Imgkit - Python 2 and 3 wrapper for wkhtmltoimage utility to convert HTML to IMG using Webkit.
This Python tool is doing the most important part.
It's in the core of the process. It converts an intermediate HTML to a PNG image.
It's stored in a separate file aaa.py . Its called from a shell.
eval 'python3 ./aaa.py $j.html _$j.png'
The Imgkit is used instead of the outdated Webkit2png. The Webkit2png doesn't work with new QT.
File aaa.py:
import imgkit
import sys
options = {
'quiet': '',
'quality': '100'
}
imgkit.from_url(sys.argv[1], sys.argv[2], options=options)
It's slow!
Parameters are for a 4K output .mp4 PAL video.
#!/bin/bash
f=$( ls *.mp4 )
ffmpeg -i $f -r 25 -f image2 %7d.jpg
for i in $(ls | grep jpg | sort) ; do
echo $i
j=$( echo $i | sed '1,$ s/\(.*\)\.jpg/\1/')
img2txt -W 734 -H 190 -x 3 -y 5 $i -f html3 > $j.html
eval 'python3 ./aaa.py $j.html _$j.png'
#convert _$j.png -trim +repage -resize '3840x' -sharpen 0x1.0 $j.png
convert _$j.png -trim +repage -adaptive-resize '3840x' -adaptive-sharpen 1.0 $j.png
rm $j.html _$j.png
done
ffmpeg -r 25 -f image2 -i %7d.png -vcodec libx264 -crf 17 -pix_fmt yuv420p $f.mkv
Parallel processing, one image per CPU core.
Parameters are for a 4K input .mp4 PAL video.
#!/bin/bash
c=16 # CPU cores
echo
echo "############################## 1 ################################"
echo
f=$( ls *.mp4 ) # .mp4 input
ffmpeg -i $f -r 25 -f image2 %7d.jpg # PAL 25 fps
echo
echo "############################## 2 ################################"
echo
for i in $(ls | grep jpg | sort) ; do
j=$( echo $i | sed '1,$ s/\(.*\)\.jpg/\1/')
( img2txt -W 430 -H 110 $i -f html3 > $j.html ; rm $i ) &
s=$( ps -ef | grep img2txt | grep -v grep | wc -l )
echo $j.html" "$s
while [[ $s -ge $c ]] ; do
echo -n "."
sleep 1
s=$( ps -ef | grep img2txt | grep -v grep | wc -l )
if [[ $s -lt $c ]]
then
echo "."
fi
done
done
echo
echo "############################## 3 ################################"
echo
for i in $(ls | grep html | sort) ; do
j=$( echo $i | sed '1,$ s/\(.*\)\.html/\1/')
( eval 'python3 ./aaa.py $i _$j.png' ; rm $i ) & # the Python part
echo -n _$j.png " "
s=$( ps -ef | grep "aaa.py" | grep -v grep | wc -l )
echo $s
while [[ $s -ge $c ]] ; do
echo -n "."
sleep 1
s=$( ps -ef | grep "aaa.py" | grep -v grep | wc -l )
if [[ $s -lt $c ]]
then
echo "."
fi
done
done
echo
echo "############################## 4 ################################"
echo
for i in $(ls | grep _ | grep png | sort) ; do
j=$( echo $i | sed '1,$ s/_\(.*\)\.png/\1/')
( convert $i -trim +repage -adaptive-resize 3840x2160\! -adaptive-sharpen 2.0 $j.png ; rm $i ) &
echo -n $j.png" "
s=$( ps -ef | grep convert | grep -v grep | wc -l )
echo $s
while [[ $s -ge $c ]] ; do
echo -n "."
sleep 1
s=$( ps -ef | grep convert | grep -v grep | wc -l )
if [[ $s -lt $c ]]
then
echo "."
fi
done
done
echo
echo "############################## 5 ################################"
echo
f=$( cat $f | sed '1,$ s/\(.*\)\.mp4/\1/' )
ffmpeg -r 25 -f image2 -i %7d.png -vcodec libx264 -crf 0 -pix_fmt yuv420p $f.mkv # .mkv output, crf = 0 for best quality
exit 0