val listener = object :MirrorSurfaceListener {
      override fun onSurfaceCreated(surface: Surface?, width: Int, height: Int) {
            ktvVideoLayout?.attachMirrorSurface(surface, width, height)   //连接多屏渲染引擎
     }

      override fun onSurfaceChanged(surface: Surface?, width: Int, height: Int) {
          ktvVideoLayout?.changeMirrorSurfaceSize(surface, width, height) // 调整视频画面缩放比
      }

     override fun onSurfaceDestroyed(surface: Surface?) {
         ktvVideoLayout?.detachMirrorSurface(surface) //断开与渲染引擎的连接
     }

 };
       

  /**
     * 
     * @param width 视频宽度
     * @param height 视频高度
     * @param pixelWidthHeightRatio 视频宽高比 ，一般设置为 (width*1.0f)/height即可
     */
     public void setVideoSize(int width, int height, float pixelWidthHeightRatio) {
            
    }

public interface MirrorSurfaceConnectionListener {
    void onSurfaceDestroyed(View parentView,IMirrorView childView,Surface surface);

    void onSurfaceCreated(View parentView,IMirrorView childView,Surface surface, int width, int height);

    void onSurfaceChanged(View parentView,IMirrorView childView,Surface surface, int width, int height);
}