Web/API/RTCRtpEncodingParameters/maxBitrate

The RTCRtpEncodingParameters dictionary's maxBitrate property specifies the maximum number of bits per second to allow a track encoded with this encoding to use.

Syntax

rtpEncodingParameters.maxBitrate = maxBitsPerSecond;

rtpEncodingParameters = {
  maxBitrate: maxBitsPerSecond
};

maxBitsPerSecond = rtpEncodingParameters.maxBitrate;

Value

An unsigned long integer value specifying the maximum bandwidth this encoding is permitted to use for a track of media it encodes in terms of bits per second. Other parameters may further reduce the bandwidth used by the track; for example, maxFramerate will, if set low enough, constrain the bandwidth as well.

In addition, there's no guarantee that the network interface can support the specified bandwidth, in which case the actual bandwidth will be lower.

This value is computed using the standard Transport Independent Application Specific Maximum (TIAS) bandwidth as defined by RFC 3890, section 6.2.2; this is the maximum bandwidth needed without considering protocol overheads from IP, TCP or UDP, and so forth.

Specifications

Specification	Status	Comment
WebRTC 1.0: Real-time Communication Between BrowsersThe definition of 'RTCRtpEncodingParameters.maxBitrate' in that specification.	Candidate Recommendation	Initial definition.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`maxBitrate`	Chrome Full support 67	Edge Full support ≤79	Firefox Full support 46	IE No support No	Opera ?	Safari ?	WebView Android Full support 67	Chrome Android Full support 67	Firefox Android Full support 46	Opera Android ?	Safari iOS ?	Samsung Internet Android Full support 9.0

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown