[FFmpeg-devel] OpenColorIO - Google Summer of Code

[Vittorio Giovara]

On Mon, Apr 20, 2020 at 10:09 AM Paul B Mahol <onemda at gmail.com> wrote:

> On 4/20/20, Rashil Gandhi <rashil2000 at gmail.com> wrote:
> > Hi,
> >
> > I figured reading my proposal was too much work so I have a one-line
> > question here that I'd like to know the answer to.
> >
> > Can an FFmpeg video filter access unclamped 32-bit float values from
> > an OpenEXR input file?
> >
>
> Nope, because decoder outputs currently non-floats pixel formats only.
> This can easily be changed, but then swscale need to be updated.
>

In theory one could use zscale (zimg) which already support float input.
However the decoder does need to be updated to output that particular
format.
See what it does in the vf_tonemap.c filter.
-- 
Vittorio