Created
November 28, 2021 23:06
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bash function to create mp4 from an image sequence
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function movie() { | |
if [ $# -lt 3 ]; then | |
echo "usage: movie output_movie FPS files" | |
kill -INT $$ | |
fi | |
tmpdir=`mktemp -d` | |
output=$1 | |
fps=$2 | |
shift 2 | |
files="$@" | |
count=0 | |
suffix=`echo $1 | cut -f2 -d.` | |
width=`identify -format "%w" $1` | |
height=`identify -format "%h" $1` | |
# Make sure that the width is even (yuv420p format for QT) | |
width=`expr $width \/ 2 \* 2` | |
height=`expr $height \/ 2 \* 2` | |
cwd=`pwd` | |
for f in $files; do | |
fn=`echo $count $suffix | gawk '{printf "img%06d.%s", $1, $2}'` | |
ln -s $cwd/$f ${tmpdir}/${fn} | |
count=`expr $count + 1` | |
done | |
ffmpeg -framerate $fps -f image2 -i ${tmpdir}/img%06d.${suffix} -vcodec libx264 -pix_fmt yuv420p \ | |
-s ${width}x${height} -crf 25 -y $output | |
rm -r $tmpdir | |
} |
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