AviSynth: reverted harmful commits about UTF-8 filenames. Used libraries: FFmpeg 2c85a07. l-smash 2c0696c. obuparse f40598f. zlib 1.3. dav1d 1.3.0. libxml2 v2.11.5. nv-codec-headers n12.1.14.0. xxHash v0.8.2. mfx_dispatch f6aac45.