| CARVIEW |
Select Language
HTTP/2 200
content-type: text/html
x-guploader-uploadid: AAwnv3JRfCGejkwNoDNzwxN9YBNBglGawli6dGWWHZiNsd25wZpSj03Skhk3xVUZaNAlgSy1
cache-control: public, max-age=3600
expires: Tue, 14 Oct 2025 01:04:07 GMT
last-modified: Fri, 10 Oct 2025 01:05:34 GMT
etag: W/"fbcaa1ce45324341d68ca99a06a526d3"
x-goog-generation: 1760058334410764
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 139606
x-goog-meta-goog-reserved-file-mtime: 1760056845
x-goog-hash: crc32c=NZiCug==, md5=+8qhzkUyQ0HWjKmaBqUm0w==
x-goog-storage-class: STANDARD
accept-ranges: none
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
alt-svc: clear
referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
strict-transport-security: max-age=63072000
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; script-src-elem 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; style-src 'report-sample' 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' developer.allizom.org bcd.developer.allizom.org bcd.developer.mozilla.org updates.developer.allizom.org updates.developer.mozilla.org https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://incoming.telemetry.mozilla.org https://observatory-api.mdn.allizom.net https://observatory-api.mdn.mozilla.net https://api.github.com/search/issues stats.g.doubleclick.net https://api.stripe.com; font-src 'self'; frame-src 'self' interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net mdn.github.io live-samples.mdn.mozilla.net live-samples.mdn.allizom.net *.mdnplay.dev *.mdnyalp.dev *.play.test.mdn.allizom.net https://v2.scrimba.com https://scrimba.com jsfiddle.net www.youtube-nocookie.com codepen.io survey.alchemer.com https://js.stripe.com; img-src 'self' data: *.githubusercontent.com *.googleusercontent.com *.gravatar.com mozillausercontent.com firefoxusercontent.com profile.stage.mozaws.net profile.accounts.firefox.com developer.mozilla.org mdn.dev interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net wikipedia.org upload.wikimedia.org https://mdn.github.io/shared-assets/ https://mdn.dev/ https://*.google-analytics.com https://*.googletagmanager.com www.gstatic.com; manifest-src 'self'; media-src 'self' archive.org videos.cdn.mozilla.net https://mdn.github.io/shared-assets/; child-src 'self'; worker-src 'self';
x-frame-options: DENY
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
x-cloud-trace-context: f176b4863211dfec18e1b43b0bfcf500
date: Tue, 14 Oct 2025 00:04:07 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
MediaTrackSupportedConstraints: sampleSize property - Web APIs | MDN
Toggle sidebar
MediaTrackSupportedConstraints: sampleSize property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The MediaTrackSupportedConstraints dictionary's
sampleSize property is a read-only Boolean value which is
present (and set to true) in the object returned by
MediaDevices.getSupportedConstraints() if and only if the
user agent supports the sampleSize constraint. If the
constraint isn't supported, it's not included in the list, so this value will never be
false.
You can access the supported constraints dictionary by calling
navigator.mediaDevices.getSupportedConstraints().
Value
This property is present in the dictionary (and its value is always true)
if the user agent supports the sampleSize constraint. If the property isn't
present, this property is missing from the supported constraints dictionary, and you'll
get undefined if you try to look at its value.
Examples
<div id="result"></div>
#result {
font:
14px "Arial",
sans-serif;
}
js
const result = document.getElementById("result");
const supported = navigator.mediaDevices.getSupportedConstraints().sampleSize;
result.textContent = supported ? "Supported!" : "Not supported!";
Result
Specifications
| Specification |
|---|
| Media Capture and Streams # dom-mediatrackconstraintset-samplesize |
Browser compatibility
Loading…