我尝试从AVCaptureVideoDataOutput和AVCaptureAudioDataOutput获取CMSampleBufferRef。AVCamRecorder.h#import@interfaceAVCamRecorder:NSObject{}@property(nonatomic,retain)AVCaptureVideoDataOutput*videoDataOutput;@property(nonatomic,retain)AVCaptureAudioDataOutput*audioDataOutput;@endAVCamRecorder.m#import"AVCa