Ls * | perl -ne 'print "file $_"' | ffmpeg -f concat -i -c copy merged. So why not leave the audio format detection up to ffmpeg?įfmpeg -i videofile.mp4 -vn -acodec libvorbis audiofile.oggįor vid in *.mp4 do ffmpeg -i "$vid" -vn -acodec libvorbis "$.mp3" done Merge Multiple Videosįile names in folder, if they contain spaces, must be properly escaped But what if the audio in the mp4 file is not one of those? you'd have to transcode anyway. You say you want to "extract audio from them (mp3 or ogg)". Remove -c copy if you want the audio to be re-encoded. This copies the audio and does not re-encode it. The output audio file is in aac format, but its still playable audio, if you are using. Video and subtitles will be excluded.-c copy enables stream copy mode. Replace the input.mp4 with video file you want to extract its audio. The last param is the name of the output file. This puts all audio into one file: ffmpeg -i input.mov -map 0:a -c copy output.mov -map 0:a selects all audio streams only.
The third option i.e -ab 192000 tells ffmpeg that we want the output to be encoded at 192Kbps and -vn tells ffmpeg that we dont want video. The second option -f mp3 tells ffmpeg that the ouput is in mp3 format. The -i option in the above command is simple: it is the path to the input file.
Ffmpeg -i video.mp4 -f mp3 -ab 192000 -vn music.mp3
0 kommentar(er)
