./graphics/gifsicle, Create, edit, and inspect GIFs from shell

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Branch: CURRENT, Version: 1.93, Package name: gifsicle-1.93, Maintainer: pkgsrc-users

Gifsicle is a UNIX command-line tool for creating, editing, and getting
information about GIF images and animations. You can also extract frames from
animations, or replace, delete, or insert frames into existing animations.

Some more gifsicle features:
- Batch mode for changing GIFs in place.
- Prints detailed information about GIFs, including comments.
- Control over interlacing, comments, looping, transparency...
- Creates well-behaved GIFs: removes redundant colors, only uses
local color tables if it absolutely has to (local color tables
waste space and can cause viewing artifacts), etc.
- It can shrink colormaps and change images to use the Web-safe
palette (or any colormap you choose).
- It can optimize your animations! This stores only the changed
portion of each frame, and can radically shrink your GIFs. You
can also use transparency to make them even smaller. Gifsicle's
optimizer is pretty powerful, and usually reduces animations
to within a couple bytes of the best commercial optimizers.
- Unoptimizing animations, which makes them easier to edit.

Two other programs are included with gifsicle: gifview is a lightweight
animated-GIF viewer which can show animations as slideshows or in real
time, and gifdiff compares two GIFs for identical visual appearance.


Required to build:
[pkgtools/x11-links] [pkgtools/cwrappers]

Package options: x11

Master sites:

Filesize: 564.643 KB

Version history: (Expand)

CVS history: (Expand)


   2021-10-26 12:47:26 by Nia Alarie | Files touched by this commit (800) 
Log message:
graphics: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes
   2021-10-07 16:13:27 by Nia Alarie | Files touched by this commit (800) 
Log message:
graphics: Remove SHA1 hashes for distfiles
   2021-07-20 23:44:04 by Frederic Cambus | Files touched by this commit (2) 
Log message:
gifsicle: Update to 1.93.

## Version 1.93 - 30.Jun.2021

* Fix security bug on certain resize operations with `--resize-method=box`.

* Fix problems with colormapless GIFs.
   2020-03-24 15:12:55 by Nia Alarie | Files touched by this commit (2) 
Log message:
gifsicle: Update to 1.92

## Version 1.92 – 18.Apr.2019

* Add `--lossy` option from Kornel Lipiński.

* Remove an assertion failure possible with `--conserve-memory` + `--colors` +
  `--careful`.
   2020-01-26 18:32:28 by Roland Illig | Files touched by this commit (981) 
Log message:
all: migrate homepages from http to https

pkglint -r --network --only "migrate"

As a side-effect of migrating the homepages, pkglint also fixed a few
indentations in unrelated lines. These and the new homepages have been
checked manually.
   2018-11-15 23:06:42 by Amitai Schleier | Files touched by this commit (2) 
Log message:
Update to 1.91. From the changelog:

* Several security bug fixes with malicious GIFs.
* Kill a use-after-free error reported by @junxzm1990.
* Add SIMD support for resizing. When enabled this improves resize
  performance enormously for complex resize methods.
* Add thread support for resizing. `-j[NTHREADS]` tells gifsicle to use
  up to NTHREADS threads to resize an input image. There are several
  caveats---multiple threads can be only used on unoptimized images.
  Thanks to Github user @wilkesybear.
* Quashed several crashes and undefined behaviors. Thanks to Github users
  including @pornel, @strazzere, and @b0b0505.
* Minor bug fixes.
   2017-04-05 18:07:17 by Thomas Klausner | Files touched by this commit (2) 
Log message:
Updated gifsicle to 1.88.

Version 1.88   1.Jul.2015

* Fix bug where long comments were read incorrectly. Reported by
  kazarny.

* Add --no-ignore-errors option.

Version 1.87   9.Dec.2014

* Always optimize as if the background is transparent. This fixes some
  rare bugs reported by Lars Dieckow.

* Fix --crop issue with must-be-preserved frames that are out of the
  crop window.

Version 1.86   14.Oct.2014

* Further fix --rotate + --crop.

Version 1.85   14.Oct.2014

* Greatly improve optimization time for images with many colors.

* Add --no-extensions (with the s) and document those options more.

* Fix bug in interaction of --resize and --rotate reported by Michał
  Ziemba.

Version 1.84   29.Jun.2014

* Correct optimizer bug that affected GIFs with 65535 or more total
  colors. Reported by Jernej Simončič.

Version 1.83   21.Apr.2014

* Correct bug in custom gamma values reported by Kornel Lesiński.

* Update Windows build.

Version 1.82   27.Mar.2014

* Correct bug in `mix` sampling method reported by Bryan Stillwell.

Version 1.81   24.Mar.2014

* Correct bug in `mix` sampling method reported by Bryan Stillwell.

Version 1.80   18.Mar.2014

* Bug fixes and improved error messages.

Version 1.79   17.Mar.2014

* Major improvements in image scaling. Work sponsored by Tumblr via
  Mike Hurwitz.

** Add new resize sampling methods `mix`, `box`, `catrom`, `mitchell`,
   `lanczos2`, and `lanczos3`, selectable by `--resize-method`. The
   `catrom` filter often gives good results; the slightly faster `mix`
   method (a bilinear interpolator) is now the default. These new
   sampling methods consider all of the image's input colors when
   shrinking the image, producing better, less noisy output for most
   images.

** Add `--resize-colors`, which allows Gifsicle to enlarge the palette
   when resizing images. This is particularly important when shrinking
   images with small colormaps---e.g., shrinking a black-and-white
   image should probably introduce shades of gray.

* Support extensions such as XMP4 in which extension packet boundaries
  matter. Reported by `ata4`.

* Many bug fixes, especially to cropping. Thanks to Tumblr and to
  Bryan Stillwell, Tal Lev-Ami, "Marco," and others.
   2015-11-03 22:34:36 by Alistair G. Crooks | Files touched by this commit (610) 
Log message:
Add SHA512 digests for distfiles for graphics category

Problems found with existing digests:
	Package fotoxx distfile fotoxx-14.03.1.tar.gz
	ac2033f87de2c23941261f7c50160cddf872c110 [recorded]
	118e98a8cc0414676b3c4d37b8df407c28a1407c [calculated]
	Package ploticus-examples distfile ploticus-2.00/plnode200.tar.gz
	34274a03d0c41fae5690633663e3d4114b9d7a6d [recorded]
	da39a3ee5e6b4b0d3255bfef95601890afd80709 [calculated]

Problems found locating distfiles:
	Package AfterShotPro: missing distfile AfterShotPro-1.1.0.30/AfterShotPro_i386.deb
	Package pgraf: missing distfile pgraf-20010131.tar.gz
	Package qvplay: missing distfile qvplay-0.95.tar.gz

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.