FFMpeg stutter every second and mencoder audio delay

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Leopardi
Posts: 13
Joined: Fri Jun 09, 2017 6:17 am

FFMpeg stutter every second and mencoder audio delay

Post by Leopardi »

I just changed to a new PC and as also UMS itself seems to have made long progress so I can't tell what causes this. I'm streaming to PS3 and it happens with both wired and wireless.

With FFMpeg the video has a stutter every second, which seems to appear only when skipping to different parts of the video instead of letting it play from the beginning.

With Mencoder it works, but the audio becomes constantly delayed in about 5-10 minutes.

What could I try? Are there some essential transcoding settings that have changed in the last years, that I could roll back to "old settings"?
Leopardi
Posts: 13
Joined: Fri Jun 09, 2017 6:17 am

Re: FFMpeg stutter every second and mencoder audio delay

Post by Leopardi »

I downloaded 13.6 UMS as I saw some people having success with it and now it works.

It also detects the subtitles which were missing with the newest non-beta version. Although it doesn't detect the language in the subtitle selections so you have to guess the correct subtitle, but hey at least it works.
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mik_s
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Re: FFMpeg stutter every second and mencoder audio delay

Post by mik_s »

I don't know what could be causing this so I would have to see your logs to know what is happening. see the section in red above.

I suspect the issue is the "defer to Mencoder for problematic subs" option that is on by default.
There may be another issue too as we discovered here and can be fixed by a tweak of the conf till the proper fix is done in UMS.

The sync issue when using Mencoder is a common problem but I think this will be relied on less in the future as FFmpeg can handle subs quite well.
The only downside with FFmpeg is it can take a few seconds for it to get started when there are many subs so the renderer can time out before it has the chance to start receiving data. Usually playing the video again will make it work as FFmpeg has cached the sub data and start sooner so that may be preferable over it being out of sync.
Logs are important for us to help, Please follow This Link before asking for support. Just a forum cleaner, Will help if I can but no expert.
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