Pixelation on LG OLED?

[bagmand]

Hi,
I just bought a LG G2 55" OLED TV.
When playing my ripped movies, "MKV" it has small pixelation on them.
I havn't had this problem with any other tv.
It's doing it on Plex, but also when playing from usb-stick.
All content from apps like Netflix, Disney+, plays perfect.
And my MKV's play perfect on my pc, old tv's, apple tv, and so on.
It's really weird.
I rip with MakeMkv, convert with Handbrake, "x264 720p mkv ac3"
I have a picture of the problem.
Hope you guys can help.

[Attachment 81314 - Click to enlarge]
Regards, Andreas.

[davexnet]

Looks like a decoding error. Post a mediainfo (text view) report of the video

[bagmand]

Here it goes:

General
Unique ID :
Complete name :
Format : Matroska
Format version : Version 4
File size : 3.34 GiB
Duration : 1 h 30 min
Overall bit rate : 5 260 kb/s
Movie name :
Writing application : Lavf58.20.100
Writing library : Lavf58.20.100
ErrorDetectionType : Per level 1

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L4
Format settings : CABAC / 8 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 8 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1 h 30 min
Bit rate : 5 000 kb/s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Original frame rate : 24.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.226
Stream size : 3.11 GiB (93%)
Writing library : x264 core 142 r2479 dd79a61
Encoding settings : cabac=1 / ref=8 / deblock=1:0:0 / analyse=0x1:0x131 / me=umh / subme=9 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=60 / rc=2pass / mbtree=1 / bitrate=5000 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=20000 / vbv_bufsize=25000 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Commercial name : Dolby Digital
Codec ID : A_AC3
Duration : 1 h 30 min
Bit rate mode : Constant
Bit rate : 256 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 32 bits
Compression mode : Lossy
Stream size : 166 MiB (5%)
Title : Stereo
Writing library : Lavc58.35.100 ac3
Language : English
Service kind : Complete Main
Default : Yes
Forced : No
Dialog Normalization : -31 dB
dialnorm_Average : -31 dB
dialnorm_Minimum : -31 dB
dialnorm_Maximum : -31 dB

Menu
00:00:00.000 : Kapitel 01
00:03:29.584 : Kapitel 02
00:07:36.459 : Kapitel 03
00:10:30.084 : Kapitel 04
00:13:40.584 : Kapitel 05
00:20:30.000 : Kapitel 06
00:26:03.209 : Kapitel 07
00:38:31.375 : Kapitel 08
00:42:14.125 : Kapitel 09
00:47:48.250 : Kapitel 10
00:54:31.084 : Kapitel 11
00:57:58.584 : Kapitel 12
01:09:59.834 : Kapitel 13
01:14:12.625 : Kapitel 14
01:20:07.209 : Kapitel 15
01:27:35.875 : Kapitel 16

[aedipuss]

to me it looks like there may be too many reference frames, and get rid of the variable frame rate, some equipment can't handle it.

[bagmand]

Okay, so constant framerate and less referance frames. I'll try that. Thanks.
It just sucks having to re-rip and convert my entire collection

[davexnet]

Yes, limit preset to medium or slow.

[bagmand]

Okay, I always use "slower"

[jagabo]

You can probably use "slower" but you'll have to override the number of reference frames (using the extra options box).

[Cornucopia]

Are you playing them on the TV's embedded media player? As mentioned, there is a good chance it isn't capable enough to accommodate your previously ok encoding settings.

How do those same clips play when played on a PC sending hdmi to the tv?


Scott

[Alwyn]

Perhaps encode at 1920x1080?

[pandy]

Don't understand why people wish to use HW decoders but not using BD compatibility flag.

HW decoders are usually limited to BD spec so it should be activated, also HW decoders usually support HP@L4.1 so it may be beneficial for quality to allow encoder to use higher max bitrate (unless this is old HW decoder).

[bagmand]

I havn't tried pc to tv via hdmi.

So, what is your prefered complete settings in Handbrake, to do a perfect playable file?
I prefer 720p, do to my harddrive space.

[davexnet]

I havn't tried pc to tv via hdmi.

So, what is your prefered complete settings in Handbrake, to do a perfect playable file?
I prefer 720p, do to my harddrive space.

It's already been described. Limit preset to "slow" or override the reference frames in the command box.
Just encode a few short clips until you find what works.

[bagmand]

Tanks, will try

[jagabo]

Handbrake x264 Extra Options for blu-ray compatibility:

https://forum.videohelp.com/threads/378246-Handbrake-Video-Extra-Options#post2442740

bluray-compat=1:no-fast-pskip=1:no-dct-decimate=1:vbv-bufsize=30000:vbv-maxrate=40000:slices=4:ref=4:keyint=24:no-deblock=1:no-mbtree=1

[bagmand]

How do I get fx "5 reference frames"?

[bagmand]

Sorry, I get it now

[bagmand]

It plays perfect, with 5 reference frames "slow".
Thanks, guys