Published on February 8, 2008
Digital Cinematography 'A smart look beyond HD-SDI, a new cinema production infrastructure based on 10G Ethernet' High speed interfacing for future production workflows IP-Racine, European R&D project workshop on IDIFF at Jan 30th, 2008 Thomas Brune – Corporate Research Center Hannover, Germany
Structure q HD-SDI production infrastructure à ‘wish list’ q Vision on high speed interfacing q Paradigm change, but real-time AV q Prototype interface modules q Summary Thomas BRUNE 30.01.2008 2
Structure q HD-SDI production infrastructure à ‘wish list’ q Vision on high speed interfacing q Paradigm change, but real-time AV q Prototype interface modules q Summary Thomas BRUNE 30.01.2008 3
Today: Acquisition workflow for DC Dual HD-SDI q Bandwidth for up to 1080p/2k (30fps) q Physical point-to-point connections q Only streaming data Notebook Record ctrl, Single Frame preview Post location Dual 100M Eth HD-SDI out Dual SCSI FedEX HD-SDI Dual ‚by days‘ Viper HD-SDI in out Bup ctrl ‚over night‘ Storage Disk storage Tape (DLT) Dual (1h; no redundancy) (redundant copies) Production HD-SDI FlashPak out Dual HD-SDI in (10 min) Monitor Record view, Preview
Today: HD-SDI q Current HD-SDI acquisition infrastructure is restricted § only AV streaming § reduced capabilities for metadata § no control (stream/device), no file system access § bunch of additional interfaces needed (RS422/232, Ethernet, Genlock,..) § no interoperability with IT based applications in the flow/post q The bandwidth issue: § limited to: 1080p, 2k with 30fps § 1,5Gbit/s single link, 3GBit/s dual link, 3G-SDI Thomas BRUNE 30.01.2008 5
Today’s ‘wish list’ q A unified DC production infrastructure § consolidating AV-content, metadata and device control § 4k (8k) resolution, 3D, SloMo, ‘fast downloads’ (all uncompressed!) § close gap between DC acquisition and post pro (IT components) § (no isle solution only for DC …) § easy to handle, ‘just plug the cables and select the AV-formats …’ q Spoken in ‘technical terms’: § interface with real-time behavior and flexible protocols § ~10Gbit/s bandwidth required by today - and even more à roadmap § common interface technology for AV devices and computers § (one solution for DC, HD production, …) Thomas BRUNE 30.01.2008 6
What solution is the best? q 3G-SDI § only AV, reduced meta, no control § no roadmap § is dual-, quad-link really the solution in terms of more bandwidth? q Current isle implementations § 4 times HD-SDI multiplex over 10G fiber - only AV, reduced meta, no control § 10G InfiniBand - flexible protocols - existing roadmap - niche product for compute clusters, no native support for distances beyond 15 meters q 10G Ethernet § flexible protocols § lots of AV transmissions already done over Ethernet (but, mostly by over-provisioning) § broad acceptance in IT industries + existing roadmap Thomas BRUNE 30.01.2008 7
Structure q HD-SDI production infrastructure à ‘wish list’ q Vision on high speed interfacing q Paradigm change, but real-time AV q Prototype interface modules q Summary Thomas BRUNE 30.01.2008 8
Vision: Proposed DC acquisition flow 10G Ethernet based 10G Ethernet q Bandwidth for uncompressed 4k-DC, 3D and ‘Super Slomo’ q Consolidating: AV content + Notebook metadata + device control Control q Virtual point-to-point connections Metadata editing, Single Frame preview, … 10G Ethernet Post location 1G Ethernet Switch DC Camera 10G Ethernet (QoS) Tape 10G Ethernet 10G Ethernet WAN FlashPak Field Storage 10G Ethernet Recorder Post-Production Record view, Preview Daylies Monitor
Vision: Proposed ‚Live‘ HD production workflow 10G Ethernet based 10G Ethernet q Bandwidth for uncompressed HD ‘Super Slomo’ and multiplex HD Cameras q Consolidating: AV content + metadata + device control q Virtual point-to-point connections q Optical, 10km without repeater Switch (QoS) ~ ~ 10G („multiplex“, long distance -> 10km / 6.2miles) Playout & Broadcast HD SloMo-Camera Monitor Switcher Storage (play-in or SloMo-server)
Structure q HD-SDI production infrastructure à ‘wish list’ q Vision on high speed interfacing q Paradigm change, but real-time AV q Prototype interface modules q Summary Thomas BRUNE 30.01.2008 11
Paradigm change The Pro&Cons of packet oriented interfaces (Ethernet) replacing streaming interfaces (HD-SDI) q Pro § versatile usage of packets § flexible routing due to separate streams and virtual connections § transmission of only the active video saves bandwidth q Cons § new sync and clock transmission scheme has to be established Thomas BRUNE 30.01.2008 12
Real-time AV over 10G Ethernet means … q Local area network (LAN) with qualified devices § to have full control over devices and network § quality of service for bandwidth allocation and guarantee § no packet re-ordering, no packet loss § maximum latency in the range of few video lines q Standard IP and Ethernet protocols § slim implementation to avoid traffic overhead § compatible with PCs/workstations (post pro) § appropriate AV layers on top, to provide DPX, AIFF, Metadata, … q New synchronization scheme § to avoid the extra Genlock line Thomas BRUNE 30.01.2008 13
Others started AV & sync over Ethernet as well … q SMPTE/EBU just started a new sync/timing standardization approach targeting also packet interfaces q IEEE1588 – distributed clocks over IP networks q IEEE802.1 AVB – Ethernet with Audio-Video bridging Thomas BRUNE 30.01.2008 14
Structure q HD-SDI production infrastructure à ‘wish list’ q Vision on high speed interfacing q Paradigm change, but real-time AV q Prototype interface modules q Summary Thomas BRUNE 30.01.2008 15
Developments within IPracine q 10G Ethernet versatile interface architecture for embedded modules and real-time AV transmission § suitable for all production devices like cameras, field-recorder, monitors, etc ... § supporting the standard AV formats (DPX, AIFF, …) § protocols compatible to general IP/Ethernet stack (PC/workstations) § ‘device discovery’ for comfortable configuration of - AV-formats, video frame rate, etc … q Several prototype implementations § supporting mobile devices (small boards, low power consumption) § proof-of-concept and demonstrations q Prototype devices are § 10GE-Camera § 10GE-Mobile disk recorder § 10GE-Monitor Thomas BRUNE 30.01.2008 16
10G Ethernet embedded versatile interface module q Prototype board § ‘3 component solution’ (opt. Transceiver, XAUI Phy ASIC, FPGA) § standard IP/Ethernet protocol stack with small restrictions § accelerated protocol stack for real-time AV transmission up to 9 Gbit/s § stack for non real-time ‘control data’ up to 1 Gbit/s Thomas BRUNE 30.01.2008 17
Prototyping: 10GE-Camera q Camera prototype Prototype camera with 10G embedded interface module Thomas BRUNE 30.01.2008 18
Prototyping: 10GE-Mobile Disk Recorder Mobile Disk Recorder Prototype q With Hard Disk Drives q With Solid State Disk Drives q 10GBit Ethernet interface module 10GE interface module Thomas BRUNE 30.01.2008 19
Successful presentations q Dec ’06 first real-time video transmission over 10GE shown with demo-boards q Dec ’07 first ‘Record&Playback’ demonstrated with 10GE-DiscPack Thomas BRUNE 30.01.2008 20
Structure q HD-SDI production infrastructure à ‘wish list’ q Vision on high speed interfacing q Paradigm change, but real-time AV q Prototype interface modules q Summary Thomas BRUNE 30.01.2008 21
Summary q Today, § we have a bunch of interfaces on production devices - there is no interoperability with IT based post units § common equipment connection technology is restricted to 3Gbit/s, but 10Gbit/s or even more already required q We demonstrate a validated future strategic interface technology for power sensitive applications and long distances Thomas BRUNE 30.01.2008 22
Phone: +49 511 418 2347 CR-Hannover, HRI-lab
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