FFMPEG get video file duration: Ruby

Mar

FFMPEG get video file duration: Ruby

Posted (Amit) in Ruby on Rails on 10-03-2009

def get_video_file_duration(inputFilename)
            command = "ffmpeg -i "
                             + inputFilename.to_s + " 
                             2>&amp;1 | grep 'Duration' 
                             | cut -d ' ' -f 4 | sed s/,//"
                             output = `#{command}`
 
          if output =~ /([\d][\d]):([\d][\d]):([\d][\d]).([\d]+)/
               duration = (($1.to_i * 60 + $2.to_i) * 60 + $3.to_i) * 10 + $4.to_i
          end
 
          #return duration.to_s
          return "#{$2}:#{$3}"
 end

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Posted by : Amit | Leave a Comment |

Comments (3)

resha said on 24-10-2009
	I’ve been looking for this.. thank you..

magne said on 10-08-2011

Thanks a lot Amit. One note though. I think it should be times a hundred, instead of ten, if you want the result in milliseconds, like this:

duration = (($1.to_i * 60 + $2.to_i) * 60 + $3.to_i) * 100 + $4.to_i

# …

return duration.to_s
#return "#{$2}:#{$3}"
If you rather want the result in seconds, it should be:

duration = (($1.to_i * 60 + $2.to_i) * 60 + $3.to_i) + ($4.to_i / 100)

return duration.to_s
#return "#{$2}:#{$3}"

Amit said on 11-08-2011
	This is nice, thanks for sharing