UPnP/DNLA
From Richard's Wiki
(Redirected from UPnP)
From http://www.obsessable.com/feature/home-media-streaming-101-dlna-explained/ :
- DLNA is not an easy to understand fully, since each device marked as "DLNA-compliant" can support one or more of the 4 available "DLNA-classes", which are:
- DMP (Digital media Player). Example: PS3 console. The PS3 can connect directly to a media server (DMS) and lay the selected media file (example: MP3 file or a video file) just on "itself" (actually: to the TV device to whch the PS3 is connected via video cable). This is the so-called "2-box pull model".
- DMR (Digital Media Renderer). The difference with DMP is that a DMR can be "controlled" by a DMC, while a simple DMP device can not. Hence, DMR can play media files which are sent to him by a DMC (Controller). In the case of PS3 console, this is not possible, hence the PS3 is not a DMR. This is the so-called "2-box push model". Please note that DMR is not necessary a physical device. It can be just a service included inside a device like photocamera or videocamera.
- DMC (Controller). The concept is like a remote controller of your TV. With a device which is DMC compliant, you can send a media files stored on a DMS (server, see below) to a DMR-class compliant device. Example: if you have an IPhone, you can use the app called "Plug Player" which acts as a DMC.
- DMS. Finally, this is the DLNA-Server. It's the physical device where your media files are stored inside. You can access to it by using a simple DMP like PS3 console ("2-box pull model") or you can access to it by using a DMC, and then play the selected media files into a DMR-compliant device. For example, if a NAS device is DLNA certified, by using a DMR device like IPhone's Plug Player you cand "push" the content to your TV (provided that your TV is a DMR, off course).
