In Broadcast - December 2011/January 2012 - 90

InFILE

Multi-Channel Video Encoding On A PC In Realtime
By Steven Deschuyteneer, Worldwide Director of Sales and Marketing
Can a PC achieve multi-channel video encoding at broadcast quality in realtime? With the amazing evolution of PC processing power over the last decade, the answer is obviously: “Yes.” Consequently, hardware encoders are progressively replaced by computers and software s o l u t i o n s , allowing systems to be more flexible, to evolve faster with the market demands and to stay in line with the available technologies. Delta Codec To achieve that, software-based encoders need to be interfaced with existing broadcast-grade video capture and production systems: they need SDI inputs. Working closely to software codecs vendors, DELTACAST (www.deltacast.tv) develops and manufactures professional video interface cards for computer platforms. DELTACAST also provides computer-based encoders and decoders manufacturers with a sharp software development their products. Today, broadcasters address more than the traditional TV market; they are committed to support the convergence of TV, web and mobile platforms, with different codecs targeting an increasing set of display resolutions and quality, as well as various transmission bandwidths. Depending on the available infrastructure in place, encoders need not only SDI inputs but also file, network or cable outputs; today the ASI standard still remains a very popular cable interface for encoded content distribution. DELTACAST proposes a full range of ASI and SDI cards in its portfolio and has even developed a specific family, called CODEC, which has both ASI and SDI I/Os on the same cards, all managed by the unified VideoMasterHD SDK.
Steven Deschuyteneer

kit that ease integration of the cards in their product. Moreover, DELTACAST customers have access to a high-quality technical assistance when implementing

Video encoders are required to manage more and more streams simultaneously. So the ability to increase encoded channels per 1U slot is a key point. DELTACAST features the best channels-per-U ratio within its wide portfolio of video I/O cards: up to 4 channels (HD SDI or ASI) on a lowprofile PCI Express card, and up to 8 ASI channels on a standardheight PCI Express card. All DELTACAST cards implement high-throughput DMA transfers on bus master controllers, so the CPU can be completely dedicated to the encoding process. Tomorrow computers will allow addressing more channels and more compression schemes. In cooperation with its customers, DELTACAST already prepares its next-generation cards family to support them.

Manor Marketing is a full service, creative and targeted marcoms, marketing and PR agency operating in the broadcast sector and is proud to represent the best of broadcast manufacturing & services in the industry

72/73 Bartholomew Street, Newbury, Berkshire, RG14 5DU, UK Tel: +44 (0) 1635 44991 Email: info@manormarketing.tv www.manormarketing.tv

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