A grainy 4K movie (e.g., Murder One ) might be 50GB raw. Feeding it directly into x265 at CRF 24 yields 15GB. But if you run a light denoise filter first, the same CRF yields 8GB with better visual quality (because the encoder isn't chasing noise).
The problem is when one-size-fits-all shrinking is applied to film grain–heavy movies, fast action, or HDR content. That’s where the magic trick fails. shrinking x265
With the rise of AV1 (AOMedia Video Codec) and VVC (H.266), is x265 shrinking a dying art? A grainy 4K movie (e
Unlike x264’s 16x16 macroblocks, x265 uses larger 64x64 CTUs, allowing it to compress large, static areas (like a clear sky) much more efficiently. Efficiency Presets: The speed of the encoder directly impacts file size. A The problem is when one-size-fits-all shrinking is applied
In the world of digital video, few codecs have inspired as much devotion and frustration as (the open-source implementation of H.265/HEVC). Praised for its ability to halve bitrates compared to H.264 while maintaining similar quality, it is the gold standard for archiving 4K, HDR, and high-bitrate Blu-ray rips.