Kuaishou’s Special Short‑Video Transcoding Tier for Jackie Chan: Technical Overview and Quality Enhancements

On October 27, Jackie Chan opened the world’s first short‑video social account on Kuaishou, instantly attracting billions of views and millions of fans, prompting the platform’s audio‑video team to launch a special transcoding tier to ensure the highest visual quality for his videos.

Why a special short‑video transcoding tier? The massive audience and demanding visual expectations required a customized high‑quality on‑demand stream, leading the team to create a dedicated high‑definition playback profile and strategy.

Video processing and compression are core to short‑video transcoding: uploaded videos are re‑encoded on the server to smaller files, while algorithms such as DeArt and DeBlur remove artifacts, reduce noise, and enhance colors, preserving quality under lower bitrates.

The project differs from ordinary short‑video workflows: lower daily upload volume, relaxed timeliness, modest concurrency, but very high user quality expectations, justifying the use of cutting‑edge enhancement and aggressive compression with minimal cost impact.

Technical deep‑processing steps

The pipeline begins with CAPE (Content Adaptive Processing and Encoding) analysis, which determines optimal processing logic for each video. Intelligent analysis extracts content features, complexity, and scene classification, then triggers enhancement modules (e.g., DeArt, DeBlur) to improve clarity.

Next, a custom compression plan is generated, deciding resolution (1080p vs 720p), frame rate (e.g., 60 fps for fast‑action scenes), and bitrate to achieve “hair‑split” sharpness.

After enhancement and compression, the video undergoes high‑priority processing, automatic quality monitoring, and finally a tailored delivery strategy that adapts to device type and network conditions, ensuring smooth, crystal‑clear playback.

Trigger mechanism of the special tier

Within Kuaishou, the special tier is activated by specific user accounts and associated delivery policies, with real‑time notifications and monitoring to guarantee service quality.

Since its launch, many official accounts have adopted the tier, consistently achieving noticeable quality improvements across diverse content.

Rapid collaboration

The end‑to‑end workflow—from decision to launch—was completed in 20 hours, showcasing the team’s engineering and algorithmic expertise, and building on previous successes with large‑scale events such as the 2021 Spring Festival Gala and the Tokyo Olympics.

Future work will focus on further decoupling the solution from business logic to provide a user‑friendly, highly adaptable transcoding framework for various scenarios.