CustomVideoSource.swift

import AgoraRtcKit


/**
A custom video source for the AgoraRtcEngine. This class conforms to the AgoraVideoSourceProtocol and is used to pass the AR pixel buffer as a video source of the Agora stream.
*/
class CustomVideoSource: NSObject, AgoraVideoSourceProtocol {
   var consumer: AgoraVideoFrameConsumer?
   var rotation: AgoraVideoRotation = .rotation180 //Banuba frames are flipped compared to what Agora expects.


   func shouldInitialize() -> Bool { return true }


   func shouldStart() { }


   func shouldStop() { }


   func shouldDispose() { }


   func bufferType() -> AgoraVideoBufferType {
       return .pixelBuffer
   }


   func captureType() -> AgoraVideoCaptureType {
       return .camera
   }


   func contentHint() -> AgoraVideoContentHint {
       return .motion
   }


   func sendBuffer(_ buffer: CVPixelBuffer, timestamp: TimeInterval) {
       let time = CMTime(seconds: timestamp, preferredTimescale: 1000)
       consumer?.consumePixelBuffer(buffer, withTimestamp: time, rotation: rotation)
   }
}