adaptive bitrate

OPPO Kernel Craftsman

Apr 18, 2025 · Backend Development

Adaptive Bitrate (ABR) Streaming: Concepts, Protocols, Challenges, and Algorithms

Adaptive Bitrate (ABR) streaming dynamically selects among multiple video representations using protocols like HLS, DASH, and CMAF, leveraging bandwidth predictions and buffer metrics to balance quality and re‑buffering, while evolving through hybrid, buffer‑based, rate‑based, and machine‑learning algorithms for optimal user experience.

ABRBandwidth PredictionHLS

0 likes · 12 min read

Adaptive Bitrate (ABR) Streaming: Concepts, Protocols, Challenges, and Algorithms

Bilibili Tech

Jul 26, 2024 · Backend Development

Design and Architecture of a Self‑Developed Video Transcoding Core

The team built a custom video‑transcoding core atop FFmpeg libraries, replacing the command‑line tool with modular controllers, pipelines, and parallel tasks that dynamically adapt resolution, frame‑rate, and SEI handling for both low‑latency live streams and high‑throughput VOD, improving scalability and maintainability.

Backend DevelopmentFFmpegLive Streaming

0 likes · 11 min read

Design and Architecture of a Self‑Developed Video Transcoding Core

Bilibili Tech

Jan 13, 2023 · Cloud Computing

Design and Implementation of Bilibili's Low‑Latency Cloud Gaming Platform Using WebRTC

Bilibili built a cross‑platform cloud‑gaming service that leverages WebRTC with tuned jitter buffers, unordered data channels, adaptive input‑report rates, and a custom kernel driver to deliver sub‑100 ms latency, dynamic bitrate control, and haptic feedback, overcoming typical latency, stutter, and flexibility limitations of existing solutions.

Cloud GamingLow LatencyWebRTC

0 likes · 14 min read

Design and Implementation of Bilibili's Low‑Latency Cloud Gaming Platform Using WebRTC

Bilibili Tech

Aug 16, 2022 · Artificial Intelligence

Bilibili's Intelligent Adaptive Bitrate Algorithm: From Theory to Practice

Bilibili enhanced mobile video streaming by replacing standard ABR methods with an intelligent adaptive bitrate system that uses a real‑time QoE model, refined network‑speed preprocessing, long‑term feature analysis, decision‑tree‑based neural models, and personalized user modes to balance resolution, buffering, and data usage.

BilibiliPensieve algorithmQoE optimization

0 likes · 12 min read

Bilibili's Intelligent Adaptive Bitrate Algorithm: From Theory to Practice

DaTaobao Tech

Apr 13, 2022 · Artificial Intelligence

Machine‑Learning Based Bandwidth Prediction and Adaptive Streaming for Taobao Live: Concerto, OnRL, and Loki

Alibaba’s Taobao Live team replaced rule‑based bandwidth estimators with three machine‑learning solutions—Concerto, OnRL, and Loki—trained on over a million hours of global live‑stream data, achieving up to 13% throughput gain, threefold stall reduction, and up to 44% lower 95th‑percentile stalls, now deployed commercially.

Bandwidth Predictionadaptive bitratemachine learning

0 likes · 14 min read

Machine‑Learning Based Bandwidth Prediction and Adaptive Streaming for Taobao Live: Concerto, OnRL, and Loki

Youku Technology

Jun 29, 2020 · Backend Development

Youku Intelligent Bitrate (Smart Profile): Design, Implementation, and Optimization

Youku’s Intelligent Profile introduces a smart‑bitrate system that dynamically selects the optimal video quality using speed‑based, buffer‑based, hybrid and reinforcement‑learning strategies, replaces traditional ABR’s limited predictions, gathers client metrics for continuous offline analysis, and has already raised high‑definition playback above 90% while halving stall rates across mobile OTT and live streaming.

OptimizationQoEVideo Streaming

0 likes · 22 min read

iQIYI Technical Product Team

Jul 12, 2019 · Artificial Intelligence

Real-Time Evaluation System for Adaptive Bitrate (ABR) Algorithms and Controlled Bitrate Distribution

RESA is a real‑time evaluation platform that continuously tests multiple Adaptive Bitrate (ABR) algorithms on live user traffic, introduces a multi‑user QoE metric derived from viewing behavior, reveals trade‑offs between clarity and bandwidth, and proposes the RL‑based ABSbc algorithm to steer bitrate distribution and balance user experience with network cost.

ABRQoEStreaming

0 likes · 23 min read

Real-Time Evaluation System for Adaptive Bitrate (ABR) Algorithms and Controlled Bitrate Distribution

iQIYI Technical Product Team

Jun 29, 2018 · Cloud Computing

Optimizing Video Playback Experience: Adaptive Bitrate, AI‑Driven ABS, and CDN Strategies from iQIYI

At the China Video Consumption User Experience Summit, iQIYI detailed how its AI‑driven adaptive bitrate streaming, proprietary HCDN architecture, hotspot prediction and AI‑upscaling technologies collectively reduce stalling, shift traffic away from peak periods, and deliver higher‑quality, cost‑effective playback across devices, from standard video to 8K VR.

AI optimizationCDNVideo Streaming

0 likes · 10 min read

Optimizing Video Playback Experience: Adaptive Bitrate, AI‑Driven ABS, and CDN Strategies from iQIYI