[FFmpeg-user] ffmpeg -layer flag

Dan Walker walkerdan1 at gmail.com
Tue Jan 21 22:42:56 EET 2020

@Gonzalo - Thanks for that feedback! With the channels listed in the
response I sent Carl, do you see any issues with the channel names?  These
image sequences are coming from SideFX Houdini.

When a patch is created, where would I get that?

Thanks again Gonzalo!

On Sun, Jan 19, 2020 at 1:36 PM Gonzalo GarramuƱo <ggarra13 at gmail.com>

> El 17/01/20 a las 23:26, Carl Eugen Hoyos escribiĆ³:
> > Am Sa., 18. Jan. 2020 um 02:47 Uhr schrieb Dan Walker <
> walkerdan1 at gmail.com>:
> >
> >> I'm trying to find info on the -layer flag for ffmpeg which seems to be
> >> undocumented in terms of examples.
> > Seriously:
> > What did you try? You write above that you have "multilayer EXR [R,G,B":
> Did
> > you test ffmpeg -layer G -i input out.jpg?
> The flag seems to be somewhat broken on current head.   It should allow
> you to extract rgb (or xyz) channels from multiview EXRs. However, it
> only allows uppercase channels, like N.X or indirect_diffuse.R.
> I'll submit a patch to fix that.
> It does not work with OpenEXRs 2.0 multipart files (known limitation).
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