RTCOutboundRtpStreamStats: nackCount property

{{APIRef("WebRTC")}}

The nackCount property of the {{domxref("RTCOutboundRtpStreamStats")}} dictionary is a numeric value indicating the number of times the {{domxref("RTCRtpSender")}} described by this object received a NACK packet from the remote receiver.

A NACK (Negative ACKnowledgement, also called "Generic NACK") packet is used by the {{domxref("RTCRtpReceiver")}} to inform the sender that one or more {{Glossary("RTP")}} packets it sent were lost in transport.

Value

An integer value indicating how many times the sender received a NACK packet from the receiver, indicating the loss of one or more packets.

Specifications

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Browser compatibility

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