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VOB files stuttering

Posted: Mon Jan 11, 2016 6:44 am
by bryantjopplin
I have tons of dvd vob files that play just fine when they aren't being transcoded but when they are even on a 866mps wireless ac connection and wired connection they are stuttering. Every other file I have plays fine, it just seems the transcoding for the vob files aren't up to par. Thanks.

Edit: I guess I should have said I have noticed this in like all of 4.0 and 5.0 with 6.0 alpha. I have a i7-4770 and 16gb of ram. Read that it could be the encoder introduced in that updated sb42 or 43 cant remember.

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 7:15 am
by Wolfgan
Blind guessing if you don't provide more info, as stated in red above viewtopic.php?f=9&t=556

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 8:59 am
by bryantjopplin
I don't think it's a bug is why I was asking. Just wondering if I missed a step.

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 9:06 am
by bryantjopplin
Wolfgan wrote:Blind guessing if you don't provide more info, as stated in red above viewtopic.php?f=9&t=556
ums_dbg.zip
(177.63 KiB) Downloaded 753 times
Here is the log.

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 9:08 am
by Nadahar
I don't know if this has anything to do with stuttering, but we've gotten a tip that

Code: Select all

container == iso :: -nosync
causes synchronization issues for DVD ISO's.

You could try to change it, or tinker with the transcoder settings by going to "Transcoder Settings" -> MEncoder -> Codec-specific settings. Since you can't "remove" a setting from the default, you have to disable "Use application defaults" and then paste the other lines under "Custom parameters":

Code: Select all

(container == avi || container == matroska) && vcodec == mpeg4 && acodec == mp3 :: -mc 0.1
container == flv :: -mc 0.1
container == mov :: -mc 0.1
container == rm  :: -mc 0.1
container == mp4 && vcodec == h264 :: -mc 0.1
This is a shot in the dark, but it could be worth trying.

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 9:13 am
by Nadahar
Looking at your configuration, I see

Code: Select all

maximum_bitrate =15
Try setting this to zero.

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 9:44 am
by bryantjopplin
Nadahar wrote:Looking at your configuration, I see

Code: Select all

maximum_bitrate =15
Try setting this to zero.
I had it at zero. Just was trying different strings to troubleshoot. I will try the other when I get home.
Thanks

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 1:42 pm
by bryantjopplin
Nadahar wrote:I don't know if this has anything to do with stuttering, but we've gotten a tip that

Code: Select all

container == iso :: -nosync
causes synchronization issues for DVD ISO's.

You could try to change it, or tinker with the transcoder settings by going to "Transcoder Settings" -> MEncoder -> Codec-specific settings. Since you can't "remove" a setting from the default, you have to disable "Use application defaults" and then paste the other lines under "Custom parameters":

Code: Select all

(container == avi || container == matroska) && vcodec == mpeg4 && acodec == mp3 :: -mc 0.1
container == flv :: -mc 0.1
container == mov :: -mc 0.1
container == rm  :: -mc 0.1
container == mp4 && vcodec == h264 :: -mc 0.1

This is a shot in the dark, but it could be worth trying.

Ok the stuttering isnt as bad but about 5 minutes in it stops playing. here is the log
ums_dbg.zip
(160.71 KiB) Downloaded 615 times

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 1:51 pm
by Nadahar
I'm simply in over my head here, I know very little about this and just remembered someone else saying that this parameter broke DVD ISO playback. The only thing I know is that these lines is thrown constantly during playback:

Code: Select all

DEBUG 2016-01-10 15:22:42.037 [mencoder.exe-14-2] net.pms.io.OutputTextLogger [mpeg2video @ 00ea8940]rc buffer underflow
DEBUG 2016-01-10 15:22:42.037 [mencoder.exe-14-2] net.pms.io.OutputTextLogger [mpeg2video @ 00ea8940]max bitrate possibly too small or try trellis with large lmax or increase qmax
Whatever buffer "rc" is, I'm pretty sure that's the reason it stutters. You'll just have to wait until someone that knows more about this than me comes along.

Re: VOB files stuttering

Posted: Mon Jan 11, 2016 2:01 pm
by bryantjopplin
Nadahar wrote:I'm simply in over my head here, I know very little about this and just remembered someone else saying that this parameter broke DVD ISO playback. The only thing I know is that these lines is thrown constantly during playback:

Code: Select all

DEBUG 2016-01-10 15:22:42.037 [mencoder.exe-14-2] net.pms.io.OutputTextLogger [mpeg2video @ 00ea8940]rc buffer underflow
DEBUG 2016-01-10 15:22:42.037 [mencoder.exe-14-2] net.pms.io.OutputTextLogger [mpeg2video @ 00ea8940]max bitrate possibly too small or try trellis with large lmax or increase qmax
Whatever buffer "rc" is, I'm pretty sure that's the reason it stutters. You'll just have to wait until someone that knows more about this than me comes along.
im not sure what im missing lol