play back not smooth

[mufjem 0]

firs a little back ground

have collecting media for years. ripping dvd in the video-ts/vob format and blue ray to mkv. they are on pc with asus motherboard with I7 870 and sata6 HD  have used wdtv with my 2010 samsung tv for many years but have started having problem about a year ago.  Decided that time to give up and find an alternative.  A problem was that my dvd were all in vido-ts/vob format which is not well supported.  decided to bite the bullit and convert to mkv using makemkv.  decided to try emby.  Oh also purchased new samsung qled(qn55q70).  in terms of pic quality does a really good job especially given source quality and tv size.  However have a problem with motion especially with panning.  this is variable some appear better than others.  this is not a problem with wdtv which i can still used(but many features of emby soooo much better).  I have the same problem when I use samsung, roku and fire stick app.  appears the frame rate is 30fps as reported by the samsung app

the problem i would simply describe as judder which i understand to be related to framerate.  so is the a problem with emby playback.  why does wdtv work goo but not emby.  is there a workaround.  part of plan is it upgrade to I5 660 pc will this help or should I upgrade to better.  Oh also my network is both wired and wireless with verizon 1100 router. samsung is wired and roku and firestick wireless

so any comments or suggestions if you need more info let me know.  could sti revert to wd tv cause found away to work with new file format but it will eventually die.  Also I love the emby library and the options to allow customization

thanks in advance for any help

[Luke 42083]

 

Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. Thanks!

 

[Gilgamesh_48 1240]

18 hours ago, mufjem said:

firs a little back ground

have collecting media for years. ripping dvd in the video-ts/vob format and blue ray to mkv. they are on pc with asus motherboard with I7 870 and sata6 HD  have used wdtv with my 2010 samsung tv for many years but have started having problem about a year ago.  Decided that time to give up and find an alternative.  A problem was that my dvd were all in vido-ts/vob format which is not well supported.  decided to bite the bullit and convert to mkv using makemkv.  decided to try emby.  Oh also purchased new samsung qled(qn55q70).  in terms of pic quality does a really good job especially given source quality and tv size.  However have a problem with motion especially with panning.  this is variable some appear better than others.  this is not a problem with wdtv which i can still used(but many features of emby soooo much better).  I have the same problem when I use samsung, roku and fire stick app.  appears the frame rate is 30fps as reported by the samsung app

the problem i would simply describe as judder which i understand to be related to framerate.  so is the a problem with emby playback.  why does wdtv work goo but not emby.  is there a workaround.  part of plan is it upgrade to I5 660 pc will this help or should I upgrade to better.  Oh also my network is both wired and wireless with verizon 1100 router. samsung is wired and roku and firestick wireless

so any comments or suggestions if you need more info let me know.  could sti revert to wd tv cause found away to work with new file format but it will eventually die.  Also I love the emby library and the options to allow customization

thanks in advance for any help

I see the same issue from time to time, much more often on my Rokus than on any other of my devices. (Shield and Fire TV) I have tried to isolate/debug the problem and found that, again for me, it is virtually exclusively for recorded content and the only time, other than when there is a actually glitch in the recording, is when I am playing a show, delayed, while recording or any recorded playback on my Rokus.

I do not have a solution but, for recorded playback, I have started using my Fire TV nearly exclusively. 

It is, for me, pretty easy to switch devices for playback.
As a side note I would use my Fire TV, or my Shield TV, for everything Emby but the interface mainly the behavior of FF/RW and other trick play buttons inside Emby is not, for me, nearly as good on Android type devices as those things are on my Rokus. I will readily admit that it could be a case of being much more familiar with Rokus. The very first true streaming box I ever bought was a Roku N1000 way back when it was called "The Netflix Streamer."

I think there are settings somewhere in the recordings set up or, maybe in the Emby Roku app but I have not found exactly what would fix the problem and I find switching devices is easier and less trouble than further diagnosis or experimentation.

For me this "bug" is not too troublesome but it would be better to not have to switch devices for playback of recorded content.

Even a recording that finished some time ago still glitches just a little on my Rokus. I do not see much of a pause in the video but every 10-20 seconds it sounds like my Roku has a mild but extended case of hiccups.

[mufjem 0]

Gilgamesh_48

This issue is dvd ripped to hard drive with makemkv.  It occurs to varyiing degrees depending on movie.  some it is clearly obvious and annoying and other it is barely noticable.  Have not noticed it on ripped blurays.  It occurs with multiple app(samsung,roku and firestick) occurs both on newer tv(qn55q70) and the older one(c6300 series) both samsung

can switch to wdtv but looking at plex, kodi or some other device for playing.  have all file on central computer that can be accessed thru multiple locations.  Oh also not particularly noticable on small screen such as phone or my laptop but not suprising large screen is mor chalenging

[Smashpen 1]

--- deleted --- wrong login

Edited April 24, 2023 by Smashpen

[visproduction 316]

I've done post production for film and TV and I do not use Emby encoder.  I use AVIDemux instead, because I like the detail control and my gear is not fast enough to handle conversion on the fly.  I also prefer to print photographs in a darkroom.  So, please keep that in mind.

30fps is perhaps the problem.  Older film media is 24fps which is used by most blu-ray content, TV and DVD in the US is usually 29.97 fps interlaced. TV and DVD in the UK is 25 fps. Some newer movies that can show up on Blu-ray HD can be 48 fps, or perhaps 60fps.  30 and 60 fps are often found in Game playback recordings.

Copies of TV or DVD video can be converted from 29.97 to 23.976 and look very nice with no jitters.  This conversion is rather complex and not always handled perfectly by automatic conversion encoders.

Finally, of course, there are all sorts of media online that has some problem already that was created when a copy was made with some format or frame rate errors.  You can more easily spot such errors by advancing frame by frame on a side to side movement scene.

There are reasons for all these formats, but I won't go into that here.  If your encoder grabs a 29.97 fps video and converts to .mkv with a setting of 30fps.  That already is either slightly wrong or the encoder is not telling you that it really is keeping the fps at 29.97.  Something made for TV can be at 29.97 interlaced.  Most any movie has been upconverted from 24 fps to 29.97 using what is called 3:2 pulldown, which adds a non-moving frame copy every 3 frames.  This is only with DVD format and older video tapes.

There are so many possible playback problems if your encoder doesn't do the exact preferred conversion.  When it is set to automatic, it will probably add some blur to the frames to hide any stuttering.  But if it is converted correctly, then the result is much better.  From 29.97 DVD to online or HD playback, it's preferred to remove any 3:2 pulldown first which drops the frame rate to 23.976 and then encode to whatever format you prefer.  Visible 3:2 is now rather rare on DVD's, mostly with older films, so encoders tend to ignore it and just do a general frame blurring. 

If you keep the original frame rate, you will probably get a cleaner conversion.

The best quality DVD can be encoded by checking for 3:2 pulldown, running a filter to remove the extra frame, then change the fps rate to 23.976... Add some low frame change blur, if needed

FYI: 29.97 / 5 * 4 = 23.976

Crop any black bars top, bottom, left and right

Resize and adjust the height to get the aspect ratio to the correct format which gets rid of the 0.9 pixel size used in DVD.

Do any color correction and contrast.  A lot of media is too yellow and too red to hide color errors.

Pick a encoding bit rate that is good for DVD sized encoding.  I tend to use from 1000 to at most 1400 Kbps if the quality settings are all the way up and motion scan pixel size is low and prediction pixel size is 32

Save in .mkv or .mp4 at the correct Aspect ratio that matches the original media.

Sorry for some much detail.  The point I suppose I making is that if you skip all this and rely on automated encoding process, it's a crap shoot.  If you dig into the details and create beautiful encoded media, then that's the kind of work that is done with a post production house.  They always require the client brings in master quality copy if possible, which is never what you see online, nor even on a blu-ray disc.

Hope that helps.

Edited April 25, 2023 by visproduction

[RanmaCanada 499]

@visproductionpretty much hit it on the head.  It's highly possible that your devices are forcing the playback to be whatever your tv's frame rate is, and your devices are not setup to do automatic refresh rate switching, where as the WDTV is.  It's not an emby problem per se, it's refresh rate problem and quite possibly also bad mastering on dvd's where 2:3 pulldown was either done improperly, or is not being respected.  This is typically a problem that is unique to dvd's and the "new fangled" HDTV's as most mfg don't give a flying F about SD content and all it's quirks.

[rbjtech 5284]

Nice explanation  @visproduction

I would suggest taking a known bad example - and then go back to the original source (if possible) and analyse what it 'should be' using MediaInfo.    It is probably better to leave the framerate 'as is' (rip it raw, no encoding) and see if your TV displays it ok.   If yes, then you can either leave it like that - or if you wish to encode to reduce filesize etc - then you need to go through the process (on an individual basis + testing) to ensure the settings you have chosen work well.  Interlaced recording will bring a whole new set of challenges - so things could get interesting haha. 

Sites like www.doom9.org have hundreds of thousands of posts about such things () so it's an entire industry as vis has said above .. 

[RanmaCanada 499]

18 hours ago, rbjtech said:

Nice explanation  @visproduction

I would suggest taking a known bad example - and then go back to the original source (if possible) and analyse what it 'should be' using MediaInfo.    It is probably better to leave the framerate 'as is' (rip it raw, no encoding) and see if your TV displays it ok.   If yes, then you can either leave it like that - or if you wish to encode to reduce filesize etc - then you need to go through the process (on an individual basis + testing) to ensure the settings you have chosen work well.  Interlaced recording will bring a whole new set of challenges - so things could get interesting haha. 

Sites like www.doom9.org have hundreds of thousands of posts about such things () so it's an entire industry as vis has said above .. 

Yes we have lots of tutorials and many experienced users over there.  I've been a member there since 2009 and a lurker since site inception.

[JoLas 26]

I had a huge problem with stuttering when panning all of a sudden. I went from rasberry Pi/Kodi (no stuttering) to Nvidia Shield,  Chromecast 4k and Firestick 4K clients. I thought it was something in the new clients or bandwidth issues so I bought ethernet adaptors, ran temporary ethernet cables through the apartment (GF loves that). Nothing fixed it.
It was not every movie but some were really bad. Even a slow pan over the bridge in Star Trek TNG stuttered every 2-3 seconds....

One day I was browsning through my Samsung QLED TV's picture settings and turned off I think it was "Motion Plus" something. Love and behold no more stuttering at all.
I have absolutely no idea why it was affecting some movies and even if the panning was really slow. And why didn't I experience this with my Raspberries...
I talked to my users and they found similar settings in their tv's that made the stuttering disappear. Looks like the Motion Settings is too aggressive by default.

Something to try out..

Edited April 26, 2023 by JoLarsson

[rbjtech 5284]

Yep - Good catch - watch for the 'intelligent' features on TV's that may actually make things worse.   If possible, try and have a 'Movie' profile on the TV and set to that when you are watching 'Film' (with all the features turned 'off' or on their lowest setting..)

 

Edited April 26, 2023 by rbjtech

[mufjem 0]

Jo Larsso

What settings are you using for youre tv.  seems all the smart setting cuase problems??

 

[JoLas 26]

Write everything down before you start, It's easy to change too many parameters from the get go.

Mine is set to "Clear"  but the results  may vary, some settings didn't matter while others did alone and in combinations.
My dads Samsung TV performed best with it on Personal and some values dropped. His was set to Soft by default and it was a huge difference.
Start with turning it off completely and then go through the presets one by one. On My samsung TV the Motion Plus presets are Off, Clear, Standard, Soft Personal.
My tv has different settings for different sources so watching on broadcast tv isn't affected. 

I spent probably 100 hours troubleshooting Emby, my server, my network, my media, ripping new media with updated software and drivers.
It was affecting both Directplay and transcoded.