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RTCOutboundRtpStreamStats: qualityLimitationReason property - Web APIs | MDN
A string with one of the following values:
none
The quality is not limited.
cpu
The quality is primarily limited due to CPU load.
bandwidth
The quality is primarily limited due to congestion cues during bandwidth estimation, such as inter-arrival time and round-trip time.
other
The quality is primarily limited for a reason other than the above.
