`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`flip` configuration option Experimental	Chrome – Full support Chrome 138 (Release date: 2025-06-24) footnote Full support	Edge – Full support Edge 138 (Release date: 2025-06-26) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 122 (Release date: 2025-09-11) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – Full support Chrome Android 138 (Release date: 2025-06-24) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 91 (Release date: 2025-08-19) footnote Full support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – Full support WebView Android 138 (Release date: 2025-06-24) footnote Full support	WebView on iOS – No support WebView on iOS footnote No support
`rotation` configuration option Experimental	Chrome – Full support Chrome 138 (Release date: 2025-06-24) footnote Full support	Edge – Full support Edge 138 (Release date: 2025-06-26) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 122 (Release date: 2025-09-11) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – Full support Chrome Android 138 (Release date: 2025-06-24) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 91 (Release date: 2025-08-19) footnote Full support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – Full support WebView Android 138 (Release date: 2025-06-24) footnote Full support	WebView on iOS – No support WebView on iOS footnote No support
`decode`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`decodeQueueSize`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`dequeue` event	Chrome – Full support Chrome 106 (Release date: 2022-09-27) footnote Full support	Edge – Full support Edge 106 (Release date: 2022-10-03) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 92 (Release date: 2022-10-19) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 106 (Release date: 2022-09-27) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 72 (Release date: 2022-10-21) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 20 (Release date: 2023-02-10) footnote Full support	WebView Android – Full support WebView Android 106 (Release date: 2022-09-27) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`flush`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`isConfigSupported()` static method	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`flip` configuration option Experimental	Chrome – Full support Chrome 138 (Release date: 2025-06-24) footnote Full support	Edge – Full support Edge 138 (Release date: 2025-06-26) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 122 (Release date: 2025-09-11) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – Full support Chrome Android 138 (Release date: 2025-06-24) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 91 (Release date: 2025-08-19) footnote Full support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – Full support WebView Android 138 (Release date: 2025-06-24) footnote Full support	WebView on iOS – No support WebView on iOS footnote No support
`rotation` configuration option Experimental	Chrome – Full support Chrome 138 (Release date: 2025-06-24) footnote Full support	Edge – Full support Edge 138 (Release date: 2025-06-26) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 122 (Release date: 2025-09-11) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – Full support Chrome Android 138 (Release date: 2025-06-24) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 91 (Release date: 2025-08-19) footnote Full support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – Full support WebView Android 138 (Release date: 2025-06-24) footnote Full support	WebView on iOS – No support WebView on iOS footnote No support
`reset`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`state`	Chrome – Full support Chrome 94 (Release date: 2021-09-21) footnote Full support	Edge – Full support Edge 94 (Release date: 2021-09-24) footnote Full support	Firefox – Full support Firefox 130 (Release date: 2024-09-03) footnote Full support	Opera – Full support Opera 80 (Release date: 2021-10-05) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 94 (Release date: 2021-09-21) footnote Full support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – Full support Opera Android 66 (Release date: 2021-12-15) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 17 (Release date: 2022-05-04) footnote Full support	WebView Android – Full support WebView Android 94 (Release date: 2021-09-21) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support

Tip: you can click/tap on a cell for more information.

Full support: Full support
No support: No support
: Experimental. Expect behavior to change in the future.

Legend