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| #!/bin/sh | |
| # Originally from http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html | |
| # Usage: giffify.sh inputFile outputFile [targetHeight] [targetFps] | |
| # Defaults: defaultHeight = 500px, targetFps = 15 | |
| inputFile="$1" | |
| outputFile="$2" | |
| desiredHeight=$3 | |
| if [[ -z $desiredHeight ]]; then | |
| desiredHeight=500 | |
| fi | |
| fps=$4 | |
| if [[ -z $fps ]]; then | |
| fps=15 | |
| fi | |
| palette="palette.png" | |
| filters="fps=$fps,scale=-1:$desiredHeight:flags=lanczos" | |
| ffmpeg -v warning -i $inputFile -vf "$filters,palettegen" -y $palette | |
| if [[ -f $palette ]]; then | |
| ffmpeg -v warning -i $inputFile -i $palette -lavfi "$filters [x]; [x][1:v] paletteuse" -y $outputFile | |
| rm $palette | |
| fi |
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