Programmer Group

The previous article introduced YUV format and gave an example of YUYV422 to RGB24. In fact, FFmpeg has a function dedicated to image format conversion. This article introduces how to use FFmpeg conversion, because AVFrame structure is also used in conversion, so AVFrame will also be introduced here. AVFrame is an important structure in FFmpe ...

We learned the simple use of XPath before. Refer to: https://www.cnblogs.com/minseo/p/15502584.html Today, let's practice using XPath to analyze the Douban film ranking. This time, we practice obtaining the new film ranking information of the film ranking. The content obtained in the exercise is the url, film name and director name of the new f ...

Importance of logsThe role of log is very important. The log can record the user's operation and program exceptions, and can also provide a basis for data analysis. The significance of log is to record errors in the running process of the program, facilitate maintenance and debugging, quickly locate errors and reduce maintenance costs. Every pr ...

Introduction Good morning, everyone—— Do you miss me? Mu Muzi is coming. Today, I will put a big move on the line for you! Just learned to record video, and then the dynamic display of the effect is finally perfectly recorded! Today, follow Xiaobian to update a wave of game series we are looking forward to ~ complete informatio ...

1. General itk::PointSet is a base class that represents geometry in the form of point sets in n-dimensional space. It is the base class of the necessary methods to provide the set of operation points for itk::Mesh. Points have values associated with them, and the types of these values are defined by the template parameters of the itk::Poi ...

1, Overview Let's take a look at this comment in the source code. Let's try to extract some information from it: /** * Doubly-linked list implementation of the {@code List} and {@code Deque} * interfaces. Implements all optional list operations, and permits all * elements (including {@code null}). * * <p>All of the operations perf ...

2021-11-04 swipe questions and punch in every day Force buckle - binary tree 102. Sequence traversal of binary tree and Sword finger Offer 32 - II. Print binary tree II from top to bottom To give you a binary tree, please return the node values obtained by traversing in sequence. (that is, access all nodes from left to right layer by layer). ...

A change of blogger (thanks for reading): at first, blogging was just a whim. It was just to help review the knowledge points. I'm glad that my blog can be liked by everyone. However, recently, I deeply feel that writing a long blog is really too tired, and I have received a lot of feedback from fans during this period. It is suggested to pick ...

This blog shares with you the knowledge about the operation of C language files, exchanges with each other and makes common progress What is a file? The code we wrote earlier uses "variables", or memory Memory characteristics Small capacity, speed block, data loss after power failure, relatively expensive But memory can't ...

catalogue 1. css and js are two ways to realize div right shift 1000px animation? 2. What are the differences among visibility, display and opacity? 3. Single line truncation css?   4. flex layout? 5，flex: 1？ 6. What is the difference between transition, transform and translate? 7. How to draw a 0.5px border? 8. Talk about BFC? ...