Grass Valley NewsBrowse Desktop Browsing System Installation v.2.0 - Manual (Page 129)

25 May 2004 NewsBrowse Installation and Configuration Guide 129
Appendix
A
Component Interaction Diagrams
This section provides diagrams and explanations of how the NewsBrowse system
software components interact.
Ingest
Synchronized PC clocks (via NetTime) Synchronized PC clocks (via NetTime)
Web
application
(IIS)
Ingest
Scheduler
Metadata
Database
Schedule
Database
Proxy
Storage
Metadata
Service
Router
Gateway*
*on server or
separate platform
<<100BT>>
<<100BT>>
<<ser
ial>>
<<ser
ial or
100BT>>
Ingest
Control
Router
Controller
Video
Server
Video
Server
VTR
Server
1-Channel Encoder
Storage
(NAS)
POWERFAULT DATA A
AV
TC
2.1.1: take
2.2:
ing
est
2.4:
get status
2.5:
create
entr
y
1:ad
d e
v
ent
1.1.2:
create
metadata
recor
d
1.1.1:
store
ev
en
t
1.1:ad
d
event
2.1:
take
2:
g
et e
vent(s)
to pr
oces
s
sa
ve
2.2.1b:
reco
rd
mpeg
*
*
*
*
* 2.2.1a: record
high-res
2.2.2: stop
Resolver
1. Add Event. The user enters event
information via the web application user
interface. The UI passes the event
information to the Ingest Scheduler process
which stores the event data and creates a
metadata entry using the Metadata Services.
Synchronized PC clocks are critical for
scheduling and processing events.
2. Process Event. The Ingest Scheduler process finds events ready to be
processed and sends the event info to the encoder (and to the Router Gateway
if it’s configured in the system) in advance of the actual start time. The router
takes immediately while the encoder waits to execute based on the house time.
The Ingest Control reads the timecode feed to determine when to execute the
record event on the Video Server. The Ingest Control service controls a single
Profile (either via serial control or ethernet API) or can optionally control two
Profile servers (both via API only) and a backup VTR (serially). The Ingest
Control creates mpeg video and writes it to the configured storage location.
The Ingest Scheduler creates associations of the mpeg and high-res assets
with the previously entered metadata.
Not shown on this diagram is the interaction whereby the Ingest Control
notifies the Proxy MDI that the mpeg has been created. See the Scavenge
diagram for this interaction.
NewsBrowse
Client