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Video captured with -n plays much faster #13

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techtonik opened this issue Aug 17, 2016 · 2 comments
Open

Video captured with -n plays much faster #13

techtonik opened this issue Aug 17, 2016 · 2 comments

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@techtonik
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techtonik commented Aug 17, 2016 •
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Just recorded this on Ubuntu 16.04 and it appears that it plays about 3.6x times faster than real time. Command used:

recordscreen.py -n --fps=60 -s 300x1200 mcspeed.webm

And here is the calculation based on video time from VLC and recorded stopwatch - https://www.desmos.com/calculator/q6qd9b6xq5 - doesn't look like it is a VLC bug.

image
@techtonik techtonik mentioned this issue Aug 17, 2016
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@cessen
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cessen commented May 26, 2017

Huh... that's really weird.

Is there anything we can do about that from this script? Or do we need to file a bug against ffmpeg/libav?

@techtonik
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I'd say it is ffmpeg/avconv bug, but it needs to be confirmed. I am a little far from Ubuntu right now.

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@techtonik @cessen