VideoDecoder: decode() method
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
js
decode(chunk)
Parameters
chunk
-
An
EncodedVideoChunk
object representing a chunk of encoded video.
Return value
None (undefined
).
Exceptions
InvalidStateError
DOMException
-
Thrown if the
state
is notconfigured
. DataError
DOMException
-
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.
js
const responses = await downloadVideoChunksFromServer(timestamp);
for (const response of responses) {
const chunk = new EncodedVideoChunk({
timestamp: response.timestamp,
data: new Uint8Array(response.body),
});
decoder.decode(chunk);
}
Specifications
Specification |
---|
WebCodecs # dom-videodecoder-decode |
Browser compatibility
BCD tables only load in the browser