(anime) 1080p Movies dropping lots of frames. fine on Plex

Hello, I’ve had my Vero 4K+ since it launched, and it is one of the best purchases I’ve ever made. It plays everything to now, but I’ve recently downloaded a couple of anime movies, and both seem to drop frames, and play extremely inconsistently.

What file/log info would be required here so I can provide it?


I bet they are x264 10 bit encodes ?

Mediainfo would be nice

Looks like you’re right.

ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High 10@L4.2
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, RefFrames : 4 frames
Duration : 1 h 19 min
Bit rate : 22.5 Mb/s
Width : 1 440 pixels
Height : 1 080 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.603
Stream size : 12.4 GiB (96%)
Title : JP.Blu-ray 10-bit 1080p
Writing library : x264 core 157 r2935 545de2f
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / 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=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=14.0 / qcomp=0.60 / qpmin=0 / qpmax=81 / qpstep=4 / vbv_maxrate=150000 / vbv_bufsize=187500 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Language : Japanese
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Try getting the same content encoded in x264 8 bit or HEVC even some intel cpus struggle to playback x264 10 bit because it’s so resource heavy

When you say plex plays it fine do you mean on the vero or on pc ?

Could be that plex Auto transcodes it

Thanks. Can I re-encode these myself?

I use handbrake for my recoding purposes as serves my purpose for doing the job.

You can use handbreak but make sure you use a good present and don’t play around with the settings yourself too much because that can break playback as well.

Also keep in mind that re-encoding is a very hardware demanding process that could make your pc unusable for other things for at least a few hours

thanks @k2u3 and @Metal_Masher!

Unfortunately Hi10 content can’t be played back smoothly on the Vero 4K / 4K +
It is however a fairly niche format, which lends itself as to why there haven’t been many commercial efforts to develop a decoder for it.


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Now this is slightly off-topic but could anybody please explain the difference between Hi10 and HDR? I don’t get it. Would saying in a way Hi10 is HDR for non-HDR displays be correct?

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Hi10 means H264 with 10-bit encoding, as opposed to 8-bits which is standard

Bit depth, chroma and HDR are all different.

HDR is a way of passing metadata in the form of an EOTF to give the display more information about how to process those images.



Thanks for the explanation, Sam! :slight_smile: