[FFmpeg-user] moving from FLV to MP4 container
c-map at hotmail.com
Thu Aug 16 20:14:29 CEST 2012
> > C:\Users\admin\Documents\videos>ffmpeg -i video.flv
> > FFmpeg version git-N-29181-ga304071, Copyright (c) 2000-2011 the FFmpeg develope
> > rs
> > built on Apr 18 2011 21:24:03 with gcc 4.5.2
> This version is a bit old have you considered trying the latest?
I've done this now, and it seems to have worked.
Do you have an idea of why the duration and bitrates are still different?
FLV: 46:39.67 MP4: 46:39.66
FLV: 336 kb/s MP4: 335 kb/s
FLV: 253 kb/s MP4: 246 kb/s
FLV: 82 kb/s MP4: 79 kb/s
I've also noticed this difference in the properties displayed by ffmpeg -i video.(flv | mp4):
Input #0, flv, from 'video.flv':
[mov,mp4,m4a,3gp,3g2,mj2 @ 0228bf20] multiple edit list entries, a/v desync migh
t occur, patch welcome
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
Why are there multiple edit list entries, why might they cause a/v desync to occur, and how can I reduce them to one?
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