聚合文章

设计师 Ricoui 的个人博客 | Rico的设计漫想

关于设计师的个人网站

About the Personal Website of a Designer

设计师 Ricoui 的个人博客 | Rico的设计漫想

写给设计师的前端自学指南

We developed brand positioning and design assets for the launch of a new colored water product.

FFmpeg

November 10th, 2023, FFmpeg 6.1 "Heaviside"

FFmpeg 6.1 "Heaviside", a new major release, is now available! Some of the highlights: libaribcaption decoder Playdate video decoder and demuxer Extend VAAPI support for libva-win32 on Windows afireqsrc audio source filter arls filter ffmpeg CLI new option: -readrate_initial_burst zoneplate video source filter command support in the setpts and asetpts filters Vulkan decode hwaccel, supporting H264, HEVC and AV1 color_vulkan filter bwdif_vulkan filter nlmeans_vulkan filter RivaTuner video decoder…

FFmpeg

December 12th, 2023, multi-threaded ffmpeg CLI tool

Thanks to a major refactoring of the ffmpeg command-line tool, all the major components of the transcoding pipeline (demuxers, decoders, filters, encodes, muxers) now run in parallel. This should improve throughput and CPU utilization, decrease latency, and open the way to other exciting new features. Note that you should not expect significant performance improvements in cases where almost all computational time is spent in a single component (typically video encoding).

FFmpeg

December 18th, 2023, IAMF support

The libavformat library can now read and write IAMF (Immersive Audio) files. The ffmpeg CLI tool can configure IAMF structure with the new -stream_group option. IAMF support was written by James Almer.

FFmpeg

January 3rd, 2024, native VVC decoder

The libavcodec library now contains a native VVC (Versatile Video Coding) decoder, supporting a large subset of the codec's features. Further optimizations and support for more features are coming soon. The code was written by Nuo Mi, Xu Mu, Frank Plowman, Shaun Loo, and Wu Jianhua.

FFmpeg

April 5th, 2024, FFmpeg 7.0 "Dijkstra"

A new major release, FFmpeg 7.0 "Dijkstra", is now available for download. The most noteworthy changes for most users are a native VVC decoder (currently experimental, until more fuzzing is done), IAMF support, or a multi-threaded ffmpeg CLI tool. This release is not backwards compatible, removing APIs deprecated before 6.0. The biggest change for most library callers will be the removal of the old bitmask-based channel layout API, replaced by the AVChannelLayout API allowing such features as cu…

FFmpeg

May 13th, 2024, Sovereign Tech Fund

The FFmpeg community is excited to announce that Germany's Sovereign Tech Fund has become its first governmental sponsor. Their support will help sustain the maintainance of the FFmpeg project, a critical open-source software multimedia component essential to bringing audio and video to billions around the world everyday.

FFmpeg

June 2nd, 2024, native xHE-AAC decoder

FFmpeg now implements a native xHE-AAC decoder. Currently, streams without (e)SBR, USAC or MPEG-H Surround are supported, which means the majority of xHE-AAC streams in use should work. Support for USAC and (e)SBR is coming soon. Work is also ongoing to improve its stability and compatibility. During the process we found several specification issues, which were then submitted back to the authors for discussion and potential inclusion in a future errata.

FFmpeg

September 11th, 2024, Coverity

The number of issues FFmpeg has in Coverity (a static analyzer) is now lower than it has been since 2016. Our defect density is less than one 30th of the average in OSS with over a million code lines. All this was possible thanks to a grant from the Sovereign Tech Fund.

FFmpeg

September 30th, 2024, FFmpeg 7.1 "Péter"

FFmpeg 7.1 "Péter", a new major release, is now available! A full list of changes can be found in the release changelog. The more important highlights of the release are that the VVC decoder, merged as experimental in version 7.0, has had enough time to mature and be optimized enough to be declared as stable. The codec is starting to gain traction with broadcast standardization bodies. Support has been added for a native AAC USAC (part of the xHE-AAC coding system) decoder, with the format start…

FFmpeg

August 22nd, 2025, FFmpeg 8.0 "Huffman"

A new major release, FFmpeg 8.0 "Huffman", is now available for download. Thanks to several delays, and modernization of our entire infrastructure, this release ended up being one of our largest releases to date. In short, its new features are: Native decoders: APV, ProRes RAW, RealVideo 6.0, Sanyo LD-ADPCM, G.728 VVC decoder improvements: IBC, ACT, Palette Mode Vulkan compute-based codecs: FFv1 (encode and decode), ProRes RAW (decode only) Hardware accelerated decoding: Vulkan VP9, VAAPI VVC, O…

FFmpeg

March 16th, 2026, FFmpeg 8.1 "Hoare"

A new minor release, FFmpeg 8.1 "Hoare", is now available for download. Here are some of the highlights: Decoders: xHE-AAC Mps212 (experimental) MPEG-H decoding via libmpeghdec EXIF Metadata Parsing LCEVC: support for parsing and forwarding metadata Vulkan compute-based codecs: ProRes encoding and decoding, DPX decoding D3D12: D3D12 H.264/AV1 encoding, scale_d3d12, mestimate_d3d12, deinterlace_d3d12 filters Rockchip H.264/HEVC hardware encoding IAMF: Projection mode Ambisonic Audio Elements muxi…

FFmpeg

June 24th, 2026, Ampere Server Donation

Ampere has generously donated a server to FFmpeg: an AmpereOne® (Mt. Mitchell) 2U system with 192 Arm cores, 512 GB of RAM, 24 NVMe bays and 2×25G networking, weighing in at 28 kg. Thank you, Ampere! To celebrate, Dascha (daschasara) answered FFmpeg's call for non-AI artwork and drew this piece for us: Artwork by Dascha (daschasara)

卓越笔记

RAG、知识库和上下文的区别和联系

在人工智能和大语言模型（LLM）的语境下，RAG、知识库和上下文是构建智能问答系统的三个核心概念。它们的目的都是为了让 AI 获取外部信息，但各自的角色、范围和工作阶段有所不同。核心概念定义 1. 知识库（Knowledge Base）本质：结构化信息管理系统，核心目标是知识的存储和检索形态：可以是结构化图谱/规则引擎，也可以是非结构化文档特点：静态存储系统，需要定期更新维护 2. RAG（Retrieval-Augmented Generation）本质：检索增强生成技术框架核心思想：让大模型在回答问题时，先从外部知识库中检索相关内容，再基于检索结果生成回答组成：由离线索引流水线（文档预处理存入向量库）和在线查询流水线（接收问题、检索、生成）组成 3. 上下文（Context）本质：当前对话或任务中传递给模型的文本信息特点：动态的、临时的信息载体作用：保障多轮对话连贯性，提供任务背景信息主要区别特性知识库 RAG 上下文角色数据存储系统检索+生成技术信息传递载体数据来源预先存储的文档/数据外部知识库当前对话或检索结果实时性需要定期更新 …

卓越笔记

IPv4和IPv6在位数和长度方面的主要区别

位数和长度对比 IPv4 位数：32位字节数：4字节地址数量：约43亿个（2³² ≈ 4.3×10⁹）表示方式：点分十进制（如：192.168.1.1）格式：共4段，每段0-255 IPv6 位数：128位字节数：16字节地址数量：约3.4×10³⁸个（几乎无限）表示方式：冒号分隔的十六进制（如：2001:0db8:85a3::8a2e:0370:7334）格式：共8组，每组4个十六进制数字关键差异长度对比：IPv6的地址长度是IPv4的4倍（128位 vs 32位）地址空间：IPv6的地址空间比IPv4大约10²⁸倍，可以为地球上每一粒沙子都分配多个IP地址表示方法： IPv4使用点分十进制，便于人类记忆 IPv6使用冒号十六进制，支持前导零省略和连续零组用"::"代替发展原因：IPv6的出现主要是为了解决IPv4地址枯竭问题，同时在安全性、QoS等方面进行了增强

卓越笔记

中级系统集成项目管理工程师考试辅导 skill

📋 项目简介本项目是专为备考中级系统集成项目管理工程师（软考中级）的考生设计的智能化考试辅导工具。基于 TRAE Skill 架构实现，提供30天科学学习计划、每日分值预测、记忆口诀速记、历年真题解析、8大类案例答题模板、必考法规汇总等核心功能。适用对象：系统集成企业项目经理、技术人员；备考软考中级的学员；需评职称或积分落户的人员。 🌟 核心功能功能模块说明 30天学习计划科学规划4阶段：基础入门→核心管理→专项深化→综合冲刺每日分值预测结合考纲分析各章节在上午/下午试卷中的预估分值记忆口诀 40+组原创记忆口诀，覆盖OSI模型、EVM计算、变更流程等高频考点智能问答六种考试辅助模式（学习/刷题/模考/案例/复盘/计划）学习记录自动追踪每日学习进度，记录薄弱知识点答题模板 8大类案例分析题标准答题套路与要点 📚 知识体系（第3版·18章）第一部分：IT技术基础第1章信息化发展 ★★ 第2章信息技术发展 ★★ 第3章信息技术服务 ★ 第4章信息系统架构 ★★ 第5章软件工程 ★★ 第6章数据工程 ★ 第二部分：项目管理核心第7章软硬件系统集…

卓越笔记

workbuddy 和 trae work 电脑端每天登录可以领积分，攒积分可以让它给你干活

我在用 TraeWork AI 办公平台，搞定各类任务，通过我的分享链接登录桌面端，新注册用户一次性获得 5000 积分！ https://www.trae.cn/work-fission/ WorkBuddy 是智能 AI 工作台。据《中国办公智能体平台市场研究报告2026》显示，WorkBuddy 已成为中国最受欢迎的效率 AI 智能体服务。 https://www.workbuddy.cn/ 当然也可以购买 plan 计划😁

卓越笔记

TraeWork 在 Windows 11 上，代码老是落盘困难甚至失败的解决办法

问题日志版本信息 Windows 11 专业版, 26200.9168 TraeWork CN（开了完全访问，非管理员模式打开）版本: 0.1.63 提交: 58969e6d8d9bc48666ba83679c408b2d23308078 日期: 2026-09-04T04:07:57.709Z Electron: 39.2.7-release.1.52.1 (aha) Node.js: 22.21.1 V8: 14.2.231.27-electron.0 OS: Windows_NT x64 10.0.26200 构建版本: 2.3.81345 设备ID: 3eec0e19080110cf0a3129105885c6ff6ce51f6b0c510909d8ba44d5c2269874 Web SDK Version: workspace:* Device Id: 3805862204308329 解决办法若要启用开发人员模式或访问其他设置，请执行以下作：打开Windows设置。搜索 “高级 ”或转到 “系统 > 高级”，然后滚动到“ 面向开发人员 ”部分。在“面向开发人…