直播美颜sdk是目前比较热门的工具，其强大的美颜功能和趣味拍摄功能让用户们“爱不释手”。时至今日，美颜sdk甚至成了各大视频、直播、社交、拍摄平台的刚需，随着用户量的增多，一些问题也逐渐显现了出来，今天小编就为大家讲解两个直播美颜sdk的常见问题。

一、直播美颜sdk时下有哪些技术难题？
适配一直是美颜sdk中最难处理的问题。以安卓为例，有上千种不同型号的手机和版本，导致在安卓平台上，美颜sdk很难做到兼容所有设备。

二、运动物体检测
一般都没有把人脸单独提取出来做美颜，美颜sdk是通过肤色检测来确定美颜范围的。如果是在运动中做检测和跟踪，对性能的要求肯定高。如果追踪的比较紧，需要每帧都做检测，性能要求可定是非常高，以毫秒计。

三、影响直播美颜sdk速度的原因
1、网络环境
2、硬件环境

四、直播美颜sdk代码分析
//
// AppDelegate.m
// MHOpenDemo
//
// Created by Apple on 2021/5/31.
//

#import “AppDelegate.h”

@interface AppDelegate ()

@end

@implementation AppDelegate

• (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  // Override point for customization after application launch.
  return YES;
  }

#pragma mark - UISceneSession lifecycle

• (UISceneConfiguration *)application:(UIApplication *)application configurationForConnectingSceneSession:(UISceneSession *)connectingSceneSession options:(UISceneConnectionOptions *)options {
  // Called when a new scene session is being created.
  // Use this method to select a configuration to create the new scene with.
  return [[UISceneConfiguration alloc] initWithName:@“Default Configuration” sessionRole:connectingSceneSession.role];
  }

• (void)application:(UIApplication *)application didDiscardSceneSessions:(NSSet<UISceneSession *> *)sceneSessions {
  // Called when the user discards a scene session.
  // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
  // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
  }

@end