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Update and rename 040-.md to 040-MPEG2简单码流分析.md

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# MPEG2简单码流分析
今天使用Elecard Stream Eye打开了一个MPEG2视频编码的TS封装格式的文件。
分析的结果如图所示：
P帧：
像条：
![image](https://user-images.githubusercontent.com/87458342/127625268-a8af0a28-3164-4c07-ac83-b803a983e5ef.png)
宏块划分（只有一种）：
![image](https://user-images.githubusercontent.com/87458342/127625291-e808b56a-5c03-4a9a-ae31-fd2238442dda.png)
运动矢量：
![image](https://user-images.githubusercontent.com/87458342/127625318-5b12e760-e012-4c1d-95ec-cd5ae1106049.png)
宏块类型（红：I宏块；蓝：P宏块；黄：skip宏块）：
![image](https://user-images.githubusercontent.com/87458342/127625347-e6651517-12e9-42c6-982f-e88f60e32f64.png)
宏块大小（颜色越浅，数据量越大）：
![image](https://user-images.githubusercontent.com/87458342/127625376-5f64b66c-5f81-4912-acc4-50529a40bb83.png)
I帧：
宏块类型：
![image](https://user-images.githubusercontent.com/87458342/127625407-36aa020d-8f71-4482-8ea7-9ca2f24b2da9.png)