update

coderTong · coderTong · commit a177a60a214e · 2022-01-19T09:57:57.000+08:00
diff --git a/音视频/2022AVFoundation/2022AVFoundation.md b/音视频/2022AVFoundation/2022AVFoundation.md
@@ -82,4 +82,13 @@ if ([self.captureSession canAddInput:videoInput]) {
 看看是否能支持聚焦
 
 - iPhone6的前置摄像头是不支持聚焦的.
-- iPhone6P 6s 一声 前置摄像头才支持聚焦
+- iPhone6P 6s 一声 前置摄像头才支持聚焦
+
+
+
+
+## lockForConfiguration
+
+因为配置时, 不能让多个对象对他进行更改, 所以要对该过程上锁
+
+[-AVCaptureDevice lockForConfiguration]
