Sirius Video

Broadcast-Quality Digital Video

The Sirius Video digital video option board provides premier broadcast-quality video for the Silicon Graphics family of high-end workstations and compute servers. Sirius Video, coupled with the world's fastest graphics, is the first system to blend real-time digital video processing, computer-generated graphics, 3D geometry, image processing, and supercomputing processing. Video professionals as well as novices can use this powerful, fully interactive, general-purpose environment to produce dazzling broadcast-quality video. Its flexibility and power make it ideal for scientific or research applications, which require full-performance video capture and manipulation.

Pre/Postproduction, Broadcast, and Corporate Communications

Now you can use a single cost-effective general-purpose system instead of expensive, special-purpose dedicated hardware for production, postproduction, broadcast, interactive television, and corporate communications. Perform off/on-line edits, composites, image alterations, CGI, digital video effects, animation, character generation, and more, all on a general-purpose system.

Image Acquisition, Processing, and Analysis

Sirius Video offers application developers, scientists, researchers, and medical and technical professionals unprecedented performance for digital image manipulation, data capture and record, sequence playback, colorspace conversion, and live video texture at 30fps with high video resolution.

Open, Flexible, Expandable Platform

Sirius Video is available for POWER Onyx, Onyx, and Reality Station graphics workstations.

Additionally, it can be used in POWER CHALLENGE and CHALLENGE server configurations to provide video server capabilities. The most powerful systems in the Silicon Graphics binary-compatible product line are the Onyx and CHALLENGE family workstations and servers. These systems are based on a highly balanced architecture combining multiple CPUs with high-speed I/O and large memory capacities. Integrated with Sirius Video, they provide the most powerful, flexible, and expandable platform available for serious video requirements:

• Up to 16 gigabytes of main memory on Onyx or CHALLENGE family systems

• Up to 3.5 terabytes of data storage capacity on Onyx and CHALLENGE systems translates to 32 hours of uncompressed full-resolution video

• Up to 24 MIPS R4400 CPUs in the Onyx workstation and 36 CPUs in the CHALLENGE server

  
  

• Support for multiple video formats, including 8 or 10-bit digital video I/O (4:4:4:4, 4:2:2:4 or 4:2:2), in addition to analog component, analog composite, and S-Video I/O capabilities

• Two video input frame buffers which can each store up to 4 fields of full bandwidth (4:4:4:4) with 10-bits per component

• Access through easy-to-use graphical user interface panel or callable video library routines from within an application

  
  

• Support for multiple Sirius Video boards in rack systems

• Multiple CCIR 601 input streams per board

• Broadcast-quality CCIR 601

• Broadcast-quality analog component (10-bit oversampled output)

• Consumer-quality analog composite NTSC, PAL, and S-Video

• Real-time video capture and output at 30fps or 25fps

• Real-time video to/from host memory via VME 32-bit or VME 64-bit transfer mode (Capture and transfer may not run concurrently; only one video source may be captured at a time)

• Real-time video texturing input capabilities at high resolution onto computer generated 3D geometry

• Maintains primary input source colorspace for transparent digital processing

• No frame drops - Sirius Video coupled with the Onyx graphics framelock capability means that graphics display and video frame rates are synchronized

  
  

• Live video in a window, which can then be manipulated via the graphics subsystem with IRIS Graphics Library or ImageVision Library

• User-selectable color space conversions in going to/from RGB and YUV

• Separate alpha/key inputs, output, and buffers allow compositing

• Separate keys for each of the video input buffers allow compositing

• Chroma Key generator allows soft alpha/key extraction from input sources

  
  

• Standard V-LAN transmitter built-in for device control

• General-purpose interface (GPI) for external event triggering

• Session recording with built-in scan converter - multiple high-resolution formats can be scan-converted down to 525 or 625 video output formats

• Signal interface connections via convenient rack-mountable remote access panel

  
  

Technical Specifications

Digital component              4:2:2,4:2:2:4,    CCIR 601 (8/10-bits)
525 and 625 timings            4:4:4:4           SMPTE dual link (8/10 Bits)

Analog component               RGBA, YUVA        Betacam, MII, SMPTE
525 and 625 timings            PrYPbA            10-bit ADC/DAC 2x oversampling output

Analog composite                                 NTSC, PAL, S-Video
525 and 625 timings

Video Inputs

2 serial/parallel digital      CCIR 601, SMPTE dual link (serial I/O available as separate option)
1 analog component             RCBA, YUVA, PrYPbA
1 analog composite             NTSC, PAL, S-Video

Video Outputs

1 serial/parallel digital      CCIR 601, SMPTE dual link (serial I/O available as separate option)
1 analog component             RGBA, YUVA, PrYPbA
1 analog composite             NTSC, PAL, S-Video

Additional Features

Genlocked output sync P-P jitter <10nsec
2 GPI input lines
2 GPI output lines
V-LAN interface
Loopthrus for all analog inputs

System Requirements

Requires VME Slot

Full functionality with integrated graphics supportrequires
RealityEngine, RealityEngine or VTX graphics Reduced server
functionality without integrated graphicsrequires Crimson, POWER
Series and CHALLENGE systems (includes server models, XS, XS24,
Elan Graphics, Extreme and VGXT graphics systems)

Component Analog I/O

Input impedance                        50KOhm and 5pF capacitance
Input return loss                      >40dB to 55MHz
Component analog frequency response    Input:  +-0.25dB to 1MHz
                                               +-0.5dB to 5.4MHz
                                       Output: +-0.25dB to 1MHz
                                               +-0.5dB to 5.2MHz
                                               with sin x/x compensation
Group delay                            +-20nsec to 5.5MHz
Output signal to noise ratio           >63dB typical, unweighted to
                                       5.0MHz (GBR or YUV)
Input signal to noise ratio            >55dB unweighted to 5.0MHz
                                       (GBR or YUV)

For more information please call:

U.S. 1(800) 800-7441
Europe (41) 22-798.75.25
North Pacific (81) 3-5420.71.10

South Pacific (61) 2-879.95.00
Latin America 1(415) 390.46.37
Canada 1(416) 625-4747

Silicon Surf - World Wide Web Server

URL: http://www.sgi.com/

Corporate Office

2011 N. Shoreline Boulevard
Mountain View, CA 94043
(415) 960-1980

1995 Silicon Graphics, Inc. All rights reserved. Specifications subject to change without notice. Silicon Graphics, the Silicon Graphics logo, ImageVision Library, and IRIS are registered trademarks, and Sirius Video, Onyx, Crimson, POWER Series, RealityEngine2, RealityEngine, VTX, CHALLENGE, IRIS Graphics Library, Elan Graphics, and VGXT are trademarks of Silicon Graphics, Inc. MIPS is a registered trademark and R4400 is a trademark of MIPS Technologies, Inc. Extreme is a trademark used by Silicon Graphics, Inc., under license. All other trademarks mentioned herein are the property of their respective owners.