//
//  SampleHandler.swift
//  BroadcastExtension
//
//  Copyright © 2018-2019 Twilio. All rights reserved.
//

import Accelerate
import TwilioVideo
import ReplayKit
// MARK: SampleHandlerDelegate Declaration
protocol SampleHandlerDelegate: AnyObject {

  /**
   This method delivers the pixel buffer of the current frame seen by the device's camera.
   */
  func didOutput(pixelBuffer: CVPixelBuffer)
}

class SampleHandler: RPBroadcastSampleHandler {

    // MARK: SampleHandlerDelegate
    weak var delegate: SampleHandlerDelegate?
    

    func captureOutput(sampleBuffer: CMSampleBuffer) {
      //emre keypoint
      // Converts the CMSampleBuffer to a CVPixelBuffer.
      let pixelBuffer: CVPixelBuffer? = CMSampleBufferGetImageBuffer(sampleBuffer)

      guard let imagePixelBuffer = pixelBuffer else {
        return
      }

      // Delegates the pixel buffer to the ViewController.
      delegate?.didOutput(pixelBuffer: imagePixelBuffer)
    }
    
    override func processSampleBuffer(_ sampleBuffer: CMSampleBuffer, with sampleBufferType: RPSampleBufferType) {
        //emre keypoint
        switch sampleBufferType {
        case RPSampleBufferType.video:
            videoSource?.processFrame(sampleBuffer: sampleBuffer)
            captureOutput(sampleBuffer: sampleBuffer)
            break

        case RPSampleBufferType.audioApp:
        /*
            if (SampleHandler.kAudioSampleType == RPSampleBufferType.audioApp) {
                ExampleCoreAudioDeviceCapturerCallback(audioDevice, sampleBuffer)
            }*/
            break

        case RPSampleBufferType.audioMic:
            /*
            if (SampleHandler.kAudioSampleType == RPSampleBufferType.audioMic) {
                ExampleCoreAudioDeviceCapturerCallback(audioDevice, sampleBuffer)
            }*/
            break
        @unknown default:
            break
        }
    }
}