Grass Valley iTX System v.2.6 - Manual (Page 268)

Working with iTX services on an Encode Server machine
Working with iTX services on an Encode Server
machine
The Encode Server machine runs the following interacting iTX services under the control of a
Server Controller.
• The Encode Server responds to requests to record an SDI video feed; it controls the
iTX Encoder, which performs the recordings.
A request may come from an operator using features on an iTX Desktop layout; or from
another iTX service, the Ingest Control Service, which manages scheduled recordings.
•
The iTX Encoder converts an SDI video feed into a file in a specified standard storage
format (MPEG-2 or MOV).
• The iTX Software Updater. More details , page 297.
Depending on the SDI video card installed in the Encode Server machine, the Encode Server can
record SD or HD video content with embedded audio content. (An Encode Server that can
record HD video content can also record SD content.)
Creating media files
In a recording session, the iTX Encoder creates a media file on the configured Media Store and
streams encoded data across the network until the recording is complete.
The copying process allows an operator to have access to the file while the recording is going
on; the operator can view the file on the Media Store and use it in a playout schedule.
If network problems prevent the successful copying of the file to the Media Store, the local file
is not deleted. This can be ingested into iTX in the normal way, through the Media Store Inbox.
Registering media files
For each recording, the Encode Server places an XML registration file, containing recording
details, in the Inbox monitored by the Media Watcher. The Media Watcher copies the
information from this file to the System Database and then deletes the file.
Recording of VANC data
The iTX Encoder can automatically detect VANC information in the digital video source and
record it: up to 8 lines for 1080i; up to 20 lines for 720p.
Video-format detection
When a recording is prepared, the iTX Encoder can automatically detect the video format of the
digital video source. This reduces the chance of errors from changing sources without changing
the setting for the video format.
March 2015 System Administrator Guide Page 268 of 404