So I want to show a list of MP3 files with their durations.
ffprobe does show me the duration of a file. But its output is nasty. It puts everything into stderr and I have found no way to remove its "very helpful" information about how it was compiled.
So if I loop it through *.mp3, that information is displayed every single time.
I could write a filter script but might there be a simpler solution?
To get an output like this:
00:07:22 first.mp3 00:02:33 second.mp3 00:04:04 third.mp3 use:
for file in *.mp3 do echo -n $(ffprobe "$file" 2>&1 | grep 'Duration' | cut -d',' -f1 | cut -d' ' -f4 | cut -d'.' -f1) echo " $file" done where
2>&1 redirects stderr to stdoutgrep ... filters just the line with the durationcut ... extracts Duration: 00:07:22.33cut ... extracts 00:07:22.33cut ... extracts 00:07:22You can easily get rid of the information that is put into stderr with the -loglevel -quiet option. In that case you have to have to query the field you want to display.
[user@host ~]$ ffprobe -loglevel quiet -show_entries format=duration test/test.mp3 [FORMAT] duration=172.434286 [/FORMAT] Now this does still gives some extra information which can be stripped down and the duration in seconds.
[user@host test]$ ffprobe -loglevel quiet -show_entries format=duration \-print_format default=noprint_wrappers=1:nokey=1 -pretty test.mp3 0:02:52.434286 Here, the -print_format can be used to get rid of the extra information:
default=noprint_wrappers=1 will remove the [FORMAT] stuffnokey=1 will remove the keyname duration=Last but not least, you can use -pretty or just -sexagesimal to convert the duration in seconds to a HH:MM:SS.MICROSECONDS format.
To find all MP3 files in a folder you could combine find and the ffprobe command from above.
[user@host ~]$ find test/ -name '*mp3' -printf "%f:\t" -exec ffprobe -loglevel error -print_format default=noprint_wrappers=1:nokey=1 -pretty -show_entries stream=duration "{}" \; test.mp3: 0:02:52.434286 