[FFmpeg-user] media play too fast

Bart Coninckx info at bitsandtricks.com
Thu Nov 18 16:00:55 EET 2021

-----Original message-----
From:	S. Helbig via ffmpeg-user <ffmpeg-user at ffmpeg.org>
Sent:	Thu 18-11-2021 11:58
Subject:	Re: [FFmpeg-user] media play too fast
To:	FFmpeg user questions <ffmpeg-user at ffmpeg.org>; 
CC:	S. Helbig <s.helbig at mailbox.org>; 
> Am 18/11/2021 um 02:04 schrieb Bart Coninckx <info at bitsandtricks.com>:
> > 
> > Hi,
> > 
> > not sure when, why and how it changed, but at a certain moment video and mp3 
> files started to run faster than usual (witch chipmunk like speech). I have a 
> Radeon RX550 card which I use for HDMI output. The OS is Xubuntu 20.04 
> runni18ng Kodi 18. The problem is however not limited to Kodi, other media 
> players show the same problem, like Mplayer. 
> > 
> > In the Kodi logfiles I can see that their player uses FFMpeg, so I'm 
> wondering if the problem lies there.
> I am experiencing the same with a camera stream mp3 that I record and then play 
> via VLC.
> Haven’t found a solution but my guess is that this is about a difference in how 
> many frames/sec had been recorded and how many are played.
> So may an input source have provided a lower frame rate at some point?
> Stephan
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Hi Stephan,

I do see sometimes a discrepancy in the sample rate (44100 Hz versus 48000 Hz), but why then only files with the MPEG coded, that mystifies me somewhat,


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