Introduction to FFmpeg: Common API usage and C language development

Introduction to FFmpeg: Common API usage and C language development Understanding Related Concepts 1. Basic concepts of multimedia files 2. Quantitative encoding of audio 3. Time Base Environment Configuration Related Downloads Environment Configuration test Development Cases Processing logic and ...

Posted by baber_abbasi on Fri, 06 Mar 2020 19:05:22 -0800

C Language Chapter III README 1

**Framework** An overview of the 3.1C statement (statement describes a behavior, an instruction issued to a computer to perform an operation) 1. Expression statements An expression is followed by an';'to form an expression statement. Example: Add an existing variable definition: int a,b; The f ...

Posted by Boerboel649 on Thu, 05 Mar 2020 17:56:50 -0800

C++ implements full random encryption, parsing libraries, and complete code analysis

A friend recently asked me how to implement the random encryption library I wrote before. After discussing it, I promised him to write a completely random encryption and decryption library.Over the past few days, I have used my working hours to make changes in my original ideas, wrote a completely rando ...

Posted by John_S on Wed, 04 Mar 2020 16:51:33 -0800

The fourth day of vegetable learning python -- string object learning, slicing operation, function, global \ local variable

1, String object· 1,What is a string //Enclosed by single quotation mark, double quotation mark and triple quotation mark 2,Definition string s = 'today is friday' ss = "wo shi meinv" sss = """wo bu hui""" s1 = str("aaa") 3,Common methods for Strings: 1)'capitalize' #Capitalize the first l ...

Posted by jonahpup on Wed, 04 Mar 2020 06:25:24 -0800

Experiment report of sequence table (including complete code)

(1) Purpose of the experiment ① Master the structure characteristics and basic operation of linear table. ② Consolidate C related programming methods and techniques. ③ Learn to use sequence table to solve practical problems. (2) Experimental process ① Establish a sequence table, input n elements and out ...

Posted by Ju-Pao on Tue, 03 Mar 2020 21:34:58 -0800

Parameters of main function in C language

Article directory 1, Parameters of main function 2, Standard writing of C program 3, envp parameter 4, Homework after class 5, Copyright notice When the program is running, some need to take parameters, some do not take parameters, such as linux operating system commands, which are essentially C p ...

Posted by comcentury on Tue, 03 Mar 2020 20:00:47 -0800

Python top 10 syntax

Preface Python is a language that represents simple ideas. Its syntax is relatively simple and easy to use. However, it would be a mistake to overlook the subtlety and depth of Python syntax. This article carefully selected ten knowledge points that can best show the subtlety of Python syntax, and attached the detailed example code. If it can b ...

Posted by John Rowe on Sun, 01 Mar 2020 19:31:00 -0800

Analysis of IO format controlled by controller in C + +

background For the package from C language to C + +, the format control of output stream is a headache. Is the string format control of printf not good? Indeed, many C + + open-source libraries have implemented the format control of printf. Function signature is similar to format (const STD:: String & ...

Posted by Markto on Tue, 25 Feb 2020 21:29:25 -0800

Building a c + + environment for vscode development based on MinGW-w64 on win7 platform

1, Install plug-ins for vscode and cc + + 2, Install and configure MinGW-w64 1. Download and install Download MinGW-w64 After downloading, install. During installation, you can customize or default the installation directory. Options to be set during installation: Version: GCC version, select the ...

Posted by overlordhu on Tue, 25 Feb 2020 21:12:39 -0800

C + + details

Article directory Separation of implementation and declaration Do not use using namespace std; The enhancement of C + + to C language Key 1 references Notes for reference The nature of quotation Pointer reference Constant reference Member function call const to decorate object instance Construction ...

Posted by Jabop on Mon, 24 Feb 2020 23:27:01 -0800