flac dev - Jan 2014 - Why Rice order in "--best" switch is limited to 6?

I think "-r 8" is "highest reasonable". E.g. from 5 to 12
values of
"-compression_level" switch in FFMPEG uses value 8 of Rice order
parameter.

> IMHO it just means "highest reasonable", not "highest
theoretically possible".
>> "--best" preset is designed for highest compression, not for
faster
>> compression, isn't it?
>>> Because -r 8 is noticeable slower? The size difference is 0,0003%,
>>> the speed difference is 30...40%.
>>>
>>> BTW, you can also use -A=... options to increase compression ratio.
>>>> The "--best" switch currently synonymous with
"-8" that synonymous
>>>> with "--compression-level-8" that synonymous with
"-l 12 -b 4096 -m -e
>>>> -r 6".
>>>>
>>>> Why value of "-r" switch in "--best" is
limited to 6?
>>>>
>>>> The maximum Rice order is 8 (not 6) for the stream to be Subset
compatible.
>>>>
>>>> "-r 8" ("-l 12 -b 4096 -m -e -r 8")
produces better results than "-r
>>>> 6" ("-l 12 -b 4096 -m -e -r 6") and and also
Subset compatible.

???? ?????? wrote:
> I think "-r 8" is "highest reasonable". E.g. from 5 to
12 values of
> "-compression_level" switch in FFMPEG uses value 8 of Rice order
> parameter.
But FFMPEG uses flake encoder, not libFLAC. So their optimal values may differ.