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@@ -2,8 +2,8 @@
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set -e
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-if [ $# -ne 2 ]; then
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- echo "usage: $0 in.mp4 out.mp4"
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+if [ $# -ne 1 ]; then
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+ echo "usage: $0 in.mp4"
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exit 1
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fi
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@@ -12,12 +12,14 @@ if [ ! -f "$1" ]; then
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exit 1
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fi
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-if [ -f "$2" ]; then
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- echo "$2 exists"
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+tmpfile="$1.tmp"
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+if [ -f "$tmpfile" ]; then
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+ echo "$tmpfile exists"
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exit 1
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fi
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+mv "$1" "$tmpfile"
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audiofile=$(mktemp).aac
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videofile=$(mktemp).mp4
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@@ -28,7 +30,9 @@ function finish {
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trap finish EXIT
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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 $audiofile
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+ffmpeg -hide_banner -analyzeduration 16M -i "$tmpfile" -c:v copy -an -f mp4 -y $videofile
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+ffmpeg -hide_banner -analyzeduration 16M -i "$tmpfile" -c:a copy -vn -bsf:a aac_adtstoasc -y $audiofile
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-ffmpeg -hide_banner -i $audiofile -i $videofile -c copy -bsf:a aac_adtstoasc -y "$2"
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+ffmpeg -hide_banner -i $audiofile -i $videofile -c copy -bsf:a aac_adtstoasc -y "$1"
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+
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+rm -f "$tmpfile" #no quiero borrarlo a menos que todo haya salido bien
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