April 2014
www.tvbeurope.com
TVBEurope 25 The Workflow
specifications. “The core was the Interplay MAM system from Avid, but with the specific needs from Polsat, it became a dedicated almost proprietary solution, created by engineers from Avid, our own people and Adtv”, explains Brodziak. Andrzej Szymanski, head of
Polsat’s IT TV department, adds: “The existing Interplay PAM systems needed to be upgraded to the latest software version to make it interoperable with the new MAM solution being implemented with the current project. This was covered by the existing service level agreement with the manufacturer and therefore not a big problem.”
Broadcasting and television production TV Polsat has been doing HD production and playout since 2007. In its progress toward HD, the studios for sports and show production together with all infrastructures have been migrated and refurbished concurrently. This was finalised in December 2012. To support this, the construction of the production system was conducted in stages, so that in turns all of the introduced and generated functionalities have been made available to users. The aim of the project was to build a tapeless playout and production system based on a digital archive.
New MAM system Polsat’s production systems incorporate central disk storage, station-wide media asset management and a deep archive. This required the integration of the central storage with the playout system, the Provys scheduling and the Aveco Astra automation systems to implement a new workflow for the playout. The playout platform is based
on GVG K2 video servers, managed by the Aveco Astra automation system that cooperates with Provys Traffic Management software. After importing playlists from Provys, Astra checks the playlist and playout servers in search of requested materials. If there are no materials found on the playout servers, the ingest server and MAM central storage are checked depending on the information about the origin of the files contained in the playlists. If there is material on an ingest server or on the MAM storage, then the transfer to the playout servers is initiated. If there is no material in the system, then the decision about its ingesting or tape playing is made.
the different production areas. The second level is called the deep archive (SGL Flashnet), that provides the HSM functionality, which is required to control a tape library (IBM tape robot with LTO drives) and
interfaces with the MAM solution by an integration package of Interplay. For archived assets a high level of data safety is achieved under control of the HSM by duplicating file assets within the
The core of the new post production system is an Avid ISIS shared disk array and Interplay media management platform
Polsat’s new post production configuration Servers:
Workstations:
7 x Isis chassis, total capacity 224TB 4 x System Director 3 x Interplay Engine 4 x Interplay Media Indexer 4 x Interplay Transcoder 2 x Interplay Transfer Manager 19 x Airspeed 2 x iNews
Many functional groups
(playout servers, automation and scheduling systems) within the production chain had to be integrated with the Interplay MAM platform. The Provys scheduling system creates various actions, which trigger other functional groups. The MAM system executes the rundowns according to this schedule, based on defined user interactions and workflows, and provides the interfacing or integration layer between all functional groups. To support such a tapeless
infrastructure together with a file-based workflow, material from the tape archive needs to be ingested. Such an integrated archive can collaborate with particular production computer systems which are connected to a computer and media backbone network (fibre, single and multi-mode GigE, HD-SDI) that is able to transfer
117 x VideoClient (MediaComposer Adrenaline/Mojo SDI, Assist) 2 x Protools (audio processing) 1 x DS (compositing workstation)
Network infrastructure: 2 x CiscoNexus7000 7 x CiscoCatalyst4948 5 x CiscoCatalyst3750
traffic generated by the implemented workflows. In 2009, a digital archive was implemented for news production system that is based on Avid Interplay and SGL FlashNet media management software. This archive, based on EMC2 CX-4 120C disk array, StorageTek SL500 tape library, SGL FlashNet and Avid Interplay management software, is a logical extension of the ISIS production disk space. The capacity of the tape library is about 230TB that equals 18,400 hours of DV25 4:2:0 material.
Organising the archive The station’s digital archive is organised on two levels. The first level provides the central storage for archived versions of proxy and high-resolution materials used in current production. The central disk array is also used as an integration platform between
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