| CARVIEW |
Select Language
HTTP/2 301
content-length: 162
content-type: text/html
date: Tue, 14 Oct 2025 18:54:28 GMT
location: https://developer.mozilla.org/en-US/docs/Web/API/MediaStream/MediaStream
server: nginx
strict-transport-security: max-age=60; includeSubDomains
via: 1.1 google
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
HTTP/2 200
content-type: text/html
x-guploader-uploadid: AAwnv3LO2wmjPxBT-fW9VttkDfLoNGsv9_7fyYL-zX1nxYJ14E45i-STfxBDr4pULlYTeNRfLzyOZz4
cache-control: public, max-age=3600
expires: Tue, 14 Oct 2025 19:54:29 GMT
last-modified: Tue, 14 Oct 2025 01:06:21 GMT
etag: W/"7672d88ee99c1f7307d25fec0364c212"
x-goog-generation: 1760403981072851
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 137404
x-goog-meta-goog-reserved-file-mtime: 1760402419
x-goog-hash: crc32c=POPujw==, md5=dnLYjumcH3MH0l/sA2TCEg==
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: 5af94105ebebc3b6afd9d071f72fdd81
date: Tue, 14 Oct 2025 18:54:30 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
MediaStream: MediaStream() constructor - Web APIs | MDN
Toggle sidebar
MediaStream: MediaStream() constructor
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.
The MediaStream() constructor returns a newly-created MediaStream, which serves as a collection of media tracks, each represented by a MediaStreamTrack object.
If any parameters are given, the specified tracks are added to the new stream. Otherwise, the stream has no tracks.
Syntax
js
new MediaStream()
new MediaStream(stream)
new MediaStream(tracks)
Parameters
streamOptional-
A different
MediaStreamobject whose tracks are added to the newly-created stream automatically. The tracks are not removed from the original stream, so they're shared by the two streams. tracksOptional-
An
ArrayofMediaStreamTrackobjects, one for each track to add to the stream.
Return value
A newly-created MediaStream object, either empty, or containing the
tracks provided, if any.
Specifications
| Specification |
|---|
| Media Capture and Streams # dom-mediastream-constructor |
Browser compatibility
Loading…