bash scripts
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Lucas Faber authored and Lucas Vivohost committed
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#!/bin/bash
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set -e
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usage(){
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printf "Usage:
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-i <file>\tInfo
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-av <file>\tChange Audio and Video Codec
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-v <file>\tChange Video Codec
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-a <file>\tChange Audio Codec
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-s <file>\tRemove Subtitles
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-rm <file>\tRemove First Audio
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-subs <file>\tEmbed subtitles
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-dir_down\tDownsize all files in dir to 1920x1080
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-find\tFind files from file and resize
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-d <file>\tDownsize input video
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-filter <file> filter video file\n"
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}
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if [ $# -lt 2 ]; then
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echo "Too few arguments <file> <part of filename to remove>"
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else
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if [ -d "$2" ] || [ ]; then
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echo "Argument is directory"
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input_dir=$2
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elif [ -f "$2" ]; then
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echo "Argument is file"
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input=$2
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else
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echo "Argument $2 doesnt exist"
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exit
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fi
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if [ "$1" == "-av" ]; then
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ffmpeg -i "$input" -vcodec mpeg4 -acodec mp3 -preset veryslow -qp 0 "_$input"
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elif [ "$1" == "-s" ]; then
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ffmpeg -i "$input" -sn -c copy "_$input"
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elif [ "$1" == "-a" ]; then
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ffmpeg -i "$input" -vcodec copy -acodec mp3 -preset veryslow -qp 0 "_$input"
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elif [ "$1" == "-v" ]; then
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ffmpeg -i "$input" -vcodec mpeg4 -preset veryslow -qp 0 -acodec copy "_$input"
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elif [ "$1" == "-rm" ]; then
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ffmpeg -i "$input" -map 0 -map -0:a:0 -c copy -y "_$input";
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# mv "_$file" "$file";
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echo $input
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elif [ "$1" == "-i" ]; then
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ffmpeg -i "$input"
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elif [ "$1" == "-d" ]; then
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ffmpeg -i "$input" -c:v libx264 -crf 27 "${input%%.*}_downsize.${input##*.}"
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elif [ "$1" == "-subs" ]; then
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#for file in *${input}; do ls "subs/$(echo $file | rev | cut -f2- -d'.' | rev).srt" ; done
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for file in *${input}; do
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ls "$(echo $file | rev | cut -f2- -d'.' | rev).srt"
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ffmpeg -i "$file" -f srt -i "$(echo $file | rev | cut -f2- -d'.' | rev).srt" -c copy -c:s mov_text "_$file"
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mv "_$file" "$file"
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done
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elif [ "$1" == "-frame" ]; then
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ffmpeg -ss 00:00:05.01 -i myvideo.avi -frames:v 1 myimage.jpg
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elif [ "$1" == "-cut" ]; then
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ffmpeg -ss 00:00:02 -i GMT20210112-071517_Vorlesung-_1920x1220.mp4 -to 01:28:49 -c copy output.mp4
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elif [ "$1" == "-dir-down" ]; then
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echo "Resize all files in ${input_dir}"
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if [ ! -d "${input_dir}/comp" ];then
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mkdir "${input_dir}/comp"
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fi
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for file in ${input_dir}/*; do
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if [ -f "${file}" ]; then
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#echo ${file%.*} ${file##*.} ${file##*/}
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ffmpeg -i "${file}" -vf scale=1920x1080 "${input_dir}/comp/${file##*/}" 2>/dev/null 1>&2
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fi
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done
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elif [ "$1" == "-find" ]; then
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echo "Find files in ${input_dir}"
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if [ ! -d "${input_dir}/comp" ];then
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mkdir ${input_dir}/comp
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fi
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while read -r line; do
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file=$(find . -name "$line")
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if [ -f "${file}" ]; then
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#echo ${file%.*}
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#echo ${file%/*}
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#echo ${file##*.}
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ffmpeg -i "${file}" -vf scale=1920x1080 "${input_dir}/comp/${file##*/}"
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fi
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done<$3
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echo "Converted all files in ${input_dir}"
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elif [ "$1" == "-file2mp3" ]; then
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codec=$3
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find "${input_dir}" -name "*$codec" -print0 | while read -d $'\0' file; do
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#echo $file
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echo ${file%.*}
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#ffmpeg -i "$file" -sample_fmt s16 -ar 48000 "${file%.*}_.flac"< /dev/null
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#mv "${file%.*}_.flac" "$file"
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ffmpeg -i "$file" -vn -ar 44100 -ac 2 -b:a 192k "${file%.*}.mp3"< /dev/null
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#ffmpeg -i "$file" -ab 320k -map_metadata 0 -id3v2_version 3 "${file%.*}.mp3"< /dev/null
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done
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elif [ "$1" == "-filter" ]; then
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#!/usr/bin/env bash
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file="$2"
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selected_stream="$3"
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file_new="${file%.*}_processed.${file##*.}"
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if [[ -z "$file" ]]; then
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echo "Usage: $0 input_file [audio_stream_index]"
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exit 1
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fi
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# Get list of audio streams
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mapfile -t streams < <(
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ffprobe -v error -select_streams a \
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-show_entries stream=index:stream_tags=language \
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-of json "$file" |
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jq -r '.streams[] | "\(.index),\(.tags.language // "unknown")"'
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)
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stream_count=${#streams[@]}
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if [[ "$stream_count" -eq 0 ]]; then
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echo "No audio streams found."
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exit 1
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fi
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echo "Found $stream_count audio stream(s)."
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# If not provided, prompt when multiple exist
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if [[ -z "$selected_stream" ]]; then
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if [[ "$stream_count" -eq 1 ]]; then
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selected_stream="${streams[0]%,*}"
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echo "Using only audio stream: $selected_stream"
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else
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echo "Available audio streams:"
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i=0
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for s in "${streams[@]}"; do
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idx="${s%,*}"
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lang="${s#*,}"
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echo "[$i] stream_index=$idx language=${lang:-unknown}"
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((i++))
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done
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read -rp "Select audio stream index (ffmpeg stream index): " selected_stream
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fi
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fi
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echo "Processing audio stream: $selected_stream"
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ffmpeg -i "$file" \
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-map 0:v -c:v copy \
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-map 0:a:"$selected_stream" \
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-filter_complex "[0:a]highpass=f=100,\
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acompressor=threshold=-22dB:ratio=4:attack=10:release=150,\
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equalizer=f=2500:t=q:w=1:g=5,\
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equalizer=f=4000:t=q:w=1:g=4,\
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deesser=i=0.4:f=0.25,\
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alimiter=limit=0.95,\
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dynaudnorm=f=200:g=15[a]" \
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-map "[a]" -c:a libvorbis \
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"$file_new"
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echo "Done: $file_new"
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else
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usage
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exit
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fi
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fi
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#Uncompatible Videocodecs:
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# mpeg4 (DX50 / 0x30355844)
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#h264 (High) (avc1 / 0x31637661)
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#Uncompatible AUdiocodecs:
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#Multiple Audiolines
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#Subtitles
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# ffmpeg -i $input -sn -vcodec copy -acodec copy
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#Keep Audio/Video Settings
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# ffmpeg -i $input -acodec copy -vcodec copy
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#delete audio trach 0:1
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#for file in *avi ; do ffmpeg -i "$file" -map 0:0 -map 0:2 -acodec copy -vcodec copy "New_$file"; mv "New_$file" "$file"; done
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#ffmpeg -ss 00:00:00 -i Stargate.mp4 -to 02:09:39 -c copy output.mp4
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# Embed Subtitles
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#for file in Subs/.*srt; do ffmpeg -i "$file" "$(echo $file | sed 's/srt/ass/g')"; done
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#for file in *avi; do ffmpeg -i "$file" -vf ass="Subs/$(echo $file | sed 's/avi/ass/g' | sed 's/S01E/s01e/g')" "New1_$file" ;done
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