Ls * | perl -ne 'print "file $_"' | ffmpeg -f concat -i -c copy merged. You can convert between various video formats or simply extract audio from video. So why not leave the audio format detection up to ffmpeg?įfmpeg -i videofile.mp4 -vn -acodec libvorbis audiofile.oggįor vid in *.mp4 do ffmpeg -i "$vid" -vn -acodec libvorbis "$.mp3" done Merge Multiple Videosįile names in folder, if they contain spaces, must be properly escaped It also converts videos to audio in MP3, AAC, MTS, M4A, RM, OGG etc. 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)". To increase video play back speed command line is: ffmpeg -i video.mpg -vf setpts0.5PTS. Because of the re-encoding from aac to mp3, this will take some time to finish. For example: To extract sound from a video and save it as MP3, you can use command line: ffmpeg -i video1.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 audio3.mp3. ffmpeg -i video.mkv -map 0:a -acodec libmp3lame audio.mp4 We used libmp3lame from the FFmpeg codecs to encode the audio streams and chose mp4 as the container format. The last param is the name of the output file. FFmpeg is a command-line tool that uses commands to convert audio or video formats. 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
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