Python知识点：示例1：展示YUV420SP数据（Python版本）

 import cv2

    
 import numpy as np
    
 import argparse
    
  
    
 class ShowYUV:
    
     def __init__(self, filename, size):
    
     self.height, self.width = size
    
     self.frame_len = int(self.width * self.height * 3 / 2)
    
     self.f = open(filename, 'rb')
    
     self.shape = (int(self.height*1.5), self.width)
    
  
    
     def read_raw(self):
    
     try:
    
         raw = self.f.read(self.frame_len)
    
         yuv = np.frombuffer(raw, dtype=np.uint8)