Where can add or enable face detect in this project?

[kikokuo]

Hello,
I using this project to implement live streaming app. It's work great.
But I need face detect function to add some specail filter for user.
If I want to add AVCaptureMetadataOutput to support face detect, where is easy to add it?
Or what suggest do you prefer??

[hongkong792]

您好，我已收到您的邮件，感谢您对我的支持！香港回复

[kikokuo]

嗨:
有找到一個interface 如底下程式碼 感覺就是用來作face detection的interface
不過程式碼位於GPUIMAGEVIDEOCAMERA.m
沒有特地打開這個callback
是不是要自己打開這個interfcae的callback?
還是有甚麼建議作法呢?
謝謝

//Delegate Protocal for Face Detection.
@protocol GPUImageVideoCameraDelegate

@optional

• (void)willOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer;
  @EnD