vcs

Originally requested by Phil Grundig

See vcs:devel:transcode

Great feature, implemented in mtn

http://moviethumbnail.sourceforge.net/

See also FS#126

Originally requested by Dougn Redhammer

E.g. with ImageMagick’s -stroke and -strokewidth

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Interesting feature, experimentally implemented in mtn

http://moviethumbnail.sourceforge.net/

See also FS#125

This is a meta-item depending on bugs/features required to complete before releasing vcs 1.14

Previous:  FS#152   FS#218   FS#224   FS#250   FS#366 

Originally requested by Daniel

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

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

Originally suggested by Dean: http://outlyer.net/2010-08-24:vcs-1_12-2-released/

” [...]

Second, my dvd-drive is useless atm, but i remember previously piping dvd-ouput from mplayer into ffmpeg via a fifo and finding the info generated to be much better than mplayer-alone – for one thing, it won’t ‘downmix’ 6-channel audio automatically. Don’t know if that would be useful to you. The syntax was something like:-

mkfifo piped.vob &&
mplayer dvd:// -dumpstream -dumpfile piped.vob & \
ffmpeg -i piped.vob

…See what you think…
”

Originally suggested by Dogn Redhammer

As reported by Dirk Reiners (paraphrased)

Files incorrectly reporting too short length (unlike too long), pass the safe_length_measure check ⇒ This prevents correcting length.

Fails on some files (gets stuck forever while capturing the first frame).

Happens often with Matroska. 1.0.7a introduced a workaround (-Wo) with ffmpeg’s argument order that worked with other file types.

This is a meta-item depending on bugs/features required to complete before releasing vcs 2.0.

v2.0 will be a rewrite in Python.

Previous: FS#153

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Request by Chris Hills

http://outlyer.net/2014-05-18:vcs-1_13_2-released/comment-page-1/#comment-17238:

Thanks Toni. I was hoping I could simply run `$ vcs-1.13.2.bash -? **/*.mp4` to create contact sheets for all videos in all subfolders, but it sounds like I’ll have to use a wrapper script. Would you consider adding this in a future release for a donation?

My reply:

I guess you’re using zsh-ish globbing there.
That’s not something I use so I didn’t even think of the case where recursing could be so simple.

It was a bit of an overlook on my part not to have the option to output to the same directory as the video, probably because recursion always required a wrapper in my head.

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?

Reported by KW in comments: https://outlyer.net/2019-11-26:vcs-1-13-4-released/#comment-51875

With the new script I'm getting issues the following error:
No compatible version of getopt in path, can't continue.
Enhanced getopt (i.e. GNU getopt) is required

Added by Darko in comments: https://outlyer.net/2019-11-26:vcs-1-13-4-released/#comment-52719

The homebrew's version of vcs has this at line 186:
declare GETOPT=/opt/homebrew/opt/gnu-getopt/bin/getopt
While Toni's just uses whatever is on path:
declare GETOPT=getopt
… which on macOS is non-gnu version of getopt.

Added by X in comments: https://outlyer.net/2019-11-26:vcs-1-13-4-released/#comment-53401

The issue is on line 186. Brew version has this:
declare GETOPT=/usr/local/opt/gnu-getopt/bin/getopt
The trunk version has:
declare GETOPT=getopt
When I backport the most important change you did in the trunk version ('`fx:image.mean` > `fx:mean`') then indeed the error messages on '.mean*100' are gone.

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

Unsupported in SunOS, OpenBSD?

The available configuration options need a serious review and renaming. Old names will be accepted with warnings for either two releases or six months.

Also, should provide a sample configuration file so that the syntax and options are clearer.

Introduce new names in 1.12 ( FS#120 )

Remove old names in 1.13 or 1.14 (this)