Subscription video on demand
Subscription-Video-on-Demand (SVOD, German: Subscribed Videos on Demand ) is a variant of Video-on-Demand in which the user can access videos via streaming with a monthly or annual subscription . Broadband internet access is required for video streaming . An internet tariff with unlimited data volume (data flat rate) is advantageous due to the high volume of data.
Well-known providers are Netflix , Amazon Video , Anime on Demand , Maxdome or Joyn Plus + .
Technical background
The video film is broadcast either over an internet connection, as with IPTV , or over a broadband network. The return channel, via which the customer's channel selection is transmitted to the broadcast center, is available with an Internet connection, but not with the broadband cable network. For this reason, with SVOD, a return channel is switched over the telephone network via the broadband network if required.
The following variants can also be distinguished:
Download / Progressive Download
Here the video must be downloaded before viewing. With progressive download it is possible to start viewing during the download if enough data has already been downloaded and a corresponding buffer has been created.
Streaming
Here the data is downloaded and played back at the same time. The provider needs a streaming server for this , and the user a corresponding client. A full copy of the file does not have to be saved in this case. Often the data is only temporarily stored in the volatile memory (working memory) of the program until it is displayed. Appropriate flow controls ensure that enough data is always available, but that not too much memory is used.
Individual evidence
- ↑ Archived copy ( Memento of March 27, 2014 in the Internet Archive )
- ↑ Archived copy ( Memento from June 3, 2013 in the Internet Archive )