4K MKV video pixelated and stuttering.

by MrAnte06

Hi again!

I have noticed that when I watch some 2160p MKV movies directly from my 2TB external HDD on my tv, it gets pixelated at some moments in the movie. It is often at the scenes in the movie where the screen moves faster. Is there any problem with the bitrate or something. Or is it that my tv's built in computer can't handle these kind of files every time?

Because I also want to say that I have been playing much heavier 4K MKV files before. One example is that I one time played a 60 GB BDRemux H.265 file that had HDR and it was 2160p (4K) like I said!

So why did that movie work flawlessly?

The last 4K movie I played was yesterday, that movie was around 10 GB and it was also not a BluRay, it was a WEB-DL 2160p SDR with H.265, and this movie got pixelated every like 2-3 minutes I think.

So why does some 2160p WEB-DL movies that aren't that heavy stutter and get pixelated sometimes, because it isn't everytime, but it has happened now several times (but NOT everytime). Cause even some 1080p BluRay files have started to suddenly not work and pixelates, but that doesn't like really happen ever, it has only happened 2-3 times I think. But I still wonder why!

I also want to note that I have played several WEBRip/ WEB-DL 2160p movies (some in SDR and some in HDR). When I played them there was no pixelation or stuttering. To these movies I have been using the same media player (Nova Video Player).

The thing is that when I have tried other media players to try if the movie gets pixelated, then it don't show any difference, it gets pixelated and stutters just as much as before. So is it the TV's built in computers fault or is it something else?

So why does some 4K movies work and some don't? Because sometimes when I restart my TV, the movies suddenly works again without pixelation!?

The TV I am playing these files directly on is: Hitachi 50HAL7351.

So please someone, what is the main problem??

Prime_Molester

my low end bravia shows signs of struggling only during rapidly changing complex scenes on a high fidelity source. I m guessing it's due to processor limitation or data transfer speed( are your HDD and TV usb compliant?). Have you tried streaming same file through a streaming app on TV?

Fipilele

Different codecs will be in play

May need to find a "more lossless"? file type, eg x264 rather than x265. Or rather whoever mixed the settings so to speak...

Obviously the file will be bigger but perhaps that may work as there will be less to process (maybe)

Yahiroz

File size doesn't really matter, what matters more is the bitrate as well as the compression level the encoder used. Assuming the files play fine on another device it could be the TV not keeping up with the decoding so the player is taking shortcuts.

Try another video player app to see if it makes a difference (eg VLC, MPV, MX, etc).

Sarah_Ng

give mpv player a try. its quite light weight on android

Potential_Local_5416

I was having the same issue with H265 encoded video. I know its not 4K video but some 4K videos use this codec. I tried mpv player. No good it didn't fix the issue. But on the app store of my tv VLC player was next to it. So I tried that and it plays the H265 videos flawlessly. So give that a try.

I remember when I first used VLC player. It was many many years ago. In the early 2000s so that jogged my memory. I love rediscovering knowledge in my head! It helps people and I love helping people!

[deleted]

Try paying for your content and maybe you'll have better luck.