There's a Plex app for PS4, does the same thing as DLNA (the app doesn't support music yet). The PS4 app isn't free but you can try it in the PS4 browser for free.
Install the server on your PC, point it at your video folder. It downloads cover art and info based on the file names, and then you can watch them on the PS4.
Unfortunately I have a PC that draws 120 watts and I don't want to leave it on all the time. I purchased a 3TB Network drive and DLNA server that pulls less than 500MW in standby and 5 watts when on. It does not support metadata as it's a Twonky server version 6.
Plex, when I looked into it looked like what's coming from Sony and Microsoft (extended metadata) and another reason to have MKV support.
Inside a MKV container you can put a blu-ray movie disk complete with menus and chapters and store it on your hard disk. Sony can serve a blu-ray disk from the PS4 but it's more convenient to have a hard disk copy on a network drive and that can also be DRM protected and might be coming.
From a
world wide marketing perspective the PS4 and XB1, to
dominate the living room world wide, will have a feature set that we can speculate on.
Easiest to hardest: Entertainment, Educational, Information, Communication and IoT Hub/controller for the Home
UI (UX) able to support international text styles and fonts
AAA games to casual (requires Sony partner with others and expand their games offering)
Educational programs and media (requires Sony partner with others in other countries and expand their TV and Movie studios)
DLNA CVP2 Media Hub with support for OTT and Over the Air TV (using Nanse or DLNA Network Tuner)
Stable and Fast HTML5 browser with W3C extensions able to support world standards for codecs, compression, containers (including MKV)
S3D, WebGL, WebVR,
VOIP and Video Chat with world wide standard (ooVoo)
IoT with a AOAC power mode
APP support with a basic set free and able to share data with other apps; Calendar, Contact list (already partially there with Friends list); activity log (already partially there with, what's new and Notifications), notebook.....
You can check and confirm the above over the next year or so.
Official Confirmation in the Playstation blog: PS4 Update 2.50 “Yukimura” Preview: Suspend/Resume and More
Facebook Friend Search: Gamers globally have jumped into PS4 as a redefined social gaming experience and connecting with friends over the network is a huge part of what makes the PS4 community so special. PlayStation now lets you go even bigger by connecting with your Facebook friends on PS4 using your linked account. Search for Facebook friends who are PlayStation Network members and build on the foundation of Friends you already have in your list.
This means a new Friends/Contacts is coming shared with ooVoo...Facebook and more.
Accessibility Options: “Yukimura” introduces a wide variety of options to make their PS4 entertainment experience even more accessible. Options include text to speech, enlarged text, bolder fonts, higher contrast UI, zoom for displayed pictures, invert colors on screen and more. Users will also be able to reassign buttons for DualShock 4, making it easier for users with limited manual dexterity or limited reach and strength to play.
more at the link and in comments for DLNA:
Q: Forward thinking console? Can we have online friend alerts and DNLA?! Something your last console had th should’ve been present at launch!
A: + Scott McCarthy on March 11th, 2015 at 5:28 pm said:
We want PS4 versions of these features, not a cut/ paste from last gen. Stay tuned.
= DLNA 2 with metadata support, Three box model and more like Plex Client and metadata compatibility ?
Q: Can we get an update to play videos from our external hard drives like the ps3 already does? Or the ability to stream from our wd external cloud devices?
A: + Scott McCarthy on March 11th, 2015 at 5:43 pm said:
We want PS4 versions of these features, not a cut/ paste from last gen.
Embedded Playready in a TEE SoC (Southbridge) allows many DRM protection models not available on last generation. The TEE level security also allows secure on-line transactions to industry specs.