[FFmpeg-user] convert from bt601 to bt709

Gregory Ducatel gducatel at gmail.com
Thu Jun 5 17:36:52 CEST 2014

Hi guys,

I totally agree regarding Quick Time. Unfortunately one of our client wants
to review using Quick Time file and ask us to match the look With Quick
Time player.

Could it be that the color atom are not valid from ffmpeg? Can we set them

The same quick time file outputed with Nuke, provide a prefered transfer
set at 1.8

Ffmpeg on the other hand provide a prefered transfer always set at 2.2?

Is there a way to change that?

Thank you for your help!
On Jun 5, 2014 4:08 AM, "Rio Kierkels" <riokierkels at gmail.com> wrote:

> >
> > > Maybe try not to use the sws_flags at all and only use
> > > filters_complex. sws_flags have never really worked for me.
> >
> > Did you report this?
> >
> > Carl Eugen
> >
> I should have of course but haven't been able to make a good test case yet.
> An intermediate pixel format wouldn't be a bad idea at all.
> I actually assumed that ffmpeg internally did all its calculations in the
> best space possible like Nuke does it for example.
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