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mfehr/speedup.sh

Last active November 29, 2017 12:09
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speedup.sh
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speedup.sh
#!/usr/bin/env bash
# USAGE: speedup.sh <video> <speedup_factor (e.g. 2)> <speedup_factor_inv (e.g. 0.5)>
# speedup_factor_inv has to be equal to 1 /speedup_factor
let b=30*$2
echo "ffmpeg -i $1 -r $b -filter:v 'setpts=${3}*PTS' ${1}_${2}x.mp4"
ffmpeg -i $1 -r $b -filter:v "setpts=${3}*PTS" ${1}_${2}x.mp4
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