RTCIceCandidate: sdpMLineIndex 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 sdpMLineIndex property on the RTCIceCandidate interface
is a zero-based index of the m-line describing the media associated with the candidate.
This property can be configured by specifying the value of the sdpMLineIndex property in the candidateInfo options object that is passed to the RTCIceCandidate() constructor.
If you call the constructor with an m-line string instead of the options object, the value of sdpMLineIndex is extracted from the specified candidate m-line string.
Value
A number containing a 0-based index into the set of m-lines providing media descriptions,
indicating which media source is associated with the candidate, or null if no such association is available.
Note: Attempting to add a candidate (using
addIceCandidate()) that has a
value of null for either sdpMid or
sdpMLineIndex will throw a TypeError exception.
Specifications
| Specification |
|---|
| WebRTC: Real-Time Communication in Browsers # dom-rtcicecandidate-sdpmlineindex |
Browser compatibility
BCD tables only load in the browser