EncodedVideoChunk: EncodedVideoChunk() constructor
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Note: This feature is available in Dedicated Web Workers.
The EncodedVideoChunk()
constructor creates a new EncodedVideoChunk
object representing a chunk of encoded video.
Syntax
new EncodedVideoChunk(options)
Parameters
options
-
An object containing the following members:
type
-
Indicates if the chunk is a key chunk that does not rely on other frames for encoding. One of:
timestamp
-
An integer representing the timestamp of the video in microseconds.
duration
-
An integer representing the length of the video in microseconds.
data
-
An
ArrayBuffer
, aTypedArray
, or aDataView
containing the video data. transfer
-
An array of
ArrayBuffer
s thatEncodedVideoChunk
will detach and take ownership of. If the array contains theArrayBuffer
backingdata
,EncodedVideoChunk
will use that buffer directly instead of copying from it.
Examples
In the following example a new EncodedVideoChunk
is created.
const init = {
type: "key",
data: videoBuffer,
timestamp: 23000000,
duration: 2000000,
transfer: [videoBuffer],
};
chunk = new EncodedVideoChunk(init);
Specifications
Specification |
---|
WebCodecs # dom-encodedvideochunk-encodedvideochunk |
Browser compatibility
BCD tables only load in the browser