• 16 Posts
Joined 1 年前
Cake day: 2023年6月11日


  • Are you transcoding?

    4mbit per client for 1080 is generally a workable minimum for the average casual watcher if you have H265 compatible clients (and a decent encoder, like a modern intel CPU for example), 6 - 8mbit per client if its H264 only.

    Remember that the bitrate to quality curve for live transcoding isn’t as good as a slow, non-real-time encode done the brute force way on a CPU. so if you have a few videos that look great at 4mbit, dont assume your own transcodes will look quite that nice, you’re using a GPU to get it done as quickly as possible, with acceptable quality, not as slowly and carefully as possible for the best compression.

  • You’re confusing a container format (MKV) with a video codec (AV1)

    MKV is just a container like a folder or zip file that contains the video stream (or streams, technically you can have multiple) which could be in H264, H265, AV1 etc etc, along with audio streams, subtitles and many other files that go along, like custom Fonts, Posters, etc etc.

    As for the codec itself, AV1 done properly is a very good codec but to be visually lossless it isn’t significantly better than a good H265 encode without doing painfully slow CPU encodes, rather than fast efficient GPU encodes. people that are compressing their entire libraries to AV1 are sacrificing a small amount of quality, and some people are more sensitive to its flaws than others. in my case I try to avoid re-encoding in general. AV1 is also less supported on TVs and Media players, so you run into issues with some devices not playing them at all, or having to use CPU decoding.

    So I still have my media in mostly untouched original formats, some of my old movie archives and things that aren’t critical like daily shows are H265 encoded for a bit of space saving without risking compatibility issues. Most of my important media and movies are not re-encoded at all, if I rip a bluray I store the video stream that was on the disk untouched.

  • One of my miniPCs is just a little N95 and it can easily transcode 4K HDR to 1080p (HDR or tonemapped SDR) to a couple of clients, and with excellent image quality. You could build a nice little server with a modern i3 and 16gigs of ram and it would smash through 4 or 5 high bitrate 4K HDR transcodes just fine.

    Is that one transcoding client local to you? or are you trying to stream over the web? if it’s local, put some of the budget to a new player for that screen perhaps?

  • I’ve had good luck with WD Blue NVME (SN550)

    I’ve put several of those into machines at work and have had years without an issue. I’m also running a WD Blue SN550 1TB in my server as one of the caches, 25000 hours power on time, >100TB written, temperatures way higher than they should be and still over 93% health remaining according to smart.

  • You should consider upgrading to some kind of mesh system then. sure they aren’t perfect, but even a basic 3 node kit could probably increase your throughput ten fold. If you want to use DDWRT or OpnSense or whatever you can still run it separately and route internet traffic or use it for your DHCP server.

    To stream a 4K bluray remux rips on your Lan you need a solid 150mbit minimum between server and player to be reliable for example. I am hardwired all the way except for mobiles, but even on Wi-Fi I can easily pull 400-500mbit real world throughput through most of the house thanks to my Wifi6 setup with multiple APs

  • The shield pro 2019 is probably still the best overall, it’s not perfect as there are some weaknesses due to the age of its chipset, but for all the common formats used in Movies and TV it works perfectly, especially if you are playing full remux files, not re-encoded compressed video. Kodi runs very well, Plex runs very well, Jellyfin is mostly perfect too, but has some limitations in the current version.

    Yes it supports HDR10 (not10+) and Dolby Vision, which covers 98% of all 4K blurays and TV shows, anything HDR10+ just gets played in HDR10 compatibility mode, if you TV doesn’t do DV it plays the HDR10 layer on 99% of files. There are some issues with HLG as it isnt properly supported but you don’t come across that format all that often and there is usually an SDR or regular HDR version available, if your TV supports manually activating HLG then it works fine.

    Yes there is a minor colour bug in some DV content, no it isn’t the end of the world as some people make it out to be.

    It is one of the only players that will give you full DTS:X and Dolby Atmos support, it has a very nice configurable upscaler for lower res content (AI upscale on low works excellently with minimal artifacts), it still has a lot going for it despite its age.

    Also its easy to decrapify with ADB, you can easily configure third party launchers and other fun stuff.