A knowledge-sharing platform for Sohu's technology products. As a leading Chinese internet brand with media, video, search, and gaming services and over 700 million users, Sohu continuously drives tech innovation and practice. We’ll share practical insights and tech news here.
This article explains how 3D Gaussian Splatting transforms ordinary video footage into high‑quality 3D reconstructions with minimal equipment, outlines the low‑cost workflow using ffmpeg and COLMAP, and discusses practical challenges and future possibilities for the technology.
This article explains how a self‑calibration system embeds markers in iOS rich‑text content, enabling a single pass to identify mentions, topics, and links, and shows how NSMutableAttributedString and YYKit’s custom attribute keys are used to store and parse these special elements efficiently.
This article introduces the Model Context Protocol (MCP) as an open standard for connecting large language models to external data and tools, outlines its core advantages, showcases a wide range of ready‑made services, and provides a detailed Python implementation that integrates Sentry bug‑tracking and APM data into AI assistants for real‑time analysis and reporting.
This article describes how a video review system combines multimodal CLIP models, image‑text feature alignment, and optimized vector‑search databases such as RedisSearch and Elasticsearch to detect prohibited content in real time and perform large‑scale historical recall, while addressing challenges of generalization, storage cost, and inference speed.
This article walks through implementing sophisticated like-button animations for a news client on HarmonyOS using ArkUI, compares the approach with Android's animation framework, explains key ArkUI APIs like animateTo, and provides detailed Kotlin and TypeScript code for property and Bezier curve animations.
This article explains the relationship between locks and multithreading on iOS, introduces various lock types such as NSRecursiveLock, NSConditionLock, OSSpinLock, os_unfair_lock, pthread_mutex, and @synchronized, demonstrates resource contention with code examples, and compares their performance and usage scenarios.
This article explains how Android handles SVG-like vector graphics using VectorDrawable and AnimatedVectorDrawable, covering their XML structures, supported tags, code examples, conversion from SVG, usage in layouts, and a detailed source code walkthrough of rendering and animation processes.
This article explains DRM fundamentals, the FairPlay workflow, key management methods using AVAssetResourceLoader and AVContentKeySession, tips for handling codec tags, and step‑by‑step guidance for downloading HLS videos with AVAssetDownloadTask and AVAggregateAssetDownloadTask on iOS.
This article details the design of a reusable, configurable lottery platform for a youth‑focused social app, covering business background, pain points, a modular data model, micro‑service architecture, stock pre‑allocation with optimistic and distributed locks, real‑time risk detection, over‑issue prevention, probability calculation, and future AI‑driven enhancements.
This article explains how to use Node‑API’s thread‑safe functions to asynchronously relay native file upload progress, completion, and error callbacks from native C/C++ threads to ArkTS JavaScript on HarmonyOS, covering API definitions, event‑loop integration, and practical implementation details with code examples.
