[FFmpeg-devel] [PATCH 3/3] vf_colorspace: Add support for smpte 431/432 (dci/display p3) primaries

Vittorio Giovara vittorio.giovara at gmail.com
Mon Oct 31 17:13:19 EET 2016

On Mon, Oct 31, 2016 at 7:43 AM, Ronald S. Bultje <rsbultje at gmail.com> wrote:
> Hi,
> On Mon, Oct 31, 2016 at 5:50 AM, Kevin Wheatley <kevin.j.wheatley at gmail.com>
> wrote:
>> On Sun, Oct 30, 2016 at 1:18 PM, Ronald S. Bultje <rsbultje at gmail.com>
>> wrote:
>> > Hmm... So, the wikipedia page https://en.wikipedia.org/wiki/DCI-P3
>> > refers
>> > to the two whitepoints here as DCI-P3 D65 and DCI-P3 Theater. Calling
>> > one
>> > D65 and the other DCI seems confusing in that light (assuming the
>> > wikipedia
>> > page is correct). I'd call it THEATER or DCI_P3_THEATER, to distinguish
>> > it
>> > from DCI-P3 D65. Is that OK?
>> In the industry people just call it the DCI P3 white point (or 'Urgh')
>> it is not limited to theater usage, you might consider it the
>> calibration white point for the reference projector, so
>> WP_DCI_P3_REFERENCE might be better, but that is a little long.
>> I'd go for something like WP_DCI_P3 it is not really ambiguous.
> Hm... OK with me (though not ideal, but what do I know). Vittorio, OK also?
> I can modify patch so you don't have to resend.

I find it a little long and not less confusing than my initial WP_DCI,
among all the alternatives I liked the THEATER one the most. If that's
a no-go, how about we could settle for WP_PROJ maybe?

More information about the ffmpeg-devel mailing list