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tetras_extraction/script/extract_mp3.sh

@@ -10,6 +10,9 @@ while [ -n "$1" ]; do
 		shift
 		output_dir="$1"
 		;;
+	"-y" | "--yes-overwrite")
+		overwrite="-y"
+		;;
 	*)
 		input_file="$1"
 		;;
@@ -18,7 +21,7 @@ while [ -n "$1" ]; do
 done
 
 if [ -z "$input_file" ]; then
-	echo "Usage: $0 [-o|--output-dir <dir>] <file>"
+	echo "Usage: $0 [-y|--yes-overwrite] [-o|--output-dir <dir>] <file>"
 	exit 1
 fi
 
@@ -30,7 +33,7 @@ streams="$(ffprobe -show_streams $input_file -of json 2>/dev/null | jq -r '.stre
 echo "$input_file: found $(wc -l <<<$streams) MP3 streams: $streams"
 
 # Assemble ffmpeg command line by adding '-map' argument and outfile for each stream
-cmd="ffmpeg -i $input_file -vn -c:a copy"
+cmd="ffmpeg $overwrite -i $input_file -vn -c:a copy"
 i=0
 while read -r stream_id; do
 	cmd="$cmd -map 0:$stream_id $output_dir/$(basename "$input_file").$i.mp3"