[FFmpeg-trac] #3678(avcodec:new): Regressions in the video duration/bitrate report
FFmpeg
trac at avcodec.org
Wed May 28 11:12:50 CEST 2014
#3678: Regressions in the video duration/bitrate report
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Reporter: Malizor | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by cehoyos):
Replying to [comment:2 Malizor]:
> Replying to [comment:1 cehoyos]:
> > Replying to [ticket:3678 Malizor]:
> > > {{{
> > > Duration: 00:00:00.16, start: 0.000000, bitrate: 52428 kb/s
> > > }}}
> >
> > Do you believe that this value is correct?
>
> Yes.
> The full video file is 40G and is 1h 26mn long.
Does this really imply ~50Mb/s? Doesn't sound correct to me.
How does old {{{ffmpeg -i}}} look for your complete 40G sample?
> New versions of ffmpeg detect it as being 9h 48m long
And a warning is shown that this value is maybe incorrect.
> I understand what you say about the bitrate, but it's sure that it is
truly higher than the detected 9118 kb/s.
Of course.
The bitrate of the file is unknown / wrong because the video stream
doesn't store a bitrate.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3678#comment:3>
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