libplacebo 6.338.2

libplacebo is, in a nutshell, the core rendering algorithms and ideas of mpv rewritten as an independent library. As of today, libplacebo contains a large assortment of video processing shaders, focusing on both quality and performance. These include features such as the following: High-quality, optimized upscaling and downscaling including support for polar filters ("Jinc"), anti-aliasing, anti-ringing and gamma correct scaling. Dynamic HDR tone mapping, including real-time measurement of scene histogram, scene change detection, dynamic exposure control, perceptual gamut stretching, contrast recovery and more. Native support for Dolby Vision HDR, including Profile 5 conversion to HDR/PQ or SDR, reading DV side data, and reshaping. (BL only, currently) A colorimetrically accurate color management engine with support for soft gamut mapping, ICC profiles, accurate ITU-R BT.1886 emulation, black point compensation, and custom 3DLUTs (.cube). A pluggable, extensible custom shader system. This can be used to arbitrarily extend the range of custom shaders to include popular user shaders like RAVU, FSRCNNX, or Anime4K. See the mpv wiki on user scripts for more information. High performance film grain synthesis for AV1 and H.274, allowing media players to offload this part of decoding from the CPU to the GPU. Tunable, fast debanding and deinterlacing shaders. High quality gamma-correct dithering, including error diffusion modes. Every attempt was made to provide these features at a

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