Lossless image compression

[birdie-github]

I've no idea how to make vvcenc losslessly compress images since I want to preserve the entire color space (RGB888). Any clues?

I'd love to use something like YUV444_10 which at least minimizes color space loss but even this format is not available:

Error parsing option "format,c" with argument "yuv444_10".

[adamjw24]

For now vvenc does not support either lossless compression nor other chroma subsampling than 420. The support is not planned in the near future.

[ValZapod]

YUV444_10 which at least minimizes color space loss

For 8 bit RGB 10 bit should be enough (if no dither is applied), DITHER_NONE.