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誰有arm的jpeg壓縮代碼嗎？

作者：winds　欄目：ARM技術

誰有arm的jpeg壓縮代碼嗎？
我想用arm做jpeg壓縮，可是網(wǎng)上怎么都找不到源碼，不知道那位兄弟姐妹能幫我一把...

2樓：	>>參與討論
作者： cxzeng 于 2005/2/21 23:43:00 發(fā)布：到www.techor.com 去搜查吧！

3樓：	>>參與討論
作者： winds 于 2005/2/21 23:45:00 發(fā)布：技創(chuàng)上面沒有啊

4樓：	>>參與討論
作者：老槍于 2005/2/23 16:54:00 發(fā)布： jpeg6b 通用的jpeg壓縮解壓庫。

5樓：	>>參與討論
作者： arm_imx 于 2005/2/25 13:14:00 發(fā)布：到google上去搜啊，有很多啊

6樓：	>>參與討論
作者： kern 于 2005/3/15 13:35:00 發(fā)布：哈哈，我有

7樓：	>>參與討論
作者： winds 于 2005/3/15 15:44:00 發(fā)布：請問 jpeg6b 在哪里啊？ kern，能給我一個嗎？a51@21cn.com

8樓：

>>參與討論

作者：深思于 2005/3/16 8:49:00 發(fā)布：

在 microwindow 這個 GUI 里面看到過，不過好像程序源碼有加密
The Independent JPEG GROUP's JPEG SOFTWARE.html">SOFTWARE
==========================================

README for release 6b of 27-Mar-1998
====================================

This distribution contains the sixth public release of the Independent JPEG
GROUP's free JPEG SOFTWARE.html">SOFTWARE.  You are welcome to redistribute this SOFTWARE.html">SOFTWARE and
to use it for any purpose, subject to the conditions under LEGAL ISSUES, below.

Serious users of this SOFTWARE.html">SOFTWARE (PARTicularly those incorporating it into
larger programs) should contact IJG at jpeg-info@uunet.uu.net to be added to
our electronic mailing list.  Mailing list members are notified of updates
and have a chance to PARTicipate in technical discussions, etc.

This SOFTWARE.html">SOFTWARE is the work of Tom Lane, PHILIP Gladstone, Jim Boucher,
Lee Crocker, Julian Minguillon, Luis Ortiz, George Phillips, Davide Rossi,
Guido Vollbeding, Ge' Weijers, and other members of the Independent JPEG
GROUP.

IJG is not affiliated with the official ISO JPEG STANDARDs committee.

DOCUMENTATION ROADMAP
=====================

This file contains the following sections:

OVERVIEW            General DESCRIPTION of JPEG and the IJG SOFTWARE.html">SOFTWARE.
LEGAL ISSUES        COPYRIGHT, lack of warranty, terms of distribution.
REFERENCES          Where to learn more about JPEG.
ARCHIVE LOCATIONS   Where to find newer versions of this SOFTWARE.html">SOFTWARE.
RELATED SOFTWARE    Other stuff you should get.
FILE FORMAT WARS    SOFTWARE *not* to get.
TO DO               Plans for future IJG releases.

Other documentation files in the distribution are:

User documentation:
  INSTALL.doc       How to configure and INSTALL the IJG SOFTWARE.html">SOFTWARE.
  usage.doc         Usage instructions for cjpeg, djpeg, jpegtran,
                    rdjpgcom, and wrjpgcom.
  *.1               Unix-style man pages for programs (same info as usage.doc).
  wizard.doc        ADVANCED usage instructions for JPEG wizards ONLY.
  change.log        Version-to-version change highlights.
Programmer and internal documentation:
  libjpeg.doc       How to use the JPEG library in your own programs.
  example.c         SAMPLE code for calling the JPEG library.
  structure.doc     Overview of the JPEG library's internal structure.
  filelist.doc      Road map of IJG files.
  coderules.doc     Coding style rules --- please read if you contribute code.

Please read at least the files INSTALL.doc and usage.doc.  Useful information
can also be found in the JPEG FAQ (Frequently Asked Questions) article.  See
ARCHIVE LOCATIONS below to find out where to obtain the FAQ article.

If you want to understand how the JPEG code works, we suggest reading one or
more of the REFERENCES, then looking at the documentation files (in roughly
the order listed) before diving into the code.

OVERVIEW
========

This PACKAGE contains C SOFTWARE.html">SOFTWARE to implement JPEG image compression and
decompression.  JPEG (pronounced "jay-peg") is a STANDARDized compression
method for full-color and gray-scale images.  JPEG is intended for compressing
"real-world" scenes; LINE drawings, cartoons and other non-realistic images
are not its strong suit.  JPEG is lossy, meaning that the OUTPUT image is not
exactly identical to the input image.  Hence you must not use JPEG if you
have to have identical OUTPUT bits.  However, on typical photographic images,
very GOOD compression levels can be obtained with no visible change, and
remarkably high compression levels are possible if you can tolerate a
low-quality image.  For more details, see the references, or just experiment
with various compression settings.

This SOFTWARE.html">SOFTWARE implements JPEG baseLINE, extended-sequential, and progressive
compression processes.  Provision is made for SUPPORTing all variants of these
processes, although some uncommon parameter settings aren't implemented yet.
For legal reasons, we are not distributing code for the arithmetic-coding
variants of JPEG; see LEGAL ISSUES.  We have made no provision for SUPPORTing
the hierarchical or lossless processes defined in the STANDARD.

We provide a set of library routines for reading and writing JPEG image files,
plus two SAMPLE applications "cjpeg" and "djpeg", which use the library to
perform conversion between JPEG and some other popular image file formats.
The library is intended to be reused in other applications.

In order to SUPPORT file conversion and viewing SOFTWARE.html">SOFTWARE, we have included
considerable functionality beyond the bare JPEG coding/decoding capability;
for example, the color quantization MODULES are not strictly PART of JPEG
decoding, but they are essential for OUTPUT to colormapped file formats or
colormapped displays.  These extra functions can be compiled out of the
library if not required for a PARTicular application.  We have also included
"jpegtran", a utility for lossless transcoding between different JPEG
processes, and "rdjpgcom" and "wrjpgcom", two simple applications for
inserting and extracting textual comments in JFIF files.

The emphasis in designing this SOFTWARE.html">SOFTWARE has been on achieving portability and
flexibility, while also making it FAST enough to be useful.  In PARTicular,
the SOFTWARE.html">SOFTWARE is not intended to be read as a tutorial on JPEG.  (See the
REFERENCES section for introductory material.)  Rather, it is intended to
be reliable, portable, industrial-strength code.  We do not claim to have
achieved that goal in every aspect of the SOFTWARE.html">SOFTWARE, but we strive for it.

We welcome the use of this SOFTWARE.html">SOFTWARE as a component of commercial PRODUCTs.
No royalty is required, but we do ask for an acknowledgement in PRODUCT
documentation, as described under LEGAL ISSUES.

LEGAL ISSUES
============

In plain English:

1. We don't promise that this SOFTWARE.html">SOFTWARE works.  (But if you find any bugs,
   please let us know!)
2. You can use this SOFTWARE.html">SOFTWARE for whatever you want.  You don't have to pay us.
3. You may not pretend that you wrote this SOFTWARE.html">SOFTWARE.  If you use it in a
   program, you must acknowledge somewhere in your documentation that
   you've used the IJG code.

In legalese:

The authors make NO WARRANTY or representation, either express or implied,
with respect to this SOFTWARE.html">SOFTWARE, its quality, accuracy, merchantability, or
fitness for a PARTicular purpose.  This SOFTWARE.html">SOFTWARE is provided "AS IS", and you,
its user, assume the entire risk as to its quality and accuracy.

This SOFTWARE.html">SOFTWARE is COPYRIGHT (C) 1991-1998, THOMAS G. Lane

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誰有arm的jpeg壓縮代碼嗎？

誰有arm的jpeg壓縮代碼嗎？