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schocco/crop-border.sh

Created March 27, 2015 11:05
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remove letterbox border with ffmpeg
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crop-border.sh
#!/bin/bash
# autodetect crop size
crop=`ffmpeg -i $1 -t 1 -vf cropdetect -f null - 2>&1 | awk '/crop/ { print $NF }' | tail -1`
# cut string from "crop=1280:528:0:0" to "crop=1280:528"
crop=`echo "${crop%:*}"`
crop=`echo "${crop%:*}"`
echo "detected crop fromat: $crop"
echo "input: $1"
echo "output: $2"
date ; read -t 5 -p "Hit ENTER or wait five seconds" ; date
ffmpeg -i $1 -crf 13 -acodec copy -vf $crop -y $2
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