Grass Valley iTX System v.2.6 - Manual (Page 241)

Working with the Media Watcher
Registering of recordings
The Encode Server running on an Encode Server machine manages the recording of SDI video
into the iTX system. In recording the media, the service creates a media file directly in the
Media folder and places an XML registration file, containing the recording details, in the Inbox.
After copying the information from the registration file to the System Database, the Media
Watcher deletes this file.
Registering of media on an external Media Store
An external Media Store is an additional storage device containing media files that have not
passed through the Inbox (and so are not on an iTX Media Store).
To allow iTX to use these files, you may register them by placing an XML registration file,
containing the details of all the media files on the external device, in the Inbox. The file must be
in the clip-list format defined by the iTX Import Protocol. (The protocol defines formats for
schedules and clip lists.) Clip-list files in this format have the filename extension ".ocl"; the
filename may contain up to 32 characters.
The Media Watcher copies the information from the registration file to the System Database,
and then deletes this file.
When a file on an external Media Store is required for playout, iTX may copy it to a Media Store
in the main iTX system; or it may use the file direct from the external Media Store. The
operating mode depends on how you configure the Media Watcher to work with the external
Media Store. More details , page 86.
For more information about the iTX Import Protocol, contact iTX Support.
Copying of media files for playout
To produce the best playout performance, an Output Server machine holds a cache of media
files that are due to play out in a schedule. The Media Cache Service, on this machine,
maintains the cache by deleting files that are not needed and using the Output Server to add
ones that are.
Where a required file is in a Media Watcher search folder, the Media Cache Service can use the
Media Watcher to copy the file either to an iTX Media Store or the Output Server cache. You
configure search folders under the Setup tab of the Media Watcher service window. More
details , page 86.
March 2015 System Administrator Guide Page 241 of 404