RTCInboundRtpStreamStats: totalSquaredInterFrameDelay property

{{APIRef("WebRTC")}}

The totalSquaredInterFrameDelay property of the {{domxref("RTCInboundRtpStreamStats")}} dictionary indicates the sum of the square of each inter-frame delay between consecutively rendered frames. It is recorded after each frame is rendered.

The inter-frame delay variance be calculated from {{domxref("RTCInboundRtpStreamStats.totalInterFrameDelay","totalInterFrameDelay")}}, totalSquaredInterFrameDelay, and {{domxref("RTCInboundRtpStreamStats.framesRendered","framesRendered")}}, according to the formula: (totalSquaredInterFrameDelay - totalInterFrameDelay^2/ framesRendered)/framesRendered.

[!NOTE] The property is undefined for audio streams.

Value

A positive number.

Specifications

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Browser compatibility

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