1.
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

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
2

3.
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

4.
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

5.
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

6.
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

7.
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

8.
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

9.
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

10.
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)

11.
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

12.
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
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13.
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

14.
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

15.
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

16.
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
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17.
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
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18.
Prototyping: 10GE-Camera
q Camera prototype
Prototype camera with 10G embedded interface module
Thomas BRUNE 30.01.2008
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19.
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
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20.
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

21.
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

22.
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
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23.
Phone: +49 511 418 2347
CR-Hannover, HRI-lab