From 5d44e91d61bfc90fca1b86a6f2c8dfc2ffd59dbd Mon Sep 17 00:00:00 2001
From: "loic.allegre" <loic.allegre@ensiie.fr>
Date: Fri, 9 Aug 2019 17:24:55 +0200
Subject: [PATCH] Added extractWav.sh
---
extractWav.sh | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 extractWav.sh
diff --git a/extractWav.sh b/extractWav.sh
new file mode 100644
index 0000000..59d2b02
--- /dev/null
+++ b/extractWav.sh
@@ -0,0 +1,68 @@
+#!/bin/bash
+
+USAGE_MESSAGE="usage : $0 source_folder dest_folder"
+if [ $# != 2 ]; then
+ echo $USAGE_MESSAGE; exit 1;
+fi
+
+
+for filename in "$1"/*.mkv; do
+ echo $filename
+ [ -e "$filename" ] || continue
+ name=${filename##*/}
+ base=${name%.mkv}
+
+ codecLine=$(mkvinfo "$filename" | grep " A_")
+ regex=".*A_([A-Z0-9]+).*"
+
+ [[ $codecLine =~ $regex ]]
+
+ codec=${BASH_REMATCH[1]}
+
+ case $codec in
+
+ "AAC")
+ extension="m4a"
+ ;;
+
+ "FLAC")
+ extension="flac"
+ ;;
+
+ "VORBIS")
+ extension="ogg"
+ ;;
+
+ "MPEG")
+ extension="mp3"
+ ;;
+
+ "AC3")
+ extension="ac3"
+ ;;
+
+ "DTS")
+ extension="dts"
+ ;;
+
+ "OPUS")
+ extension="opus"
+ ;;
+
+ *)
+ extension=""
+ ;;
+
+ esac
+
+
+
+ ffmpeg -i "$filename" -acodec copy -vn "$2/$base.$extension" && \
+ ffmpeg -i "$2/$base.$extension" "$2/$base.stereo.wav" && \
+ sox "$2/$base.stereo.wav" "$2/$base.wav" remix - && \
+ rm "$2/$base.stereo.wav" && \
+ rm "$2/$base.$extension"
+
+done
+
+
--
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