91b01072c8da73011992783643d5cdcd.ppt
- Количество слайдов: 34
TM July 9, 1999 1
TM SGI Video Servers Hilmi Ortadeveci Applied Engineer VST hilmi@sgi. com July 9, 1999 2
SGI Video Servers TM Overview • Based on SGI Origin Servers • SGI Hardware, Software, and Services to produce a broadcast quality video server July 9, 1999 3
SGI Video Servers TM Key Features • Open System Architecture • Format Independent • Treats Media Content as Both Media and Data Simultaneously – High speed data networks – File transfer and play/record simultaneously July 9, 1999 4
Origin Servers TM Hardware Platform • cc. NUMA architecture – Extremely high throughput (multiple uncompressed HD) – Scalable • No limits like bus-based architectures • Origin 200 GIGAchannel – High volume product – Highly reliable • Redundant power and cooling • Mirrored system disks July 9, 1999 5
Origin Servers TM Storage Options • Internal and External Ultra. SCSI storage – RAID-0 or RAID-1 • External Fibre Channel storage – Ciprico Fibre. STORE and Ciprico 7000 – RAID-0, RAID-1, or RAID-3 July 9, 1999 6
Origin Servers TM Software Platform - IRIX 6. 5 • Variant of SVR 4 • REACT Real-time Scheduling • UST/MSC Synchronization • XFS Real-Time Filesystems and Guaranteed Rate I/O • XLV Logical Volumes • dm. Buffers July 9, 1999 7
SGI Video Server Software Key Features TM Video Server Toolkit • Modular, Extensible Architecture • Frame Accurate – Automation control protocols • Format Independent – MPEG-2 to Film • I/O Independent – Video, bit stream, network, etc. July 9, 1999 8
VST Architecture Block Diagram Archive TM Control VTR Core Storage Format Media I/O Device July 9, 1999 9
VST Architecture Format Modules TM • Handle for accessing specific storage formats • Translation from Media Units to Data Access Untis – Timecode to byte offset July 9, 1999 10
VST Architecture Format Modules TM Implementations • Variable Frame Size (vframe) – RICE, M-JPEG, Uncompressed • Bitstream (stream) – MPEG-2 Transport Stream and Program Stream • DVCPRO (dif) – DVCPRO • Virtual Clip (vclip) – EDLs July 9, 1999 11
VST Architecture Format Modules TM Virtual Clips • Built from Sequences of Other Clips – List of clips with edit points – Shares media content with original clip – Clip segments must be of the same format • Treated like All Other Formats • Handles Deletion of Original Clip July 9, 1999 12
VST Architecture Media Modules TM Interface to Media I/O Devices • Manage transfers to and from I/O Device • Define Port to I/O Device Mapping July 9, 1999 13
VST Architecture Media Modules TM Implementations • DIVO, DIVO-DVC – Uncompressed, RICE, DVCPRO, SDTI • DVB-ASI – MPEG-2 Transport Stream (up to 45 Mb/s) • Vela 4 -port MPEG-2 decoder – MPEG-2 Transport and Program Streams • O 2 (For Development Purposes) – M-JPEG July 9, 1999 14
VST Architecture Media Controller Modules TM • Special Media Modules Implement Slave Device Control – Standard Sony/P 2 Protocol • Enables Consistent Control Interface July 9, 1999 15
VST Architecture Storage Module TM • Manages Data Storage • XFS Storage Module – XFS Real-Time Filesystems – XFS Guaranteed Rate I/O July 9, 1999 16
VST Architecture Archive Modules TM • Interface to Archive Systems – Separate Storage from Clip Cache – Find, Get, Put interfaces • Implementations – – Studio. Central Asset Transfer Service Special Archive Modules fsmon clip mirror July 9, 1999 17
VST Architecture Control Modules TM Implementations • MVCP – Text-based native control protocol of VST • Louth VDCP – de-facto standard automation protocol • Sony/P 2 – de-facto standard VTR control protocol July 9, 1999 18
VST Architecture Customizable Controls TM • Categories of Configurable Parameters – File System, Media, System • Monitor and Adjust System Behavior • Establish Initial Values – Control Files July 9, 1999 19
SGI Video Servers TM User Tools • GUI Status (mcstat) • GUI VTR Emulation (mcpanel) • GUI Clip Management (mcclips) • Various Command Line Utilities – Status and Clip Management July 9, 1999 20
mcstat TM Status Monitoring • Status of Units • Clip Loaded • Unit State • Position July 9, 1999 21
mcpanel TM GUI VTR Emulation • Cue, Play, Stop, Record, Jog, Shuttle, . . . Loop Mode • Forward and Backward Clip Selection Box July 9, 1999 22
mcclips TM GUI Clip Management • Delete, Protect, . . . Archive Operations • Find, Get, Put July 9, 1999 23
SGI Video Servers TM Video Server Products • Post-Production Video Server – Non-Compressed and Lossless-Coded storage format with digital I/O • DVCPRO Video Server – DVCPRO storage format with digital I/O • Cable Insertion Server – MPEG-2 storage format with analog I/O • DTV Server – MPEG-2 storage format with DVB-ASI I/O July 9, 1999 24
Post-Production Video Server TM Non-Compressed and Lossless Coded • Up to 16 channels (8 input and 8 output) • Serial Digital Video – 4: 2: 2 or 4: 2: 2: 4 • Embedded Audio or Separate AES/EBU Audio – Up to 8 channels per video • Up to 12 hours storage • Automation protocol support – Master and Slave VTR Control July 9, 1999 25
DVCPRO Video Server TM DVCPRO Format • Up to 16 channels (8 inputs and 8 outputs) • Serial Digital Video • AES/EBU Digital Audio • SDTI support – 4 X Transfer of DVCPRO • Up to 48 hours storage • Automation protocol support – SGI MVCP, Louth VDCP, and Sony VTR July 9, 1999 26
Cable Insertion Server TM MPEG-2 Format • Up to 48 channels (48 outputs) – Input via File Transfer • Analog Video Output • Analog Audio Output • Up to 24 hours storage • Automation protocol support – SGI MVCP and Louth VDCP July 9, 1999 27
DTV Server TM MPEG-2 Compressed I/O • DVB-ASI I/O – MPEG-2 Multi-Program Transport Stream • Up to 48 Mb/s • Up to 56 hours storage at 6 Mb/s • Automation protocol support – SGI MVCP and Louth VDCP July 9, 1999 28
Video Server Deployments TM Sveriges Television (SVT) - Stockholm • 10 Regional SGI DVCPRO Servers around Sweden • File Transfer to Stockholm • Editing in Stockholm using Avid NLE • On-Air Playout from SGI DVCPRO Server • Status – Installed April 1, 1999 – On-Air June 21, 1999 July 9, 1999 29
Panasonic DNA System TM DVCPRO News Automation – DVCPRO-based Digital Newsroom System • SGI DVCPRO Video Server • Panasonic NLEs, VTRs, Camcorders – News. BYTE/Quick. Cutter and DVEdit NLEs • Prisa Fibre Channel Network – Fibre Channel Adapters and Switch July 9, 1999 30
Panasonic DNA System TM DVCPRO News Automation • Connects with external Automation System – News. Maker/Nexus – Crispin Corp. • DNA System is sold by Panasonic July 9, 1999 31
DNA System Diagram TM SGI DVCPRO Server Transmission SDTI SDI Acquisition SDI SDTI Feeds Fibre Channel Quick. Cutter NLE SMART-CART July 9, 1999 32
DNA System Deployments TM Austin News 8 - Austin, TX • Time-Warner Cable 24 hour local news channel – Installed June 1, 1999 – Planned On-Air July 23, 1999 KYW - Philadelphia • CBS owned and operated station – Planned Install July 15, 1999 – Planned On-Air August 15, 1999 July 9, 1999 33
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