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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.

Reported by Terry Parrott

Reports that the app won’t auto load despite having the option enabled.

Reported on Oreo.

Presumably related to FS#370.

The app force-closes on device boot when load on boot is enabled.

Once the boot is complete it behaves normally.

Seen in Oreo.

Presumably related to FS#369.

As of 2019-07 usage below KitKat is anecdotal:

2.3.x: 0.04%
4.0.x: 0.07%
4.1: 0.86%
4.2: 1.35%
4.3: 0.82%

2.3 to 4.3: 3.14%

4.4: 6.28%
5.0: 4.33%

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

Previous release:  FS#234  (1.3.1)

Should allow to disable it in both configuration and command-line.

Should provide an easy way to generate a new configuration file based on the provided command-line arguments.

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 Paul:

Hey,
I'm using VCS via Homebrew Install (https://formulae.brew.sh/formula/vcs#default) and since the last update of imagemagick (?) I get dozens of error messages:
convert: Expected operator at '.mean*100' @ error/fx.c/GetOperator/2408

Confirmed to happen on ImageMagick 7.1 on Linux, the contact sheet is generated but blank frame evasion is skipped

It just makes more sense

Currently off Google Play due to failing to meet a deadline on policy changes.

Currently unable to re-stablish due to being away from my keys

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.

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

Originally reported by Phil Grundig

Version of ffmpeg: ffmpeg (CVS-060515)

Originally reported by Phil Grundig

Version of mplayer: mplayer (1.0pre8cvs)

Originally reported by Tomasz Strózik

Example given:

$ find $DIR \(-name "*.avi" -o -name "*.wmv" -o -name "*.mpg" -o -name "*.mp4" \) -exec vcs -dt -ds -n 12 -c2 -H 200 --jpeg --quiet {} \;

Works on avi, mpg and mp4 but fails on wmv with
Failed to capture frame (at second xxx.000)

Processing the same file directly works:

$ vcs -dt -ds -n 12 -c2 -H 200 --jpeg --quiet File.wmv

Originally reported by Dougn Redhammer

Original report by Dougn Redhammer

vcs hangs with some RM files.

Tracing shows it gets stuck in mplayer_identify.

MPlayer can play the files fine from the terminal. Although it exits with «MPlayer interrupted by signal 11 in module: uninit_vcodec».

I can reproduce the abrupt termination, it happens when using Real’s native decoder (w64codecs, /usr/lib/codecs/drvc.so). Using FFMpeg’s decoder (MPlayer’s -vc ffrv30) MPlayer exits normally.

I can’t reproduce the hang either way.

Due to the use of ~ in the revision tag

finger is not installed/enabled by default in at least FC12. Replace it with something better like grepping /etc/passwd

The spinner, used to show progress adds a lot of overkill just to give some feedback while working

Running in Fedora Core 10 i686 (KVM) yields one 128k frame less and a different “theoretical size” than in Debian amd64, in one sample, and the same number of frames but 2 bytes less in another.

No need for description

This is a meta-item depending on bugs/features required to complete before releasing mp3plot 0.6.1

Next: FS#192

This is a meta-item depending on bugs/features required to complete before releasing mp3plot 0.7

Previous: FS#191
Next: FS#193