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HDR isn’t well supported as reported by remlap and ThaDr.

Their comments:

https://outlyer.net/2017-05-26:vcs-1-13-3-released/#comment-30901

Hi I am trying to thumbnail some HDR content is there anyway to insert ffmpeg filters in
-vf zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=mobius:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p

Thanks

https://outlyer.net/2017-05-26:vcs-1-13-3-released/#comment-32413:

I’m also trying to do some HDR content and pass the -vf info to ffmpeg. I can’t get it to work even using a wrapper script.

It always comes up with awk errors, starting with “unterminated regexp”.

Is there any chance of updating vcs to support manual passing of those -vf arguments to ffmpeg?

HDR content is very common nowadays…

https://outlyer.net/2017-05-26:vcs-1-13-3-released/#comment-32423

I’m using vcs 1.13.2 on ubuntu and ended up doing it by adding the line:

-vf ‘zscale=t=linear:npl=100,format=gbrpf32le,zscale=p=bt709,tonemap=tonemap=hable:desat=0,zscale=t=bt709:m=bt709:r=tv,format=yuv420p’ \

at line 2203, in the ffmpeg_capture() function where it sets the ffmpeg command line options.

Couldn’t work out how to do it with a wrapper script.

Meta-task depending on tasks scheduled for the 1.4 release.

Previous release:  FS#234  (1.3.1)

Asked by Bob on the blog

Would it be possible to somehow specify to only screenshot half of the video image (for 180 side-by-side VR videos)?

Or would this require new features to be added to the VCS?

It just makes more sense

Useful for debugging, likely not useful for users since the command-line already overrides configurable arguments

I.e. produce a montage from a set of images

Being based on System V, it’s quite different to most other Unix-like OSes, might be a good target for x-platform enhancements

-o is a GNU extension, supported in Linux and FreeBSD

Unsupported in SunOS, OpenBSD?

No need for description