Constant libjxl_sys::JXL_DEC_EXTENSIONS

pub const JXL_DEC_EXTENSIONS: JxlDecoderStatus = 128;

Informative event by @ref JxlDecoderProcessInput “JxlDecoderProcessInput”: User extensions of the codestream header. This event occurs max once per image and always later than @ref JXL_DEC_BASIC_INFO and earlier than any pixel data.