About This Guide

The OCTANE™ Compression motion JPEG option card from Silicon Graphics® provides two independent channels of full-resolution, full-motion, real-time video compression or decompression for the OCTANE desktop workstation.

OCTANE Compression fully utilizes all calls and controls in the Silicon Graphics Compression Library (CL), and works with other Silicon Graphics programming libraries, such as the Video Library (VL).

This guide explains features of the CL and VL for OCTANE Compression and gives step-by-step instructions for creating programs using CL, VL, or both that make use of OCTANE Compression board capabilities.


This guide is written for the sophisticated user with a background in
C programming who wishes to develop programs for OCTANE Compression capabilities, with or without interaction with its on-board video capability or the OCTANE Digital Video option.

Structure of This Document

This guide contains the following chapters and appendix:

An index completes this guide.

Other Documents

The following online documents are also included with the OCTANE Compression option:

  • OCTANE Digital Video and OCTANE Compression Installation Guide (007-3466-001)

  • Digital Media Programming Guide (007-1799-060 or later)


These type conventions and symbols are used in this guide:

Helvetica Bold  

Hardware labels


Executable names, filenames, IRIX commands, manual or book titles, new terms, program variables, tools, utilities, variable command line arguments, variable coordinates, and variables to be supplied by the user in examples, code, and syntax statements


Function name

Fixed-width type 

Error messages, prompts, and on-screen text

Bold fixed-width type  

User input, including keyboard keys (printing and nonprinting); literals supplied by the user in examples, code, and syntax statements


(Double quotation marks) On-screen menu items and references in text to document section titles


(Brackets) Surrounding optional syntax statement arguments