Luke Childs 60be83f2eb Add -s flag to optimize for static background		9 years ago
gifs	Add GIF examples	9 years ago
README.md	Update readme with new help output	9 years ago
gifgen	Add -s flag to optimize for static background	9 years ago

README.md

gifgen

Simple high quality GIF encoding

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:

gifgen:

Usage

$ gifgen -h
gifgen 1.0.1

Usage: gifgen [options]

Options:
  -i   Input file
  -o   Output file [input.gif]
  -f   Frames per second [10]
  -v   Display verbose output from ffmpeg

Examples:
  $ gifgen -i screencap.mp4
  $ gifgen -i SCM_1457.mov -o demo.gif
  $ gifgen -i screencap.mp4 -f 15

Installation

macOS

brew tap lukechilds/tap
brew install 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.

Credits

gifgen is pretty much just the information from this blog article wrapped up in a shell script. Full credit goes to the original author.