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command extracts the audio from a video file and puts it in a MP3 file.
Ffmpeg automatically works out the right codecs to use from the output
file extension, in this case it's MP3.
ffmpeg -i VIDEOFILE OUTPUTFILE.mp3
If you wish to do the same with ann OGG file, you have to specificy
that you want audio only, you can do this with the -vn argument.
ffmpeg -i VIDEOFILE -vn OUTPUTFILE.ogg
on August 26, 2019