Film Grain Workbench 1.0.0

First release.

• VVC grain analyzer: encode any scene with VVenC in all three film grain analysis modes and compare the source, VVC without and with vvdec's grain synthesis, and the grain alone.
• AV1 grain into VVC: measure the grain a VVC encode lost with libaom's noise model, tune it on real frames, and write it into the encode as AFGS1 metadata; Verify checks the result with ffmpeg.

Download FilmGrainWorkbench-1.0.0-win64.zip, unzip it and run Film Grain Workbench.exe. Needs ffmpeg and ffprobe 7.1 or newer with VVC decoding, and MKVToolNix to write MKVs. Windows 10/11, 64-bit.