Cisco Cisco Content Security Management Appliance M670 Notas de publicación

This software is based in part on the work of the Independent JPEG Group.

USING THE IJG JPEG LIBRARY  

 

Copyright (C) 1994-2010, Thomas G. Lane, Guido Vollbeding.  

This file is part of the Independent JPEG Group's software.  

For conditions of distribution and use, see the accompanying README file.  

 

 

This file describes how to use the IJG JPEG library within an application  

program.  Read it if you want to write a program that uses the library.  

 

The file example.c provides heavily commented skeleton code for calling the  

JPEG library.  Also see jpeglib.h (the include file to be used by application  

programs) for full details about data structures and function parameter lists.  

The library source code, of course, is the ultimate reference.  

 

Note that there have been *major* changes from the application interface  

presented by IJG version 4 and earlier versions.  The old design had several  

inherent limitations, and it had accumulated a lot of cruft as we added  

features while trying to minimize application-interface changes.  We have  

sacrificed backward compatibility in the version 5 rewrite, but we think the  

improvements justify this.  

 

 

TABLE OF CONTENTS  

-----------------  

 

Overview:  

Functions provided by the library  

Outline of typical usage  

Basic library usage:  

Data formats  

Compression details  

Decompression details  

Mechanics of usage: include files, linking, etc  

Advanced features:  

Compression parameter selection  

Decompression parameter selection  

Special color spaces  

Error handling  

Compressed data handling (source and destination managers)  

I/O suspension