In-Depth FFmpeg: From Encoding and Decoding Principles to Linux Compilation Practices

In-Depth FFmpeg: From Encoding and Decoding Principles to Linux Compilation Practices

In the field of audio and video processing technology, FFmpeg is a powerful and widely used open-source multimedia framework. It supports various encoding and decoding formats, providing developers with a rich set of tools and interfaces to handle audio and video data. Today, we will delve into the encoding and decoding technologies in FFmpeg, particularly … Read more

How to Get Started with Python Programming

How to Get Started with Python Programming

Reading this article will take about 5 minutes: How should one get started with Python programming? I remember encountering this question a few years ago. At that time, I randomly searched online and hastily picked up some books, only to find myself confused and struggling, taking many detours. If one does not follow the right … Read more

SIMD Acceleration of H.265 Decoding with WebAssembly FFmpeg

SIMD Acceleration of H.265 Decoding with WebAssembly FFmpeg

1. What is WebAssembly WebAssembly is a bytecode format, a concept that is not new, similar to JVM and .NET bytecode. What makes WebAssembly special? Browsers support running WebAssembly programs C, C++, and Rust programs can be directly compiled into WebAssembly bytecode It can be said that WebAssembly bridges the gap between the vast front-end … Read more

Data Types in Python

Data Types in Python

When discussing data types in Python, we must start with the standard data types. The standard data types in Python are as follows: Numeric Types: Numeric data types are used to store numerical values. They are immutable data types, meaning that changing a numeric data type will allocate a new object. In Python 2.X, there … Read more

Common Functions in C/C++: A Comprehensive Guide

Common Functions in C/C++: A Comprehensive Guide

In C/C++ courses and projects, the application of functions is crucial. Here, we have gathered and organized some commonly used functions in C/C++. We hope you can apply them frequently to gain proficiency. 1. Character Processing Functions This category of functions is used for processing individual characters, including character type testing and case conversion. Header … Read more

Beginner’s Guide to C Language: Key Points

Beginner's Guide to C Language: Key Points

In the previous lesson, we dismantled the greatest program in the world, claiming that mastering it means you have grasped 60% of C language. In this lesson, we will discuss some key points related to C language. Review of Last Lesson’s Assignment In the last class, we left an assignment. I wonder if everyone completed … Read more

C Language Programming Basics

··· Exam Countdown: 36 Days ··· ◣Attention Candidates◥ Scan to Join the Preparation Group for Further Studies Courses/Exam Information/Materials/Benefits, one-on-one Q&A in the group! Key Point 1: Characteristics of C Language Structure 1. A C program consists of functions, and there must be exactly one function named main. 2. A C language function consists of … Read more

18 Classic C Programs You Must Memorize

18 Classic C Programs You Must Memorize

1、/*Output the 9*9 multiplication table. There are 9 rows and 9 columns, with i controlling the rows and j controlling the columns.*/ #include “stdio.h” main() {int i,j,result; for (i=1;i<10;i++) { for(j=1;j<10;j++) { result=i*j; printf(“%d*%d=%-3d”,i,j,result);/*-3d means left-aligned, occupying 3 spaces*/ } printf(“\n”);/*Line break after each row*/ } } 2、/*Classical problem: There is a pair of rabbits, … Read more

Creating Holiday Greeting Cards with Python and Pillow

Creating Holiday Greeting Cards with Python and Pillow

Last week, my mom suddenly asked me, “Son, do you remember tomorrow is your aunt’s birthday?” I slapped my forehead and completely forgot about it! My aunt lives in another city, and we don’t keep in touch often, but every year on her birthday, she sends me red envelopes. I can’t afford to be rude … Read more

Create Cool Graphics with Python

Create Cool Graphics with Python

Sometimes, writing code doesn’t always have to be about complex data analysis or websites.You can also use Python to draw! Isn’t that a bit cool? Today, let’s use Python to draw a few simple and beautiful graphics. Although they look like works of art, they actually only require a few lines of code. We’ll talk … Read more