Get length of a video using regex and ffmpeg
Solution 1
You can use the shell
$ ff=$(ffmpeg -i video.mp4 2>&1)
$ d="${ff#*Duration: }"
$ echo "${d%%,*}"
Solution 2
This way you get the duration in seconds. I think this is more convenient.
ffprobe -loglevel error -show_streams inputFile.mp3 | grep duration | cut -f2 -d=
ffprobe comes with ffmpeg so you should have it.
EDIT:
For a more dedicated version you could use for example
ffprobe -loglevel error -show_format -show_streams inputFile.extension -print_format json
Instead of JSON you could also use e.g. CSV or XML. For more output options look here http://ffmpeg.org/ffprobe.html#Writers
Solution 3
Do you want to do this in a bare shell pipeline, or read the result in a calling program?
/\s+Duration: ((\d\d):(\d\d):(\d\d)\.(\d+))/
… is a PCRE that will split the result up (replace the \.
with [;:.]
if ffmpeg might output the duration in frames rather than fractional seconds). In a Unix pipeline:
| grep Duration: | cut -f2- -d: | cut -f1 -d, | tr -d ' '
There are of course a billion other ways to express this.
Solution 4
Format (container) duration:
$ ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 input.mp4
30.024000
Adding the -sexagesimal
option will use the HOURS:MM:SS.MICROSECONDS
time unit format:
0:00:30.024000
Duration of the first video stream:
$ ffprobe -v error -select_streams v:0 -show_entries stream=duration -of default=noprint_wrappers=1:nokey=1 input.mp4
30.000000
https://trac.ffmpeg.org/wiki/FFprobeTips#Duration
Solution 5
Duration: (\d\d):(\d\d):(\d\d(\.\d\d)?)
should work. Whatever your language's $1
is will be the hours, $2
will be the minutes, $3
will be the seconds, and $4
will be just the centiseconds if they are exist.
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David542
Updated on June 04, 2022Comments
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David542 about 2 years
From the following
ffmpeg -i
output, how would I get the length (00:35)--$ ffmpeg -i 1video.mp4 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/david/Desktop/1video.mp4': Metadata: major_brand : isom minor_version : 1 compatible_brands: isomavc1 creation_time : 2010-01-24 00:55:16 Duration: 00:00:35.08, start: 0.000000, bitrate: 354 kb/s Stream #0.0(und): Video: h264 (High), yuv420p, 640x360 [PAR 1:1 DAR 16:9], 597 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc Metadata: creation_time : 2010-01-24 00:55:16 Stream #0.1(und): Audio: aac, 44100 Hz, stereo, s16, 109 kb/s Metadata: creation_time : 2010-01-24 00:55:17 At least one output file must be specified
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Kerrek SB almost 13 yearsWhy have you decided that you must use a regular expression? It looks like a simple string search (or on the shell, a combination of
grep
andcut
) will do fine.
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thevoipman over 11 yearssay result is: 00:00:34.03 - how do we make this show in seconds... even if it's 01:34:03 - how can we make this show the total amount of seconds
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Tyler over 9 yearsYou can add up all durations in the current directory with this bash one-liner: for f in *; do (ffprobe -loglevel error -show_streams $f | grep duration | head -1 | cut -f2 -d=); done | awk '{ s += $1 } END { print s / 60 " minutes" }'