Recent Posts

x265 and WPP: What’s Fast Isn’t Always Efficient

If you’re optimizing x265 for speed, enabling Wavefront Parallel Processing (WPP) looks like a no-brainer. Table 1 shows a staggering 7.3x improvement in encoding time. A 3:15 encode with WPP turns into a painful 23:51 without it. The quality penalty? Negligible. VMAF drops just 0.19, with the low-frame VMAF off by only 0.77  (low-frame is the lowest VMAF score of …

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Evaluating DCVC-RT: A Real-Time Neural Video Codec That Delivers on Speed and Compression

Background Authors & Affiliations: Zhaoyang Jia and Linfeng Qi (USTC), Bin Li, Jiahao Li, Wenxuan Xie, Houqiang Li, and Yan Lu (Microsoft Research Asia). This project stems from an open-source effort initiated in late 2023, with code available on GitHub. The paper targets a long-standing obstacle for neural video codecs (NVCs): achieving real-time performance without sacrificing compression quality. Existing approaches …

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