(12/05/2014) Sony is actively developing IP-based approaches for professional video production, and has developed a new AV over IP Interface. This packetizes video, audio, and metadata, enabling real-time transmission between equipment via standard network infrastructures.
Taking use of this technology, Sony configures IP Live Production systems in order to increase operational efficiency and to reduce system cost for TV live productions with OBVans and in studios.
To promote AV over IP Interface to be widely used in various video-production products, Sony LSI Design Inc. has newly developed LSIs (large-scale integrated circuit), and technical specifications that enable the deployment of related FPGAs (Field-programmable gate array). Sony has started a licensing program open to manufacturers of video-production products.
At NAB 2014, Cisco and Sony became the first companies to publicly demonstrate the live delivery of full-frame rate 4K 60P content. The live demonstration, which streamed live 4K video from New York City to Las Vegas, was on display for NAB show attendees at the Cisco booth and the Sony booth.
Live events in New York City were captured with the Sony F55 4K camera, and HEVC encoded using Cisco's Videoscape AnyRes with enhanced support for 4K and HEVC (8-bit dynamic range, streamed at 15 Mbps). The live stream crossed the country to Las Vegas via Time Warners dedicated IP backbone, not the public Internet. The stream then was delivered to the Las Vegas Convention Center, where it was decoded with a ViXs set-top box with 4K support, and displayed on Sony XBR 4K Ultra HD TVs.
AV over IP Interface for Transmission
Sony's approach combines the latest IP network technologies with current SDI standard interface for any resolution of video transmission. While conventional systems require multiple different types of cables to carry various signal types (video, audio, reference, metadata and control data), this new approach requires only a single standard network cable passing through conventional network switches. Sony has combined unique pieces of technology with already established standards to achieve reliable, scalable and stable transmission. This new technology supports direct connection of numerous types of production devices onto the IP network. Furthermore, it enables simultaneous transmission to multiple points and real time noiseless source switching, handling SD, HD and 4K video resolutions together. The new IP Live Production system has been designed to be flexible and scalable, since users have the ability to migrate to greater capacities (number of devices) and higher video resolutions including HD to 4K over time.
Towards the IP OBVan
In 2013 Sony has built Telegenic's T25, the first multi-camera OBVan dedicated for 4K. T25 was sent to Brazil to cover three matches of the FIFA Confederations Cup. T25 now again is on its way to Brazil to cover three matches in 4K including the final in Rio de Janeiro. T25 is an all-coaxial vehicle. Every single 4K feed in T25 needs four 3G HD-SDI cables. In addition to the costing of the installation it takes a lot of weight. Going forward the replacement of the four wires in the truck with a single fibre connection would dramatically reduce the weight. Sony's goal is to replace this with Cat 6 or Cat 7 cable or 10 Gbps Ethernet fibre connections.
The proprietary AV over IP Interface developed by Sony LSI Design Inc packetises video, audio, meta & control data for signal transmission between production equipment via standard network infrastructures. Sony will introduce IP packet transmission directly to all its 4K devices from cameras, monitors, XAVC servers and MVS-X switchers to Anycast Touch. In the not too distant future we will see RJ45 ethernet ports side by side with coaxial BNC connectors. This should enable system integrators to reduce the cost of implementing 4K in OB trucks. Currently four coaxial cables support a single 4K signal making the cost prohibitive. The only way to negate this is to move to an IP infrastructure.
For devices that cannot be retrofitted right away or easily, Sony will have small portable conversion boxes to convert IP to HD-SDI or the other way around. These modules are set for release by the end of 2014. Other parts of the IP Live Production system include an IP Live System Manager, which among other duties will monitor Quality of Service levels. This is also due by the end of the year.
In making the transition to IP no one can risk removing any of the user experience the industry has gained from decades of broadcast engineering. Real-time video over IP with the same speed and latency has to be guaranteed as is standard today with coaxial otherwise the technology will not be adopted by users. To achieve broadcast quality IP genlocking Sony is using IEEE 1588, a precision time protocol that permits a seamless switching of different devices over IP. This has to work with baseband video as well as compressed streams at HD and Ultra HD.
Licensing Program Launch
Sony intends to have a licensing program for AV over IP Interface for manufacturers of video-production products in order to widely promote adoption of this technology. This licensing program will provide Sony LSIs (which implement this technology) and license it to manufacture FPGA IP core products.
Sony will actively collaborate with FPGA solution providers. Xilinx will be working with Sony under licensing program to enable the deployment of programmable-based video-production equipment. In addition, Sony will continue to collaborate with other thought leaders in the video over IP solutions space like Altera Corporation and Macnica Americas Inc. as FPGA solution providers to continue to innovate next generation video over IP solutions.
IP Live System Manager and SDI-IP converter Demonstration at NAB 2014
The IP
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(12/05/2014) Sony is actively developing IP-based approaches for professional video production, and has developed a new AV over IP Interface. This packetizes video, audio, and metadata, enabling real-time transmission between equipment via standard network infrastructures.
