[FFmpeg-user] prores4444 to dpx: colourshift & translation

[Mark Himsley]

On 20 Feb 2013 20:00, "ArnoB" <ffmpeg at rgbaz.eu> wrote:
>
> Hello!
>
> I'm trying to convert a prores4444 quicktime with gamma 2.2 to
> a dpx sequence with the following command:
>
> % ffmpeg -i prores4444g2.2_v01.mov prores.%02d.dpx
>
> In the resulting DPX sequence I have the following errors:
> -the DPXs are tagged as being sRGB. manually switching my program's
> reader to 2.2 makes them look ok;
>
> -there is a colourshift of around 120°. My prores file contains a
colourwheel
> so it's easy to spot. green becomes blue, red becomes green and blue
> becomes red;
-also there's a translation in the X  of +277 pixels. the missing part
> is wrapped around and visible on the other side:

What you're saying is that FFmpeg says it's outputting rgb but other
software is interpreting it as bgr.

Have you tried asking FFmpeg for a bgr format?


-- 

Mark