[FFmpeg-devel] [PATCH] doc/filters: document the unstability of the shorthand options notation.

Nicolas George george at nsup.org
Sat Aug 5 19:42:47 EEST 2017

L'octidi 18 thermidor, an CCXXV, Michael Niedermayer a écrit :
> I think you do not realize how annoying this would be in practice
> Users do not know all these nuances that one syntax is stable and work
> and one works but is not future proof. It also violates the priniple of
> least surprise. Aka this fails one of the most fundamental rules of
> user interface design

I think all competent users should realize that a shortcut is less
stable than the full notation.

> This comment makes me a bit sad.
> It implies that old code is bad without any solid fact, nothing one can
> proof, disproof, or fix.

I am not saying that all the old code is bad. But do you want to imply
that all of it is good? As long as some of it is bas, we need to improve
it, and unconditional compatibility is an hindrance to that.

>			   And thats not even related here, you
> didnt start by wanting to fix a mistake in the order, the changed order
> was a side effect of other work.

Actually, the "other work" was fixing a mistake: implementing the
options in the individual filters.

> also my suggestion was to define what is stable now and maintain that
> properly and disallow what is not stable. Have a clear interface and
> stick to it.
> Stable interfaces are important.

Named options are stable. There is no need for anything more.


  Nicolas George
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