VideoEncoder: isConfigSupported() static method - Web APIs | MDN
Syntax
js
VideoEncoder.isConfigSupported(config)
Parameters
config-
The dictionary object accepted by
VideoEncoder.configure
Return value
A Promise that resolves with an object containing the following members:
Exceptions
TypeError-
Thrown if the provided
configis invalid; that is, if doesn't have required values (such as an emptycodecfield) or has invalid values (such as a negativewidth)
Examples
The following example tests if the browser supports accelerated and un-accelerated versions of several video codecs.
js
const codecs = [
"avc1.420034",
"hvc1.1.6.L123.00",
"vp8",
"vp09.00.10.08",
"av01.0.04M.08",
];
const accelerations = ["prefer-hardware", "prefer-software"];
const configs = [];
for (const codec of codecs) {
for (const acceleration of accelerations) {
configs.push({
codec,
hardwareAcceleration: acceleration,
width: 1280,
height: 720,
bitrate: 2_000_000,
bitrateMode: "constant",
framerate: 30,
not_supported_field: 123,
});
}
}
for (const config of configs) {
const support = await VideoEncoder.isConfigSupported(config);
console.log(
`VideoEncoder's config ${JSON.stringify(support.config)} support: ${
support.supported
}`,
);
}
Specifications
| Specification |
|---|
| WebCodecs # dom-videoencoder-isconfigsupported |