tryptech
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2 years ago | |
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gifs | 8 years ago | |
LICENSE | 8 years ago | |
README.md | 2 years ago | |
gifgen | 2 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 1.2.0
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
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
Requires WSL
and ffmpeg
to be installed.
Clone this repo. Open the Linux shell and correct the line endings for the gifgen file for Windows with the following:
sed -i -e 's/\r$//' /PATH/TO/GIFGEN/FILE
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.
License
MIT © Luke Childs