Technical Specifications for Cosmo Compress(tm)

Compression Engine

C-Cube CL560 Motion JPEG compression engine

System Compatibility

Indy(tm): All graphics, with Indy Video(tm)

Indigo2(tm): XL, XZ graphics, with Galileo Video(tm) or Indigo2 Video(tm)

Physical Characteristics and Interfaces

Indy: Single-wide GIO/32 card
GIO/32bis and SGI digital video interface

Indigo: Single-wide GIO/32 card

GIO/32 and SGI digital video interface

Indigo2: EISA form factor card

GIO/64 interface and SGI digital video interface to Indigo2 Video or Galileo Video and 601 option

Compression/Decompression Rates

60 fields/30 frames per second NTSC video

30 fields per second NTSC video

50 fields/25 frames per second PAL video

25 fields per second PAL video

Frame-by-frame mode

4:1 to 100:1 software selectable

Compress one or two fields per frame

Full or half resolution vertically and/or horizontally

Image Scaling

Zoom-down of decompressed images

Software selectable

Arbitrary filtered zoom-down of decompressed images to the graphics display

Data Paths

Decompression: Host memory to Video card
Host memory to host memory

Compression: Video card to host memory

Host memory to host memory

Software Selectable

Data Formats

8-bit per component 4:2:2 YUV to/from Video card

8-bit per component 4:2:2 YUV to/from host memory

24-bit RGB to/from host memory

Software Selectable

Synchronization

Sync to external source through Video card

Optional Products from Silicon Graphics

Digital Media Development option

Cosmo Compress must have one of the following video option cards installed:
Indy Video

Indigo2 Video

Galileo Video

Galileo Video with 601 option