82 lines
2.2 KiB
Text
82 lines
2.2 KiB
Text
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#!/usr/bin/sh
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usage ()
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{
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printf "Usage : noisereduce <input video file> <output video file>\n"
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exit
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}
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# Tests for requirements
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ffmpeg -version >/dev/null || { echo >&2 "We require 'ffmpeg' but it's not installed. Install it by 'sudo apt-get install ffmpeg' Aborting."; exit 1; }
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sox --version >/dev/null || { echo >&2 "We require 'sox' but it's not installed. Install it by 'sudo apt-get install sox' Aborting."; exit 1; }
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if [ "$#" -ne 2 ]
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then
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usage
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fi
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if [ ! -e "$1" ]
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then
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printf "File not found: %s\n" "$1"
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exit
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fi
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if [ -e "$2" ]
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then
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printf "File %s already exists, overwrite? [y/N]\n: " "$2"
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read -r yn
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case $yn in
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[Yy]* ) ;;
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* ) exit;;
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esac
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fi
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inBasename=$(basename "$1")
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inExt="${inBasename##*.}"
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isVideoStr=$(ffprobe -v warning -show_streams "$1" | grep codec_type=video)
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if [ -n "$isVideoStr" ]
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then
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isVideo=1
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printf "Detected %s as a video file\n" "$inBasename"
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else
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isVideo=0
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printf "Detected %s as an audio file\n" "$inBasename"
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fi
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printf "Sample noise start time [00:00:00]: "
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read -r sampleStart
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if [ -z "$sampleStart" ] ; then sampleStart="00:00:00"; fi
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printf "Sample noise end time [00:00:00.900]: "
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read -r sampleEnd
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if [ -z "$sampleEnd" ] ; then sampleEnd="00:00:00.900"; fi
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printf "Noise reduction amount [0.21]: "
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read -r sensitivity
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if [ -z "$sensitivity" ] ; then sensitivity="0.21"; fi
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tmpVidFile="/tmp/noiseclean_tmpvid.$inExt"
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tmpAudFile="/tmp/noiseclean_tmpaud.wav"
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noiseAudFile="/tmp/noiseclean_noiseaud.wav"
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noiseProfFile="/tmp/noiseclean_noise.prof"
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tmpAudCleanFile="/tmp/noiseclean_tmpaud-clean.wav"
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printf "Cleaning noise on %s...\n" "$1"
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if [ $isVideo -eq "1" ]; then
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ffmpeg -v warning -y -i "$1" -qscale:v 0 -vcodec copy -an "$tmpVidFile"
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ffmpeg -v warning -y -i "$1" -qscale:a 0 "$tmpAudFile"
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else
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cp "$1" "$tmpAudFile"
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fi
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ffmpeg -v warning -y -i "$1" -vn -ss "$sampleStart" -t "$sampleEnd" "$noiseAudFile"
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sox "$noiseAudFile" -n noiseprof "$noiseProfFile"
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sox "$tmpAudFile" "$tmpAudCleanFile" noisered "$noiseProfFile" "$sensitivity"
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if [ $isVideo -eq "1" ]; then
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ffmpeg -v warning -y -i "$tmpAudCleanFile" -i "$tmpVidFile" -vcodec copy -qscale:v 0 -qscale:a 0 "$2"
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else
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cp "$tmpAudCleanFile" "$2"
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fi
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printf "Done"
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