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avconv-based timelapse script.
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#!/bin/bash | |
# Usage: | |
# timelapse.sh root rate quality | |
# | |
# Join with something like: | |
# avconv -f image2 -r 15 -i "%05d.jpg" -r 24 -s 1680x1050 -vcodec mpeg4 -pix_fmt yuv420p -q 8 output.mp4 | |
# Root path | |
root=$1 | |
# FPS; defaults to 15s delay: 1/15 = 0.06~ | |
rate="${2:-0.06}" | |
# Image quality; lower = better; defaults to 6 | |
# 4-8 is usually what you want | |
quality="${3:-6}" | |
if [ -z "$root" ]; then | |
echo "usage: timelapse.sh root rate quality" | |
exit | |
fi | |
avconv=avconv | |
screen=":0.0" | |
position="0,0" | |
size=$(xdpyinfo | grep dimensions | cut -d ' ' -f7) | |
datetime=$(date "+%FT%H-%M-%S") | |
path="$root/${datetime}" | |
echo "root = $root, rate = $rate, size = $size" | |
echo "writing to: $path" | |
if [ -d "$path" ]; then | |
echo "!! path already exists" | |
exit | |
else | |
mkdir -p "$path" | |
fi | |
echo | |
$avconv \ | |
-f x11grab -s $size -r $rate -vsync 1 -i $screen+$position \ | |
-q $quality "$path/%05d.jpg" |
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