[FFmpeg-user] HDR bt.2020 to SDR bt.709 conversion

[Dennis Mungai]

On Sun, 22 Oct 2023, 13:02 pehache, <pehache.7 at gmail.com> wrote:

>
> Le 22/10/2023 à 01:20, Dennis Mungai a écrit :
>
> > Please provide a sample of the input file and uncut output of the ffmpeg
> > command line in use.
> >
>
> Here is a 60 sec. piece of the input video, extracted with
> ffmpeg -ss 75 -i in0.mkv -map 0:0 -c copy in1.mkv
>
> http://pehache.free.fr/TEMP/in1.mkv
>
> Here is what it looks like in VLC (this is a macOS screenshot, not from
> the VLC capture tool):
> http://pehache.free.fr/TEMP/vlc.png
>
> And what it should look like (natural colors and much more detailed
> shadows):
> http://pehache.free.fr/TEMP/web.png
>
> My main problem is the color shift. Playing with the luminosity is not
> that difficult (even simply with the curve filter if needed).
>
>
> About the ffmpeg text output, I've just cut the irrelevant parts
> (information about audio and subtitle tracks, and about chapters)
>


Looking into it.

>