VideoDecoder.decode()

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The decode() method of the VideoDecoder interface enqueues a control message to decode a given chunk of video.

Syntax

VideoDecoder.decode(chunk)

Parameters

chunk

An EncodedVideoChunk object representing a chunk of encoded video.

Return Value

Undefined.

Exceptions

DOMException InvalidStateError

Thrown if the state is not "configured".

DOMException DataError

Thrown if the chunk is unable to be decoded due to relying on other frames for decoding.

Examples

The following example demonstrates how to use the decode() method to decode EncodedVideoChunk objects created from encoded video data.

let responses = await downloadVideoChunksFromServer(timestamp);
for (let i = 0; i < responses.length; i++) {
  let chunk = new EncodedVideoChunk({
    timestamp: responses[i].timestamp,
    data: new Uint8Array ( responses[i].body )
  });
  decoder.decode(chunk);
}

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/VideoDecoder/decode