Extracting the audio from a download.

[ghost]

When extracting the audio from a downloaded video, e.g.

youtube-dl [link] --extract-audio --audio-format mp3 "[title].mp3"

The video is still there when playing the audio in VLC, and subsequently the file won't play in iTunes. Is this intended, and is there no way to remove the video entirely?

[ghost]

Happens with http://www.youtube.com/watch?v=XvdMaY_Qyn4&feature=youtu.be & http://www.youtube.com/watch?v=sXPO9KyX3z4#t=44

Whereas https://www.youtube.com/watch?v=LSui54Xm-wA results in a file that flat out wont play at all.

[phihag]

Mmm, all of these work perfectly fine with me (assuming the "stuck music effect" at the start of these songs is intentional). What output do you get for ffmpeg --version? Also, can you post one entire command line verbatim? The above will fail, because "[title].mp3" is not a valid URL.

[phihag]

I have a hunch: Did you call something like

youtube-dl  LSui54Xm-wA -x --audio-format mp3 -o '%(title)s.mp3'

? This won't work, since the video filename is the same as the audio filename. It should result in the youtube-dl output

[youtube] Post-process file TNGH T - Higehr Gruond.mp3 exists, skipping

but no other warning.

To get the desired behavior, simply use %(ext)s instead:

youtube-dl  LSui54Xm-wA -x --audio-format mp3 -o '%(title)s.(ext)s'

youtube-dl versions after 2013.09.20.1 will raise an error to that effect if you forget (ext)s.

I'm marking this issue as closed now since I believe that to be the problem, and it fits perfectly with your symptoms, i.e. you'll get the video file with audio instead of just an audio file. If that isn't the case, please comment and we'll reopen this issue. Thanks for reporting!

[vanilla38]

since this commit i cant download:
sudo youtube-dl URL --audio-format=mp3 --extract-audio -o randomname.mp3

i automatically get the error message liste above

[phihag]

@vanilla38 Well, that's because the output format is wrong and cannot work this way. And don't call youtube-dl with sudo (unless you've installed it system-wide, and you're updating), that's a very bad idea!

Your invocation is wrong, use %(ext)s, like this:

youtube-dl BaW_jenozKc --audio-format=mp3 --extract-audio -o 'randomname.%(ext)s'

[vanilla38]

thanks alot yea i just tested it manually but command is usually sent by php so no sudo ^^.