Last active
April 22, 2022 04:55
-
-
Save manasmbellani/0a2229d0ed2782c346fe599b07d8c1a2 to your computer and use it in GitHub Desktop.
ffmpeg_extract_audio_between_times.sh - Extract audio/video between times via ffmpeg
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
if [ $# -lt 3 ]; then | |
echo "[-] $0 $action <in-video-audio-file> <start-time-as-HH:MM:SS> <end-time-as-HH:MM:SS/num_seconds> [out-file]" | |
exit | |
fi | |
in_audio_file="$1" | |
start_time="$2" | |
end_time_num_seconds="$3" | |
if [ -z "$out_file" ]; then | |
in_file_ext="${in_audio_file##*.}" | |
in_file_name_without_ext="${in_audio_file%.*}" | |
out_file=`echo "$in_file_name_without_ext""_modified.$in_file_ext"` | |
fi | |
echo "[+] out_file: $out_file" | |
if [ ! -f "$in_audio_file" ]; then | |
echo "[-] File: $in_audio_file not found." | |
exit | |
fi | |
if [ ! -z `echo "$end_time_num_seconds" | grep ":"` ]; then | |
end_time="$end_time_num_seconds" | |
hh_end=`echo "$end_time" | cut -d":" -f1 | sed 's/^0//'` | |
mm_end=`echo "$end_time" | cut -d":" -f2 | sed 's/^0//'` | |
ss_end=`echo "$end_time" | cut -d":" -f3 | sed 's/^0//'` | |
hh_st=`echo "$start_time" | cut -d":" -f1 | sed 's/^0//'` | |
mm_st=`echo "$start_time" | cut -d":" -f2 | sed 's/^0//'` | |
ss_st=`echo "$start_time" | cut -d":" -f3 | sed 's/^0//'` | |
echo "[*] $hh_end,$mm_end,$ss_end $hh_st,$mm_st,$ss_st" | |
num_seconds=$(( (hh_end-hh_st)*3600 + (mm_end-mm_st)*60 + (ss_end-ss_st) )) | |
if [ "$num_seconds" -lt 0 ]; then | |
echo "[-] End time must be before start time. num_seconds: $num_seconds < 0." | |
exit | |
fi | |
else | |
num_seconds="$end_time_num_seconds" | |
fi | |
echo "[+] num_seconds: $num_seconds" | |
echo "[*] Extracting audio between start time: $start_time and num_seconds: $num_seconds" | |
yes | ffmpeg -i "$in_audio_file" -ss "$start_time" -t "$num_seconds" -acodec copy "$out_file" |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment