How Bilibili’s BILIVVC Encoder Ranked in the 2022 MSU 10‑bit Codec Competition

On September 26, 2023, the results of the 2022 MSU International Codec Competition 10‑bit track were published.

The competition, regarded as the most influential benchmark in video coding, evaluates encoders across multiple dimensions and bit‑depths. Compared with the 8‑bit track released in July, the 10‑bit track uses richer video content, increasing visual complexity and demanding higher encoder performance.

BILIVVC Performance

Bilibili’s self‑developed encoder BILIVVC, built on the H.266 (VVC) standard, achieved the following rankings:

1 fps setting: third place in the combined YUV‑SSIM metric.

5 fps setting: second place in both the combined YUV‑SSIM and YUV‑PSNR metrics.

These results place BILIVVC among the top performers in the competition’s multi‑encoder field.

Result Charts

Figure 1 shows the overall ranking table from the MSU website (red box highlights BILIVVC). Figure 2 displays the 1 fps performance curve, and Figure 3 shows the 5 fps performance curve; in both figures the red arrows point to BILIVVC.

Multimedia Lab Context

The Bilibili Multimedia Lab, a technology‑driven team, focuses on high‑quality video experiences. Its work includes self‑developed video encoders, efficient transcoding strategies, image processing, and quality assessment algorithms such as narrow‑band HD transcoding, lossless visual pre‑processing, ultra‑real‑time 4K 60 FPS up‑scaling, and a high‑efficiency video image processing engine. These solutions collectively improve system‑level performance and efficiency, helping Bilibili maintain a leading position in internet video services.

For more details, see the competition report: http://www.compression.ru/video/codec_comparison/2022/10_bit_report.html and the BILIVVC project page: http://mp.weixin.qq.com/s?__biz=Mzg3Njc0NTgwMg==∣=2247495619&idx=1&sn=c894cdc5aaccd46998efcfbfa2d08822