RTCOutboundRtpStreamStats.keyFramesEncoded - add

files/en-us/web/api/rtcoutboundrtpstreamstats/keyframesencoded/index.md

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+---
+title: "RTCOutboundRtpStreamStats: keyFramesEncoded property"
+short-title: keyFramesEncoded
+slug: Web/API/RTCOutboundRtpStreamStats/keyFramesEncoded
+page-type: web-api-instance-property
+browser-compat: api.RTCStatsReport.type_outbound-rtp.keyFramesEncoded
+---
+
+{{APIRef("WebRTC")}}
+
+The **`keyFramesEncoded`** property of the {{domxref("RTCOutboundRtpStreamStats")}} dictionary represents the total number of key frames successfully encoded in this RTP media stream.
+This includes, for example, key frames in VP8 ({{rfc("6386")}}) or IDR-frames in H.264 ({{rfc("6184")}}).
+
+Note that the number of delta frames is calculated by subtracting this value from the total number of frames ({{domxref("RTCOutboundRtpStreamStats.framesEncoded","framesEncoded")}} - `keyFramesEncoded`).
+
+> [!NOTE]
+> The value does not exist for audio.
+
+## Value
+
+A positive integer.
+
+## Specifications
+
+{{Specifications}}
+
+## Browser compatibility
+
+{{Compat}}