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When a frame evasion is tried and given up, the chosen timestamp should be the original instead of the last attempt

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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.

I.e. create file sample#.avi

Run vcs on sample#.avi -> sample#.avi.png is created.
Run vcs again. sample#.avi-1.png should be created, but sed generates an error.

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.

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

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

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.

Feedback from Wai keun Chong

Wai keun Chong 21/10/2014 4:28

Good App
This is the app what i looking for and it would be great if could add
a notification sound when a network loss

Reported by Willy Romano 23/03/2017 on the Google Play

On Huawei G8. App doesn’t automatically execute when phone is turned off then back on. I protected the app and this seems to have solved the problem.

This task depends on reports of such issue.

So far all reports are on Marshmallow:

Reported by Charles Kanegeni 20/02/2016 on Google Play

New issue Great app, have always used it. Just upgraded to marshmallow and now it won’t even start. What’s up with that? From Android 5 I had problems, plus doesn’t support dual Sim phones. This is the new direction, twin Sim phones. Please work it out.

Infinix (Infinix_X510_sprout) / 6.0 / r14034

Reported by Red Rospo 04/08/2016 on Google Play

Da migliorare Non parte al boot

LG G5 (h1) / Marshmallow / r14034

Reported by Simon Howard 18/12/2016 on Google Play

Issue with auto start on boot I’ve had this app for some time now, but it will not auto start on boot on my current phone (Galaxy S5, Marshmallow 6.01)

Galaxy S5 (klte) / Marshmallow / r14034

This is a continuation of  FS#354 .

Temporarily using pre-rendered PNGs in 1.5.1, should try to re-design icons to render properly on Android 5.0 and up.

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.

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.

Reported by Vendetta 18/09/2016 on Google Play

Dejó de funcionar Desde la actualización d mi Huawei P8 lite a android 6 ya no sale el tipo d conexión en la barra d notificaciones.

P8 lite / Marshmallow / r14034

Reported by Oncewarriors 9/08/2017 through email

[...]the bar icon is vanishing after a while

Possibly using a dynamic ZIP file

See http://developer.android.com/reference/java/util/zip/ZipOutputStream.html

This is necessary for ZIP files constructed on the fly.

The current webserver implementation doesn’t support that.

The chunked transfer encoding is necessary to serve files of unknown size (created dynamically)

Originally suggested by Dogn Redhammer

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

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 Dougn Redhammer

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

Originally requested by Phil Grundig

See vcs:devel:transcode