FFmpeg：开源引擎FFmpeg: The Open-Source Engine
学习目标LEARNING OBJECTIVES
学完你知道 FFmpeg 是什么、能干什么、为什么每个软件里都很可能有它。
概念说明CONCEPTS
一整套处理音视频的开源工具：转格式、裁切、合并、压制、抽音轨、截帧、推流；不做剪辑界面，只做处理，命令行为主。
官网 ffmpeg.org · GitHub github.com/FFmpeg/FFmpeg · 自带三条命令：ffmpeg / ffplay / ffprobe。
操作步骤STEPS
- macOS 跑 brew install ffmpeg（或官网包装 Windows）
- ffmpeg -version 验证
- 用 ffprobe 读一个素材的编码与分辨率
练习PRACTICE
动手任务
安装 FFmpeg（或确认已装），用 ffprobe 读任意一个素材的编码与分辨率。
自检清单
做完任务后逐条自查，全部能打勾才算过。
常见问题FAQ
剪映/达芬奇里也有它吗？
很可能——每个剪辑软件里，这一层多半就是它。
FFmpeg 能代替剪辑软件吗？
不能——它不做剪辑界面，只做处理；剪辑软件是给这一层套的壳，壳里是你的操作。
Learning Objectives学习目标
After this card you know what FFmpeg is, what it does, and why it very likely sits inside every editing app.
Concepts概念说明
A whole set of open-source tools for handling audio and video: convert, trim, join, compress, pull audio tracks, grab frames, stream. No editing UI — it only processes, mostly from the command line.
Site ffmpeg.org · GitHub github.com/FFmpeg/FFmpeg · three commands built in: ffmpeg / ffplay / ffprobe.
Steps操作步骤
- Install via brew install ffmpeg (or the official Windows build)
- Verify with ffmpeg -version
- Read one file's codec and resolution with ffprobe
Practice练习
Hands-on task
Install FFmpeg (or confirm it) and read one file's codec with ffprobe.
Self-check
Work through the task, then tick every line; all checked means you own this card.
FAQ常见问题
Do CapCut and Resolve contain it?
Very likely — inside every editing app, this layer is probably it.
Can FFmpeg replace an editing app?
No — it has no editing UI, it only processes. Editing apps are the shell around this layer; inside the shell, it's your operation.