Jerky image on Server Browser but not on any other client

[jackthedoc 12]

I have recently noticed that some of the videos (all are mkv format; in fact all my videos are mkv) that I attempt to watch using my Firefox 92 browser on the windows 10 pro computer that runs my server, I get a jerky image. Note: only some videos.  If I then view the same video on my client devices (a mixture of iOS, iPadOS, windows theater, chrome with Google TV) the video quality is excellent.  I should also note that if I use VLC as a native windows app, on the same server computer, the video is also perfect.

So it seems that only the Emby client on the server machine shows this image distortion.  As I rarely use the Emby Client on the server to watch videos anyway this is really a "non problem" but I wonder if there is something wrong in my settings somewhere.

Any advice would be greatly appreciated.

Thanks

John Norris

[GrimReaper 4749]

That is likely not as much related to those files being mkvs but to encoding - AVC mkvs would require remuxing only (container swap) which requires relatively little processing power whereas HEVC-encoded mkvs will require transcoding, which might be too taxing for your server (moreso if no HW accelleration). However, without exact example, it's all guesswork only. 

If you could provide Media Info section for item that plays smoothly and one that does not, we might get some more insight there. 

[jackthedoc 12]

Wow.  Thanks for such a rapid response

Can you give me a 1, 2, 3 as to how I access that data and I will do it immediately.

Again, thanks for your help

JN

Australia

[GrimReaper 4749]

In your web browser, go to any item detail page and scroll all the way down, Media Info section is last section there, make screenshot of that for both items, one that plays ok and one that does not. 

[Happy2Play 9783]

Also everything mentioned here, Media Playback Issues

[jackthedoc 12]

I have attached 2 screenshots as requested. Both are episodes from "Inside No 9" series 6,  Episode 4 skips and episode 1 plays smoothly

I await your instructions

Thanks

John Norris

[Carlo 4561]

Those are AVC video files so shouldn't need transcoding because of the codec.

Please play back something and then post the server log as well as the ffmpeg log file if it transcodes or remuxs.

[jackthedoc 12]

OK, I just played episode 1 (no jerking) followed by episode 4 (lots of jerking) and I hope I have provided the correct log file for your perusal.

Thanks in advance for your help

JNembyserver.txtffmpeg-directstream-5015fed8-aeee-42ef-b497-580c029ed99d_1.txtffmpeg-transcode-9cde4b95-737c-4f5d-af26-8658d4135a3b_1.txt

[jackthedoc 12]

I found 3 log entries under today's date, so I sent them all

JN

[Happy2Play 9783]

Devs will have to comment more

 

But will guess do to one being interlaced and the other is not.

"DisplayTitle":"1080i H264" "IsInterlaced":true (Transcoded)

"DisplayTitle":"1080p H264" "IsInterlaced":false (Direct Stream) playback problem.

So the question is is the problem episode actual reporting correctly?  But the image above shows the same thing interlaced true vs false.

Edited September 30, 2021 by Happy2Play

[jackthedoc 12]

Just to reinforce what I said at the beginning. None of these issues occur on any of my clients, regardless of operating system employed or the video type being displayed

[GrimReaper 4749]

3 minutes ago, jackthedoc said:

Just to reinforce what I said at the beginning. None of these issues occur on any of my clients, regardless of operating system employed or the video type being displayed

You can try installing Theater Desktop on server machine and enable Deinterlacing in Video settings, see how does that compare. 

[jackthedoc 12]

Well, that worked a treat.  I installed Emby Theatre for windows and it plays all files without issue. I didn't even touch the settings menu, it worked straight out of the box.

Again, as I said earlier there was no problem with any file when played through VLC media player - but using these standalone apps defeats the purpose of having an integrated server system.  And although I rarely use the browser on the server to view movies or TV series, knowing that I now can by using the windows client is very comforting.

Thanks for that tip. 

So the jerkiness when playing from within my browser is not carried over to the stand-alone app.  I guess I'll never understand why the server does this, but hey, who cares, if all now functions as it should.

Can I disable the "load on start" feature or is that an instruction to start the server on launching windows? Again, no big issue as I normally open a browser when I start a windows session anyway.

Thanks again for your assistance

[GrimReaper 4749]

Glad you sorted it out. 

1 minute ago, jackthedoc said:

Can I disable the "load on start" feature or is that an instruction to start the server on launching windows?

That applies to server. 

[jackthedoc 12]

With respect, YOU sorted it out. All I had to do was follow your excellent instructions.

Best

JN