text: //
  //  SGPacket+Internal.h
  //  SGPlayer iOS
  //
  //  Created by Single on 2018/10/23.
  //  Copyright © 2018 single. All rights reserved.
  //
  
  #import "SGPacket.h"
  #import "SGCodecDescriptor.h"
  
  @interface SGPacket ()
  
  /**
   *
   */
  + (instancetype)packet;
  
  /**
   *
   */
  @property (nonatomic, readonly) AVPacket *core;
  
  /**
   *
   */
  @property (nonatomic, strong) SGCodecDescriptor *codecDescriptor;
  
  /**
   *
   */
  - (void)fill;
  
  @end
  