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LICENSE
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@ -1,6 +1,6 @@
MIT License MIT License
Copyright (c) 2024 Jan Jastrow Copyright (c) 2022 Jan Jastrow
Permission is hereby granted, free of charge, to any person obtaining a copy Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal of this software and associated documentation files (the "Software"), to deal

141
zsh/ffmpeg
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@ -2,9 +2,15 @@
# filename: /zsh/ffmpeg # filename: /zsh/ffmpeg
#-------------------------------- #--------------------------------
# "Repackge" video file into MP4 container # ffmpeg function to find borders for cropping
function ff-crop() {
ffmpeg -hide_banner -i "$1" -vf cropdetect,metadata=mode=print -f null - 2>&1 | awk '/crop=/ { print $NF }'
}
# Original script: https://yohanes.gultom.me/2016/05/21/bash-script-to-batch-convert-mkv-to-mp4-linux/ # Original script: https://yohanes.gultom.me/2016/05/21/bash-script-to-batch-convert-mkv-to-mp4-linux/
# Rewritten with ChatGPT 🙈 # Rewritten with ChatGPT 🙈
function ff-mp4 () { function ff-mp4 () {
local findpath="${1:-.}" local findpath="${1:-.}"
local file_list=() local file_list=()
@ -40,16 +46,13 @@ function ff-mp4 () {
done done
} }
# # Recompress input MP4 to 720p MP4 (copy audio)
# Video scaling/reencoding ff-recompress720p() {
#
# Recompress input MP4 to 720p x264 MP4 (copy audio)
ff-x264-scale720p() {
for input in *.mp4; do for input in *.mp4; do
if [[ -f "$input" ]]; then if [[ -f "$input" ]]; then
tempfile="temp_${input%.mp4}" tempfile="temp_${input%.mp4}"
ffmpeg -hide_banner -loglevel info -i "$input" -c:v libx264 -crf 18 -vf scale=1280:-2 -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 -c:s copy -movflags faststart "$tempfile.mp4" ffmpeg -hide_banner -i "$input" -c:v libx264 -crf 18 -vf scale=1280:-2 -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 -c:s copy -movflags faststart "$tempfile.mp4"
if [[ $? -eq 0 ]]; then if [[ $? -eq 0 ]]; then
mv "$input" "_$input" mv "$input" "_$input"
mv "$tempfile.mp4" "$input" mv "$tempfile.mp4" "$input"
@ -61,12 +64,12 @@ ff-x264-scale720p() {
done done
} }
# Recompress input MP4 to 540p x264 MP4 (copy audio) # Recompress input MP4 to 540p MP4 (copy audio)
ff-x264-scale540p() { ff-recompress540p() {
for input in *.mp4; do for input in *.mp4; do
if [[ -f "$input" ]]; then if [[ -f "$input" ]]; then
tempfile="temp_${input%.mp4}" tempfile="temp_${input%.mp4}"
ffmpeg -hide_banner -loglevel info -i "$input" -c:v libx264 -crf 18 -vf scale=960:-2 -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 -c:s copy -movflags faststart "$tempfile.mp4" ffmpeg -hide_banner -i "$input" -c:v libx264 -crf 18 -vf scale=960:-2 -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 -c:s copy -movflags faststart "$tempfile.mp4"
if [[ $? -eq 0 ]]; then if [[ $? -eq 0 ]]; then
mv "$input" "_$input" mv "$input" "_$input"
mv "$tempfile.mp4" "$input" mv "$tempfile.mp4" "$input"
@ -78,89 +81,30 @@ ff-x264-scale540p() {
done done
} }
# Recompress input MP4 to 720p AV1 MP4 (copy audio) # ffmpeg-convert
ff-av1-scale720p() { # source: https://yohanes.gultom.me/2016/05/21/bash-script-to-batch-convert-mkv-to-mp4-linux/
for input in *.mp4; do function ff-ac3-to-stereo() {
if [[ -f "$input" ]]; then
tempfile="temp_${input%.mp4}"
ffmpeg -hide_banner -loglevel info -i "$input" -vf format=yuv420p,scale=1280:-2 -c:v libsvtav1 -preset 5 -crf 18 -g 300 -svtav1-params tune=0 -c:a copy -c:s copy "$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
}
#
# Video helper
#
# ffmpeg function to find borders for cropping
function ff-crop() {
ffmpeg -hide_banner -loglevel error -i "$1" -vf cropdetect,metadata=mode=print -f null - 2>&1 | awk '/crop=/ { print $NF }'
}
# ffmpeg fix Non-monotonous DTS
function ff-dts() {
ffmpeg -hide_banner -loglevel error -fflags +igndts -i "$1" -c copy -pix_fmt yuv420p -movflags faststart "temp_$1"
mv "$1" "_$1" && mv "temp_$1" "$1"
}
#
# Convert audio
#
# ffmpeg audio-to-ac3
function ff-audio-to-ac3() {
ffmpeg -hide_banner -loglevel error -i "$1" -movflags faststart -map 0 -c:v copy -c:s copy -c:a ac3 -b:a 448k "temp_$1"
mv "$1" "_$1" && mv "temp_$1" "$1"
}
## ffmpeg wma-to-m4a
function ff-wma-to-m4a() {
findpath=$1 findpath=$1
: "${findpath:="."}" : "${findpath:="."}"
find "$findpath" -name '*.wma' | while read -r f ; do find "$findpath" \( -iname '*.mkv' -o -iname '*.flv' -o -iname '*.mov' -o -iname '*.mp4' \) | while read -r f ; do
dir=$(dirname "$f"); dir=$(dirname "$f");
file=$(basename "$f"); file=$(basename "$f");
name="${file%.*}"; name="${file%.*}";
ext="${file##*.}"; ext="${file##*.}";
ffmpeg -hide_banner -loglevel error -i "$f" -map 0 -vn -b:a 192k -c:a libfdk_aac "$dir/temp_$name.mp4"; ffmpeg -hide_banner -loglevel error -i "$f" -map 0 -c:v copy -c:a libfdk_aac -b:a 192k -ac 2 -af volume=2 -movflags faststart "$dir/temp_$name.mp4";
mv "$f" "$dir/_$file"; mv "$f" "$dir/_$file";
mv "$dir/temp_$name.mp4" "$dir/$file"; mv "$dir/temp_$name.mp4" "$dir/$file";
done done
} }
# # ffmpeg audio-to-ac3
# Cut parts of the file function ff-input-to-ac3() {
# ffmpeg -hide_banner -loglevel error -i "$1" -movflags faststart -map 0 -c:v copy -c:s copy -c:a ac3 -b:a 448k "temp_$1"
mv "$1" "_$1" && mv "temp_$1" "$1"
## ffmpeg cut X seconds from start
function ff-cutstart {
local time="${2:-00:00:08.590}"
mv "$1" "_$1"
ffmpeg -hide_banner -loglevel error -ss $time -i "_$1" -map 0 -c copy -movflags faststart "$1"
} }
## ffmpeg cut X seconds from start
function ff-cutend {
local time="${2:-24.250}"
duration=`ffprobe -v error -show_entries format=duration -of csv=p=0 "$1"`
duration=`bc --expression=$duration-$time`
mv "$1" "_$1"
ffmpeg -hide_banner -loglevel error -ss 00:00:00 -to $duration -i "_$1" -map 0 -c copy -movflags faststart "$1"
}
#
# Correct/fix aspect ratio
#
# ffmpeg fix 16:9 AR # ffmpeg fix 16:9 AR
function ff-ar16-9() { function ff-ar16-9() {
ffmpeg -hide_banner -loglevel error -i "$1" -c copy -map 0 -bsf:v "h264_metadata=sample_aspect_ratio=4/3" -aspect 16:9 -pix_fmt yuv420p -movflags faststart "temp_$1" ffmpeg -hide_banner -loglevel error -i "$1" -c copy -map 0 -bsf:v "h264_metadata=sample_aspect_ratio=4/3" -aspect 16:9 -pix_fmt yuv420p -movflags faststart "temp_$1"
@ -188,3 +132,42 @@ function ff-ar-custom() {
ffmpeg -hide_banner -loglevel error -i "$1" -c copy -map 0 -bsf:v "h264_metadata=sample_aspect_ratio=$2" -aspect $3 -pix_fmt yuv420p -movflags faststart "_$1" ffmpeg -hide_banner -loglevel error -i "$1" -c copy -map 0 -bsf:v "h264_metadata=sample_aspect_ratio=$2" -aspect $3 -pix_fmt yuv420p -movflags faststart "_$1"
fi fi
} }
# ffmpeg fix Non-monotonous DTS
function ff-dts() {
ffmpeg -hide_banner -loglevel error -fflags +igndts -i "$1" -c copy -pix_fmt yuv420p -movflags faststart "temp_$1"
mv "$1" "_$1" && mv "temp_$1" "$1"
}
## ffmpeg wma-to-m4a
function ff-wma-m4a() {
findpath=$1
: "${findpath:="."}"
find "$findpath" -name '*.wma' | while read -r f ; do
dir=$(dirname "$f");
file=$(basename "$f");
name="${file%.*}";
ext="${file##*.}";
ffmpeg -hide_banner -loglevel error -i "$f" -map 0 -vn -b:a 192k -c:a libfdk_aac "$dir/temp_$name.mp4";
mv "$f" "$dir/_$file";
mv "$dir/temp_$name.mp4" "$dir/$file";
done
}
## ffmpeg cut X seconds from start
function ff-cutstart {
local time="${2:-00:00:08.590}"
mv "$1" "_$1"
ffmpeg -hide_banner -loglevel error -ss $time -i "_$1" -map 0 -c copy -movflags faststart "$1"
}
## ffmpeg cut X seconds from start
function ff-cutend {
local time="${2:-24.250}"
duration=`ffprobe -v error -show_entries format=duration -of csv=p=0 "$1"`
duration=`bc --expression=$duration-$time`
mv "$1" "_$1"
ffmpeg -hide_banner -loglevel error -ss 00:00:00 -to $duration -i "_$1" -map 0 -c copy -movflags faststart "$1"
}