How to get metadata from running mpg123?

normanos · 03-09-2015, 04:10 PM

Have OpenSuse 12 Linux.
Have software wich using mpg123 as player.
Is it possible to get Song and Artist info from running mpg123 to text file? Maybe from top or htop? All song have ID3 tags.
For example, now it.s playing song:

Quote:

mpg123 -q -s -k 19 /srv/music/song1.mp3

Wish to get "song1" into text file.
Playlist txt file is very specific so can.t get info from it.
Any questions, just ask.

unSpawn · 03-09-2015, 06:41 PM

Can't you just use something like

Code:

mp3info -p "\"%F\";\"%a\";\"%l\";\"%t\";\n" /srv/music/song1.mp3 >> ~/songs.csv

normanos · 03-09-2015, 10:06 PM

mpg123 already working. it.s radio automation software. Thats why i need to get info, more i think, from htop.
Screenshot: http://photo.freefm.co.uk/index.php/...03-10-03-01-23

PID of course every next song changing.
Here is part sample from playlist file:

Quote:

Parm 1802.353 1.043 0.025 356.360 355.110 1.00 nextstart=355.235
File /filmas2/muzika/dance/Armin Van Buuren Feat. Sharon Den Adel - In And Out Of Love.mp3

Parm 2396.646 0.260 0.025 402.560 401.310 1.00 nextstart=401.435
File /filmas2/muzika/dance/DJ Ella - Shine Like A Superstar (Bassmonkeys Extended Mix).mp3

BUt for single file mp3info works fine. I.m trying to get info out from running mpg123.

Hope that extra info will helps.

fatmac · 03-10-2015, 11:52 AM

Maybe use tee (man tee).
Pipe it into tee thence into a file(?).

Edit: Use >> to add/apend to the file.

unSpawn · 03-15-2015, 05:25 AM

Quote:

Originally Posted by normanos

Hope that extra info will helps.

It does. First there's different ways to grab the command line args for the running process, pick one:

Code:

\ps --no-header -C mpg123 -o args

Secondly your command line shows the first 5 fields are arguments to mpg123 so we're lazy and use 'cut':

Code:

echo "/$(\ps --no-header -C mpg123 -o args|cut -d '/' -f 2-)" >> ~/songs.log

So that appends the current track title string to the plain text "~/songs.log".