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@@ -0,0 +1,34 @@
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+#!/bin/bash
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+
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+set -e
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+
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+if [ $# -ne 2 ]; then
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+ echo "usage: $0 in.mp4 out.mp4"
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+ exit 1
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+fi
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+
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+if [ ! -f "$1" ]; then
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+ echo "$1 doesn't exist"
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+ exit 1
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+fi
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+
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+if [ -f "$2" ]; then
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+ echo "$2 exists"
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+ exit 1
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+fi
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+
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+
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+audiofile=$(mktemp).aac
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+videofile=$(mktemp).mp4
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+
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+function finish {
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+ rm -f $audiofile
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+ rm -f $videofile
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+}
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+
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+trap finish EXIT
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+
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+ffmpeg -hide_banner -analyzeduration 16M -i "$1" -c:v copy -an -f mp4 -y $videofile
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+ffmpeg -hide_banner -analyzeduration 16M -i "$1" -c:a copy -vn -bsf:a aac_adtstoasc -y $audiofile
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+
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+ffmpeg -hide_banner -i $audiofile -i $videofile -c copy -bsf:a aac_adtstoasc -y "$2"
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