Problem with video and audio stuttering

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Uzerrr
Posts: 29
Joined: Mon Jan 14, 2013 11:32 am

Problem with video and audio stuttering

Post by Uzerrr » Wed Feb 21, 2018 7:06 am

Hello everyone :)
From time to time some video files playback stutters for me. After some time playback 90% of time goes back to normal, sometimes it doesn't.
I have noticed today in debug this info:
DEBUG 2018-02-20 18:56:55.902 [mencoder.exe-4-2] [mpeg2video @ 01fd8940]rc buffer underflow
DEBUG 2018-02-20 18:56:55.903 [mencoder.exe-4-2] [mpeg2video @ 01fd8940]max bitrate possibly too small or try trellis with large lmax or increase qmax
How can I fix this problem?
Thank you very much in advance! :)

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valib
Developer
Posts: 541
Joined: Fri Feb 08, 2013 3:11 am

Re: Problem with video and audio stuttering

Post by valib » Wed Feb 21, 2018 11:48 pm

Have you tried to use FFmpeg (which is the default transcoding engine) instead of Mencoder?

Uzerrr
Posts: 29
Joined: Mon Jan 14, 2013 11:32 am

Re: Problem with video and audio stuttering

Post by Uzerrr » Thu Feb 22, 2018 7:12 am

Yes, I've tried to use mencoder becouse sometimes problem didn't happen then.
With ffmpeg:
DEBUG 2018-02-21 20:09:56.405 [ffmpeg64.exe-4-2] [vob @ 000000000451eb40] packet too large, ignoring buffer limits to mux it
DEBUG 2018-02-21 20:09:56.405 [ffmpeg64.exe-4-2] [vob @ 000000000451eb40] buffer underflow st=1 bufi=2535 size=2560
DEBUG 2018-02-21 20:09:56.405 [ffmpeg64.exe-4-2] [vob @ 000000000451eb40] buffer underflow st=1 bufi=1990 size=2560
DEBUG 2018-02-21 20:09:56.405 [ffmpeg64.exe-4-2] [vob @ 000000000451eb40] buffer underflow st=1 bufi=1445 size=2560
DEBUG 2018-02-21 20:09:56.405 [ffmpeg64.exe-4-2] [vob @ 000000000451eb40] buffer underflow st=1 bufi=900 size=2560
DEBUG 2018-02-21 20:09:56.405 [ffmpeg64.exe-4-2] [vob @ 000000000451eb40] buffer underflow st=1 bufi=355 size=2560
DEBUG 2018-02-21 20:09:56.405 [ffmpeg64.exe-4-2] [vob @ 000000000451eb40] buffer underflow st=1 bufi=2375 size=2560
And this message seems to happen when problem pops-in.

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Nadahar
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Joined: Tue Jun 09, 2015 5:57 pm

Re: Problem with video and audio stuttering

Post by Nadahar » Thu Feb 22, 2018 8:11 am

Is your CPU powerful enough? What CPU do you have?

Uzerrr
Posts: 29
Joined: Mon Jan 14, 2013 11:32 am

Re: Problem with video and audio stuttering

Post by Uzerrr » Thu Feb 22, 2018 9:44 am

I5-3570k, 8GB RAM, Windows 10. Although problems like these I had even when I had Win8.1.

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Nadahar
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Posts: 1106
Joined: Tue Jun 09, 2015 5:57 pm

Re: Problem with video and audio stuttering

Post by Nadahar » Thu Feb 22, 2018 11:34 am

Hmm, that should be plenty. I was just an idea, but it seems like a dead end.

Uzerrr
Posts: 29
Joined: Mon Jan 14, 2013 11:32 am

Re: Problem with video and audio stuttering

Post by Uzerrr » Thu Feb 22, 2018 11:36 am

I thought that maybe my HDD is a problem, but I have tried and moved files to SSD but it didn't help.

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valib
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Re: Problem with video and audio stuttering

Post by valib » Thu Feb 22, 2018 11:41 am

The discussion is worthless when you not follow the instruction written in red above and not send the log.

Uzerrr
Posts: 29
Joined: Mon Jan 14, 2013 11:32 am

Re: Problem with video and audio stuttering

Post by Uzerrr » Fri Feb 23, 2018 7:46 pm

Of course, I am sorry.
Here is the log file. I run the file for 2+ minutes and problems appears @9s and @2min10s
http://www81.zippyshare.com/v/nCDa3Omv/file.html

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Nadahar
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Posts: 1106
Joined: Tue Jun 09, 2015 5:57 pm

Re: Problem with video and audio stuttering

Post by Nadahar » Fri Feb 23, 2018 9:14 pm

Zippyshare is full of intrusive ads and generally inconvenient for us, so I'm attaching the file here.
Attachments
ums_dbg.zip
(107 KiB) Downloaded 18 times

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