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.
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.
js
decode(chunk)
chunk
An EncodedVideoChunk
object representing a chunk of encoded video.
None (undefined
).
InvalidStateError
DOMException
Thrown if the state
is not configured
.
DataError
DOMException
Thrown if the chunk
is unable to be decoded due to relying on other frames for decoding.
The following example demonstrates how to use the decode()
method to decode EncodedVideoChunk
objects created from encoded video data.
js
const responses = await downloadVideoChunksFromServer(timestamp); for (const response of responses) { const chunk = new EncodedVideoChunk({ timestamp: response.timestamp, type: response.key ? "key" : "delta", data: new Uint8Array(response.body), }); decoder.decode(chunk); }
Specification |
---|
WebCodecs # dom-videodecoder-decode |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
decode |
94 | 94 | No | No | 80 | 16.4 | 94 | 94 | No | 66 | 16.4 | 17.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/VideoDecoder/decode