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dotfiles/home/programs/scripts/mp4concat

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#!/usr/bin/env bash
set -eu
tmpext="_mp4-concat.tmp.ts"
TMP_FILES=()
for f in "$@"; do
TMP_FILES+=("$f$tmpext")
ffmpeg -i "$f" -c copy -bsf:v h264_mp4toannexb -f mpegts "$f$tmpext"
done
concat_files=$(printf "|%s" "${TMP_FILES[@]}")
concat_files=${concat_files:1}
out_file="mp4concat_${RANDOM}.mp4"
ffmpeg -i "concat:$concat_files" -c copy -bsf:a aac_adtstoasc "$out_file"
for f in "${TMP_FILES[@]}"; do
rm "$f"
done
strip-metadata "$out_file"