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https://github.com/lukechilds/gifgen

Simple high quality GIF encoding
https://github.com/lukechilds/gifgen

encoding-gifs ffmpeg gif

Last synced: about 2 months ago
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Simple high quality GIF encoding

Host: GitHub
URL: https://github.com/lukechilds/gifgen
Owner: lukechilds
License: mit
Created: 2016-07-03T21:06:41.000Z (about 8 years ago)
Default Branch: master
Last Pushed: 2023-01-22T12:21:49.000Z (over 1 year ago)
Last Synced: 2024-05-01T23:18:32.291Z (5 months ago)
Topics: encoding-gifs, ffmpeg, gif
Language: Shell
Homepage:
Size: 1.32 MB
Stars: 535
Watchers: 12
Forks: 29
Open Issues: 2
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE

Awesome Lists containing this project

awesome-gif - Gifgen - Simple high quality GIF encoding. (Utilities)

README

# gifgen

> Simple high quality GIF encoding

[![GitHub Donate](https://badgen.net/badge/GitHub/Sponsor/D959A7?icon=github)](https://github.com/sponsors/lukechilds)
[![Bitcoin Donate](https://badgen.net/badge/Bitcoin/Donate/F19537?icon=bitcoin)](https://lu.ke/tip/bitcoin)
[![Lightning Donate](https://badgen.net/badge/Lightning/Donate/F6BC41?icon=bitcoin-lightning)](https://lu.ke/tip/lightning)

If you've ever tried encoding GIFs with `ffmpeg` there's a good chance your results came out looking pretty bad. This is because GIFs are limited to a palette of 256 colours and `ffmpeg` just uses a generic palette to be able to cover a wide range of colours.

`gifgen` produces much better results by doing a 2-pass encode. The first pass generates a custom colour palette based on all of the pixels from each frame. The second pass encodes the GIF using this palette instead of the default one bundled with `ffmpeg`.

**ffmpeg default:**

![ffmpeg default](gifs/bbb-default.gif)

**gifgen:**

![gifgen](gifs/bbb-gifgen.gif)

## Usage

```
$ gifgen -h
gifgen 1.2.0

Usage: gifgen [options] [input]

Options:
-o Output file [input.gif]
-f Frames per second [10]
-s Optimize for static background
-v Display verbose output from ffmpeg
-w Scale output with horizontal resolution
-b Begin the clip at a given timestamp (in seconds)
-d Duration in seconds of the resulting gif, can be combined with at

Examples:
$ gifgen video.mp4
$ gifgen -o demo.gif SCM_1457.mp4
$ gifgen -sf 15 screencap.mov
$ gifgen -sf 15 -w 320 screencap.mov

Begin at 3.5 seconds into the video, make the gif using the next 5.5 seconds
$ gifgen -b 3.5 -d 5.5 screencap.mov

```

## Installation

### macOS

```shell
brew install lukechilds/tap/gifgen
```

### Linux

Just clone this repo and either copy/symlink `gifgen` to your PATH or run the script directly with `./gifgen`. Requires `ffmpeg` to be installed.

### Windows

```
¯\_(ツ)_/¯
```

## Credits

`gifgen` is pretty much just the information from [this blog article](http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html) wrapped up in a shell script. Full credit goes to the original [author](http://ubitux.fr/).

## License