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Add ffmpeg 720p recompress

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Jan Jastrow 2023-10-20 16:37:29 +02:00
parent d48a59e74b
commit 5c48c8bd51
1 changed files with 18 additions and 0 deletions
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18
zsh/ffmpeg
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@ -40,6 +40,24 @@ function ff-mp4 () {
done
}
# Recompress input MP4 to 720p MP4 (copy audio)
ff-recompress720p() {
for input in *.mp4; do
if [[ -f "$input" ]]; then
tempfile="temp_${input%.mp4}"
ffmpeg -hide_banner -i "$input" -map 0 -c:v libx264 -crf 18 -vf scale=1280:-1 -preset slow -tune film -x264-params "ref=5:bframes=5:crf-max=25:qpmax=34:level=3.1:b-adapt=2:direct=auto:deblock=-1,-1:analyse=all:me=umh:subme=9:trellis=2:psy-rd=1,0.15:vbv-bufsize=17500:vbv-maxrate=17500:rc-lookahead=60" -c:a copy -movflags faststart "$tempfile.mp4"
if [[ $? -eq 0 ]]; then
mv "$input" "_$input"
mv "$tempfile.mp4" "$input"
echo "Conversion successful: $input"
else
echo "Conversion failed for: $input"
fi
fi
done
}
# ffmpeg-convert
# source: https://yohanes.gultom.me/2016/05/21/bash-script-to-batch-convert-mkv-to-mp4-linux/
function ff-ac3-to-stereo() {