[FFmpeg-devel] [PATCH 3/3] add digital cinema frame sizes

[Stefano Sabatini]

On date Saturday 2013-02-02 19:45:54 +0100, Michaël Cinquin encoded:
> On 2 févr. 2013, at 16:21, Stefano Sabatini wrote:
> >> 
> >>     { "hd480",     852, 480 },
> >>     { "hd720",    1280, 720 },
> >>     { "hd1080",   1920,1080 },
> >> +    { "2K",       2048,1080 }, /* Digital Cinema System Specification */
> >> +    { "4K",       4096,2160 }, /* Digital Cinema System Specification */
> > 
> > LGTM after checking Wikipedia, I'll push the three patches tomorrow
> > (this one with a micro bump), if no-one thinks this is wrong.
> 
> 
> 2048x1080 (code name "full container") is not very common for Digital Cinema.
> 
> What is used in the field is
> 2048x858 : 2.39 aspect ratio ==> preset for projector is "Scope"
> 1998x1080 : 1.85 aspect ratio ==> preset for projector is "Flat"
> 
> For 4K, it the same with 2x the numbers.
> 
> Perhaps then resolution could be 
> {"2Kfc",       2048x1080},
> {"2Kflat",       1998x1080},
> {"2Kscope",       2048x858},
> {"4Kfc",       4096x2160},
> {"4Kflat",       3996x2160},
> {"4Kscope",       4096x1716}

Guys I'll happy leave this to someone which is more familiar with the
field where the abbreviations are used, I'll push once you find an
acceptable agreement. We could support both variants ("2K/2Kfc") if
that doesn't lead to much confusion.
-- 
FFmpeg = Faithless & Fabulous Multipurpose Pure Ecumenical Guide