STB software for the closed platform is produced at the manufacturing plant by individual agreement with every concerned operator. STBs that used on the particular network must support this type of CAS/DRM, be registered in the operator's CAS/DRM system, and should contain in firmware relevant operator's CAS/DRM system settings. A particular CAS/DRM system to be used in the IPTV project is selected by the IPTV operator. There are various types of content protection systems that differ in hardware/software implementations, levels of content protection, types of content being processed, and so on. In addition, the content protection system restricts various actions with copyrighted audio-video content (copying, modification, repeated playback, distribution, etc.). To secure media content, encryption of transmitting audio-video streams is used that allows media content to be played back only on registered models of media players (STBs) of the particular IPTV operator.
The CAS/DRM system is a hardware-software complex integrated into the particular operator's IPTV network as well as into subscriber receivers (STBs) dedicated to operating in this network. In turn, сlosed platform is intended for operator solutions that use CAS/ DRM system providing content protection. The idea of the open platform is to provide users (both individual users and IPTV/OTT operators) with the opportunity to make changes (perform customizations on their own) of STB software and integrate it with applications of other developers. Distinctions between open and closed STB platforms The сontents of this electronic documentation mostly refer to STB models of the open platform (except when specifically indicated that closed platform is described).
Produced STB models are l isted in Basic models of STB Linux & WebKit section, considering the division into open and closed platforms. STBs of MAG family can be produced on the basis of open or closed hardware-software platforms, depending on the focus of its application. Open and closed platforms of STB STB models with open and closed platforms There are several kinds of imageupdate to produce by the manufacturer and operators. This enables IPTV operators to configure STBs according to their own work environments and preferences, as well as, to integrate STB software with other developers' applications. This process is called STB software customization. STB manufacturer permits customers (IPTV operators and individual users) to make changes to certain components of STB software and independently create the STB software image according to instructions of the manufacturer. This file-image that named as imageupdate is used for the STB software update. As a result of the building procedure, the system image file ( hereinafter - image) is created which is applied for loading and running in STB. The procedure of combining STB software components (STB software building) is performed at the STB manufacturing plant. STB software includes Linux kernel and Root File System (Root FS) that contains software components provided by manufacturers of CPU and STB. STB software is a set of programs that are intended to control STB operation.
0 kommentar(er)
