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Bilibili Tech
Bilibili Tech
Feb 7, 2025 · Frontend Development

Building a WebRTC Video Call System: Signaling, Direct Connection, and Selective Forwarding

The article explains how to build a WebRTC video‑call system using standard APIs, detailing signaling via SDP exchange, direct peer connections, the transition to a selective‑forwarding server that forwards streams efficiently, and employing a data channel for RPC‑based room and stream management across web, Android, iOS, and Windows clients.

SDPSelective ForwardingSignaling
0 likes · 16 min read
Building a WebRTC Video Call System: Signaling, Direct Connection, and Selective Forwarding
Baidu Geek Talk
Baidu Geek Talk
Nov 15, 2023 · Mobile Development

Automated OC Code Refactoring Practice (Part 3): Data Item Read/Write Class Encapsulation and Call Site Adaptation

The third part of the series shows how Python scripts can automatically refactor Objective‑C code by encapsulating each data item’s read/write operations in static wrapper classes and rewriting over 600 call sites to use generated XXXSettingReader and XXXSettingWriter methods, achieving zero bugs.

AutomationCode RefactoringObjective‑C
0 likes · 11 min read
Automated OC Code Refactoring Practice (Part 3): Data Item Read/Write Class Encapsulation and Call Site Adaptation
ITPUB
ITPUB
Feb 26, 2020 · Mobile Development

How We Built a Scalable Mobile IM System for Travel Apps

This article details the design, architecture, and implementation of a mobile instant‑messaging system for a travel platform, covering data‑channel handling, subscription and UI rendering, message de‑duplication, local push, reconnection strategies, message‑line management, and a migration to WebSocket for improved performance.

Instant MessagingMobileWebSocket
0 likes · 16 min read
How We Built a Scalable Mobile IM System for Travel Apps
21CTO
21CTO
Nov 10, 2019 · Mobile Development

How We Built a Scalable Mobile IM System for a Travel App

This article details the design and implementation of a scalable mobile instant‑messaging system for a travel app, covering architecture, data‑channel handling, subscription mechanisms, UI rendering, message de‑duplication, local push strategies, reconnection logic, and future upgrades to WebSocket.

Instant MessagingMessage DeduplicationMobile
0 likes · 16 min read
How We Built a Scalable Mobile IM System for a Travel App