Posts in
19 posts
This article explores building a multi-platform SMTH BBS client (iOS/iPadOS/macOS) with SwiftUI, detailing MVVM architecture, dependency injection, pagination state management, SwiftUI best practices, and cross-platform adaptation strategies.
Mac-to-Android Pad screen casting architecture: virtual display capture, VideoToolbox encoding, VBR strategy, and HID reverse control.
Examines file structure, metadata, and conversion paths between Google Motion Photo and Apple Live Photo, with a two-way lossless-preferring scheme for HDR GainMap and Depth retention via a reusable Swift package.
End-to-end architecture of Android screen mirroring to Mac/iPhone: phone-side capture and hardware encoding, network transmission, receiver-side decoding, and Metal rendering. Covers reverse control, transport protocol, and latency optimization.
Apple's Vision framework combines hardware acceleration, ML optimization, and Swift concurrency to deliver high-performance computer vision for iOS. Covers architecture, face detection, text recognition, pose tracking, and production best practices.
A systematic breakdown of building an industrial-grade Mijia smart camera from three angles: hardware design, software architecture, and cloud services. Uses the PTZ indoor camera as the main thread.
Run DeepSeek locally on macOS with Ollama and connect it to VSCode via the Continue extension for AI-assisted coding.
A comprehensive introduction to the Matter smart home protocol covering its data model, commissioning flow, comparison to Xiaomi MIoT SPEC, and the new camera support in Matter 1.5.
A guide to installing and running ComfyUI on Apple Silicon Mac, including Python setup, PyTorch, dependencies, and troubleshooting.
A walkthrough of LeetCode 1631 (minimax path) using binary search + BFS/DFS, union-find (Kruskal), and adapted Dijkstra.
An app becomes a process when loaded. macOS executables use the Mach-O format with a Header, Load Commands, and Raw Segment Data (__TEXT, __DATA, __LINKEDIT). Fat Binaries bundle multiple architectures.
A guide to HTTP Live Streaming (HLS) protocol covering its architecture, file formats (TS and fMP4), playback modes (VOD and live streaming), security with FairPlay, and practical setup using mediastreamsegmenter and ffmpeg.
An introduction to FFmpeg covering installation, command-line syntax, transcoding, stream selection, filtergraphs, and the architecture of its core library modules.
An introduction to P2P technology covering NAT types, NAT traversal (hole punching), STUN and TURN servers, and how these enable efficient peer-to-peer live video streaming.
Explains how sound and images are digitized into audio and video through sampling, quantization, and encoding, covering audio codecs, YUV color spaces, H.264 byte streams, and FFmpeg usage.
A guide to generating all subsets of a set (power set) using three methods: incremental construction, recursive backtracking, and bit manipulation, with C++ examples for LeetCode 78.
Binary Search locates targets in ordered or monotonic spaces in O(log n) time. Covers templates, rotated arrays, 2D matrices, BSTs, and answer-space search techniques.
A comprehensive guide to iOS crashes covering their nature as exception control flow, common causes, capture mechanisms, investigation methods, and governance.
Step-by-step guide to setting up a macOS development environment with Homebrew, shell configuration, language runtimes, Git dual-identity setup, containers, and automated deployment.