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