RTP | BestHub

OPPO Kernel Craftsman

Nov 29, 2024 · Frontend Development

WebRTC Audio‑Video Synchronization: Principles, Standards, and Implementation Details (Part 1)

The article explains WebRTC audio‑video synchronization by detailing the ITU‑R BT.1359‑1 standard, describing a synchronizer that computes target delays from desired and packet‑pair delays, applying bounded adjustments via sliding‑average filtering, and outlining a hardware method for measuring resulting latency.

NTPRTPReal-time Communication

0 likes · 11 min read

WebRTC Audio‑Video Synchronization: Principles, Standards, and Implementation Details (Part 1)

58 Tech

Jun 16, 2022 · Artificial Intelligence

Backend Architecture and Performance Optimization of an AI Interview Robot

This article details the backend architecture, dialogue engine design, resource estimation, and performance optimization techniques of an AI interview robot used in 58.com’s recruitment platform, illustrating how multi‑branch dialogue flows, RTP communication, session management, and monitoring enable scalable, stable, and efficient online interview services.

AIDialogue EngineInterview Robot

0 likes · 17 min read

Backend Architecture and Performance Optimization of an AI Interview Robot

Tencent Architect

Apr 8, 2022 · Fundamentals

How WebRTC Implements Video NACK: A Deep Dive into RTP Retransmission

This article provides a comprehensive walkthrough of WebRTC's video sender NACK implementation, covering the underlying ACK/NACK concepts, RFC4585 retransmission types, and the three-step process of storing RTP packets, handling RTCP NACK messages, and retransmitting lost media with priority handling.

NACKRTPReal-time Communication

0 likes · 5 min read

How WebRTC Implements Video NACK: A Deep Dive into RTP Retransmission

58 Tech

Dec 28, 2020 · Backend Development

Implementation of SIP‑Based DTMF Signal Capture for Intelligent Voice Robots

This article explains how an intelligent voice robot leverages TTS and SIP to convert server alerts into spoken notifications, detailing the end‑to‑end workflow, DTMF transmission methods, SIP detection techniques, SDP media negotiation, and RTP‑based DTMF parsing to enable reliable key‑press handling.

DTMFRTPSIP

0 likes · 8 min read

Implementation of SIP‑Based DTMF Signal Capture for Intelligent Voice Robots

58 Tech

Sep 16, 2020 · Backend Development

Analysis of 58.com Intelligent Voice Robot Backend Architecture

The article reviews the design and implementation of 58.com’s intelligent voice robot backend, detailing its four‑layer architecture, SIP/SDP/RTP protocols, multi‑round voice interaction flow, algorithm service modularization, SIP scheduling optimizations, and Java thread‑pool system tuning for high‑concurrency scenarios.

Java thread poolRTPSIP

0 likes · 13 min read

Analysis of 58.com Intelligent Voice Robot Backend Architecture

iQIYI Technical Product Team

Jul 31, 2020 · Backend Development

Technical Exploration of iQIYI's Qixiu Live Streaming System

iQIYI’s Qixiu platform supports both single‑host RTMP‑based ordinary live streams and multi‑host UDP‑RTP link‑mic sessions by using an enhanced WebRTC (woogeen) stack with a client SDK, load‑aware MCU nodes, and backend services that handle signaling, mixing, transcoding, adaptive bitrate, echo cancellation, and fault‑tolerant deployment, while outlining future improvements such as real‑time MCU switching and mobile network handover.

Live StreamingOptimizationRTMP

0 likes · 13 min read

Technical Exploration of iQIYI's Qixiu Live Streaming System

Tencent Cloud Developer

Mar 19, 2020 · Artificial Intelligence

Real-Time Voice Communication Technologies and AI Enhancements in Tencent Meeting

Shang Shidong outlines Tencent Meeting’s shift from analog PSTN to IP‑based VoIP, using H.323, SIP, RTP/UDP and the Opus codec, while AI‑driven super‑resolution, deep‑learning packet‑loss concealment, advanced noise reduction, and speech‑music classification boost audio quality, complemented by reference‑free MOS assessment and future 5G‑enabled cloud, IoT and WebRTC integration.

AIAudio ProcessingRTP

0 likes · 30 min read

Real-Time Voice Communication Technologies and AI Enhancements in Tencent Meeting

360 Smart Cloud

Sep 12, 2019 · Fundamentals

Overview of GB28181 National Video Surveillance Standard and Its SIP‑Based Implementation

This article introduces the GB28181 national video surveillance standard, explains its SIP‑based signaling architecture, details the SIP methods and message flows, describes the system components and hierarchical deployment, and outlines the registration and real‑time streaming processes required for implementation.

GB28181ProtocolRTP

0 likes · 10 min read

Overview of GB28181 National Video Surveillance Standard and Its SIP‑Based Implementation

58 Tech

Apr 23, 2019 · Fundamentals

Implementation Principles of Real-Time Audio/Video Service

This article explains how WebRTC-based real-time audio/video uses P2P and server‑relay modes, details the discovery and tracing of rotation metadata issues, describes SDP and RTP header extensions for video orientation, and shows how to map this information to ffmpeg rotation parameters.

FFmpegRTPReal-time Communication

0 likes · 5 min read

Implementation Principles of Real-Time Audio/Video Service

58 Tech

Jan 24, 2019 · Mobile Development

Integrating WebRTC Real‑Time Audio/Video with WeChat Mini Programs: Architecture and Implementation Details

This article describes a comprehensive solution for enabling real‑time audio and video communication between existing WebRTC endpoints and WeChat Mini Programs by introducing a WebRTC Gateway and Streaming Server, detailing architecture, signaling flows, media conversion, performance optimizations, and session reliability mechanisms.

RTMPRTPReal-time Communication

0 likes · 12 min read

Integrating WebRTC Real‑Time Audio/Video with WeChat Mini Programs: Architecture and Implementation Details

Architecture Digest

Jul 21, 2016 · Fundamentals

Design and Implementation of Low‑Latency Real‑Time Streaming Protocols: RTP, RTCP, and Packet‑Loss Solutions

The article explains why TCP‑based protocols cannot meet low‑latency requirements for live‑streaming conferences and introduces RTP, RTCP, jitter, round‑trip time, and three packet‑loss mitigation strategies—retransmission, forward error correction, and cross‑transport—along with a brief overview of DCCP for congestion control.

DCCPFECRTCP

0 likes · 14 min read

Design and Implementation of Low‑Latency Real‑Time Streaming Protocols: RTP, RTCP, and Packet‑Loss Solutions