WebRTC API add

files/en-us/web/api/webrtc_api/index.md

@@ -114,6 +114,8 @@ These interfaces, dictionaries, and types are used to set up, open, and manage W
   - : The state of the `RTCIceTransport` has changed.
 - {{domxref("RTCSctpTransport.statechange_event", "statechange")}}
   - : The state of the `RTCSctpTransport` has changed.
+- {{DOMxRef("DedicatedWorkerGlobalScope.rtctransform_event", "rtctransform")}}
+  - : An encoded video or audio frame is ready to process using a transform stream in a worker.
 
 #### Types
 
@@ -149,6 +151,33 @@ These interfaces and events are related to interactivity with Public-Switched Te
 - {{domxref("RTCDTMFSender.tonechange_event", "tonechange")}}
   - : Either a new {{Glossary("DTMF")}} tone has begun to play over the connection, or the last tone in the `RTCDTMFSender`'s {{domxref("RTCDTMFSender.toneBuffer", "toneBuffer")}} has been sent and the buffer is now empty. The event's type is {{domxref("RTCDTMFToneChangeEvent")}}.
 
+### Encoded Transforms
+
+These interfaces and events are used to process incoming and outgoing encoded video and audio frames using a transform stream running in a worker.
+
+#### Interfaces
+
+- {{DOMxRef("RTCRtpScriptTransform")}}
+  - : An interface for inserting transform stream(s) running in a worker into the RTC pipeline.
+- {{DOMxRef("RTCRtpScriptTransformer")}}
+  - : The worker-side counterpart of an `RTCRtpScriptTransform` that passes options from the main thread, along with a readable stream and writeable stream that can be used to pipe encoded frames through a {{DOMxRef("TransformStream")}}.
+- {{DOMxRef("RTCEncodedVideoFrame")}}
+  - : Represents an encoded video frame to be transformed in the RTC pipeline.
+- {{DOMxRef("RTCEncodedAudioFrame")}}
+  - : Represents an encoded audio frame to be transformed in the RTC pipeline.
+
+#### Properties
+
+- {{DOMxRef("RTCRtpReceiver.transform")}}
+  - : A property used to insert a transform stream into the receiver pipeline for incoming encoded video and audio frames.
+- {{DOMxRef("RTCRtpSender.transform")}}
+  - : A property used to insert a transform stream into the sender pipeline for outgoing encoded video and audio frames.
+
+#### Events
+
+- {{DOMxRef("DedicatedWorkerGlobalScope.rtctransform_event", "rtctransform")}}
+  - : An RTC transform is ready to run in the worker, or an encoded video or audio frame is ready to process.
+
 ## Guides
 
 - [Introduction to WebRTC protocols](/en-US/docs/Web/API/WebRTC_API/Protocols)
@@ -167,6 +196,8 @@ These interfaces and events are related to interactivity with Public-Switched Te
   - : This guide covers how you can use a peer connection and an associated {{DOMxRef("RTCDataChannel")}} to exchange arbitrary data between two peers.
 - [Using DTMF with WebRTC](/en-US/docs/Web/API/WebRTC_API/Using_DTMF)
   - : WebRTC's support for interacting with gateways that link to old-school telephone systems includes support for sending DTMF tones using the {{DOMxRef("RTCDTMFSender")}} interface. This guide shows how to do so.
+- [Using WebRTC Encoded Transforms](/en-US/docs/Web/API/WebRTC_API/Using_Encoded_Transforms)
+  - : Xxxxxx
 
 ## Tutorials