have ffmpeg scan and report correct time

Posted by acidzombie24 on Super User See other posts from Super User or by acidzombie24
Published on 2010-03-18T09:17:01Z Indexed on 2010/03/18 9:21 UTC
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ffmpeg

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audio

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timing

I am encoding a section of a song. I used -ss offset -t 30 (duration). When i use -i file.acc i see it says the audio is 31, 32 and once 36 seconds long. Opening it in vlc showed it as 30sec after a few seconds of playback.

My code needs to filter sounds more then 30 seconds. I can fudge it and allow 30.99 (maybe 20.48 is better) however 2 seconds too long is not good and i would need to filter this out even though playback is 30seconds long. How do i get ffmpeg to scan the file and report an accurate time?

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