RTCRtpTransceiver: mid property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

The read-only RTCRtpTransceiver interface's mid property specifies the negotiated media ID (mid) which the local and remote peers have agreed upon to uniquely identify the stream's pairing of sender and receiver.

Value

A string which uniquely identifies the pairing of source and destination of the transceiver's stream. Its value is taken from the media ID of the SDP m-line. This value is null if negotiation has not completed.

Specifications

Specification
WebRTC: Real-Time Communication in Browsers
# dom-rtptransceiver-mid

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
mid

Legend

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Full support
Full support

See also