FUCamera采集视频，实现FUCameraDelegate 代理方法 ``` - (void)didOutputVideoSampleBuffer:(CMSampleBufferRef)sampleBuffer { CVPixelBufferRef pixelBuffer = (CVPixelBufferRef)CMSampleBufferGetImageBuffer(sampleBuffer) ;     CVPixelBufferLockBaseAddress(pixelBuffer, 0); [self.beautyManager processAgoraWithPixelBuffer:pixelBuffer]; [self.consumerconsumePixelBuffer:pixelBuffer withTimestamp:CMSampleBufferGetPresentationTimeStamp(sampleBuffer) rotation:AgoraVideoRotationNone]; CVPixelBufferUnlockBaseAddress(pixelBuffer, 0); } ```