basics of ffmpeg cmd #feurious

thanks to Donald Feury / https://youtube.com/Dak4251
https://www.youtube.com/watch?v=fXdaNnAe_MA

to strip the audio
(CMD) (-AN = mute audio) (-i input file) (-c copy for codec - copymeans use existing codec) (output file)
ffmpeg -an -i boris_video.mp4 -c copy boris_altered_video.mp4

you can use similar to strip video by changing "-AN" to "-VN"
ffmpeg -vn -i boris_audio.mp4 -c copy boris_altered_audio.mp4

then to amalgamate these two files together
ffmpeg -i boris_altered_video.mp4 -i boris_altered_audio.mp4 -c copy boris_merged.mp4

HOWEVER there is a better way (do it all in one go)
ffmpeg -an -i boris_altered_video.mp4 -vn -i boris_altered_audio.mp4

(with its so far)
using the MAP command we will use the "1st input 0 (as computers look at 0 as being the first number) as the video input
and the "2nd input 1 (as discussed computers are weird) as the audio input

-map 0:v
-map 1:a

then the codec command

-c copy boris_altered_speech.mp4

togther this looks like


ffmpeg -an -i boris_altered_video.mp4 -vn -i boris_altered_audio.mp4 -map 0:v -map 1:a -c copy boris_altered_speech.mp4


final output https://twitter.com/CallMeDougan/status/1259792512413204480?s=20