User`s guide

Software Overview
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Clip Cache
Digital media data that the SGI Media Server processes for playout and recording is
stored in one or more clip caches. Each audio/video segment that is stored in a clip cache
is called a clip.
Clips can be added to the cache by doing the following:
• Using the SGI Media Server to record the clip
• Generating the clips elsewhere and adding them to the cache by data transfer
Core Software
The VST core software provides the basic functionality for playback and recording of
media. It uses the IRIX operating system as well as portions of the SGI Digital Media
Libraries.
The core software provides the following basic functionality:
• Clip cache management
Maintains persistent information about the media that is either stored in the clip
cache or is in the process of being transferred into or out of it.
• Controller management
Links one or more external control protocol modules (for example, VDCP) to the
internal processing logic.
• Configuration management
Automatically configures the VST software according to the hardware capabilities
of the system on which it runs.
VST provides a core library that supports external interface modules that contain the
code specific to a given external entity. When the SGI Media Server is started, the VST
software loads and initializes all external interface modules it locates so that the modules
can be used.
Control Interface Module
Control interface modules allow various automation controllers and digital media
applications to control the use of the SGI Media Server. These modules translate to and
from external control protocols.