felippe-regazio · June 28, 2021 16:06
diff --git a/delay-audio-with-ffmpeg.sh b/delay-audio-with-ffmpeg.sh
 # use this command to add 5-seconds delay to the audio track of a video
 #
 ffmpeg -i input.mp4 -itsoffset 5 -i input.mp4 -map 0:v -map 1:a -vcodec copy -acodec copy delayed.mp4
diff --git a/merge-video-files-with-ffmpeg.sh b/merge-video-files-with-ffmpeg.sh
 # successfully tested on mac os' bash terminal
 # if needed, you can download ffmpeg from http://www.ffmpeg.org/download.html
 # 
 ffmpeg -f concat -safe 0 -i <(for f in ./*.mp4; do echo "file '$PWD/$f'"; done) -c copy output.mp4
	# use this command to add 5-seconds delay to the audio track of a video
	#
	ffmpeg -i input.mp4 -itsoffset 5 -i input.mp4 -map 0:v -map 1:a -vcodec copy -acodec copy delayed.mp4
	# successfully tested on mac os' bash terminal
	# if needed, you can download ffmpeg from http://www.ffmpeg.org/download.html
	#
	ffmpeg -f concat -safe 0 -i <(for f in ./*.mp4; do echo "file '$PWD/$f'"; done) -c copy output.mp4