Compress Video and Remove Silence at Start and throughout

compress_video.sh

#!/bin/bash 
: << 'COPYRIGHT_NOTICE'

MIT License

Copyright (c) 2022 ColhounTech Limited

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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SOFTWARE.

COPYRIGHT_NOTICE

# you may want to tweak these settings 

LOGLEVEL="info"
#verbose
#info 
#error 
#fatal 
#panic 


# input arguments 
inargs=( 
     -y 
     -vsync 0
     -hwaccel cuda 
     -hwaccel_output_format cuda
     -resize 1280x720
) 

# output arguments 
outargs=(
     -af silenceremove=1:0:-50dB
     -c:v h264_nvenc
     -b:v 1M
) 
 
# some other useful output args 
# -filter:a loudnorm 
# -c:v copy
# -c:a copy instead of (-af silenceremove=1:0:-50dB) if we are just copying audio

# 
# don't change anything below this line, unless you know what you are doing 
# 
 
 
# track times from start to end 
STARTTIME=`date +%s` 


# get infile and outfile
BASENAME=$(basename "$1" | rev | cut -d. -f2-| rev  ) 
PATHTO=$(dirname  "$1" )

infile=$1 
outfile="$PATHTO/$BASENAME-compressed.mp4" 

# find out if ffmpeg support a filter 
# ffmpeg -hide_banner -filters | grep silenceremove 

echo ">>>>>>" 
echo ">>>>>>       INPUT     : $infile" 
echo ">>>>>>       OUTPUT    : $outfile" 
echo ">>>>>>       IN ARGS   : ${inargs[@]}" 
echo ">>>>>>       OUT ARGS  : ${outargs[@]}" 
echo ">>>>>>" 

echo ffmpeg -hide_banner "${inargs[@]}" -i "$infile" "${outargs[@]}" "$outfile" 
ffmpeg -hide_banner "${inargs[@]}" -i "$infile" "${outargs[@]}" "$outfile" 
 
ENDTIME=`date +%s` RUNTIME=$((ENDTIME-STARTTIME)) 
echo "Done! (took $RUNTIME seconds)"