IT based automated playout versus
Traditional playout automation with video servers
for broadcasting
and a review of extended workflows
Why would you select an IT based automated playout rather than Traditional playout automation with video servers?
Surely a Traditional solution is better “engineered”, and more reliable because it is based on Broadcast technology!
Isn’t this is better than relying on IT for broadcasting? We think not, and here is why.
What makes up Traditional playout automation:
• An IT based automation control software system
• Video Server(s)
• Separate graphics package
• Master Control Switcher/Mixer
• Other devices controlled by GPI/O
• Other devices controlled by RS232
• Other devices controlled by VDCP
• Other devices controlled by API or TCP/IP
Who supplies Traditional playout automation solutions:
• Around 25 companies – 60% of which are based in USA
What is the main hardware behind these solutions:
• Video Servers
o Omneon
o 360
o Seachange
o Grass Valley
o Harris
• Master Control Switchers/Mixers
o Harris
o Grass Valley
o Ross Video
o Evertz
o Snell
o Miranda
How does it all fit together:
• The computerised automation control system sends commands to multiple devices – electronic pulsed (GPI/O), slow speed COM (RS232), and API based.
• The separate devices outputs are mixed together by the Master Control Switcher/Mixer creating a finished output – the channel
• The Video Servers are IT based – effectively single function computers
• The Switcher/Mixers are IT based
• The graphics packages are IT based
What makes up IT based automated playout:
• An IT based automation control software system
• An IT based Video Server using a computer and a broadcast input output video card
• An integrated graphics package
• A software based mixer
• Software based secondary event management
• A broadcast router controlled by the automation control software
• Other devices controlled by GPI/O, RS232 and API
Who supplies IT based automated playout:
• Around 20 companies – 70% of which are based in Europe
What is the main hardware behind these solutions:
• IT servers with audio video cards like those used in post production
• IT workstations
• Broadcast Routers (supplied by – amongst others)
o Grass Valley
o Harris
o Ross Video
o Evertz
o Snell
o Miranda
How does it all fit together:
• The computerised automation control system sends commands to a single IT based server
• The server handles primary and secondary events and mixes them together in software, with live feeds input by control of the broadcast router
• The graphics packages are integrated
So the primary differences between the two approaches are:
• A single device and software control or multiple devices and software control over different device driver protocols
• A multi function video server or a single function video server
• A broadcast router or a broadcast switcher (made by the same companies)
• Hardware like other parts of the extended workflow or playout specific hardware
So the similarities between the two approaches are:
• IT based automation control
• Hardware with an IT core
• IT based mixing process
So what are the advantages of each solution:
• Traditional
o Specifically engineered single function hardware
o Able to select from Mix of vendors
o Broadcast engineers understand it
• IT based
o Single point of responsibility for support
o Simple redundancy management
o Feature changes in software not hardware
o Less physical space
o Less power consumption
o Higher return on investment
o Future proof
o More open standards compliant
How do you do other things in the extended workflow of either solution:
• Ingest
o Performed on Video Server or IT Server
• Editing
o Has been running on standard IT hardware for years
• Asset management
o IT based
• Storage
o IT based
• Re-purposing
o IT based, for IT devices
• Compliance recording
o IT based
So our conclusion is:
• The lower risk option is IT based automated playout
What can you do with a multi award winning IT based broadcast workflow and automated playout solution from OASYS
• Ingest in multiple file formats with low resolution proxy files and metadata creation
• Cuts edit ingested media
• Quality control ingested media
• Quality control transferred media
• Move media to and from storage
• Import, create and manage schedules
• Move media to playout
• Control all primary and secondary event playout
• Log and report
• NRCS, proxy editing and asset management in conjunction with development partners
• A reliable, scaleable, frame accurate solution that can be integrated with many broadcast workflow products
More specifically what are some key features:
• Multiple file format support in the same playlist
MXF, MOV, MPG, AVI, WMV files all supported in SD and HD
• Scaling
On an HD system you can have SD and HD content in the same playlist, and it will auto up-scale the SD content
The HD system can then auto down-scale and output simultaneously in SD
Maintains correct aspect ratio or applies conversion
• Picture in Picture transitions and displays
Add multiple secondary live and file sources
Transition in and out, as well as cut
• Event Transitions
Transition between items using cut, dissolve or wipe effects – without the need of a vision mixer
• Playlist changes up to the last 3 seconds
Drag and drop, cut/copy and paste, insert, delete, and append
• Playlist changes after loading
Edit event timing, and secondary events at any time, including editing the event currently playing
Video and audio can be previewed and have trim in and out points set
All events can be saved with all trim points for later re-use
• Redundancy management
A synchronised backup is a single piece of equipment, so no complex redundancy management is required
• Aspect Ratio Conversion
Automatically control the aspect ratio of the output without the need of an ARC
• Control Live, VTR and Streaming Inputs
Playlist can contain file based, but also LIVE based elements, where you can control your live sources directly from the same software
• Fully keyed, multi layered graphics overlays
A full set of 2D graphics template editors allows for channel branding, and all graphics can be ordered in layers
3D animations created automatically from TGA sequences or uncompressed AVI
Playlist and metadata based graphics provide for full channel branding and now/next features
• Integrated Sub-Titles
Play EBU or Cavena sub-title files directly in your playlist, avoiding re-purposing and sub-title equipment
• Record during playout
Record items as they play for later re-use, either as clean feed or with graphics
• Hotkeys
Flexible control of overlays and emergency events using Hotkeys, which can be triggered simply in the GUI over an IP connection
• Audio ducking and mixing
Add voice overs and change audio levels
Multi track mixing
Multi audio outputs including Dolby E
• Automatic Filling, playlist loading and deletion
Automatically fill gaps in the playlist
Automatically or manually load playlists
Automatically delete used playlists and unwanted media
• Grouping, repeating and looping
Playlist items can be grouped and sub-grouped
Any event or group can be looped and individual events can be set to repeat any number of times you wish
• Search and replace
A full search and replace facility to make simple multiple changes to a playlist
• Integrated reporting
A single system to report on all playlist errors
A single system to report on all AS-RUN logging
• Advertising Insertion
Fully control downstream advertising insertion with VBI based playlist timing
• Commercial counters
Mark events for commercial content
At a glance commercial rules compliance
• Media Library
Centralised store of all media content
Real file naming based, so no database conversions
Multi-channel filtering
• Trigger other equipment
Using VBI, VITC, WSS, HTTP, UDP, GPI