UMP (Unified Media Platform)

5.2 Playing Videos over the Network

 

Playing Videos over the Network is no different to playing locally stored videos, except for a few logical restrictions. If a share is mounted read only, or the user specified for the connection has no right access to the target volume, re-encoding jobs will not be possible, as the re-encode process attempts to create the output file in the same directory as the source. Due to this limitation, thumbnails cannot be generated and online information cannot be downloaded when the abovementioned restrictions apply.

If a share is mounted with read and write access, the UMP will treat is as a normal disk, with the exception of the caching of files. The UMP Media Cache does NOT index Network shares or removable media. Directory settings can be stored on read only shares, as they are stored locally on the device. This causes a slightly less organized Media Cache at times, but avoids the problem of having to set up your network paths every time they are accessed for instance.

 

Obviously, the device’s capability to play videos over the network depends on the bandwidth available. The following overview will give you a rough indication of what is needed to play some common video formats:

 

Audio Stream

 

Flash Video

32 – 64 kbit/s

XviD/DivX Video

64 – 192 kbit/s

DVD MPEG2

192 – 256 kbit/s

 

Video Stream

 

Flash Video

~300 - 1000 kbit/s

XviD/DivX Video

~1500 - 2500 kbit/s

DVD MPEG2

~10.000 – 12.500 kbit/s

 

 

Note that in common network environments using Ethernet, one can typically calculate the amount of kilobytes per second as a 10-fold multiplication of the amount of kilobits, although officially this would be a factor of 8.